{"id":43262,"date":"2015-09-17T11:25:58","date_gmt":"2015-09-17T16:25:58","guid":{"rendered":"https:\/\/content.findlaw-admin.com\/ability-legal\/contracts\/uncategorized\/arrangement-agreement-redback-networks-inc-and-abatis-systems.html"},"modified":"2015-09-17T11:25:58","modified_gmt":"2015-09-17T16:25:58","slug":"arrangement-agreement-redback-networks-inc-and-abatis-systems","status":"publish","type":"corporate_contracts","link":"https:\/\/corporate.findlaw.com\/contracts\/planning\/arrangement-agreement-redback-networks-inc-and-abatis-systems.html","title":{"rendered":"Arrangement Agreement &#8211; Redback Networks Inc. and Abatis Systems Corp."},"content":{"rendered":"<pre>                      MADE as of the 30th day of July, 2000\n\n\n                                     AMONG:\n\n\n                              REDBACK NETWORKS INC.\n\n\n                                      -and-\n\n\n                                610381 B.C. INC.\n\n\n                                      -and-\n\n\n                           ABATIS SYSTEMS CORPORATION\n\n\n                        --------------------------------\n\n\n                              ARRANGEMENT AGREEMENT\n\n                                                              \n                        --------------------------------\n\n                             Fraser Milner Casgrain\n                            Barristers and Solicitors\n                      15th Floor - 1040 West Georgia Street\n                           Vancouver, British Columbia\n                                     V6E 4H8\n\n\n\n<\/pre>\n<table>\n<caption>\n<p>                                                           TABLE OF CONTENTS<br \/>\n<s>      <c>      <c>                                                                                                <c><\/p>\n<p>1.0      INTERPRETATION&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..1<br \/>\n         1.1      Definitions  &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;1<br \/>\n         1.2      Interpretation Not Affected by Headings, etc&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..5<br \/>\n         1.3      Currency&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.16<br \/>\n         1.4      Number, etc&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.16<br \/>\n         1.5      Date For Any Action&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..16<br \/>\n         1.6      Entire Agreement&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..16<br \/>\n         1.7      Accounting Matters&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;16<br \/>\n         1.8      Construction&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;16<br \/>\n         1.9      Knowledge&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;17<br \/>\n         1.10     Exhibits&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.18<br \/>\n         1.11     Qualifications to Intellectual Property Representations&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..18<br \/>\n2.0      THE ARRANGEMENT&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;18<br \/>\n         2.1      Implementation Steps by Abatis&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;18<br \/>\n         2.2      Implementation Steps by Redback Parties&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;19<br \/>\n         2.3      Interim Order&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..19<br \/>\n         2.4      Articles of Arrangement&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.20<br \/>\n         2.5      Abatis Proxy Circular&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;21<br \/>\n         2.6      Securities Compliance&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;21<br \/>\n         2.7      Preparation of Filings&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..23<br \/>\n         2.8      Lock-Up of Shares Issued Pursuant to the Arrangement&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..25<br \/>\n3.0      REPRESENTATIONS AND WARRANTIES&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;25<br \/>\n         3.1      Representations and Warranties of Abatis&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..25<br \/>\n                  3.1.1    Incorporation and Organization of Abatis&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..25<br \/>\n                  3.1.2    Capitalization&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.26<br \/>\n                  3.1.3    Authority and No Violation&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.27<br \/>\n                  3.1.4    No Defaults&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.30<br \/>\n                  3.1.5    Issued Shares and Options&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..30<br \/>\n                  3.1.6    No Other Shares&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;30<br \/>\n                  3.1.7    Financial Statements&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.30<br \/>\n                  3.1.8    Interim Statements&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;31<br \/>\n                  3.1.9    Business Carried on in Ordinary Course&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.32<br \/>\n                  3.1.10   Partnerships or Joint Ventures&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;34<br \/>\n                  3.1.11   Minute Books and Corporate Records&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..35<br \/>\n                  3.1.12   Accuracy of Books and Records&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.35<br \/>\n                  3.1.13   Guarantees&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..35<br \/>\n                  3.1.14   Interested Persons&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;35<br \/>\n                  3.1.15   Directors and Officers&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..37<br \/>\n                  3.1.16   Employment and Employee Benefit Matters&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;37<br \/>\n                  3.1.17   Pension and Retirement Plans&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..39<br \/>\n                  3.1.18   Debt Instruments&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..39<br \/>\n                  3.1.19   Real Property&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..40<br \/>\n                  3.1.20   Leases and Leased Property&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.40<br \/>\n                  3.1.21   Insurance&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;41<br \/>\n<\/c><\/c><\/c><\/s><\/caption>\n<\/table>\n<table>\n<s>               <c>      <c>                                                                                       <c><br \/>\n                  3.1.22   Material Agreements&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..41<br \/>\n                  3.1.23   No Breach of Material Contracts&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..43<br \/>\n                  3.1.24   Third Party Consents&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.44<br \/>\n                  3.1.25   Financial Forecasts&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..44<br \/>\n                  3.1.26   Obligations to Customers and Suppliers&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.44<br \/>\n                  3.1.27   Warranties and Indemnities&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.44<br \/>\n                  3.1.28   Legal Proceedings&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.44<br \/>\n                  3.1.29   Banking Information&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..45<br \/>\n                  3.1.30   Tax Matters&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.45<br \/>\n                  3.1.31   Accounts Receivable&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..46<br \/>\n                  3.1.32   Compliance with Applicable Laws&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..46<br \/>\n                  3.1.33   Consents and Approvals&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..47<br \/>\n                  3.1.34   No Business Restrictions&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;47<br \/>\n                  3.1.35   Environmental Matters&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;47<br \/>\n                  3.1.36   Liabilities&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.48<br \/>\n                  3.1.37   Condition and Sufficiency of Assets&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.48<br \/>\n                  3.1.38   Inventories&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.49<br \/>\n                  3.1.39   Intellectual Property&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;49<br \/>\n                  3.1.40   Information Technology&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..57<br \/>\n                  3.1.41   Commitments for Purchases or Sales at Losses&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.58<br \/>\n                  3.1.42   Significant Customers&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;58<br \/>\n                  3.1.43   Significant Suppliers&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;58<br \/>\n                  3.1.44   Government Programs&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..58<br \/>\n                  3.1.45   Product Liability&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.58<br \/>\n                  3.1.46   GST Registration&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..58<br \/>\n                  3.1.47   Advisory Fees&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..59<br \/>\n                  3.1.48   Other Negotiations; Brokers; Third Party Expenses&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..59<br \/>\n                  3.1.49   [This section intentionally deleted]&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;59<br \/>\n                  3.1.50   Disclosure&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..59<br \/>\n                  3.1.51   Approval of Arrangement&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.60<br \/>\n                  3.1.52   Agreements with Certain Shareholders&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;60<br \/>\n         3.2      Representations and Warranties of Redback&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.60<br \/>\n                  3.2.1    Incorporation and Organization&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;60<br \/>\n                  3.2.2    Capitalization&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.61<br \/>\n                  3.2.3    Authority and No Violation&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.61<br \/>\n                  3.2.4    No Defaults&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.64<br \/>\n                  3.2.5    Ownership of Exchangeco and Newco and Business of Exchangeco&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;64<br \/>\n                  3.2.6    Absence of Certain Changes or Events&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;64<br \/>\n                  3.2.7    Disclosure&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..64<br \/>\n                  3.2.8    SEC Documents; Redback Financial Statements&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..64<br \/>\n                  3.2.9    Exchangeable Shares&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..65<br \/>\n                  3.2.10   Redback Common Shares&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;65<br \/>\n                  3.2.11   Other Transactions&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;65<br \/>\n                  3.2.12   Exempt Interest&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;66<br \/>\n         3.3      Non-Waiver&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..66<br \/>\n         3.4      Survival&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.66<br \/>\n<\/c><\/c><\/c><\/s><\/table>\n<p>                                                                  ii<\/p>\n<table>\n<s>      <c>      <c>                                                                                                <c><br \/>\n4.0      ESCROW PROVISIONS&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.66<br \/>\n         4.1      Establishment of the Escrow Fund&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.66<br \/>\n         4.2      Recourse to the Escrow Fund&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;66<br \/>\n         4.3      Escrow Period; Distribution of Escrow Fund upon Termination of Escrow Period&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..67<br \/>\n         4.4      Minimum Threshold&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.67<br \/>\n5.0      COVENANTS&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;67<br \/>\n         5.1      Retention of Goodwill&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;67<br \/>\n         5.2      Material Commitments&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.68<br \/>\n         5.3      Covenants of Abatis&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..68<br \/>\n         5.4      Covenants of the Redback Parties&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.75<br \/>\n         5.5      Tax Deferred Status&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..77<br \/>\n         5.6      Applications for Regulatory Approvals&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..78<br \/>\n         5.7      Section 85 Elections&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.78<br \/>\n         5.8      Covenants Regarding Non-Solicitation&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;78<br \/>\n         5.9      Notice by Abatis of Superior Proposal Determination&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;80<br \/>\n         5.10     Access to Information&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;82<br \/>\n         5.11     Covenant Regarding Representations and Warranties&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..84<br \/>\n         5.12     Closing Matters&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;84<br \/>\n         5.13     Indemnification of Directors and Officers&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.84<br \/>\n         5.14     Employment and Related Matters&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;85<br \/>\n         5.15     Prohibition on Voluntary Liquidation&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;85<br \/>\n6.0      CONDITIONS&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..85<br \/>\n         6.1      Mutual Conditions Precedent&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;85<br \/>\n         6.2      Additional Conditions Precedent to the Obligations of the Redback Parties&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..87<br \/>\n         6.3      Additional Conditions Precedent to the Obligations of Abatis&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;89<br \/>\n         6.4      Notice and Cure Provisions&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.90<br \/>\n         6.5      Satisfaction of Conditions&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.91<br \/>\n7.0      AMENDMENT AND TERMINATION&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..91<br \/>\n         7.1      Amendment&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;91<br \/>\n         7.2      Mutual Understanding Regarding Amendments&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.91<br \/>\n         7.3      Termination&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.92<br \/>\n         7.4      Break Fee&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;94<br \/>\n         7.5      Liquidated Damages&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;95<br \/>\n         7.6      Remedies&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.95<br \/>\n         7.7      Effect of Break Fee Payment&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;95<br \/>\n         8.0      GENERAL&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..96<br \/>\n         8.1      Notices&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..96<br \/>\n         8.2      Assignment&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..97<br \/>\n         8.3      Binding Effect&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.97<br \/>\n         8.4      Waiver and Modification&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.97<br \/>\n         8.5      No Personal Liability&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;98<br \/>\n         8.6      Further Assurances&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;98<br \/>\n         8.7      Expenses&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.98<br \/>\n         8.8      Consultation&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;98<br \/>\n         8.9      Governing Laws&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.98<br \/>\n         8.10     Counterparts&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;99<br \/>\n<\/c><\/c><\/c><\/s><\/table>\n<p>                                                               iii<\/p>\n<p>Exhibit A    &#8212;    Affiliate&#8217;s Letter<br \/>\nExhibit B    &#8212;    Appropriate Regulatory Approvals<br \/>\nExhibit C    &#8212;    Arrangement Resolution<br \/>\nExhibit D    &#8212;    Exchange Trust Agreement<br \/>\nExhibit E    &#8212;    Plan of Arrangement<br \/>\n             &#8212;    Appendix 1 &#8211; Provisions Attaching to the Exchangeable<br \/>\n                                Shares of 610381 B.C. Inc.<br \/>\n             &#8212;    Appendix 2 &#8211; Escrow Agreement<br \/>\n             &#8212;    Appendix 3 &#8211; Exercise of Replacement Options<br \/>\nExhibit F    &#8212;    Principal Shareholder Voting Agreement<br \/>\nExhibit G    &#8212;    Support Agreement<br \/>\nExhibit H    &#8212;    Registration Rights Agreement<br \/>\nExhibit I    &#8212;    Assumption Agreement<\/p>\n<p>                                       iv<\/p>\n<p>                              ARRANGEMENT AGREEMENT<\/p>\n<p>         MEMORANDUM OF AGREEMENT made as of the 30th day of July, 2000.<\/p>\n<p>AMONG:<\/p>\n<p>       REDBACK NETWORKS INC., a corporation existing under the laws<br \/>\n       of the State of Delaware<\/p>\n<p>       (hereinafter referred to as &#8220;REDBACK&#8221;)<\/p>\n<p>AND:<\/p>\n<p>       610381 B.C. INC., a company existing under the laws of the<br \/>\n       Province of British Columbia (hereinafter referred to as<br \/>\n       &#8220;EXCHANGECO&#8221;)<\/p>\n<p>AND:<\/p>\n<p>       ABATIS SYSTEMS CORPORATION, a corporation existing under the<br \/>\n       federal laws of Canada (hereinafter referred to as &#8220;ABATIS&#8221;)<\/p>\n<p>     THIS AGREEMENT WITNESSETH THAT in consideration of the respective covenants<br \/>\nand agreements herein contained and for other good and valuable consideration<br \/>\n(the receipt and sufficiency of which is hereby acknowledged by each party), the<br \/>\nparties hereby covenant and agree as follows:<\/p>\n<p>1.0 INTERPRETATION<\/p>\n<p>1.1 DEFINITIONS. In this Agreement, unless there is something in the subject<br \/>\nmatter or context inconsistent therewith, the following terms shall have the<br \/>\nfollowing meanings respectively:<\/p>\n<p>    &#8220;ABATIS DISCLOSURE SCHEDULE&#8221; means that certain Disclosure Schedule<br \/>\n    dated as of the date hereof and delivered by Abatis to the Redback Parties<br \/>\n    concurrently herewith;<\/p>\n<p>    &#8220;ABATIS MATERIAL INTELLECTUAL PROPERTY&#8221; has the meaning ascribed thereto in<br \/>\n    Section 3.1.39(a);<\/p>\n<p>    &#8220;ABATIS MEETING&#8221; means the special meeting of Abatis Shareholders and<br \/>\n    Abatis Optionholders, including any adjournment thereof, to be called to<br \/>\n    consider the Arrangement;<\/p>\n<p>    &#8220;ABATIS NON-VOTING COMMON SHARES&#8221; means the Class B Non-Voting Common<br \/>\n    Shares in the capital of Abatis;<\/p>\n<p>    &#8220;ABATIS OPTIONHOLDERS&#8221; means the holders of Abatis Options;<\/p>\n<p>    &#8220;ABATIS OPTIONS&#8221; means the options to purchase Abatis Voting Common Shares<br \/>\n    granted under the Abatis Stock Option Plan which are outstanding and<br \/>\n    unexercised on the Effective Date;<\/p>\n<p>    &#8220;ABATIS REGISTERED INTELLECTUAL PROPERTY&#8221; means all Registered Intellectual<br \/>\n    Property owned by, or filed in the name of, Abatis;<\/p>\n<p>    &#8220;ABATIS SHAREHOLDERS&#8221; means the holders of Abatis Shares;<\/p>\n<p>    &#8220;ABATIS SHARES&#8221; means the Abatis Voting Common Shares and Abatis Non-Voting<br \/>\n    Common Shares, collectively;<\/p>\n<p>    &#8220;ABATIS STOCK OPTION PLAN&#8221; means the Key Employee Stock Option Plan of<br \/>\n    Abatis, as amended and in effect on the date hereof;<\/p>\n<p>    &#8220;ABATIS VOTING COMMON SHARES&#8221; means the Class A Voting Common Shares in the<br \/>\n    capital of Abatis;<\/p>\n<p>    &#8220;ACQUISITION PROPOSAL&#8221; means any BONA FIDE proposal with respect to merger,<br \/>\n    amalgamation, take-over bid, private purchase, sale of material assets (or<br \/>\n    any lease, long-term supply agreement, licence, joint venture or other<br \/>\n    arrangement having the same economic effect as a sale), any material sale<br \/>\n    of shares or rights or interests therein or thereto or similar transactions<br \/>\n    involving Abatis, or a proposal to do so, excluding the Arrangement and any<br \/>\n    sale of Products in the ordinary course of business or as disclosed in the<br \/>\n    Abatis Disclosure Schedule;<\/p>\n<p>    &#8220;AFFILIATE&#8217;S LETTER&#8221; means a letter, substantially in the form and content<br \/>\n    of Exhibit A hereto;<\/p>\n<p>                                       2<\/p>\n<p>    &#8220;ANCILLARY AGREEMENTS&#8221; means the Support Agreement, the Exchange Trust<br \/>\n    Agreement, the Registration Rights Agreement and the Escrow Agreement,<br \/>\n    collectively;<\/p>\n<p>    &#8220;APPROPRIATE REGULATORY APPROVALS&#8221; means those sanctions, rulings,<br \/>\n    consents, orders, exemptions, permits and other approvals (including the<br \/>\n    lapse, without objection, of a prescribed time under a statute or<br \/>\n    regulation that states that a transaction may be implemented if a<br \/>\n    prescribed time lapses following the giving of notice without an objection<br \/>\n    being made) of Governmental Entities, regulatory agencies or<br \/>\n    self-regulatory organizations, as set out in Exhibit B hereto;<\/p>\n<p>    &#8220;ARRANGEMENT&#8221; means an arrangement under Section 192 of the CBCA on the<br \/>\n    terms and subject to the conditions set out in the Plan of Arrangement,<br \/>\n    subject to any amendments or variations thereto made in accordance with<br \/>\n    Section 7.1 hereof or Article 6 of the Plan of Arrangement or made at the<br \/>\n    direction of the Court in the Final Order;<\/p>\n<p>    &#8220;ARRANGEMENT RESOLUTION&#8221; means the special resolution of the Abatis<br \/>\n    Shareholders and Abatis Optionholders, to be substantially in the form and<br \/>\n    content of Exhibit C hereto;<\/p>\n<p>    &#8220;ARTICLES OF ARRANGEMENT&#8221; means the articles of arrangement of Abatis in<br \/>\n    respect of the Arrangement that are required by the CBCA to be sent to the<br \/>\n    Director after the Final Order is made;<\/p>\n<p>    &#8220;ASSUMPTION AGREEMENT&#8221; means the Assumption, Amending and Confirmation<br \/>\n    Agreement to be made between Redback and Abatis, substantially in the form<br \/>\n    and content of Exhibit I hereto, with such changes thereto as the parties<br \/>\n    hereto, acting reasonably, may approve;<\/p>\n<p>    &#8220;BUSINESS&#8221; means the business of Abatis as it is currently conducted,<br \/>\n    including, the design, development, manufacture, use, import and sale of<br \/>\n    the Products, the co-ordination of consumable internet protocol service<br \/>\n    (virtual private networks and product suppliers whose offerings are<br \/>\n    compatible with the Products), the licensing of technology underlying the<br \/>\n    Products to develop and enhance other markets for the Product technology,<br \/>\n    and the performance of services related to these activities;<\/p>\n<p>                                       3<\/p>\n<p>    &#8220;BUSINESS DAY&#8221; means any day on which commercial banks are open for<br \/>\n    business in San Francisco, California and Vancouver, British Columbia other<br \/>\n    than a Saturday, a Sunday or a day observed as a holiday in San Francisco,<br \/>\n    California under the laws of the State of California or the federal laws of<br \/>\n    the United States of America or in Vancouver, British Columbia under the<br \/>\n    laws of the Province of British Columbia or the federal laws of Canada;<\/p>\n<p>    &#8220;CBCA&#8221; means the CANADA BUSINESS CORPORATIONS ACT, R.S.C. 1985, c. C-44, as<br \/>\n    it may be amended from time to time prior to the Effective Date;<\/p>\n<p>    &#8220;CIRCULAR&#8221; means the notice of the Abatis Meeting and accompanying<br \/>\n    management proxy circular, including all schedules, appendices and exhibits<br \/>\n    thereto, to be sent to the Abatis Shareholders and the Abatis Optionholders<br \/>\n    in connection with the Abatis Meeting;<\/p>\n<p>    &#8220;COMPANY ACT&#8221; means the COMPANY ACT, R.S.B.C. 1996, c. 62;<\/p>\n<p>    &#8220;CONFIDENTIALITY AGREEMENT&#8221; means the non-disclosure agreement dated as of<br \/>\n    May 30, 2000 between Redback and Abatis;<\/p>\n<p>    &#8220;CORE PRODUCTS AND TECHNOLOGY&#8221; has the meaning ascribed thereto in Section<br \/>\n    3.1.39(a)(i);<\/p>\n<p>    &#8220;COURT&#8221; means the Supreme Court of British Columbia;<\/p>\n<p>    &#8220;DEBT INSTRUMENT&#8221; means any bond, debenture, mortgage, promissory note or<br \/>\n    other instrument evidencing indebtedness for borrowed money;<\/p>\n<p>    &#8220;DIRECTOR&#8221; means the Director appointed pursuant to Section 260 of the<br \/>\n    CBCA;<\/p>\n<p>    &#8220;DISSENT RIGHTS&#8221; means the rights of dissent in respect of the Arrangement<br \/>\n    described in Section 3.1 of the Plan of Arrangement;<\/p>\n<p>    &#8220;DROP DEAD DATE&#8221; means December 31, 2000, or such later date as may be<br \/>\n    agreed upon by the parties hereto;<\/p>\n<p>    &#8220;EFFECTIVE DATE&#8221; means the date shown on the certificate of arrangement to<br \/>\n    be issued by the Director giving effect to the Arrangement;<\/p>\n<p>                                       4<\/p>\n<p>    &#8220;EFFECTIVE TIME&#8221; has the meaning ascribed thereto in the Plan of<br \/>\n    Arrangement;<\/p>\n<p>    &#8220;EMPLOYEE BENEFITS&#8221; means:<\/p>\n<p>    (a) salaries, wages, bonuses, vacation entitlements, commissions,<br \/>\n        fees, stock option plans, stock purchase plans, incentive plans,<br \/>\n        deferred compensation plans, profit-sharing plans and other similar<br \/>\n        benefits, plans or arrangements;<\/p>\n<p>    (b) insurance, health, welfare, drug, disability, pension, retirement,<br \/>\n        travel, hospitalization, medical, dental, legal counseling, eye care and<br \/>\n        other similar benefits, plans or arrangements; and<\/p>\n<p>    (c) agreements or arrangements with any labour union or employee<br \/>\n        association, written or oral employment agreements or arrangements and<br \/>\n        agreements or arrangements for the retention of the services of<br \/>\n        independent contractors, consultants or advisors;<\/p>\n<p>    &#8220;ENCUMBRANCE&#8221; means any mortgage, charge, easement, encroachment, lien,<br \/>\n    adverse claim, assignment by way of security, security interest, servitude,<br \/>\n    pledge, hypothecation, conditional sale agreement, security agreement, title<br \/>\n    retention agreement, financing statement, option, right of pre-emption,<br \/>\n    privilege, obligation to assign, licence, sublicence (other than<br \/>\n    non-exclusive licences and sublicences of Intellectual Property (excluding<br \/>\n    source code) made in the ordinary course of business) or other encumbrance;<\/p>\n<p>    &#8220;ESCROW AGENT&#8221; means Montreal Trust Company of Canada, or such other Person<br \/>\n    as the Parties hereto may approve, in its capacity as escrow agent under<br \/>\n    the Escrow Agreement, and includes any successor escrow agent appointed<br \/>\n    thereunder;<\/p>\n<p>    &#8220;ESCROW AGREEMENT&#8221; means an agreement to be made among Redback, Exchangeco,<br \/>\n    the Shareholders&#8217; Agent and the Escrow Agent, as agent for and on behalf of<br \/>\n    each of the Abatis Shareholders, which shall be substantially in the form<br \/>\n    and content of Appendix 2 to the Plan of Arrangement, with such changes<br \/>\n    thereto as the parties hereto, acting reasonably, may approve;<\/p>\n<p>                                       5<\/p>\n<p>    &#8220;ESCROW FUND&#8221; has the meaning ascribed thereto in Section 4.1;<\/p>\n<p>    &#8220;ESCROW SECURITIES&#8221; has the meaning ascribed thereto in the Plan of<br \/>\n    Arrangement;<\/p>\n<p>    &#8220;EXCHANGE ACT&#8221; means the United States SECURITIES EXCHANGE ACT OF 1934;<\/p>\n<p>    &#8220;EXCHANGE RATIO&#8221; has the meaning ascribed thereto in the Plan of<br \/>\n    Arrangement;<\/p>\n<p>    &#8220;EXCHANGE TRUST AGREEMENT&#8221; means an agreement to be made among Redback,<br \/>\n    Exchangeco and the Trustee, which shall be substantially in the form and<br \/>\n    content of Exhibit D hereto, with such changes thereto as the parties<br \/>\n    hereto, acting reasonably, may approve;<\/p>\n<p>    &#8220;EXCHANGEABLE SHARES&#8221; means non-voting exchangeable shares in the capital<br \/>\n    of Exchangeco, having the rights, privileges, restrictions and conditions<br \/>\n    set out in the Share Provisions;<\/p>\n<p>    &#8220;EXPIRATION DATE&#8221; means that date which is 180 days after the Effective<br \/>\n    Date;<\/p>\n<p>    &#8220;FINAL ORDER&#8221; means the final order of the Court granted pursuant to<br \/>\n    Section 192 of the CBCA approving the Arrangement as such order may be<br \/>\n    amended at any time prior to the Effective Date or, if appealed, then,<br \/>\n    unless such appeal is abandoned or denied, as affirmed;<\/p>\n<p>    &#8220;FINANCIAL STATEMENTS&#8221; means the audited annual financial statements of<br \/>\n    Abatis as at November 30, 1999, consisting of the balance sheet of Abatis<br \/>\n    as at November 30, 1999 and the accompanying statement of operations and<br \/>\n    deficit and statement of cash flows for the 12-month period ended November<br \/>\n    30, 1999, including the notes thereto and the auditor&#8217;s report thereon;<\/p>\n<p>    &#8220;FINANCIAL YEAR END&#8221; means November 30, 1999;<\/p>\n<p>    &#8220;FORM S-3&#8221; has the meaning ascribed thereto in the Registration Rights<br \/>\n    Agreement;<\/p>\n<p>    &#8220;FORM S-8&#8221; has the meaning ascribed thereto in Section 2.6(b);<\/p>\n<p>                                       6<\/p>\n<p>    &#8220;GOVERNMENTAL ENTITY&#8221; means any<\/p>\n<p>    (a)  multinational, federal, provincial, state, regional, municipal, local<br \/>\n         or other government, governmental or public department, central bank or<br \/>\n         Tribunal;<\/p>\n<p>    (b)  any subdivision, agent, commission, board, or authority of any of the<br \/>\n         foregoing; or<\/p>\n<p>    (c)  any quasi-governmental or private body exercising any regulatory,<br \/>\n         expropriation or taxing authority under or for the account of any of<br \/>\n         the foregoing;<\/p>\n<p>    &#8220;GUARANTEE&#8221; means any agreement, contract or commitment providing for the<br \/>\n    guarantee, indemnification, assumption or endorsement or any like<br \/>\n    commitment with respect to the obligations, liabilities (contingent or<br \/>\n    otherwise) or indebtedness of any Person;<\/p>\n<p>    &#8220;INFORMATION&#8221; has the meaning ascribed thereto in Section 5.10(b);<\/p>\n<p>    &#8220;INTELLECTUAL PROPERTY&#8221; means any or all of the following and all rights<br \/>\n    in, arising out of, or associated with:<\/p>\n<p>    (a)  all Registered Intellectual Property;<\/p>\n<p>    (b)  all trade secrets including, without limitation, trade secrets that are<br \/>\n         inventions (whether patentable or not) and invention disclosures and<br \/>\n         all proprietary and confidential information including, without<br \/>\n         limitation, know-how, technical data, techniques, manuals,<br \/>\n         documentation, reports, records, formulae, processes, descriptions,<br \/>\n         schematics, specifications, designs, industrial models, design<br \/>\n         criteria, architectures, schematics for hardware products, system<br \/>\n         architecture drawings, product test scripts, methodologies, algorithms,<br \/>\n         sketches, photographs, plans, drawings, samples, reports, studies,<br \/>\n         findings, inventions, prototypes and ideas, whether patentable or not,<br \/>\n         whether trade secrets or not and whether in written, graphic or oral<br \/>\n         form;<\/p>\n<p>    (c)  all business data and information including, without limitation,<br \/>\n         customer lists, business models, logos, product documentation and<br \/>\n         web-site materials and marketing collaterals;<\/p>\n<p>                                       7<\/p>\n<p>    (d) all rights in the nature of copyright howsoever arising, worldwide<br \/>\n        (whether domestic or foreign) that subsist in and to any original works<br \/>\n        (including, without limitation, Software) and which have not been<br \/>\n        registered under the applicable copyright legislation;<\/p>\n<p>    (e) all trade names, brand names, logos, unregistered trade-marks;<\/p>\n<p>    (f) all data, databases and data collections in whatever form or media; and<\/p>\n<p>    (g) all physical manifestations of any of the foregoing together with all<br \/>\n         documentation applicable thereto;<\/p>\n<p>    &#8220;INTELLECTUAL PROPERTY RIGHTS&#8221; means any and all proprietary, possessory,<br \/>\n    use and ownership rights, titles and interest (whether domestic or foreign)<br \/>\n    in and to all intellectual property including issued and unissued patents,<br \/>\n    registered and unregistered copyrights, registered and unregistered<br \/>\n    industrial designs, registered and unregistered trade-marks or service<br \/>\n    marks, confidential information, trade-secrets, mask works, semi-conductor<br \/>\n    chip designs and integrated circuit topography and all other intellectual<br \/>\n    and industrial property rights whatsoever and worldwide (whether registered<br \/>\n    Xor unregistered);<\/p>\n<p>    &#8220;INTERESTED PERSON&#8221; means any present or former officer, director,<br \/>\n    shareholder, employee, consultant or advisor, excluding attorneys,<br \/>\n    accountants and other third party professional advisors of Abatis in<br \/>\n    connection with this Agreement and the transactions contemplated herein, of<br \/>\n    or to Abatis or any Person with which Abatis or any of the foregoing does<br \/>\n    not deal at arm&#8217;s length within the meaning of the INCOME TAX ACT (Canada)<br \/>\n    (including a spouse, parent, child or sibling of any such Person);<\/p>\n<p>    &#8220;INTERIM FINANCIAL STATEMENTS&#8221; means the unaudited financial statements of<br \/>\n    Abatis as at May 31, 2000, consisting of the balance sheet of Abatis as at<br \/>\n    May 31, 2000 and the accompanying statement of operations and deficit and<br \/>\n    statement of cash flows for the period from the Financial Year End to and<br \/>\n    including May 31, 2000;<\/p>\n<p>                                       8<\/p>\n<p>    &#8220;INTERIM ORDER&#8221; means the interim order of the Court, as the same may be<br \/>\n    amended, granted pursuant to Section 192 of the CBCA in respect of the<br \/>\n    Arrangement, as contemplated by Section 2.3;<\/p>\n<p>    &#8220;INVESTMENT BUSINESS&#8221; has the meaning ascribed thereto in Section 3.2.12;<\/p>\n<p>    &#8220;KEY EMPLOYEES&#8221; means those Persons designated as &#8220;Key Employees&#8221; in the<br \/>\n    Abatis Disclosure Schedule;<\/p>\n<p>    &#8220;KEY EMPLOYEE EMPLOYMENT AGREEMENTS&#8221; means the employment agreements<br \/>\n    between Abatis and each of the Key Employees, including non-competition<br \/>\n    covenants, copies of which are attached to the Abatis Disclosure Schedule;<\/p>\n<p>    &#8220;LAWS&#8221; means all statutes, regulations, statutory rules, principles of law,<br \/>\n    orders, published policies and guidelines, and terms and conditions of any<br \/>\n    grant of approval, permission, authority or licence of any court,<br \/>\n    Governmental Entity, statutory body or self-regulatory authority, and the<br \/>\n    term &#8220;applicable&#8221; with respect to such Laws and in the context that refers<br \/>\n    to one or more Persons means that such Laws apply to such Person or Persons<br \/>\n    or its or their business, undertaking, property or securities and emanate<br \/>\n    from a Person having jurisdiction over the Person or Persons or its or<br \/>\n    their business, undertaking, property or securities;<\/p>\n<p>    &#8220;LEASED PROPERTY&#8221; means all the right, title and interest of Abatis in and<br \/>\n    to the subject matter (whether realty or personalty) of the Leases;<\/p>\n<p>    &#8220;LEASES&#8221; means the real or personal property leases or subleases, or other<br \/>\n    rights of occupancy relating to real property, which Abatis is a party to<br \/>\n    or bound by or subject to, including those set forth and described in the<br \/>\n    Abatis Disclosure Schedule;<\/p>\n<p>    &#8220;LETTER OF TRANSMITTAL AND ELECTION FORM&#8221; means the letter of transmittal<br \/>\n    and election form for use by holders of Abatis Shares, in the form which<br \/>\n    will accompany the Circular;<\/p>\n<p>    &#8220;LICENCES&#8221; has the meaning ascribed thereto in Section 3.1.32;<\/p>\n<p>    &#8220;MATERIAL ADVERSE CHANGE&#8221;, when used in connection with Redback or Abatis,<br \/>\n    means any change, effect, event or occurrence with respect to its condition<\/p>\n<p>                                       9<\/p>\n<p>    (financial or otherwise), properties, assets, ownership, capital,<br \/>\n    liabilities, obligations (whether absolute, accrued, conditional or<br \/>\n    otherwise), businesses, operations or results of operations or those of its<br \/>\n    subsidiaries, if any, that is, or would reasonably be expected to be,<br \/>\n    material and adverse to the business, properties, assets, operations,<br \/>\n    condition (financial or otherwise) or prospects of such party and its<br \/>\n    subsidiaries taken as a whole, other than any change, effect, event or<br \/>\n    occurrence:<\/p>\n<p>    (i)  relating to the Canadian or United States&#8217; economy or securities<br \/>\n         markets in general; or<\/p>\n<p>    (ii) generally affecting the industry in which such party operates;<\/p>\n<p>    &#8220;MATERIAL ADVERSE EFFECT&#8221;, when used in connection with Redback or Abatis,<br \/>\n    means any matter or action that has an effect that is, or would reasonably<br \/>\n    be expected to be, material and adverse to the business, properties,<br \/>\n    assets, operations, condition (financial or otherwise) or prospects of such<br \/>\n    party and its subsidiaries taken as a whole, and &#8220;MATERIALLY ADVERSELY<br \/>\n    AFFECTED&#8221; shall have a corresponding meaning;<\/p>\n<p>    &#8220;MATERIAL AGREEMENTS&#8221; means the agreements, indentures, contracts, leases,<br \/>\n    licences, options, instruments and other commitments set forth in the<br \/>\n    Abatis Disclosure Schedule;<\/p>\n<p>    &#8220;NEWCO&#8221; means 610380 B.C. Inc., a company existing under the laws of the<br \/>\n    Province of British Columbia, and being a wholly-owned subsidiary of<br \/>\n    Redback;<\/p>\n<p>    &#8220;NNM&#8221; means the distinct tier of The Nasdaq Stock Market referred to as the<br \/>\n    Nasdaq National Market;<\/p>\n<p>    &#8220;NON-CORE INTELLECTUAL PROPERTY&#8221; means any and all Intellectual Property<br \/>\n    (owned or licenced by Abatis) that is necessary or incidental to or used in<br \/>\n    or useful to the Business or created or acquired by or as part of the<br \/>\n    Business (whether in existence or in development or planned) other than the<br \/>\n    Abatis Material Intellectual Property;<\/p>\n<p>    &#8220;PERSON&#8221; includes any individual, firm, partnership, joint venture, venture<br \/>\n    capital fund, association, trust, trustee, executor, administrator, legal<br \/>\n    personal<\/p>\n<p>                                       10<\/p>\n<p>    representative, estate, group, body corporate, corporation, company,<br \/>\n    unincorporated association or organization, Governmental Entity, syndicate<br \/>\n    or other entity, whether or not having legal status;<\/p>\n<p>    &#8220;PLAN OF ARRANGEMENT&#8221; means the plan of arrangement substantially in the<br \/>\n    form and content of Exhibit E hereto and any amendments or variations<br \/>\n    thereto made in accordance with Section 7.1 hereof or Article 6 of the Plan<br \/>\n    of Arrangement or made at the direction of the Court in the Final Order;<\/p>\n<p>    &#8220;PRE-EFFECTIVE DATE PERIOD&#8221; means the period from and including the date<br \/>\n    hereof to and including the earlier of the Effective Time and the date of<br \/>\n    termination of this Agreement pursuant to Section 7.0;<\/p>\n<p>    &#8220;PRINCIPAL SHAREHOLDERS&#8221; means those Persons designated as &#8220;Principal<br \/>\n    Shareholders&#8221; in the Abatis Disclosure Schedule;<\/p>\n<p>    &#8220;PRINCIPAL SHAREHOLDER VOTING AGREEMENTS&#8221; means the agreements between<br \/>\n    Redback and each of the Principal Shareholders, each dated as of the date<br \/>\n    hereof, substantially in the form and content of Appendix F hereto, with<br \/>\n    such changes thereto as the parties hereto have approved;<\/p>\n<p>    &#8220;PRODUCTS&#8221; means all products that are owned, created, designed, developed,<br \/>\n    manufactured, marketed, licensed or sold (whether in existence or in<br \/>\n    development or planned) by or on behalf of Abatis, including hardware,<br \/>\n    software, firmware, interfaces and every type of device all of which are<br \/>\n    set forth in the Abatis Disclosure Schedule, including the Core Products<br \/>\n    and Technology;<\/p>\n<p>    &#8220;REDBACK COMMON SHARES&#8221; means the shares of common stock, having a par<br \/>\n    value of $0.0001 each, in the capital of Redback;<\/p>\n<p>    &#8220;REDBACK PARTIES&#8221; means Redback and Exchangeco, collectively;<\/p>\n<p>    &#8220;REGISTERED INTELLECTUAL PROPERTY&#8221; means all Canadian, United States and<br \/>\n    other foreign: (i) patents, patent applications (including provisional<br \/>\n    applications) all reissues, divisions, renewals, extensions, continuations<br \/>\n    and continuations in part thereof; (ii) registered trade-marks and<br \/>\n    servicemarks, applications to register trade-marks and servicemarks,<br \/>\n    intent-to-use applications, other registrations or applications to<br \/>\n    trade-marks or servicemarks; (iii) registered copyrights and<\/p>\n<p>                                       11<\/p>\n<p>    applications for copyright registration; (iv) mask work registrations and<br \/>\n    applications to register mask works; (v) registered industrial designs and<br \/>\n    all applications therefor; and (vi) domain names;<\/p>\n<p>    &#8220;REGISTRATION RIGHTS AGREEMENT&#8221; has the meaning ascribed thereto in Section<br \/>\n    2.6(d);<\/p>\n<p>    &#8220;REPLACEMENT OPTION&#8221; has the meaning ascribed thereto in Section 2.4(c);<\/p>\n<p>    &#8220;REPRESENTATIVES&#8221; has the meaning ascribed thereto in Section 5.10(a);<\/p>\n<p>    &#8220;SEC&#8221; means the United States Securities and Exchange Commission;<\/p>\n<p>    &#8220;SEC DOCUMENTS&#8221; means, with respect to any Person, each report, schedule,<br \/>\n    form, statement or other document filed with the SEC by such Person<br \/>\n    pursuant to Section 13(a) or 15(d) of the Exchange Act and all final and<br \/>\n    effective registration statements and prospectuses filed by such Person<br \/>\n    with the SEC pursuant to the Securities Act;<\/p>\n<p>    &#8220;SECURITIES ACT&#8221; means the United States SECURITIES ACT OF 1933;<\/p>\n<p>    &#8220;SHAREHOLDERS&#8217; AGENT&#8221; means Andrew Waitman, or such other Person as the<br \/>\n    parties hereto may approve, in his capacity as shareholders&#8217; agent under<br \/>\n    the Escrow Agreement or the Registration Rights Agreement, as the case may<br \/>\n    be, and includes any successor shareholders&#8217; agent appointed under either<br \/>\n    such agreement;<\/p>\n<p>    &#8220;SHAREHOLDERS&#8217; AGREEMENT&#8221; means the shareholders&#8217; agreement among Newbridge<br \/>\n    Networks Corporation, 3494365 Canada, Inc., Adam Lorant, Paul Terry, Jim<br \/>\n    Arseneault and Abatis made effective as of September 4, 1998, as amended<br \/>\n    effective as of November 23, 1999 and April 3, 2000;<\/p>\n<p>    &#8220;SHARE PROVISIONS&#8221; means the rights, privileges, restrictions and<br \/>\n    conditions to be attached to the Exchangeable Shares, which shall be<br \/>\n    substantially in the form and content of Appendix 1 to the Plan of<br \/>\n    Arrangement, with such changes thereto as the parties hereto, acting<br \/>\n    Xreasonably, may approve;<\/p>\n<p>                                       12<\/p>\n<p>    &#8220;SOFTWARE&#8221; means all computer software including, without limitation,<br \/>\n    application software, systems software, software design tools, interfaces,<br \/>\n    object libraries, and microcode in object code or source code forms and<br \/>\n    firmware, embedded in or used to develop products, and any related<br \/>\n    documentation including, without limitation, technical documentation,<br \/>\n    system designs and specifications, flow charts, record and file layouts,<br \/>\n    memoranda, correspondence and other such documentation containing or<br \/>\n    relating to the design, structure or coding or testing of, or algorithms or<br \/>\n    routines used in, or errors discovered in or corrected in such software,<br \/>\n    user guides and manuals related thereto and any other documentations or<br \/>\n    material (in whatever form, whether human or machine readable, and in<br \/>\n    whatever media) relating to such software;<\/p>\n<p>    &#8220;SOURCE MATERIALS&#8221; has the meaning ascribed thereto in Section 3.1.22(n);<\/p>\n<p>    &#8220;SUBSIDIARY&#8221; means, with respect to a specified body corporate, any body<br \/>\n    corporate of which more than 50% of the outstanding shares ordinarily<br \/>\n    entitled to elect a majority of the board of directors thereof (whether or<br \/>\n    not shares of any other class or classes shall or might be entitled to vote<br \/>\n    upon the happening of any event or contingency) are at the time owned<br \/>\n    directly or indirectly by such specified body corporate and shall include<br \/>\n    any body corporate, partnership, joint venture or other entity over which<br \/>\n    it exercises direction or control or which is in a like relation to a<br \/>\n    subsidiary;<\/p>\n<p>    &#8220;SUPERIOR PROPOSAL&#8221; means any BONA FIDE proposal by a third party directly<br \/>\n    or indirectly, to acquire all or substantially all of Abatis&#8217;s total assets<br \/>\n    (which, for greater certainty, shall not include a sale of Products in the<br \/>\n    ordinary course of business or as disclosed in the Abatis Disclosure<br \/>\n    Schedule) or more than 50% of the outstanding Abatis Shares, whether by way<br \/>\n    of merger, amalgamation, arrangement, take-over bid, sale of assets or<br \/>\n    otherwise, and that in the good faith determination of the board of<br \/>\n    directors of Abatis, after consultation with financial advisors and outside<br \/>\n    legal counsel:<\/p>\n<p>    (a)  is reasonably capable of being completed, taking into account all<br \/>\n         legal, financial, regulatory and other aspects of such proposal and the<br \/>\n         Person making such proposal; and<\/p>\n<p>    (b)  would, if consummated in accordance with its terms, result in a<br \/>\n         transaction (i) more favourable to the Abatis Shareholders and the<br \/>\n         Abatis<\/p>\n<p>                                       13<\/p>\n<p>         Optionholders than the transaction contemplated by this Agreement and<br \/>\n         (ii) having a value per Abatis Share greater than the per share value<br \/>\n         attributable thereto under the transaction contemplated by this<br \/>\n         Agreement;<\/p>\n<p>    &#8220;SUPPORT AGREEMENT&#8221; means an agreement to be made among Redback, Newco and<br \/>\n    Exchangeco, which shall be substantially in the form and content of Exhibit<br \/>\n    G hereto, with such changes thereto as the parties hereto, acting<br \/>\n    reasonably, may approve;<\/p>\n<p>    &#8220;TAX&#8221; and &#8220;TAXES&#8221; means, with respect to any entity, all income taxes<br \/>\n    (including any tax on or based upon net income, gross income, income as<br \/>\n    specially defined, earnings, profits or selected items of income, earnings<br \/>\n    or profits) and all capital taxes, gross receipts taxes, environmental<br \/>\n    taxes, sales taxes, use taxes, AD VALOREM taxes, value added taxes,<br \/>\n    transfer taxes, franchise taxes, licence taxes, withholding taxes, payroll<br \/>\n    taxes, employment taxes, Canada or Quebec Pension Plan premiums, excise,<br \/>\n    severance, social security premiums, workers&#8217; compensation premiums,<br \/>\n    employment insurance or compensation premiums, stamp taxes, occupation<br \/>\n    taxes, premium taxes, property taxes, windfall profits taxes, alternative<br \/>\n    or add-on minimum taxes, goods and services tax, customs duties or other<br \/>\n    taxes, fees, imports, assessments or charges of any kind whatsoever,<br \/>\n    together with any interest and any penalties or additional amounts imposed<br \/>\n    by any taxing authority (domestic or foreign) on such entity, and any<br \/>\n    interest, penalties, additional taxes and additions to tax imposed with<br \/>\n    respect to the foregoing;<\/p>\n<p>    &#8220;TAX RETURNS&#8221; means all returns, declarations, reports, information returns<br \/>\n    and statements required to be filed with any taxing authority relating to<br \/>\n    Taxes;<\/p>\n<p>    &#8220;THIRD PARTY EXPENSES&#8221; means all legal, accounting, financial advisory,<br \/>\n    investment banking, consulting and all other fees and expenses of third<br \/>\n    parties incurred by a party in connection with the negotiation and<br \/>\n    effectuation of the terms and conditions of this Agreement and the<br \/>\n    transactions contemplated hereby;<\/p>\n<p>    &#8220;THIRD PARTY SOFTWARE&#8221; means any software (including &#8220;Software&#8221;) that is<br \/>\n    not owned by Abatis but is licenced to Abatis by another Person;<\/p>\n<p>    &#8220;TRIBUNAL&#8221; means:<\/p>\n<p>    (a) any court (including a court of equity);<\/p>\n<p>                                       14<\/p>\n<p>    (b) any federal, provincial, state, county, municipal or other government<br \/>\n        or governmental department, ministry, commission, board, bureau, agency<br \/>\n        or instrumentality;<\/p>\n<p>    (c) any securities commission, stock exchange or other regulatory or<br \/>\n        self-regulatory body;<\/p>\n<p>    (d) any board of trade, chamber of commerce or other business or<br \/>\n        professional organization or association;<\/p>\n<p>    (e) any arbitrator or arbitration tribunal; and<\/p>\n<p>    (f) any other tribunal;<\/p>\n<p>    &#8220;TRUSTEE&#8221; means Montreal Trust Company of Canada, or such other Person as<br \/>\n    the parties hereto may approve, in its capacity as trustee under the<br \/>\n    Exchange Trust Agreement, and includes any successor trustee appointed<br \/>\n    thereunder; and<\/p>\n<p>    &#8220;UNITED STATES DOLLAR EQUIVALENT&#8221; means, in respect of an amount expressed<br \/>\n    in a currency other than United States dollars (the &#8220;FOREIGN CURRENCY<br \/>\n    AMOUNT&#8221;) at any date, the product obtained by multiplying (a) the Foreign<br \/>\n    Currency Amount by (b) the noon spot exchange rate on that date for that<br \/>\n    foreign currency expressed in United States dollars as reported by the<br \/>\n    Federal Reserve Bank of New York or, in the event that spot exchange rate<br \/>\n    is not available, any publicly disclosed and widely quoted exchange rate as<br \/>\n    quoted by an arm&#8217;s length third party on that date for the foreign currency<br \/>\n    expressed in United States dollars as may be deemed by the board of<br \/>\n    directors of Redback, acting reasonably, to be appropriate for that<br \/>\n    purpose.<\/p>\n<p>1.2 INTERPRETATION NOT AFFECTED BY HEADINGS, ETC. The division of this Agreement<br \/>\ninto sections and other portions and the insertion of headings are for<br \/>\nconvenience of reference only and shall not affect the construction or<br \/>\ninterpretation hereof. Unless otherwise indicated, all references in this<br \/>\nAgreement to a &#8220;section&#8221; followed by a number and\/or a letter refer to the<br \/>\nspecified section of this Agreement, and all references in this Agreement to an<br \/>\nExhibit followed by a letter refer to the specified Exhibit to this Agreement.<br \/>\nUnless otherwise indicated, the terms &#8220;this Agreement&#8221;, &#8220;hereof&#8221;, &#8220;herein&#8221;,<br \/>\n&#8220;hereunder&#8221; and &#8220;hereby&#8221; and similar expressions refer to this Agreement<br \/>\n(including the Exhibits hereto), as amended or supplemented from time to time<\/p>\n<p>                                       15<\/p>\n<p>pursuant to the applicable provisions hereof, and not to any particular section<br \/>\nor other portion hereof.<\/p>\n<p>1.3      CURRENCY. Unless otherwise indicated, all sums of money referred to in<br \/>\nthis Agreement are expressed in lawful money of the United States of America.<\/p>\n<p>1.4      NUMBER, ETC. Unless the context otherwise requires, words importing the<br \/>\nsingular shall include the plural and vice versa and words importing any gender<br \/>\nshall include all genders.<\/p>\n<p>1.5      DATE FOR ANY ACTION. In the event that any date on which any action is<br \/>\nrequired to be taken hereunder by any of the parties hereto is not a Business<br \/>\nDay, such action shall be required to be taken on the next succeeding day which<br \/>\nis a Business Day.<\/p>\n<p>1.6      ENTIRE AGREEMENT. This Agreement and the agreements and other documents<br \/>\nreferred to herein constitute the entire agreement between the parties with<br \/>\nrespect to the Arrangement and other transactions contemplated hereby and<br \/>\nsupersede all other prior agreements, understandings, negotiations and<br \/>\ndiscussions, whether oral or written, between the parties with respect thereto,<br \/>\nother than the Confidentiality Agreement.<\/p>\n<p>1.7      ACCOUNTING MATTERS. Unless otherwise indicated, all accounting terms<br \/>\nused in this Agreement in respect of Abatis shall have the meanings attributable<br \/>\nthereto under Canadian generally accepted accounting principles and all<br \/>\ndeterminations of an accounting nature in respect of Abatis required to be made<br \/>\nshall be made in a manner consistent with Canadian generally accepted accounting<br \/>\nprinciples and past practice. Unless otherwise indicated, all accounting terms<br \/>\nused in this Agreement in respect of Redback shall have the meanings<br \/>\nattributable thereto under United States generally accepted accounting<br \/>\nprinciples and all determinations of an accounting nature required to be made in<br \/>\nrespect of Redback shall be made in a manner consistent with United States<br \/>\ngenerally accepted accounting principles and past practice.<\/p>\n<p>1.8      CONSTRUCTION. In this Agreement, unless otherwise indicated:<\/p>\n<p>    (a)  the words &#8220;include&#8221;, &#8220;including&#8221; or &#8220;in particular&#8221;, when following any<br \/>\n         general term or statement, shall not be construed as limiting the<br \/>\n         general term or statement to the specific items or matters<br \/>\n         set forth or to similar items or matters, but rather as permitting the<br \/>\n         general term or statement to refer to all other items or matters <\/p>\n<p>                                       16<\/p>\n<p>         that could reasonably fall within the broadest possible scope of the<br \/>\n         general term or statement;<\/p>\n<p>    (b)  a reference to a statute means that statute, as amended and in effect<br \/>\n         as of the date of this Agreement, and includes each and every<br \/>\n         regulation and rule made thereunder and in effect as of the date<br \/>\n         hereof;<\/p>\n<p>    (c)  a reference to an &#8220;approval&#8221;, &#8220;authorization&#8221;, &#8220;consent&#8221;,<br \/>\n         &#8220;designation&#8221;, &#8220;notice&#8221; or &#8220;agreement&#8221; means an approval,<br \/>\n         authorization, consent, designation, notice or agreement, as the<br \/>\n         case may be, in writing, signed by an authorized representative of<br \/>\n         the party or parties thereto;<\/p>\n<p>    (d)  the phrase &#8220;ordinary course of business&#8221;, or any variation thereof,<br \/>\n         of any Person refers to the business of such Person, carried on in<br \/>\n         the regular and ordinary course including commercially reasonable<br \/>\n         and businesslike actions that are in the regular and ordinary<br \/>\n         course of business for a company operating in the industry in which<br \/>\n         such business is conducted notwithstanding that similar actions may<br \/>\n         not have been undertaken before by such Person and may be on a<br \/>\n         scale or in a quantum greater or different than the scale or<br \/>\n         quantum of similar actions undertaken by such Person previously;<\/p>\n<p>    (e)  where a word, term or phrase is defined, its derivatives or other<br \/>\n         grammatical forms have a corresponding meaning;<\/p>\n<p>    (f)  time is of the essence; and<\/p>\n<p>    (g)  references to a &#8220;party&#8221; or &#8220;parties&#8221; are references to a party or<br \/>\n         parties to this Agreement.<\/p>\n<p>1.9      KNOWLEDGE. In this Agreement, the phrase &#8220;to the knowledge of&#8221; any<br \/>\nPerson, &#8220;to the best knowledge of&#8221; any Person, &#8220;known to&#8221; any Person, &#8220;of which<br \/>\nit is aware&#8221; or any similar phrase means, unless otherwise indicated, (i) with<br \/>\nrespect to any Person who is an individual, the actual knowledge of such Person,<br \/>\n(ii) with respect to Abatis, the actual knowledge of John Seminerio, Adam<br \/>\nLorant, Paul Terry or Angela Tzanadamis, in each case after reasonable enquiry,<br \/>\nand to the extent that such reasonable enquiry was not conducted, includes the<br \/>\nknowledge that a reasonable Person would have had if such reasonable enquiry had<br \/>\nbeen conducted, and (iii) with respect to Redback and Exchangeco, the actual<br \/>\nknowledge of the President and Chief Executive Officer, Senior Vice-President<br \/>\nand Chief Financial Officer,<\/p>\n<p>                                       17<\/p>\n<p>Vice-President, Business Development or General Counsel and Assistant-Secretary,<br \/>\nin each case after reasonable enquiry, and to the extent that such reasonable<br \/>\nenquiry was not conducted, includes the knowledge that a reasonable Person would<br \/>\nhave had if such reasonable enquiry had been conducted.<\/p>\n<p>1.10     EXHIBITS. The following Exhibits are annexed to this Agreement<br \/>\nand are hereby incorporated by reference into this Agreement and form an<br \/>\nintegral part hereof:<\/p>\n<p>             Exhibit A         &#8212;      Affiliate&#8217;s Letter<br \/>\n             Exhibit B         &#8212;      Appropriate Regulatory Approvals<br \/>\n             Exhibit C         &#8212;      Arrangement Resolution<br \/>\n             Exhibit D         &#8212;      Exchange Trust Agreement<br \/>\n             Exhibit E         &#8212;      Plan of Arrangement<br \/>\n             Exhibit F         &#8212;      Principal Shareholder Voting Agreement<br \/>\n             Exhibit G         &#8212;      Support Agreement<br \/>\n             Exhibit H         &#8212;      Registration Rights Agreement<br \/>\n             Exhibit I         &#8212;      Assumption Agreement<\/p>\n<p>1.11     QUALIFICATIONS TO INTELLECTUAL PROPERTY REPRESENTATIONS. None of<br \/>\nthe representations of Abatis contained in Sections 3.1.39 and 3.1.40 shall be<br \/>\nuntrue solely by reason that the Abatis Material Intellectual Property infringes<br \/>\nthe Intellectual Property Rights of another Person unless such infringement also<br \/>\nconstitutes a breach or violation of the representation contained in Section<br \/>\n3.1.39(q).<\/p>\n<p>2.0      THE ARRANGEMENT<\/p>\n<p>2.1      IMPLEMENTATION STEPS BY ABATIS. Abatis covenants in<br \/>\nfavour of the Redback Parties that Abatis shall:<\/p>\n<p>         (a) as soon as reasonably practicable, apply in a manner acceptable to<br \/>\n             the Redback Parties, acting reasonably, under Section 192 of the<br \/>\n             CBCA for an order approving the Arrangement and for the Interim<br \/>\n             Order, and thereafter proceed with and diligently pursue the<br \/>\n             obtaining of the Interim Order;<\/p>\n<p>         (b) subject to Section 2.5, convene and hold the Abatis<br \/>\n             Meeting as promptly as practicable, but in any event not later<br \/>\n             than November 30, 2000, for the purpose of considering and, if<br \/>\n             deemed advisable, approving the Arrangement and the<br \/>\n             transactions contemplated thereby by way of the Arrangement<br \/>\n             Resolution (and for any other proper purpose as may be set out<br \/>\n             in the notice for such meeting);<\/p>\n<p>                                       18<\/p>\n<p>         (c) subject to obtaining the approval(s) as are required by the<br \/>\n             Interim Order, proceed with and diligently pursue the application<br \/>\n             to the Court for the Final Order; and<\/p>\n<p>         (d) subject to obtaining the Final Order and the satisfaction or waiver<br \/>\n             of the other conditions herein contained in favour of each party,<\/p>\n<p>             (i)  execute and deliver the Escrow Agreement, and<\/p>\n<p>             (ii) send to the Director, for endorsement and filing by the<br \/>\n                  Director, the Articles of Arrangement and such other documents<br \/>\n                  as may be required in connection therewith under the CBCA to<br \/>\n                  give effect to the Arrangement.<\/p>\n<p>2.2      IMPLEMENTATION STEPS BY REDBACK PARTIES. The Redback Parties<br \/>\ncovenant in favour of Abatis that, on or prior to the Effective Date and subject<br \/>\nto the satisfaction or waiver of the other conditions herein contained in favour<br \/>\nof each such party:<\/p>\n<p>         (a) Redback, Newco and Exchangeco shall execute and deliver the Support<br \/>\n             Agreement;<\/p>\n<p>         (b) Redback and Exchangeco shall execute and deliver the Exchange Trust<br \/>\n             Agreement and Escrow Agreement; and<\/p>\n<p>         (c) Redback shall execute and deliver the Registration Rights<br \/>\n             Agreement.<\/p>\n<p>2.3      INTERIM ORDER. The notice of motion for the application referred to<br \/>\nin Section 2.1(a) shall include a request that the Interim Order provide:<\/p>\n<p>         (a) for the class of Persons to whom notice is to be provided in<br \/>\n             respect of the Arrangement and the Abatis Meeting and for the<br \/>\n             manner in which such notice is to be provided;<\/p>\n<p>         (b) that the requisite approval for the Arrangement Resolution shall be<br \/>\n             two-thirds of the votes cast on the Arrangement Resolution by the<br \/>\n             Abatis Shareholders and the Abatis Optionholders present in person<br \/>\n             or by proxy at the Abatis Meeting, voting as a single class, such<br \/>\n             that each holder of Abatis Shares is entitled to one vote for each<br \/>\n             Abatis Share held and each holder of Abatis Options is entitled to<br \/>\n             one vote <\/p>\n<p>                                       19<\/p>\n<p>             for each Abatis Share such holder would have received on a valid<br \/>\n             exercise of such Abatis Options;<\/p>\n<p>         (c) that, in all other respects, the terms, restrictions and conditions<br \/>\n             of the by-laws and articles of Abatis, including quorum<br \/>\n             requirements and all other matters, shall apply in respect of the<br \/>\n             Abatis Meeting; and<\/p>\n<p>         (d) for the grant of the Dissent Rights.<\/p>\n<p>2.4      ARTICLES OF ARRANGEMENT. The Articles of Arrangement shall, with<br \/>\nsuch other matters as are necessary to effect the Arrangement, and all as<br \/>\nsubject to the provisions of the Plan of Arrangement, provide substantially as<br \/>\nfollows:<\/p>\n<p>         (a) each outstanding Abatis Share that is not held by a holder who has<br \/>\n             exercised its Dissent Rights and is ultimately entitled to be paid<br \/>\n             the fair value of its Abatis Shares, will be transferred by the<br \/>\n             holder thereof to Exchangeco in exchange for, at the holder&#8217;s<br \/>\n             election, that number of fully paid and non-assessable Exchangeable<br \/>\n             Shares, or Redback Common Shares to be issued from treasury,<br \/>\n             as the case may be, equal to the Exchange Ratio, and the name of<br \/>\n             each such holder of Abatis Shares will be removed from the<br \/>\n             register of holders of Abatis Shares and added to the register of<br \/>\n             holders of Exchangeable Shares or Redback Common Shares, as the<br \/>\n             case may be, and Exchangeco will be recorded as the registered<br \/>\n             holder of such Abatis Shares so exchanged and will be deemed to<br \/>\n             be the legal and beneficial owner thereof; provided, however,<br \/>\n             that notwithstanding the foregoing a holder of Abatis Shares who<br \/>\n             is not a resident of Canada for the purposes of the INCOME TAX<br \/>\n             ACT (Canada) (it being acknowledged that the parties may, for<br \/>\n             this purpose, rely upon a representation as to residency set out<br \/>\n             in the Letter of Transmittal and Election Form deposited by such<br \/>\n             holder pursuant to the Plan of Arrangement) will not be entitled<br \/>\n             to elect to receive Exchangeable Shares, and any election<br \/>\n             contrary to this restriction made by any holder of Abatis Shares<br \/>\n             shall be and be deemed to be an election to receive Redback<br \/>\n             Common Shares;<\/p>\n<p>         (b) each outstanding Abatis Share in respect of which an election<br \/>\n             under Section 2.4(a) has not been made by the holder<br \/>\n             thereof, or in respect of which an effective election under<br \/>\n             Section 2.4(a) has not been made, other than Abatis Shares held<br \/>\n             by a holder who has exercised its Dissent Rights and is<br \/>\n             ultimately entitled to be paid the fair value of its Abatis<br \/>\n             Shares, will be transferred by the holder thereof, without any<br \/>\n             act or formality on its part, to Exchangeco (or an <\/p>\n<p>                                       20<\/p>\n<p>             affiliate thereof) in exchange for that number of fully paid and<br \/>\n             non-assessable Redback Common Shares equal to the Exchange Ratio,<br \/>\n             and the name of each such holder of Abatis Shares will be removed<br \/>\n             from the register of holders of Abatis Shares and added to the<br \/>\n             register of holders of Redback Common Shares and Exchangeco (or<br \/>\n             its affiliate) will be recorded as the registered holder of such<br \/>\n             Abatis Shares so exchanged and will be deemed to be the legal and<br \/>\n             beneficial owner of such Abatis Shares; and<\/p>\n<p>         (c) each Abatis Option will be exchanged for an option (a &#8220;REPLACEMENT<br \/>\n             OPTION&#8221;) to purchase a number (rounded down to the nearest<br \/>\n             whole number) of Redback Common Shares equal to the product<br \/>\n             obtained when the number of Abatis Voting Common Shares subject<br \/>\n             to such Abatis Option is multiplied by the Exchange Ratio, at an<br \/>\n             exercise price (rounded up to the nearest whole cent) per Redback<br \/>\n             Common Share equal to the quotient obtained when the United<br \/>\n             States Dollar Equivalent (immediately prior to the Effective<br \/>\n             Time) of the exercise price of such Abatis Option is divided by<br \/>\n             the Exchange Ratio. All of the other terms of the Replacement<br \/>\n             Options shall be the same as the terms of the Abatis Options for<br \/>\n             which they are exchanged, except the vesting or exercise<br \/>\n             provisions which shall be as set out in Appendix 3 to the Plan of<br \/>\n             Arrangement, and any document or agreement previously evidencing<br \/>\n             a Abatis Option shall be deemed to be an agreement between<br \/>\n             Redback and the holder thereof evidencing such Replacement<br \/>\n             Option.<\/p>\n<p>2.5      ABATIS PROXY CIRCULAR. As promptly as practicable after the<br \/>\nexecution and delivery of this Agreement, Redback and Abatis shall jointly<br \/>\nprepare the Circular, together with any and all other documents required by the<br \/>\nCBCA or other applicable Laws in connection with the Arrangement. As promptly as<br \/>\npracticable after the completion of the Circular, but in any event not later<br \/>\nthan November 6, 2000, Abatis shall cause the Circular and all other<br \/>\ndocumentation required in connection with the Abatis Meeting to be sent to each<br \/>\nAbatis Shareholder and Abatis Optionholder and to be filed as required by the<br \/>\nInterim Order and applicable Laws.<\/p>\n<p>2.6      SECURITIES COMPLIANCE.<\/p>\n<p>         (a) Redback shall use all reasonable efforts to obtain all<br \/>\n             orders required from the securities authorities of the<br \/>\n             Provinces of Ontario, Alberta and British Columbia to permit<br \/>\n             the issuance of the Exchangeable Shares to be issued pursuant<br \/>\n             to the Arrangement and to permit the issuance and first resale<br \/>\n             through the facilities of a <\/p>\n<p>                                       21<\/p>\n<p>             stock exchange or market in the United States or through the<br \/>\n             NNM (provided that such first resale is made in accordance with<br \/>\n             the rules of the stock exchange or market upon which the trade is<br \/>\n             made or the rules of the NNM in accordance with all laws<br \/>\n             applicable to that stock exchange or market or applicable to the<br \/>\n             NNM) of:<\/p>\n<p>             (i)    the Redback Common Shares to be issued pursuant to the<br \/>\n                    Arrangement;<\/p>\n<p>             (ii)   the Redback Common Shares to be issued upon exchange of the<br \/>\n                    Exchangeable Shares from time to time; and<\/p>\n<p>             (iii)  the Redback Common Shares to be issued from time to time<br \/>\n                    upon the exercise of the Replacement Options,<\/p>\n<p>             in each case without qualification with or approval of or the<br \/>\n             filing of any document, including any prospectus or similar<br \/>\n             document, or the taking of any proceeding with, or the obtaining<br \/>\n             of any further order, ruling or consent from, any Governmental<br \/>\n             Entity or regulatory authority under any Canadian federal,<br \/>\n             provincial or territorial securities or other Laws or pursuant to<br \/>\n             the rules and regulations of any regulatory authority<br \/>\n             administering such Laws, or the fulfilment of any other legal<br \/>\n             requirement in any such jurisdiction (other than, with respect to<br \/>\n             such first resales, any restrictions on transfer by reason of,<br \/>\n             among other things, a holder being a &#8220;control person&#8221; for the<br \/>\n             purposes of Canadian federal, provincial or territorial<br \/>\n             securities Laws).<\/p>\n<p>         (b) As promptly as practicable after the Effective Date,<br \/>\n             but in any event within 30 days thereafter, Redback shall<br \/>\n             file with the SEC a registration statement on Form S-8 (or other<br \/>\n             applicable form) (the &#8220;FORM S-8&#8221;) in order to register under the<br \/>\n             Securities Act those Redback Common Shares to be issued from time<br \/>\n             to time after the Effective Time upon exercise of the Replacement<br \/>\n             Options.<\/p>\n<p>         (c) Redback will apply for a &#8220;No Action Letter&#8221; from the SEC confirming<br \/>\n             that the holding period under Rule 144(d) of the Securities Act for<br \/>\n             the Redback Common Shares to be issued from time to time after the<br \/>\n             Effective Time upon exchange of the Exchangeable Shares will be<br \/>\n             treated as having commenced on the date on which the Exchangeable<br \/>\n             Shares were first acquired by the holders thereof.<\/p>\n<p>         (d) On the Effective Date, Redback and the Shareholders&#8217; Agent, as<br \/>\n             agent for and on behalf of each of the Persons entitled to receive<br \/>\n             Exchangeable Shares pursuant to <\/p>\n<p>                                       22<\/p>\n<p>             the Plan of Arrangement, will enter into a registration rights<br \/>\n             agreement (the &#8220;REGISTRATION RIGHTS AGREEMENT&#8221;), substantially in<br \/>\n             the form and content of Exhibit H hereto, with such changes thereto<br \/>\n             as the parties hereto, acting reasonably, may approve.<\/p>\n<p>2.7      PREPARATION OF FILINGS.<\/p>\n<p>         (a) Redback and Abatis shall cooperate in:<\/p>\n<p>             (i)    the preparation of such applications for the orders and the<br \/>\n                    preparation of such required registration statements and<br \/>\n                    such other documents reasonably deemed by Redback or Abatis<br \/>\n                    to be necessary to discharge, in the manner contemplated by<br \/>\n                    Section 2.6, their respective obligations under United<br \/>\n                    States and Canadian federal, provincial, territorial or<br \/>\n                    state securities Laws in connection with the Arrangement and<br \/>\n                    the other transactions contemplated hereby;<\/p>\n<p>             (ii)   the taking of all such action as may be required under any<br \/>\n                    applicable United States and Canadian federal, provincial,<br \/>\n                    territorial or state securities Laws (including<br \/>\n                    &#8220;blue sky laws&#8221;), in connection with the issuance of the<br \/>\n                    Exchangeable Shares and the Redback Common Shares in<br \/>\n                    connection with the Arrangement or the issuance or exercise<br \/>\n                    of the Replacement Options, to the extent the same is<br \/>\n                    contemplated by Section 2.6; provided, however, that with<br \/>\n                    respect to the United States &#8220;blue sky&#8221; and Canadian<br \/>\n                    provincial qualifications neither Redback nor Abatis shall<br \/>\n                    be required to register or qualify as a foreign corporation<br \/>\n                    or to take any action that would subject it to service of<br \/>\n                    process in any jurisdiction where such entity is not now so<br \/>\n                    subject, except as to matters and transactions arising<br \/>\n                    solely from the offer and sale of the Exchangeable Shares<br \/>\n                    and the Redback Common Shares; and<\/p>\n<p>             (iii)  the taking of all such action as may be required<br \/>\n                    under the CBCA in connection with the transactions<br \/>\n                    contemplated by this Agreement and the Plan of<br \/>\n                    Arrangement.<\/p>\n<p>         (b) Each of Redback and Abatis shall, on a timely basis, furnish to<br \/>\n             the other all such information concerning it and its shareholders<br \/>\n             as may be required (and, in the case of its shareholders, available<br \/>\n             to it) to effect the actions described in Sections 2.5<\/p>\n<p>                                       23<\/p>\n<p>             and 2.6 and the foregoing provisions of this Section 2.7, and each<br \/>\n             covenants that no information furnished by it (to its knowledge<br \/>\n             in the case of information concerning its shareholders) in<br \/>\n             connection with such actions or otherwise in connection with the<br \/>\n             consummation of the Arrangement and the other transactions<br \/>\n             contemplated by this Agreement will contain any untrue statement<br \/>\n             of a material fact or omit to state a material fact required to<br \/>\n             be stated in any such document or necessary in order to make any<br \/>\n             information so furnished for use in any such document not<br \/>\n             misleading in the light of the circumstances in which it is<br \/>\n             furnished or to be used.<\/p>\n<p>         (c) Each of Redback  and Abatis  shall  promptly  notify the other<br \/>\n             if at any time before or after the Effective Time it becomes<br \/>\n             aware that the Circular or an application for an order or a<br \/>\n             registration statement described in Section 2.6 contains any<br \/>\n             untrue statement of a material fact or omits to state a material<br \/>\n             fact required to be stated therein or necessary to make the<br \/>\n             statements contained therein not misleading in light of the<br \/>\n             circumstances in which they are made, or that otherwise requires<br \/>\n             an amendment or supplement to the Circular or such application or<br \/>\n             registration statement. In any such event, Redback and Abatis<br \/>\n             shall cooperate in the preparation of a supplement or amendment<br \/>\n             to the Circular or such other document, as required and as the<br \/>\n             case may be, and, if required, shall cause the same to be<br \/>\n             distributed to the Abatis Shareholders and the Abatis<br \/>\n             Optionholders and\/or filed with the relevant securities<br \/>\n             regulatory authorities.<\/p>\n<p>         (d) Each of Abatis and Redback shall ensure that the Circular complies<br \/>\n             with all applicable Laws and, without limiting the generality of<br \/>\n             the foregoing, shall ensure that the Circular does not contain any<br \/>\n             untrue statement of a material fact or omit to state a material<br \/>\n             fact required to be stated therein or necessary to make the<br \/>\n             statements contained therein not misleading in light of the<br \/>\n             circumstances in which they are made (other than, in the case of<br \/>\n             Abatis, with respect to any information relating to and provided by<br \/>\n             the Redback Parties and, in the case of Redback, with respect to<br \/>\n             information relating to and provided by Abatis) and shall ensure<br \/>\n             that the Circular provides Abatis Shareholders and the Abatis<br \/>\n             Optionholders with information in sufficient detail to permit them<br \/>\n             to form a reasoned judgment concerning the matters to be placed<br \/>\n             before them at the Abatis Meeting.<\/p>\n<p>         (e) Redback  shall  ensure  that the Form S-8 and any Form S-3  filed<br \/>\n             with the SEC  pursuant  to this  Agreement  or the Registration<br \/>\n             Rights  Agreement  complies  with all  applicable  Laws and,<br \/>\n             without  limiting the  generality  of the foregoing,  that such  <\/p>\n<p>                                       24<\/p>\n<p>             documents do not contain any untrue  statement of a material  fact<br \/>\n             or omit to state a material fact required to be stated therein or<br \/>\n             necessary to make the statements  contained  therein not misleading<br \/>\n             in light of the  circumstances  in which they are made (other than<br \/>\n             with  respect to any  information  relating to and provided by<br \/>\n             Abatis or any third party that is not an affiliate of Redback for<br \/>\n             inclusion  therein),  and Abatis shall  provide to Redback,  for<br \/>\n             inclusion in the Form S-8 and Form S-3, all  information  regarding<br \/>\n             Abatis which is necessary for the completion and filing thereof.<\/p>\n<p>     2.8     LOCK-UP OF SHARES ISSUED PURSUANT TO THE ARRANGEMENT.<br \/>\nNotwithstanding any other provision of this Agreement or any of the<br \/>\ndocuments referred to herein or contemplated hereby, none of the Persons<br \/>\nentitled to receive Exchangeable Shares and\/or Redback Common Shares to be<br \/>\nissued pursuant to the Arrangement, the Redback Common Shares to be issued upon<br \/>\nthe exchange of the Exchangeable Shares from time to time or the Redback Common<br \/>\nShares to be issued from time to time upon the exercise of the Replacement<br \/>\nOptions shall, directly or indirectly, sell, offer to sell, contract to sell<br \/>\n(including any short sale), grant any option or otherwise transfer or dispose<br \/>\nof:<\/p>\n<p>         (a) any of the shares so issued to such holder, at any time on or<br \/>\n             before the 60th day following the Effective Date; or<\/p>\n<p>         (b) more than 50% of the shares so issued to such holder,<br \/>\n             at any time during the period commencing on the 60th day<br \/>\n             following the Effective Date and ending on the 90th day<br \/>\n             following the Effective Date,<\/p>\n<p>and each of Redback or Exchangeco may, at its discretion, cause a legend to such<br \/>\neffect to be affixed on the certificates representing such shares and provide<br \/>\nstop-transfer instructions to their respective transfer agents with respect such<br \/>\nrestrictions.<\/p>\n<p>3.0               REPRESENTATIONS AND WARRANTIES<\/p>\n<p>3.1     REPRESENTATIONS AND WARRANTIES OF ABATIS. Abatis hereby represents<br \/>\nand warrants to and in favour of the Redback Parties as follows and acknowledges<br \/>\nthat the Redback Parties are relying on such representations and warranties in<br \/>\nconnection with the transactions herein contemplated:<\/p>\n<p>3.1.1   INCORPORATION AND ORGANIZATION OF ABATIS. Abatis is a corporation<br \/>\nduly incorporated under the CBCA, is validly subsisting, has full corporate and<br \/>\nlegal power and authority to own, lease and operate the properties currently<br \/>\nowned, leased and operated by it and <\/p>\n<p>                                       25<\/p>\n<p>conduct its business as currently conducted, is duly registered as an<br \/>\nextra-provincial company under the Company Act, is in good standing with the<br \/>\nOffice of the Registrar of Companies for the Province of British Columbia with<br \/>\nrespect to the filing of annual reports and is in good standing with the<br \/>\nDirector with respect to the filing of annual returns. Abatis is duly qualified<br \/>\nor licenced to do business and is in good standing as a foreign corporation or<br \/>\norganization authorized to do business in all jurisdictions in which the<br \/>\ncharacter of the properties owned, leased or operated or the nature of the<br \/>\nbusiness conducted by it would make such qualification or licencing necessary.<br \/>\nNo proceedings have been instituted or are pending for the dissolution or<br \/>\nliquidation of Abatis. True and complete copies of the Articles of Incorporation<br \/>\nand by-laws of Abatis have been provided to Redback. Other than as set forth in<br \/>\nthe Abatis Disclosure Schedule, no Articles of Amendment have been filed or<br \/>\nauthorized by the shareholders of Abatis and no by-laws have been amended or<br \/>\nenacted since April 15, 1999.<\/p>\n<p>3.1.2   CAPITALIZATION. The authorized capital of Abatis consists of an<br \/>\nunlimited number of Abatis Voting Common Shares and an unlimited number of<br \/>\nAbatis Non-Voting Common Shares, of which, as of the date hereof, 9,461,793<br \/>\nAbatis Voting Common Shares and 951,175 Abatis Non-Voting Common Shares are<br \/>\nissued and outstanding. No Abatis Shares are held in treasury or authorized or<br \/>\nreserved for issuance, other than upon the exercise of the Abatis Options. The<br \/>\nPrincipal Shareholders hold, in the aggregate, 9,462,618 Abatis Voting Common<br \/>\nShares and Abatis Non-Voting Common Shares and 1,620,000 Abatis Options,<br \/>\nrepresenting not less than 82% of the aggregate number of Abatis Shares and<br \/>\nAbatis Options outstanding as of the date of this Agreement. All outstanding<br \/>\nAbatis Shares have been duly authorized and are validly issued, and other than<br \/>\nas set forth in the Abatis Disclosure Schedule, are fully paid and<br \/>\nnon-assessable, were not issued in violation of the terms of any agreement or<br \/>\nother understanding binding upon Abatis at the time at which they were issued<br \/>\nand were issued in compliance with the articles and by-laws of Abatis and all<br \/>\napplicable Laws. Other than as set forth in the Abatis Disclosure Schedule,<br \/>\nthere are, and have been, no preemptive rights relating to the allotment or<br \/>\nissuance of any of the issued and outstanding Abatis Shares, other than rights<br \/>\nunder the Shareholders&#8217; Agreement, such rights having been either complied with<br \/>\nor waived. As of the date hereof, Abatis Options for the purchase of 2,975,552<br \/>\nAbatis Voting Common Shares are outstanding and no Person other than (a) Redback<br \/>\nunder this Agreement, (b) certain of the Principal Shareholders under the<br \/>\nShareholders&#8217; Agreement, (c) the holders of Abatis Non-Voting Common Shares with<br \/>\nrespect to their right or obligation to convert such shares to Abatis Voting<br \/>\nCommon Shares in accordance with the share rights attached to the Abatis<br \/>\nNon-Voting Common Shares, or (d) as otherwise set forth in the Abatis Disclosure<br \/>\nSchedule, has any other agreement, option, commitment, arrangement, or any other<br \/>\nright or privilege (whether by law, pre-emptive or contractual) capable of<br \/>\nbecoming an agreement, option or commitment (including any such <\/p>\n<p>                                       26<\/p>\n<p>right or privilege under convertible securities, warrants or convertible<br \/>\nobligations of any nature) for:<\/p>\n<p>         (x) the purchase, subscription, allotment or issuance of, or<br \/>\n             conversion into, any of the unissued shares or any other securities<br \/>\n             of Abatis; or<\/p>\n<p>         (y) the purchase or other acquisition from Abatis of any of<br \/>\n             its undertakings, business or assets, other than the purchase<br \/>\n             by customers of Abatis of Products in the ordinary course of<br \/>\n             Abatis&#8217;s business.<\/p>\n<p>There are no outstanding bonds, debentures or other evidences of indebtedness of<br \/>\nAbatis having the right to vote (or that are convertible for or exercisable into<br \/>\nsecurities having the right to vote) with the holders of the Abatis Shares on<br \/>\nany matter.<\/p>\n<p>3.1.3    AUTHORITY AND NO VIOLATION.<\/p>\n<p>         (a) Abatis has all requisite  corporate power and authority to enter<br \/>\n             into this Agreement and the documents required to be executed by<br \/>\n             Abatis in connection with the transactions contemplated herein,<br \/>\n             to perform its obligations hereunder and, subject to obtaining<br \/>\n             the approval of the Abatis Shareholders and the Abatis<br \/>\n             Optionholders as contemplated by Section 2.0, to consummate the<br \/>\n             Arrangement and the other transactions contemplated by this<br \/>\n             Agreement. The execution and delivery of this Agreement and such<br \/>\n             other documents by Abatis and the consummation by Abatis of the<br \/>\n             transactions contemplated by this Agreement (including the<br \/>\n             transfer of the Abatis Shares to Exchangeco) and such other<br \/>\n             documents have been duly authorized by the board of directors of<br \/>\n             Abatis and no other corporate proceedings on its part are<br \/>\n             necessary to authorize this Agreement and the Escrow Agreement or<br \/>\n             the transactions contemplated hereby or thereby, other than:<\/p>\n<p>             (i)  with respect to the Circular and other matters relating solely<br \/>\n                  thereto,  including the implementation of the Arrangement,<br \/>\n                  the approval of the board of directors of Abatis; and<\/p>\n<p>             (ii) with respect to the completion of the Arrangement, the<br \/>\n                  approval of the Abatis Shareholders and the Abatis<br \/>\n                  Optionholders and such other corporate proceedings of Abatis<br \/>\n                  as may be required by the Interim Order.<\/p>\n<p>                                       27<\/p>\n<p>      (b)    This Agreement has been duly executed and delivered by Abatis and<br \/>\n             constitutes a legal, valid and binding obligation, enforceable<br \/>\n             against it in accordance with its terms, subject to bankruptcy,<br \/>\n             insolvency and other similar Laws affecting creditors&#8217; rights<br \/>\n             generally, and to general principles of equity. All documents<br \/>\n             required to be executed by Abatis in connection with the<br \/>\n             transactions contemplated herein will be duly executed and<br \/>\n             delivered by Abatis and, when so executed and delivered, will<br \/>\n             constitute a legal, valid and binding obligation, enforceable<br \/>\n             against it in accordance with its terms, subject to bankruptcy,<br \/>\n             insolvency and other similar Laws affecting creditors&#8217; rights<br \/>\n             generally, and to general principles of equity.<\/p>\n<p>      (c)    The approval of this Agreement and the other documents required to<br \/>\n             be executed by Abatis in connection with the transactions<br \/>\n             contemplated herein, the execution and delivery by Abatis of this<br \/>\n             Agreement and such other documents, and the performance by Abatis<br \/>\n             of its obligations hereunder and the completion of the Arrangement<br \/>\n             and the transactions contemplated thereby, will not:<\/p>\n<p>             (i)  conflict with, result in a violation or breach of, constitute<br \/>\n                  a default or require any consent (other than such as has<br \/>\n                  already been obtained), to be obtained under, or give rise to<br \/>\n                  any termination rights or payment obligation under, any<br \/>\n                  provision of:<\/p>\n<p>                  (A)      its articles, by-laws or other charter documents,<br \/>\n                           including any unanimous shareholder agreement or any<br \/>\n                           other agreement or understanding with any party<br \/>\n                           holding an ownership interest in it;<\/p>\n<p>                  (B)      the Shareholders&#8217; Agreement;<\/p>\n<p>                  (C)      any resolutions of its board of directors (or any<br \/>\n                           committee thereof) or shareholders;<\/p>\n<p>                  (D)      subject to obtaining the Appropriate  Regulatory<br \/>\n                           Approvals  relating to Abatis or the transactions<br \/>\n                           contemplated herein, any Laws; or<\/p>\n<p>                  (E)      subject to obtaining any consent, approval, permit or<br \/>\n                           acknowledgement which may be required thereunder in<br \/>\n                           connection with the completion of the transactions<br \/>\n                           herein contemplated, details of which are set forth<br \/>\n                           in the Abatis Disclosure Schedule,<\/p>\n<p>                                       28<\/p>\n<p>                           any licence or registration or any agreement,<br \/>\n                           contract or commitment, written or oral, which Abatis<br \/>\n                           is a  party to or bound by or subject to;<\/p>\n<p>             (ii)  give rise to any right of termination or acceleration of<br \/>\n                   indebtedness, or cause any third party indebtedness to come<br \/>\n                   due before its stated maturity or cause any available credit<br \/>\n                   to cease to be available;<\/p>\n<p>             (iii) result in the imposition of any Encumbrance upon any of its<br \/>\n                   assets, or restrict, hinder, impair or limit its ability to<br \/>\n                   carry on its business as and where it is now being carried<br \/>\n                   on or as and where it may be carried on in the future; or<\/p>\n<p>             (iv)  other than as set forth in the Abatis Disclosure Schedule,<br \/>\n                   result in any payment (including severance, unemployment<br \/>\n                   compensation, golden parachute, bonus or otherwise) becoming<br \/>\n                   due to any Interested Person, or any increase in any Employee<br \/>\n                   Benefits otherwise payable, or the acceleration of<br \/>\n                   the time of payment, vesting or exercise of any<br \/>\n                   Employee Benefits, including the vesting or time to<br \/>\n                   exercise any of the Abatis Options.<\/p>\n<p>      (d)    No consent, approval, order or authorization of, or<br \/>\n             registration, declaration or filing with, any Governmental<br \/>\n             Entity or other Person is required to be obtained by Abatis in<br \/>\n             connection with the execution and delivery of this Agreement<br \/>\n             or any of the other documents contemplated hereby, or the<br \/>\n             consummation by Abatis of the transactions contemplated hereby<br \/>\n             or thereby, other than:<\/p>\n<p>             (i)   any approvals required by the Interim Order;<\/p>\n<p>             (ii)  the Final Order;<\/p>\n<p>             (iii) filings with the Director under the CBCA;<\/p>\n<p>             (iv)  the Appropriate Regulatory Approvals relating to Abatis;<\/p>\n<p>             (v)   any other consents, approvals, orders, authorizations,<br \/>\n                   declarations or filings of or with a Governmental Entity<br \/>\n                   which, if not obtained, would not in the aggregate have a<br \/>\n                   Material Adverse Effect on Abatis;<\/p>\n<p>                                       29<\/p>\n<p>             (vi)  the waivers or approvals of ALCATEL Networks Corporation and<br \/>\n                   of 3494365 Canada Inc. under the Shareholders&#8217; Agreement,<br \/>\n                   which waivers or approvals have been obtained prior to the<br \/>\n                   date of this Agreement and copies of which are attached to<br \/>\n                   the Abatis Disclosure Schedule; and<\/p>\n<p>             (vii) any other consents or approvals referred to in Section 3.1.24<br \/>\n                   and set out in the Abatis Disclosure Schedule.<\/p>\n<p>3.1.4        NO DEFAULTS. Except as disclosed in the Abatis Disclosure Schedule,<br \/>\nAbatis is not in default under, and there exists no event, condition or<br \/>\noccurrence which, after notice or lapse of time or both, would constitute such a<br \/>\ndefault under, any contract, agreement, licence or franchise to which it is a<br \/>\nparty which would, if terminated due to such default, cause a Material Adverse<br \/>\nEffect on Abatis.<\/p>\n<p>3.1.5        ISSUED SHARES AND OPTIONS. The Abatis Disclosure Schedule sets<br \/>\nforth a true and complete list, as of the date hereof, of all of the issued and<br \/>\noutstanding Abatis Shares, including the registered holders of all such shares,<br \/>\nand all of the outstanding and unexercised Abatis Options, including the<br \/>\nholders, dates of grant, exercise prices, expiry dates and exercise or vesting<br \/>\ndates of such Abatis Options and the number of Abatis Shares which are the<br \/>\nsubject thereof. Except as disclosed in the Abatis Disclosure Schedule, the<br \/>\ncertificates evidencing the Abatis Shares bear no restrictive legends and none<br \/>\nof the articles or by-laws of Abatis, the Shareholders&#8217; Agreement or any other<br \/>\nshareholder agreement or unanimous shareholder agreement governing the affairs<br \/>\nof Abatis or the relationship, rights and duties of shareholders contains or<br \/>\nprovides for any restrictions or restrictive legends with respect to the Abatis<br \/>\nShares or any of them, other than restrictions contained in the Shareholders&#8217;<br \/>\nAgreement, which will terminate as of the Effective Time.<\/p>\n<p>3.1.6        NO OTHER SHARES. Abatis does not own, beneficially, any shares in<br \/>\nthe capital of any corporation, and does not hold any securities or obligations<br \/>\nof any kind convertible into or exchangeable for shares in the capital of any<br \/>\ncorporation. Abatis is not a party to any agreement for Abatis to acquire any<br \/>\nshares in the capital of any corporation.<\/p>\n<p>3.1.7        FINANCIAL STATEMENTS. The Financial Statements, a copy of which is<br \/>\nincluded in the Abatis Disclosure Schedule, have been prepared in accordance<br \/>\nwith generally accepted accounting principles applied on a basis consistent with<br \/>\nthose of previous years, the requirements of applicable Laws, are correct and<br \/>\ncomplete and present fairly, in all material respects:<\/p>\n<p>                                       30<\/p>\n<p>          (a)  all the assets, liabilities (whether accrued, absolute,<br \/>\n               contingent or otherwise) and the financial condition of Abatis as<br \/>\n               at the Financial Year End; and<\/p>\n<p>          (b)  the results of operations and cash flows of Abatis for the<br \/>\n               12-month period ended on the Financial Year End.<\/p>\n<p>Since the Financial Year End, Abatis has incurred no liability, indebtedness,<br \/>\nobligation, expense, claim, deficiency, guaranty or endorsement of any type,<br \/>\nwhether accrued, absolute, contingent, matured, unmatured or otherwise (whether<br \/>\nor not required to be reflected in financial statements in accordance with<br \/>\ngenerally accepted accounting principles), and has no knowledge of any potential<br \/>\nliabilities or obligations, which individually or in the aggregate have not been<br \/>\nreflected in the Financial Statements, other than liabilities, indebtedness and<br \/>\nobligations incurred by Abatis in the ordinary course of business, or as<br \/>\ncontemplated in this Agreement or as disclosed in the Abatis Disclosure Schedule<br \/>\n(including the Interim Financial Statements forming a part thereof).<\/p>\n<p>3.1.8          INTERIM STATEMENTS. Except as set forth in the Abatis Disclosure<br \/>\nSchedule, the Interim Financial Statements, a copy of which is included in the<br \/>\nAbatis Disclosure Schedule, have been prepared in accordance with generally<br \/>\naccepted accounting principles applied on a basis consistent with those of<br \/>\nprevious years, are correct and complete and present fairly, in all material<br \/>\nrespects:<\/p>\n<p>          (a)  all the assets, liabilities (whether accrued, absolute,<br \/>\n               contingent or otherwise) and the financial condition of Abatis as<br \/>\n               at May 31, 2000; and<\/p>\n<p>          (b)  the revenues, earnings, results of operations and cash flows of<br \/>\n               Abatis for the six month period ended on May 31, 2000,<\/p>\n<p>provided, however, that<\/p>\n<p>          (i)  the Interim Financial Statements do not contain all footnotes<br \/>\n               required under generally accepted accounting principles; and<\/p>\n<p>          (ii) the Interim Financial Statements are subject to adjustments<br \/>\n               for taxes (including investment tax credits), accruals for<br \/>\n               bonuses, revenue cut-off, payables cut-off and review of accounts<br \/>\n               receivable, the net effect of which would not be material to<br \/>\n               Redback in contemplating the acquisition of all of the<br \/>\n               outstanding shares of Abatis.<\/p>\n<p>                                       31<\/p>\n<p>3.1.9          BUSINESS CARRIED ON IN ORDINARY COURSE.  The Business has been<br \/>\n               carried on in the ordinary course since the Financial Year End,<br \/>\n               and since the Financial Year End:<\/p>\n<p>          (a)  there has been no Material Adverse Change with respect to Abatis,<br \/>\n               except any Material Adverse Change in Abatis&#8217;s sales which is<br \/>\n               attributable to or results from the announcement of the<br \/>\n               transactions contemplated in this Agreement;<\/p>\n<p>          (b)  there has been no damage, destruction or loss of any material<br \/>\n               tangible assets (including any medium in which the Abatis<br \/>\n               Material Intellectual Property resides), whether covered by<br \/>\n               insurance or not, that could reasonably be expected to have a<br \/>\n               Material Adverse Effect on Abatis;<\/p>\n<p>          (c)  there has been no split, combination or reclassification of any<br \/>\n               of the outstanding Abatis Shares, and Abatis has not nor declared<br \/>\n               or paid any dividends on or made any other distributions (in<br \/>\n               either case, in stock or property) on or in respect of the<br \/>\n               outstanding Abatis Shares;<\/p>\n<p>          (d)  except as set forth in the Abatis Disclosure Schedule, Abatis has<br \/>\n               not allotted, reserved, set aside or issued, authorized or<br \/>\n               proposed the allotment, reservation, setting aside or issuance<br \/>\n               of, or purchased or redeemed or proposed the purchase or<br \/>\n               redemption of, any shares in its capital stock or any class of<br \/>\n               securities convertible or exchangeable into, or rights, warrants<br \/>\n               or options to acquire, any such shares or other convertible or<br \/>\n               exchangeable securities, nor has Abatis agreed to do any of the<br \/>\n               foregoing, except for:<\/p>\n<p>               (i)  the issuance of Abatis Voting Common Shares pursuant to<br \/>\n                    Abatis Options which are or have become fully vested;<\/p>\n<p>               (ii) the grant of Abatis Options to certain officers, directors,<br \/>\n                    employees, consultants and suppliers of Abatis since the<br \/>\n                    Financial Year End;<\/p>\n<p>               (iii)the allotment and reservation for issuance of Abatis Voting<br \/>\n                    Common Shares pursuant to Abatis Options granted since the<br \/>\n                    Financial Year End;<\/p>\n<p>               (iv) the issuance of 1,626,000 Abatis Voting Common Shares to<br \/>\n                    ALCATEL Networks Corporation (formerly known as Newbridge<br \/>\n                    Networks<\/p>\n<p>                                       32<\/p>\n<p>                    Corporation) pursuant to rights to maintain its pro rata<br \/>\n                    interest in Abatis under the Shareholders&#8217; Agreement; and<\/p>\n<p>               (v)  the issuance of Abatis Voting Common Shares to employees of<br \/>\n                    Abatis who have subscribed for Abatis Voting Common Shares,<\/p>\n<p>               particulars of which are set forth in the Abatis Disclosure<br \/>\n               Schedule;<\/p>\n<p>          (e)  except as disclosed in the Abatis Disclosure Schedule, there has<br \/>\n               been no increase in the salary or other cash compensation payable<br \/>\n               or to become payable by Abatis to any of its officers, directors,<br \/>\n               employees or advisors, other than in the ordinary course of<br \/>\n               business, and there has been no declaration, payment or<br \/>\n               commitment or obligation of any kind for the payment or granting<br \/>\n               by Abatis of a bonus, stock option or other additional salary or<br \/>\n               compensation to any such Person, or any grant to any such Person<br \/>\n               of any increase in severance or termination pay, nor has Abatis<br \/>\n               agreed to do any of the foregoing;<\/p>\n<p>          (f)  except as disclosed in the Abatis Disclosure Schedule, there has<br \/>\n               been no increase in or modification of any Employee Benefits or<br \/>\n               agreement to increase or modify any Employee Benefits (including,<br \/>\n               in either case, the granting of stock options, restricted stock<br \/>\n               awards or stock appreciation rights) made to, for or with any of<br \/>\n               its directors or officers, other than increases in salary or cash<br \/>\n               compensation payable or to become payable by Abatis to any of its<br \/>\n               officers or directors, provided any such increase is in the<br \/>\n               ordinary course of business of Abatis;<\/p>\n<p>          (g)  Abatis has not acquired or sold, pledged, leased, encumbered or<br \/>\n               otherwise disposed of any material property or assets (excluding<br \/>\n               the sale of inventory in the ordinary course of business) or<br \/>\n               incurred or committed to incur capital expenditures in excess of<br \/>\n               $1,325,000, in the aggregate, as of July 26, 2000, nor has Abatis<br \/>\n               agreed to do any of the foregoing;<\/p>\n<p>          (h)  except as set forth in the Abatis Disclosure Schedule, Abatis has<br \/>\n               not entered into any material contract, agreement, licence,<br \/>\n               franchise, lease transaction, commitment or other right or<br \/>\n               obligation and has not amended, modified, relinquished,<br \/>\n               terminated or failed to renew any Material Agreement, other than<br \/>\n               in the ordinary course of business of Abatis;<\/p>\n<p>                                       33<\/p>\n<p>          (i)  except as set forth in the Abatis Disclosure Schedule, there has<br \/>\n               been no transfer (by way of a licence or otherwise) or agreement<br \/>\n               to transfer to any Person of rights to any Abatis Material<br \/>\n               Intellectual Property, other than non-exclusive licences in the<br \/>\n               ordinary course of business;<\/p>\n<p>          (j)  except as set forth in the Abatis Disclosure Schedule, Abatis has<br \/>\n               not made any change in accounting policies, principles, methods,<br \/>\n               practices or procedures (including for bad debts, contingent<br \/>\n               liabilities or otherwise), respecting capitalization or expense<br \/>\n               of research and development expenditures, depreciation or<br \/>\n               amortization rates or timing of recognition of income and<br \/>\n               expense;<\/p>\n<p>          (k)  Abatis has taken all commercially reasonable action required to<br \/>\n               maintain, renew or enforce any Abatis Registered Intellectual<br \/>\n               Property and to enforce any other Abatis Material Intellectual<br \/>\n               Property owned by Abatis;<\/p>\n<p>          (l)  there has been no notice delivered to Abatis of any claim of<br \/>\n               ownership by a third party of any of the Abatis Material<br \/>\n               Intellectual Property owned or developed by Abatis or of<br \/>\n               infringement by Abatis of any third party&#8217;s Intellectual<br \/>\n               Property;<\/p>\n<p>          (m)  except as set forth in the Abatis Disclosure Schedule, there has<br \/>\n               been no amendment to the articles or by-laws of Abatis;<\/p>\n<p>          (n)  there has been no disruption in the normal work of Abatis&#8217;s<br \/>\n               workforce or claim of wrongful discharge or other unlawful labour<br \/>\n               practice in respect of Abatis;<\/p>\n<p>          (o)  there has been no waiver by Abatis or agreement to waive, any<br \/>\n               right of substantial value and, except as set forth in the Abatis<br \/>\n               Disclosure Schedule, Abatis has not entered into any commitment<br \/>\n               or transaction not in the ordinary course of business where such<br \/>\n               right, commitment or transaction is or would be material in<br \/>\n               relation to Abatis or the Business; or<\/p>\n<p>          (p)  except as set forth in the Abatis Disclosure Schedule, there has<br \/>\n               been no creation, or agreement by Abatis to create any<br \/>\n               Encumbrance on any of its property or assets (except for any lien<br \/>\n               for unpaid Taxes not yet due).<\/p>\n<p>3.1.10         PARTNERSHIPS OR JOINT VENTURES. Except as set forth in the Abatis<br \/>\nDisclosure Schedule, Abatis is not a partner or participant in any partnership,<br \/>\njoint venture, profit-sharing arrangement or other business combination of any<br \/>\nkind and is not party to any agreement under <\/p>\n<p>                                       34<\/p>\n<p>which Abatis agrees to carry on any part of its business or any other activity<br \/>\nin such manner or by which Abatis agrees to share any revenue or profit with any<br \/>\nother Person other than royalty payments to its suppliers under licence<br \/>\nagreements disclosed in the Abatis Disclosure Schedule.<\/p>\n<p>3.1.11         MINUTE BOOKS AND CORPORATE RECORDS. Except as set forth in the<br \/>\nAbatis Disclosure Schedule, the minute and record books of Abatis contain<br \/>\ncomplete and accurate minutes of all meetings of, and copies of all by-laws and<br \/>\nresolutions passed by, or consented to in writing by, the directors (and any<br \/>\ncommittees thereof) and shareholders of Abatis since its incorporation and which<br \/>\nare required to be maintained in such books under the CBCA; all such meetings<br \/>\nwere duly called and held and all such by-laws and resolutions were duly passed<br \/>\nor enacted. The share certificate books, registers of shareholders, registers of<br \/>\ntransfers, registers of directors, registers of holders of Debt Instruments and<br \/>\nother corporate registers of Abatis comply with the provisions of all applicable<br \/>\nLaws and, except as set forth in the Abatis Disclosure Schedule, are complete<br \/>\nand accurate in all material respects. Except for the Shareholders&#8217; Agreement,<br \/>\nAbatis is not a party to or bound by or subject to any shareholder agreement or<br \/>\nunanimous shareholder agreement governing the affairs of Abatis or the<br \/>\nrelationships, rights and duties of shareholders and is not subject to a<br \/>\nshareholder rights plan or &#8220;poison pill&#8221; or similar plan.<\/p>\n<p>3.1.12         ACCURACY OF BOOKS AND RECORDS. The books and records, accounting,<br \/>\nfinancial and otherwise, of Abatis fairly and correctly set out and disclose in<br \/>\nall material respects, in accordance with generally accepted accounting<br \/>\nprinciples, the financial position of Abatis as at the date hereof and all<br \/>\nmaterial financial transactions of Abatis have been accurately recorded in such<br \/>\nbooks and records on a consistent basis and in conformity with generally<br \/>\naccepted accounting principles. Except as disclosed in the Abatis Disclosure<br \/>\nSchedule, all records, systems, controls, data or information (including any<br \/>\ndigital, electronic, mechanical, photographic or other technological process or<br \/>\ndevice whether computerized or not) required by Abatis to operate the Business<br \/>\nare in the full possession and control of and are owned exclusively by Abatis.<\/p>\n<p>3.1.13         GUARANTEES. Except as set forth and described in the Abatis<br \/>\nDisclosure Schedule, Abatis is not a party to or bound by or subject to any<br \/>\nGuarantee of the indebtedness of any other Person.<\/p>\n<p>3.1.14         INTERESTED PERSONS.<\/p>\n<p>          (a)  Except as set forth and described in the Abatis Disclosure<br \/>\n               Schedule, since the Financial Year End, no payment has been made<br \/>\n               or authorized by Abatis to or for<\/p>\n<p>                                       35<\/p>\n<p>               the benefit of any Interested Person, except in the ordinary<br \/>\n               course of business and at the regular rates, payable as Employee<br \/>\n               Benefits, rents, management and other fees, the reimbursement of<br \/>\n               expenses incurred on behalf of Abatis or otherwise.<\/p>\n<p>          (b)  Except as set forth and described in the Abatis Disclosure<br \/>\n               Schedule, since the Financial Year End the aggregate amount of<br \/>\n               Employee Benefits, rents, management and other fees,<br \/>\n               reimbursement of expenses incurred on behalf of Abatis or other<br \/>\n               payments to the Interested Persons have been paid at no greater<br \/>\n               rates than those prevailing at the Financial Year End other than<br \/>\n               increases in salary or compensation payable or to become payable<br \/>\n               by Abatis to any Interested Person who is an officer, director,<br \/>\n               employee or advisor of Abatis, in his capacity as such, provided<br \/>\n               any such increase is in the ordinary course of business of<br \/>\n               Abatis.<\/p>\n<p>          (c)  Except as set forth and described in the Abatis Disclosure<br \/>\n               Schedule:<\/p>\n<p>               (i)  Abatis is not a party to or bound by or subject to any<br \/>\n                    agreement, contract or commitment with any Interested<br \/>\n                    Person, except for contracts of employment or contracts of<br \/>\n                    service with independent contractors;<\/p>\n<p>               (ii) Abatis does not have any loan or indebtedness outstanding<br \/>\n                    (except for obligations incurred in the ordinary course of<br \/>\n                    business with respect to Employee Benefits, rents,<br \/>\n                    management or other fees, the reimbursement of expenses<br \/>\n                    incurred on behalf of Abatis or otherwise) to any Interested<br \/>\n                    Person;<\/p>\n<p>               (iii)no Interested Person owns, directly or indirectly, in whole<br \/>\n                    or in part, any property that Abatis uses in the operation<br \/>\n                    of its business as heretofore carried on; and<\/p>\n<p>               (iv) no Interested Person has any cause of action or other claim<br \/>\n                    whatsoever against, or owes any amount to, Abatis in<br \/>\n                    connection with Abatis&#8217;s business as heretofore carried on,<br \/>\n                    except for any liability reflected in the Financial<br \/>\n                    Statements or the Interim Financial Statements and claims in<br \/>\n                    the ordinary course of business such as, without limitation,<br \/>\n                    for accrued vacation pay and accrued benefits under the<br \/>\n                    Employee Benefits.<\/p>\n<p>                                       36<\/p>\n<p>3.1.15         DIRECTORS AND OFFICERS. The Abatis Disclosure Schedule sets forth<br \/>\nthe names and titles of all directors and officers of Abatis as at the date of<br \/>\nthis Agreement.<\/p>\n<p>3.1.16         EMPLOYMENT AND EMPLOYEE BENEFIT MATTERS.<\/p>\n<p>          (a)  As at July 28, 2000, Abatis had 122 full time and three part time<br \/>\n               employees, of which six and zero, respectively, are located in<br \/>\n               the United States. The names of such individuals, their years of<br \/>\n               service, their job descriptions and the Employee Benefits to<br \/>\n               which they are entitled are set forth and described in the Abatis<br \/>\n               Disclosure Schedule. To the knowledge of Abatis, without enquiry,<br \/>\n               no employee intends to terminate his employment with Abatis,<br \/>\n               whether as a result of the transactions contemplated by this<br \/>\n               Agreement or otherwise.<\/p>\n<p>          (b)  The Abatis Disclosure Schedule contains a complete list of<br \/>\n               individuals who are not employees of Abatis, and who supply their<br \/>\n               services to Abatis under personal services contracts (whether<br \/>\n               written, oral or otherwise, and including independent<br \/>\n               contractors, employees of agencies, secondees or leased employees<br \/>\n               and consultants), specifying location, start and end date of<br \/>\n               engagement, services supplied, supplying agency and fees and<br \/>\n               other amounts payable by Abatis. There are no complaints, claims<br \/>\n               or charges outstanding or, to the knowledge of Abatis,<br \/>\n               anticipated relating to the engagement of such individuals.<\/p>\n<p>          (c)  Abatis has entered into the Key Employees Employment Agreements<br \/>\n               with the Key Employees and each such agreement has been<br \/>\n               previously made available to Redback and is a legal, valid and<br \/>\n               binding obligation of Abatis, in full force and effect,<br \/>\n               unamended.<\/p>\n<p>          (d)  The Abatis Disclosure Schedule contains a complete list of all<br \/>\n               Employee Benefits maintained, or otherwise contributed to or<br \/>\n               required to be contributed to, by Abatis for the benefit of<br \/>\n               employees or former employees of Abatis, and sets out a<br \/>\n               description of all policies, handbooks and manuals relating to<br \/>\n               employment matters.<\/p>\n<p>          (e)  Except as set forth and described in the Abatis Disclosure<br \/>\n               Schedule:<\/p>\n<p>               (i)  Abatis is not a party to or bound by or subject to any<br \/>\n                    agreement or arrangement with respect to Employee Benefits<br \/>\n                    and no such agreement or<\/p>\n<p>                                       37<\/p>\n<p>                    arrangement contains any specific provision as to notice of<br \/>\n                    termination of employment or severance pay in lieu thereof;<\/p>\n<p>               (ii) Abatis has no obligations to amend any Employee Benefit and<br \/>\n                    no amendments will be made or promised prior to the<br \/>\n                    Effective Date, except with the prior written consent of<br \/>\n                    Redback;<\/p>\n<p>               (iii)all obligations of Abatis as of the Financial Year End with<br \/>\n                    respect to Employee Benefits are reflected in and have been<br \/>\n                    fully accrued in the Financial Statements;<\/p>\n<p>               (iv) Abatis is not a party to or bound by or subject to any<br \/>\n                    collective bargaining agreement or other similar arrangement<br \/>\n                    with any labour union or employee association nor has it<br \/>\n                    made any commitment to or conducted any negotiation or<br \/>\n                    discussion with any labour union or employee association<br \/>\n                    with respect to any future agreement or arrangement and, to<br \/>\n                    the knowledge of Abatis, there is no current application for<br \/>\n                    certification or other attempt to organize or establish any<br \/>\n                    labour union or employee association with respect to<br \/>\n                    employees of Abatis;<\/p>\n<p>               (v)  Abatis has, in all material respects, complied with, and<br \/>\n                    operated its business in accordance with, all applicable<br \/>\n                    Laws relating to employment and labour matters, including<br \/>\n                    employment and labour standards, occupational health and<br \/>\n                    safety, employment equity, pay equity, workers&#8217;<br \/>\n                    compensation, human rights and labour relations matters;<br \/>\n                    there are no current, pending or, to the knowledge of<br \/>\n                    Abatis, threatened claims, complaints or proceedings of any<br \/>\n                    kind involving Abatis, or to Abatis&#8217;s knowledge, any of its<br \/>\n                    employees before any Tribunal with respect to any of the<br \/>\n                    above matters; and there are no facts known to Abatis that<br \/>\n                    could reasonably be expected to give rise to any such claim,<br \/>\n                    complaint or proceeding;<\/p>\n<p>               (vi) there are no existing or, to the knowledge of Abatis,<br \/>\n                    threatened labour strikes, slow downs, work stoppages or<br \/>\n                    other similar labour troubles affecting Abatis;<\/p>\n<p>                                       38<\/p>\n<p>               (vii)Abatis has made no material representations or commitments<br \/>\n                    to its employees with respect to future increases in wages<br \/>\n                    or other compensation;<\/p>\n<p>               (viii) to the actual knowledge of Abatis, without enquiry, no<br \/>\n                    employee of Abatis is bound by any confidentiality,<br \/>\n                    non-solicitation or non-competition agreement in favour of<br \/>\n                    any Person other than Abatis which is material and relevant<br \/>\n                    to the employment of such employee by Abatis and which<br \/>\n                    imposes obligations on such employee greater than those owed<br \/>\n                    by such employee under common law;<\/p>\n<p>               (ix) no Person will, as a result of the transactions contemplated<br \/>\n                    hereby, become entitled to (A) any retirement, severance,<br \/>\n                    bonus or other such payment, (B) except as provided for in<br \/>\n                    the Plan of Arrangement, the acceleration of the vesting or<br \/>\n                    time to exercise of any outstanding stock options or other<br \/>\n                    Employee Benefits (including the Abatis Options), (C) the<br \/>\n                    forgiveness or postponement of payment of any indebtedness<br \/>\n                    owing to Abatis, or (D) receive any additional payments or<br \/>\n                    compensation under or in respect of any Employee Benefits<br \/>\n                    (including a &#8220;cash-out&#8221; of the Abatis Options as provided<br \/>\n                    for in the Abatis Stock Option Plan);<\/p>\n<p>               (x)  except as set forth in the Abatis Disclosure Schedule,<br \/>\n                    Abatis is not a party to any side letter or other written or<br \/>\n                    oral material commitment with any employee or contractor;<br \/>\n                    and<\/p>\n<p>               (xi) all accruals for unpaid vacation pay, premiums for<br \/>\n                    employment insurance, health premiums, Canada or Quebec<br \/>\n                    Pension Plan premiums, accrued wages, salaries and<br \/>\n                    commissions and other Employee Benefits have been reflected<br \/>\n                    in the books and records of Abatis.<\/p>\n<p>3.1.17         PENSION AND RETIREMENT PLANS.  Abatis does not sponsor or<br \/>\nparticipate in any pension and\/or retirement plan.<\/p>\n<p>3.1.18         DEBT INSTRUMENTS. Except as set forth and described in the Abatis<br \/>\nDisclosure Schedule, Abatis is not bound by or subject to:<\/p>\n<p>          (a)  any Debt Instrument; or<\/p>\n<p>                                       39<\/p>\n<p>          (b)  any agreement, contract or commitment to create, assume or issue<br \/>\n               any Debt Instrument;<\/p>\n<p>and no Debt Instrument or Encumbrance which Abatis is bound by or subject to is<br \/>\ndependent upon the Guarantee of or any security provided by any other Person.<\/p>\n<p>3.1.19         REAL PROPERTY. Abatis does not own or, except for the Leases of<br \/>\nreal property set forth and described in the Abatis Disclosure Schedule, have<br \/>\nany interest in, nor is Abatis a party to or bound by or subject to any<br \/>\nagreement, contract or commitment, or any option to purchase, any real or<br \/>\nimmovable property.<\/p>\n<p>3.1.20         LEASES AND LEASED PROPERTY.<\/p>\n<p>          (a)  Abatis is not a party to or bound by or subject to nor has Abatis<br \/>\n               agreed or become bound to enter into, any real or personal<br \/>\n               property lease, sublease or other right of occupancy relating to<br \/>\n               real property, whether as lessor or lessee, except for the Leases<br \/>\n               set forth and described in the Abatis Disclosure Schedule, copies<br \/>\n               of which have been provided to Redback prior to the date hereof.<br \/>\n               Abatis occupies and has the exclusive right to occupy and use all<br \/>\n               immovable Leased Property and has the exclusive right to use all<br \/>\n               movable Leased Property.<\/p>\n<p>          (b)  Each of the Leases is valid and subsisting and in good standing,<br \/>\n               all rental and other payments required to be paid by Abatis as<br \/>\n               lessee or sublessee and due and payable pursuant to the Leases<br \/>\n               have been duly paid to date and Abatis is not otherwise in<br \/>\n               default in meeting its obligations under any of the Leases and is<br \/>\n               entitled to all rights and benefits thereunder. No event exists<br \/>\n               which, but for the passing of time or the giving of notice, or<br \/>\n               both, would constitute a default by Abatis or, to the knowledge<br \/>\n               of Abatis, any other party to any Lease and no party to any Lease<br \/>\n               is claiming any such default or taking any action purportedly<br \/>\n               based upon any such default. The completion of the transactions<br \/>\n               contemplated herein will not, subject to obtaining any required<br \/>\n               consents set out in the Abatis Disclosure Schedule, afford any of<br \/>\n               the parties to any Lease or any other Person the right to<br \/>\n               terminate any Lease nor will the completion of the transactions<br \/>\n               contemplated herein result in any additional or more onerous<br \/>\n               obligation on Abatis under any Lease.<\/p>\n<p>                                       40<\/p>\n<p>3.1.21         INSURANCE.<\/p>\n<p>          (a)  Abatis maintains insurance covering its property, assets and<br \/>\n               personnel and protecting its business against loss or damage on a<br \/>\n               basis that is comparable to the insurance maintained by<br \/>\n               reasonable Persons operating businesses similar to its business<br \/>\n               as heretofore carried on. The Abatis Disclosure Schedule sets<br \/>\n               forth a list of all insurance policies currently maintained by<br \/>\n               Abatis, true and complete copies of which have been provided to<br \/>\n               Redback. Each of such insurance policies is valid and subsisting<br \/>\n               and in good standing, there is no default, whether as to the<br \/>\n               payment of premiums or otherwise, under any material term or<br \/>\n               condition of such insurance policies, and, to the knowledge of<br \/>\n               Abatis, each Person which is an insured party under any of such<br \/>\n               insurance policies is entitled to all rights and benefits<br \/>\n               thereunder.<\/p>\n<p>          (b)  The Abatis Disclosure Schedule sets forth and describes all<br \/>\n               pending claims under such insurance policies and includes true<br \/>\n               and complete copies of the most recent inspection reports, if<br \/>\n               any, received from insurance underwriters as to the condition or<br \/>\n               insurance value of the insured property and assets. Abatis has<br \/>\n               not failed to give any notice or present any claim under any such<br \/>\n               insurance policies in due and timely fashion. To the knowledge of<br \/>\n               Abatis, no circumstances have occurred which might entitle Abatis<br \/>\n               to make a claim under any such insurance policies or which might<br \/>\n               be required under any such insurance policies to be notified to<br \/>\n               the insurers thereunder and no material claim under any of such<br \/>\n               insurance policies has been made by Abatis since the Financial<br \/>\n               Year End.<\/p>\n<p>          (c)  None of such insurance policies is subject to any premium in<br \/>\n               excess of the stipulated or normal rate. No notice of<br \/>\n               cancellation of, material increase of premiums under, non-renewal<br \/>\n               with respect to, or disallowance of any claim under, any such<br \/>\n               insurance policies has been received by Abatis.<\/p>\n<p>3.1.22         MATERIAL AGREEMENTS. Except for the Material Agreements disclosed<br \/>\nin the Abatis Disclosure Schedule, as of the date of this Agreement Abatis is<br \/>\nnot a party to or bound by or subject to any of the following:<\/p>\n<p>          (a)  any distributor, sales, advertising, agency or manufacturer&#8217;s<br \/>\n               representative contract;<\/p>\n<p>                                       41<\/p>\n<p>          (b)  any continuing contract for the purchase of materials, supplies,<br \/>\n               equipment or services involving, in the case of any such<br \/>\n               contract, more than $10,000 over the life of the contract;<\/p>\n<p>          (c)  any contract that expires, or may be renewed at the option of any<br \/>\n               Person other than Abatis so as to expire, more than one year<br \/>\n               after the date of this Agreement;<\/p>\n<p>          (d)  any Debt Instrument;<\/p>\n<p>          (e)  any contract for capital expenditures in excess of $10,000 in the<br \/>\n               aggregate;<\/p>\n<p>          (f)  any contract limiting the right of Abatis to engage in any line<br \/>\n               of business or to compete with any other Person;<\/p>\n<p>          (g)  any confidentiality, secrecy or non-disclosure contract;<\/p>\n<p>          (h)  any contract pursuant to which Abatis leases any real or personal<br \/>\n               property, including the Leases;<\/p>\n<p>          (i)  any contract pursuant to which Abatis is a lessor of any<br \/>\n               machinery, equipment, motor vehicles, office furniture, fixtures<br \/>\n               or other personal property;<\/p>\n<p>          (j)  any contract with any person with whom Abatis does not deal at<br \/>\n               arm&#8217;s length within the meaning of the INCOME TAX ACT (Canada);<\/p>\n<p>          (k)  any Guarantee;<\/p>\n<p>          (l)  any licence, sublicence or other agreement to which Abatis is a<br \/>\n               party (or by which it or any Abatis Intellectual Property is<br \/>\n               bound or subject) and pursuant to which any Person has been or<br \/>\n               may be assigned, authorized to use, or given access to any Abatis<br \/>\n               Intellectual Property;<\/p>\n<p>          (m)  any licence, sublicence or other agreement pursuant to which<br \/>\n               Abatis has been or may be assigned or authorized to use, or has<br \/>\n               or may have incurred any obligation in connection with, (i) any<br \/>\n               third party Intellectual Property that is incorporated in or<br \/>\n               forms a part of any current or proposed Product, service or (ii)<br \/>\n               any Abatis Material Intellectual Property;<\/p>\n<p>                                       42<\/p>\n<p>          (n)  any agreement pursuant to which Abatis has deposited or is<br \/>\n               required to deposit with an escrow holder or any other Person,<br \/>\n               all or part of the source code (or any algorithm or documentation<br \/>\n               contained in or relating to any source code) of any Abatis<br \/>\n               Intellectual Property (&#8220;SOURCE MATERIALS&#8221;);<\/p>\n<p>          (o)  any employment contracts with employees and service contracts<br \/>\n               with independent contractors;<\/p>\n<p>          (p)  any agreement to indemnify, hold harmless or defend any other<br \/>\n               Person with respect to any assertion of personal injury, damage<br \/>\n               to property or Intellectual Property infringement,<br \/>\n               misappropriation or violation or warranting the lack thereof<br \/>\n               other than any license of Third Party Software that is not part<br \/>\n               of the Abatis Material Intellectual Property and which relates to<br \/>\n               software that is generally available to the public; and<\/p>\n<p>          (q)  any other agreement, indenture, contract, lease, deed of trust,<br \/>\n               licence, option, instrument or other commitment which is or would<br \/>\n               reasonably be expected to be material to the business,<br \/>\n               properties, assets, operations, condition (financial or<br \/>\n               otherwise) or prospects of Abatis;<\/p>\n<p>whether written or oral, and of any nature or kind whatsoever.<\/p>\n<p>3.1.23         NO BREACH OF MATERIAL CONTRACTS. Except as disclosed in the<br \/>\nAbatis Disclosure Schedule, Abatis has performed all of the material obligations<br \/>\nrequired to be performed by it, and is entitled to all benefits under, and, to<br \/>\nthe knowledge of Abatis, is not alleged to be in default in respect of, any<br \/>\nMaterial Agreement. Except as disclosed in the Abatis Disclosure Schedule, each<br \/>\nof the Material Agreements is in full force and effect, unamended, and there<br \/>\nexists no breach thereof or default or event of default or event, occurrence,<br \/>\ncondition or act with respect to Abatis or, to Abatis&#8217;s knowledge, with respect<br \/>\nto the other contracting party or otherwise that, with or without the giving of<br \/>\nnotice, the lapse of time or the happening of any other event or conditions,<br \/>\nwould (A) become a default or event of default under any Material Agreement, or<br \/>\n(B) result in the loss or expiration of any right or option by Abatis (or the<br \/>\ngain thereof by any third party) under any Material Agreement, or (C) result in<br \/>\nthe release, disclosure or delivery to any third party of any part of the Source<br \/>\nMaterials. Except as set forth in the Abatis Disclosure Schedule, Abatis has<br \/>\ndelivered a true, correct and complete copy of each of the Material Agreements<br \/>\nto Redback.<\/p>\n<p>                                       43<\/p>\n<p>3.1.24         THIRD PARTY CONSENTS. The Abatis Disclosure Schedule sets forth<br \/>\ndetails of each of the Material Agreements which requires a consent or approval<br \/>\nof the other party thereto to the Arrangement or other transactions contemplated<br \/>\nhereby.<\/p>\n<p>3.1.25         FINANCIAL FORECASTS. The financial forecasts previously<br \/>\ndelivered to Redback, copies of which are attached to the Abatis Disclosure<br \/>\nSchedule, have been prepared by the management of Abatis in good faith and are<br \/>\nbased on assumptions which Abatis believes to be reasonably supported and<br \/>\nconsistent with its plans. For greater certainty, nothing in this Section 3.1.25<br \/>\nshall be construed as a representation or warranty that such financial forecasts<br \/>\nwill accurately reflect the future financial performance of Abatis.<\/p>\n<p>3.1.26         OBLIGATIONS TO CUSTOMERS AND SUPPLIERS. Except as set forth in<br \/>\nthe Abatis Disclosure Schedule, there are no outstanding consulting contracts or<br \/>\nother maintenance obligations with or to customers or other users of the<br \/>\nProducts and services of Abatis and Abatis is not required to provide any<br \/>\nbonding or other financial security arrangements in connection with any<br \/>\ntransactions with any of its customers or suppliers, whether or not in the<br \/>\nordinary course of its business. The Abatis Disclosure Schedule sets forth full<br \/>\ndetails of any and all side letters or other written or oral commitments to<br \/>\ncustomers which are not contained in the applicable customer contract and which<br \/>\nare material to such contract.<\/p>\n<p>3.1.27         WARRANTIES AND INDEMNITIES. The Abatis Disclosure Schedule sets<br \/>\nforth a complete list of all agreements containing written warranties given to<br \/>\npurchasers of Products and services supplied by Abatis. There are no pending or,<br \/>\nto the best of Abatis&#8217;s knowledge, threatened warranty or indemnity claims<br \/>\nagainst Abatis in excess of $25,000 in any individual case, or in excess of<br \/>\n$100,000 in the aggregate, and adequate reserves for all such claims known to<br \/>\nAbatis are reflected in the Financial Statements.<\/p>\n<p>3.1.28         LEGAL PROCEEDINGS. There are no actions, suits, investigations or<br \/>\nproceedings (whether private, governmental or otherwise, and whether or not<br \/>\npurportedly on behalf of Abatis) in progress, pending, or to the knowledge of<br \/>\nAbatis, threatened, against or affecting Abatis (including actions, suits,<br \/>\ninvestigations or proceedings against any of Abatis&#8217;s directors, officers or<br \/>\nemployees which relate to the business, affairs, assets or operations of<br \/>\nAbatis), at law or in equity, or before or by any Tribunal. There is no<br \/>\njudgment, decree, injunction, ruling, order or award of any Tribunal outstanding<br \/>\nagainst or affecting Abatis. Except as set forth in the Abatis Disclosure<br \/>\nSchedule, Abatis is not aware of any grounds on which any such action, suit,<br \/>\ninvestigation or proceeding might be commenced with any reasonable likelihood of<br \/>\nsuccess, and does not have any present plans or intentions to initiate any<br \/>\nlitigation, arbitration or other proceedings against any third party.<\/p>\n<p>                                       44<\/p>\n<p>3.1.29         BANKING INFORMATION.  The Abatis Disclosure Schedule sets forth<br \/>\nand describes:<\/p>\n<p>          (a)  the name and location (including municipal address) of each bank,<br \/>\n               trust company or other institution in which Abatis has an<br \/>\n               account, money on deposit or a safety deposit box and the name of<br \/>\n               each Person authorized to draw thereon or to have access thereto;<br \/>\n               and<\/p>\n<p>          (b)  the name of each Person holding a general or special power of<br \/>\n               attorney from Abatis and a summary of the terms thereof.<\/p>\n<p>3.1.30         TAX MATTERS.<\/p>\n<p>          (a)  Save for the requirement to file income tax returns in respect of<br \/>\n               the financial year of Abatis ended the Financial Year End (which<br \/>\n               is currently being prepared by Abatis&#8217;s accountants and is<br \/>\n               expected to be filed by August 31, 2000) and in respect of the<br \/>\n               current taxation year (which return is not yet due), and any<br \/>\n               income tax return which is required to be filed as a result of or<br \/>\n               in connection with the transactions contemplated herein, Abatis<br \/>\n               has duly filed in the prescribed manner and within the prescribed<br \/>\n               time all Tax Returns required to be filed by it on or before the<br \/>\n               date hereof with any taxing or regulatory authority to which it<br \/>\n               is subject; such Tax Returns and the material accompanying such<br \/>\n               Tax Returns are accurate and complete in all material respects<br \/>\n               and Abatis has provided to Redback true and complete copies of<br \/>\n               all Tax Returns filed by Abatis.<\/p>\n<p>          (b)  Abatis has paid all Taxes that are due and payable, and any<br \/>\n               interest, penalties and fines in connection therewith, properly<br \/>\n               due and payable, and has paid all of same in connection with all<br \/>\n               known assessments, reassessments and adjustments.<\/p>\n<p>          (c)  Except as set forth in the Abatis Disclosure Schedule, the<br \/>\n               Financial Statements or the Interim Financial Statements, and<br \/>\n               except for Taxes incurred in the ordinary course of business or<br \/>\n               incurred or arising as a result of the transactions contemplated<br \/>\n               herein which Taxes are not yet due and payable, there are no<br \/>\n               Taxes or fines in respect of Taxes claimed by any Governmental<br \/>\n               Entity against Abatis or which are known to Abatis to be due and<br \/>\n               owing by Abatis and, to the knowledge of Abatis, there are no<br \/>\n               pending or threatened reassessments by any Governmental Entity in<br \/>\n               respect of Taxes owing by Abatis, and there are no matters of<br \/>\n               dispute or<\/p>\n<p>                                       45<\/p>\n<p>               under discussion with any Governmental Entity relating to Taxes<br \/>\n               or fines in respect of Taxes asserted by such Governmental Entity<br \/>\n               against Abatis.<\/p>\n<p>          (d)  Except as set forth in the Abatis Disclosure Schedule, the<br \/>\n               Financial Statements fully reflect accrued liabilities as at the<br \/>\n               Financial Year End for all Taxes which were not yet then due and<br \/>\n               payable and for which Tax Returns were not yet then required to<br \/>\n               be filed. Except as set forth and described in the Abatis<br \/>\n               Disclosure Schedule, there are no actions, suits, investigations<br \/>\n               or proceedings and no assessment, reassessment or request for<br \/>\n               information in progress, pending or, to the knowledge of Abatis,<br \/>\n               threatened against or affecting Abatis in respect of Taxes nor<br \/>\n               are any issues under discussion with any taxing authority<br \/>\n               relating to any matters which could result in claims for<br \/>\n               additional Taxes.<\/p>\n<p>          (e)  There are no agreements, waivers or other arrangements made by<br \/>\n               Abatis providing for an extension of time with respect to any<br \/>\n               assessment or reassessment of Tax, the filing of any Tax Return<br \/>\n               or the payment of any Tax by Abatis.<\/p>\n<p>          (f)  Abatis has withheld the amount of all Taxes and other deductions<br \/>\n               required under any applicable Laws to be withheld from each<br \/>\n               payment made by it and has paid all amounts withheld which are<br \/>\n               due and payable before the date hereof and all installments of<br \/>\n               Taxes which are due and payable before the date hereof to the<br \/>\n               relevant taxing or other authority within the time prescribed<br \/>\n               under any applicable Laws.<\/p>\n<p>3.1.31         ACCOUNTS RECEIVABLE. All accounts receivable of and book debts<br \/>\nand other debts due to Abatis reflected in the Financial Statements or which<br \/>\nhave come into existence since the Financial Year End were created in the<br \/>\nordinary course of Abatis&#8217;s business and, except to the extent that the same<br \/>\nhave been paid in the ordinary course of its business since the Financial Year<br \/>\nEnd, are valid and enforceable and payable in full, without any right of set-off<br \/>\nor counterclaim or any reduction for doubtful accounts other than as reflected<br \/>\nin the Financial Statements and, in the case of accounts receivable which have<br \/>\ncome into existence since the Financial Year End, other than a reasonable<br \/>\nallowance for doubtful accounts consistent with Abatis&#8217;s previous practice.<\/p>\n<p>3.1.32         COMPLIANCE WITH APPLICABLE LAWS. Except as set forth in the<br \/>\nAbatis Disclosure Schedule, Abatis has conducted and is conducting its business<br \/>\nin compliance in all material respects with all applicable Laws, in each<br \/>\njurisdiction in which its business is carried on, is not in material breach of<br \/>\nany of such Laws and is duly licenced or registered in each jurisdiction in<\/p>\n<p>                                       46<\/p>\n<p>which it owns or leases its property and assets or carries on its business, so<br \/>\nas to enable its business to be carried on as now conducted and its property and<br \/>\nassets to be so owned or leased. The Abatis Disclosure Schedule sets out a<br \/>\ncomplete and accurate list of all licences, permits, approvals, consents,<br \/>\ncertificates, registrations and authorizations (whether governmental, regulatory<br \/>\nor similar type) (the &#8220;LICENCES&#8221;), and there are no other licences, permits,<br \/>\napprovals, consents, certificates, registrations, or authorizations necessary to<br \/>\ncarry on its business as presently carried on or to own or lease any of the<br \/>\nproperty or the assets utilized by Abatis except where the lack of grant of such<br \/>\nto Abatis would not have a Material Adverse Effect on Abatis. Each Licence is<br \/>\nvalid and subsisting and in good standing and there is no default or breach of<br \/>\nany Licence and, to the best of the knowledge of Abatis, no proceeding is<br \/>\npending or threatened to revoke or limit any Licence. No Licence contains any<br \/>\nburdensome term, provision, condition or limitation which has or could have a<br \/>\nMaterial Adverse Effect on Abatis or the Business, and except as set forth in<br \/>\nthe Abatis Disclosure Schedule, requires the consent, approval, permit or<br \/>\nacknowledgement of any Person in connection with the completion of the<br \/>\ntransactions herein contemplated.<\/p>\n<p>3.1.33         CONSENTS AND APPROVALS. Except for the Appropriate Regulatory<br \/>\nApprovals set out in Exhibit B, there is no requirement to make any filing with,<br \/>\ngive any notice to or to obtain any licence, permit, certificate, registration,<br \/>\nauthorization, consent or approval of, any Governmental Entity as a condition to<br \/>\nthe lawful consummation of the transactions contemplated by this Agreement or<br \/>\nthe Plan of Arrangement, except for the filings, notifications, licences,<br \/>\npermits, certificates, registrations, consents and approvals which relate solely<br \/>\nto the identity of Redback or which are of a purely administrative nature and<br \/>\ncould be completed or obtained without adverse effect on Abatis or its business<br \/>\nimmediately after the Effective Date.<\/p>\n<p>3.1.34         NO BUSINESS RESTRICTIONS. There is no agreement (non-compete or<br \/>\notherwise), commitment, judgment, injunction, order or decree to which Abatis is<br \/>\nparty or which is otherwise binding upon Abatis which has or reasonably could be<br \/>\nexpected to have the effect of prohibiting or impairing any business practice of<br \/>\nAbatis, any acquisition of property (tangible or intangible) by Abatis or the<br \/>\nconduct of business by Abatis, as currently conducted or proposed to be<br \/>\nconducted by Abatis. Without limiting the foregoing, Abatis has not entered into<br \/>\nany agreement under which Abatis is restricted from selling, licencing or<br \/>\notherwise distributing any of its products to any class of customers, in any<br \/>\ngeographic area, during any period of time or in any segment of the market.<\/p>\n<p>3.1.35         ENVIRONMENTAL MATTERS. Abatis is not in violation of any<br \/>\napplicable Laws relating to the environment and no material expenditures are or,<br \/>\nto the knowledge of Abatis, will be required in order to comply with such<br \/>\nexisting Laws. Abatis possesses all necessary<\/p>\n<p>                                       47<\/p>\n<p>environmental licences, permits, approvals, consents, certificates,<br \/>\nregistrations and other authorizations in order for it to conduct its business<br \/>\nin material compliance with applicable Laws relating to the environment. There<br \/>\nhave been no environmental investigations, studies, audits, tests, reviews or<br \/>\nother analyses conducted by or for Abatis or, to the knowledge of Abatis, by or<br \/>\nfor any other Person with respect to any Leased Property or any real property<br \/>\npreviously owned, leased, occupied or used by Abatis while Abatis has occupied<br \/>\nsuch properties.<\/p>\n<p>3.1.36         LIABILITIES. Except as set forth in the Abatis Disclosure<br \/>\nSchedule, there are no material liabilities of Abatis of any kind (whether<br \/>\naccrued, absolute, contingent or otherwise) existing on the date hereof except<br \/>\nfor:<\/p>\n<p>          (a)  liabilities (including liabilities for unpaid Taxes) disclosed<br \/>\n               on, reflected in or provided for in the Financial Statements or<br \/>\n               the Interim Financial Statements;<\/p>\n<p>          (b)  liabilities disclosed or referred to in this Agreement, including<br \/>\n               the Exhibits hereto and the Abatis Disclosure Schedule;<\/p>\n<p>          (c)  liabilities incurred in the ordinary course of business and<br \/>\n               attributable to the period since the Financial Year End, none of<br \/>\n               which has a Material Adverse Effect on Abatis;<\/p>\n<p>          (d)  liabilities incurred in connection with this Agreement or the<br \/>\n               transactions contemplated in this Agreement; and<\/p>\n<p>          (e)  amounts outstanding, from time to time, under the letter<br \/>\n               agreement between Abatis and ALCATEL Networks Corporation, dated<br \/>\n               October 28, 1999, which amounts shall not at any time exceed<br \/>\n               $18,000,000 in the aggregate.<\/p>\n<p>3.1.37         CONDITION AND SUFFICIENCY OF ASSETS. All facilities, machinery<br \/>\nand equipment owned or used by Abatis in connection with its business are in<br \/>\ngood operating condition and in a state of good repair and maintenance,<br \/>\nreasonable wear and tear excepted. Abatis owns or leases all of the property and<br \/>\nassets (excluding Intellectual Property, which is dealt with in Section 3.1.39<br \/>\nbelow) used in or necessary for the conduct of its business as it is currently<br \/>\nbeing conducted with good and marketable title to all property and assets which<br \/>\nare owned by Abatis, free and clear of any and all Encumbrances other than as<br \/>\nset forth in the Abatis Disclosure Schedule. Since the incorporation of Abatis<br \/>\nthere has not been any significant interruption of operations, supplies, access<br \/>\nor services by contractors of Abatis&#8217;s business as heretofore carried on due to<br \/>\ninadequate maintenance of any of the property or assets owned and used by<br \/>\nAbatis.<\/p>\n<p>                                       48<\/p>\n<p>With the exception of inventory in transit, and assets which, by their<br \/>\nnature, are portable and intended to be used in different locations (such as<br \/>\nnotebook computers), all of the tangible assets of Abatis are situate at the<br \/>\nlocations specified in the Abatis Disclosure Schedule.<\/p>\n<p>3.1.38         INVENTORIES.  The inventories of Abatis:<\/p>\n<p>          (a)  consist solely of items of tangible personal property of the kind<br \/>\n               and quality regularly used or produced in its business;<\/p>\n<p>          (b)  are saleable or resaleable (or useable) in the ordinary course of<br \/>\n               Abatis&#8217;s business for the purpose for which they were intended;<\/p>\n<p>          (c)  are at a level consistent with the requirements of potential<br \/>\n               customers of the Business, as reasonably anticipated by Abatis;<\/p>\n<p>          (d)  are not obsolete; and<\/p>\n<p>          (e)  have been valued in the Financial Statements in accordance with<br \/>\n               generally accepted accounting principles, on a basis consistent<br \/>\n               with that of past practice.<\/p>\n<p>3.1.39         INTELLECTUAL PROPERTY.<\/p>\n<p>      REPRESENTATIONS WITH RESPECT TO ABATIS MATERIAL INTELLECTUAL PROPERTY<\/p>\n<p>          (a)  The Abatis Disclosure Schedule includes a description of:<\/p>\n<p>               (i)  the Business&#8217;s core Products (including all Software<br \/>\n                    embedded in Products and all stand-alone Software) and core<br \/>\n                    services that are, or are planned to be, manufactured,<br \/>\n                    marketed, sold, licenced, used to provide services to<br \/>\n                    customers or otherwise exploited by the Business<br \/>\n                    (collectively, the &#8220;CORE PRODUCTS AND TECHNOLOGY&#8221;);<\/p>\n<p>               (ii) all Intellectual Property (including, without limitation,<br \/>\n                    Software) that is owned by Abatis or that is used by Abatis<br \/>\n                    under a licence from another Person (together with a<br \/>\n                    description of the applicable license) and is necessary for<br \/>\n                    or used in designing, manufacturing or using the Core<br \/>\n                    Products and Technology or that forms part of or is embedded<br \/>\n                    in the Core Products and Technology.<\/p>\n<p>                                       49<\/p>\n<p>               (iii)all Intellectual Property (including Software) that is owned<br \/>\n                    by Abatis or that is used by Abatis under a licence<br \/>\n                    agreement from another Person which relates to<\/p>\n<p>                    (A)  the conduct of the Business; or<\/p>\n<p>                    (B)  the marketing, distribution, sale, licensing or other<br \/>\n                         exploitation of the Core Products and Technology,<\/p>\n<p>                    the failure to own or to have the right to use would have a<br \/>\n                    Material Adverse Effect; and<\/p>\n<p>               (iv) all Abatis Registered Intellectual Property;<\/p>\n<p>               (collectively, the &#8220;ABATIS MATERIAL INTELLECTUAL PROPERTY&#8221;).<\/p>\n<p>          (b)  The Abatis Material Intellectual Property comprises all<br \/>\n               Intellectual Property that is: (i) necessary to design, develop,<br \/>\n               manufacture or to use the Core Products and Technology; or (ii)<br \/>\n               material to the conduct of the Business, the failure to own or to<br \/>\n               have the right to use would have a Material Adverse Effect.<\/p>\n<p>          (c)  Except as set forth in the Abatis Disclosure Schedule, each item<br \/>\n               of Abatis Material Intellectual Property is solely and<br \/>\n               exclusively owned by Abatis free and clear of any Encumbrances or<br \/>\n               co-ownership interests or is licenced to Abatis under an existing<br \/>\n               written licence agreement that remains in force and which grants<br \/>\n               sufficient rights to permit Abatis to use such Intellectual<br \/>\n               Property in the manner necessary to carry on the Business and to<br \/>\n               design, make and use the Core Products and Technology without<br \/>\n               infringing the Intellectual Property Rights of the third party<br \/>\n               supplier of that Abatis Material Intellectual Property and which<br \/>\n               has been disclosed in the Abatis Disclosure Schedule and copies<br \/>\n               of which have been provided to Redback. None of the Abatis<br \/>\n               Material Intellectual Property consists of freeware, shareware or<br \/>\n               Software provided pursuant to any arrangement other than a<br \/>\n               licence agreement which has been disclosed in the Abatis<br \/>\n               Disclosure Schedule.<\/p>\n<p>          (d)  Abatis owns, solely and exclusively, any copyright that subsists<br \/>\n               in the Abatis Material Intellectual Property other than the<br \/>\n               copyright that subsists in any Third<\/p>\n<p>                                       50<\/p>\n<p>               Party Software or other works, provided that such Third Party<br \/>\n               Software and other works are licenced to Abatis under a written<br \/>\n               licence agreement that is identified in the Abatis Disclosure<br \/>\n               Schedule and which has been provided to Redback, or are in the<br \/>\n               public domain.<\/p>\n<p>          (e)  To the extent that any of the Abatis Material Intellectual<br \/>\n               Property that is licenced by Abatis is incorporated in or<br \/>\n               embedded in the Core Products and Technology, Abatis has complied<br \/>\n               with all of the material terms and conditions contained in the<br \/>\n               licence agreements applicable to such Abatis Material<br \/>\n               Intellectual Property and Abatis has not received notice of and<br \/>\n               is not aware of any material breaches, claims or disputes under<br \/>\n               such agreements. Abatis is not aware of nor has it received<br \/>\n               notice of any breach by any customer or end-user under any<br \/>\n               agreement applicable to the use of the Abatis Material<br \/>\n               Intellectual Property.<\/p>\n<p>          (f)  The Abatis Material Intellectual Property that has been developed<br \/>\n               by or on behalf of Abatis has been created or developed:<\/p>\n<p>               (i)  by employees or former employees of Abatis, all of whom<br \/>\n                    signed employment agreements or other agreements with Abatis<br \/>\n                    whereby they assigned to Abatis all Intellectual Property<br \/>\n                    created by them during the course of their employment and<br \/>\n                    waived their moral rights therein. All such employees work<br \/>\n                    or access to the Abatis Material Intellectual Property<br \/>\n                    occurred within the scope and in the regular course of their<br \/>\n                    employment. To the best of Abatis&#8217;s knowledge, none of its<br \/>\n                    employees conceived or created any portion of the Abatis<br \/>\n                    Material Intellectual Property during their employment with<br \/>\n                    another Person; or<\/p>\n<p>               (ii) by independent contractors or former independent contractors<br \/>\n                    all of whom Abatis has, directly or indirectly, paid for<br \/>\n                    such development or creations, and in respect of which<br \/>\n                    Abatis has an executed written agreement with such Person<br \/>\n                    whereby such Person assigned to Abatis all rights, title and<br \/>\n                    interest in such Intellectual Property and waived their<br \/>\n                    moral rights therein (to the extent applicable).<\/p>\n<p>               All of the agreements referred to subsections (i) and (ii) above<br \/>\n               constitute Material Agreements and have been listed in the Abatis<br \/>\n               Disclosure Schedule and copies thereof have been provided to<br \/>\n               Redback. Abatis has not received any notice of and is not aware<br \/>\n               of any material claims or disputes under such agreements. Except<br \/>\n               as<\/p>\n<p>                                       51<\/p>\n<p>               set out in the Abatis Disclosure Statement there are no royalty<br \/>\n               or other obligations owing to any other Person in respect<br \/>\n               thereof.<\/p>\n<p>          (g)  Except as set forth in the Abatis Disclosure Schedule, Abatis has<br \/>\n               not transferred or assigned ownership of or granted any licence<br \/>\n               or right to any Person to copy, make, use, exploit, or authorize<br \/>\n               the retention of any rights to copy, make, use or exploit any<br \/>\n               Abatis Material Intellectual Property other than to customers<br \/>\n               acquiring a non-exclusive licence to use the Core Products and<br \/>\n               Technology (only in object code version and as end-users) which<br \/>\n               licences are made in the ordinary course of the Business, and to<br \/>\n               independent contractors, suppliers and employees, who are subject<br \/>\n               to written confidentiality and non-disclosure agreements, and who<br \/>\n               are using the Abatis Material Intellectual Property in the course<br \/>\n               of performing services for Abatis. Abatis has not subjected the<br \/>\n               Abatis Material Intellectual Property to any Encumbrance.<\/p>\n<p>          (h)  The Material Agreements set out in the Abatis Disclosure Schedule<br \/>\n               include all contracts, licences and agreements to which Abatis is<br \/>\n               a party with respect to any of the Abatis Material Intellectual<br \/>\n               Property.<\/p>\n<p>          (i)  Each item of Abatis Registered Intellectual Property is, to the<br \/>\n               knowledge of Abatis, valid and subsisting. All necessary<br \/>\n               registration, maintenance, renewal fees, annuity fees and Taxes<br \/>\n               in connection with the Abatis Registered Intellectual Property<br \/>\n               have been paid and all necessary documents and certificates in<br \/>\n               connection with the Abatis Registered Intellectual Property have<br \/>\n               been filed with the relevant patent, copyright, trade-mark or<br \/>\n               other authorities in the jurisdictions in which such Registered<br \/>\n               Intellectual Property is registered, as the case may be, for the<br \/>\n               purposes of maintaining such Registered Intellectual Property.<br \/>\n               Other than the Abatis Registered Intellectual Property, no<br \/>\n               registrations or filings with any Governmental Entity have been<br \/>\n               made by or on behalf of Abatis with respect to the Abatis<br \/>\n               Material Intellectual Property.<\/p>\n<p>          (j)  Except as set forth in the Abatis Disclosure Schedule, no royalty<br \/>\n               or other fee in respect of the Abatis Material Intellectual<br \/>\n               Property is required to be paid by Abatis to any other Person in<br \/>\n               relation to the sale or licensing of any of the Abatis Material<br \/>\n               Intellectual Property. Except as set out in the Abatis Disclosure<br \/>\n               Schedule and the third party supplier licence agreements<br \/>\n               disclosed in the Abatis Disclosure Schedule all of which have<br \/>\n               been provided to Redback, no royalty or<\/p>\n<p>                                       52<\/p>\n<p>               fee in respect of Abatis&#8217;s use of the Abatis Material<br \/>\n               Intellectual Property is required to be paid by Abatis to any<br \/>\n               other Person.<\/p>\n<p>          (k)  Except as set forth in the Abatis Disclosure Schedule, prior to<br \/>\n               the Effective Time, Abatis has not and will not provide, directly<br \/>\n               or indirectly, the source code for any of the Software that is<br \/>\n               included in the Abatis Material Intellectual Property to any<br \/>\n               other Person or by licence, transfer, sale, escrow or otherwise<br \/>\n               permit any other Person to reverse engineer, disassemble or<br \/>\n               decompile any such Software to create such source code.<\/p>\n<p>          (l)  Except as set forth in the Abatis Disclosure Schedule, all Third<br \/>\n               Party Software that is included in the Abatis Material<br \/>\n               Intellectual Property could be reasonably replaced by a suitable<br \/>\n               alternative if the supplier of such Software were to cease<br \/>\n               operations, terminate the applicable license or not provide<br \/>\n               support services. Except as set forth in the Abatis Disclosure<br \/>\n               Schedule, current copies of source code for all Software that is<br \/>\n               included in the Abatis Material Intellectual Property that is<br \/>\n               owned by Abatis has been appropriately recorded on machine<br \/>\n               readable media, clearly identified and stored by Abatis in an<br \/>\n               appropriate secure, fire-proof storage location, physically<br \/>\n               separated from the systems area but within the same premises and<br \/>\n               such source code together with the applicable documentation is<br \/>\n               accurate and contains sufficient detail and content to allow the<br \/>\n               full and proper use for which intended and the understanding,<br \/>\n               modification and correction of the Software by an experienced<br \/>\n               programmer having skills and experience in computer programming<br \/>\n               and being reasonably skilled in the relevant programming<br \/>\n               language(s) and the associated telecommunications technology but<br \/>\n               not being familiar with such Software, without reliance on the<br \/>\n               special knowledge or memory of other Persons. A current and<br \/>\n               accurate list identifying the location of all copies of source<br \/>\n               code for all Software that is included in the Abatis Material<br \/>\n               Intellectual Property that is owned by Abatis is set forth in the<br \/>\n               Abatis Disclosure Schedule. The Abatis Disclosure Schedule<br \/>\n               identifies the written source code escrow agreements that Abatis<br \/>\n               has with the licensors or suppliers of Third Party Software that<br \/>\n               is included in the Abatis Material Intellectual Property and<br \/>\n               copies of such source code escrow agreements have been provided<br \/>\n               to Redback.<\/p>\n<p>          (m)  Abatis owns, or has been granted rights to use (without any<br \/>\n               condition, payment or fee except as set out in the Abatis<br \/>\n               Disclosure Schedule or in any third party supplier licence<br \/>\n               agreement listed therein), the Software that is included in the<br \/>\n               Abatis Material Intellectual Property and, except as set out in<br \/>\n               the Abatis<\/p>\n<p>                                       53<\/p>\n<p>               Disclosure Schedule, the consummation of the transaction<br \/>\n               contemplated herein shall not cause any such rights to be<br \/>\n               amended, modified or terminated.<\/p>\n<p>          (n)  The Core Products and Technology including the Software that is<br \/>\n               included in the Abatis Material Intellectual Property perform and<br \/>\n               function in substantial compliance with the applicable end-user<br \/>\n               documentation and specifications delivered to Redback. Abatis is<br \/>\n               not aware of and has not received notice from any Person that the<br \/>\n               Core Products and Technology or the Software included in the<br \/>\n               Abatis Material Intellectual Property contain material defects in<br \/>\n               design or workmanship.<\/p>\n<p>     GENERAL REPRESENTATIONS WITH RESPECT TO INTELLECTUAL PROPERTY<\/p>\n<p>          (o)  To the knowledge of Abatis, Abatis owns or has the valid right to<br \/>\n               use all trade-marks, service marks, and trade names used by<br \/>\n               Abatis (including those described as Abatis Registered<br \/>\n               Intellectual Property) in connection with the Business including<br \/>\n               the sale of any of the Products or the provision of any services<br \/>\n               or technology related thereto by Abatis.<\/p>\n<p>          (p)  The Abatis Disclosure Schedule sets out all contracts, licences<br \/>\n               and agreements between Abatis and any other Person wherein or<br \/>\n               whereby Abatis has or may have agreed to, or assumed, any<br \/>\n               obligation or duty to warrant, indemnify, reimburse, hold<br \/>\n               harmless, guaranty or otherwise assume or incur any obligation or<br \/>\n               liability or provide a right of rescission with respect to the<br \/>\n               infringement or misappropriation by Abatis or such other Person<br \/>\n               of any intellectual property rights owned by any Person other<br \/>\n               than Abatis (and copies of substantially all of same have been<br \/>\n               provided to Redback) other than any licence of Third Party<br \/>\n               Software that is not part of the Abatis Material Intellectual<br \/>\n               Property and which is granted for software that is generally<br \/>\n               available to the public.<\/p>\n<p>          (q)  To the knowledge of Abatis, the operation of the Business<br \/>\n               including, without limitation, the manufacture, sale, use or<br \/>\n               other exploitation (as applicable) of the Abatis Material<br \/>\n               Intellectual Property and the manufacture, sale, use and other<br \/>\n               exploitation of the Products has not and does not infringe or<br \/>\n               misappropriate the Intellectual Property Rights of any Person,<br \/>\n               violate the rights of any Person (including rights to privacy or<br \/>\n               publicity) or constitute unfair competition or trade practices<br \/>\n               under the Laws of any jurisdiction in which Abatis carries on<br \/>\n               business. Abatis has not received any notice, complaint, or claim<br \/>\n               nor is Abatis aware of any<\/p>\n<p>                                       54<\/p>\n<p>               threat from any Person claiming that the manufacture, sale, use<br \/>\n               or other exploitation of the Abatis Material Intellectual<br \/>\n               Property, the Non-Core Intellectual Property or the manufacture,<br \/>\n               sale, use or other exploitation of the Products infringes or<br \/>\n               misappropriates the Intellectual Property Rights of any other<br \/>\n               Person or constitutes unfair competition or trade practices under<br \/>\n               the Laws of any jurisdiction nor is Abatis aware of any basis<br \/>\n               therefor.<\/p>\n<p>          (r)  All Non-Core Intellectual Property that has been developed or<br \/>\n               created by or for Abatis has been developed or created:<\/p>\n<p>               (i)  by employees or former employees of Abatis, all of whom<br \/>\n                    signed employment agreements or other agreements with Abatis<br \/>\n                    whereby they assigned to Abatis all Intellectual Property<br \/>\n                    created by them during the course of their employment and<br \/>\n                    waived their moral rights therein. All such employees work<br \/>\n                    or access to the such Intellectual Property occurred within<br \/>\n                    the scope and in the regular course of their employment. To<br \/>\n                    the best of Abatis&#8217;s knowledge, none of its employees<br \/>\n                    conceived or created any portion of such Intellectual<br \/>\n                    Property during their employment with another Person; or<\/p>\n<p>               (ii) by independent contractors or former independent contractors<br \/>\n                    all of whom Abatis has, directly or indirectly, paid for<br \/>\n                    such development or creations, and in respect of which<br \/>\n                    Abatis has an executed written agreement with such Person<br \/>\n                    whereby such Person assigned to Abatis all rights, title and<br \/>\n                    interest in such Intellectual Property and waived their<br \/>\n                    moral rights therein (to the extent applicable).<\/p>\n<p>               Abatis has not received any notice of and is not aware of any<br \/>\n               material claims or disputes under such agreements and licences.<\/p>\n<p>          (s)  Abatis has not subjected the Non-Core Intellectual Property to<br \/>\n               any Encumbrance.<\/p>\n<p>          (t)  Abatis has not transferred or assigned ownership of or granted<br \/>\n               any licence or right to any Person to copy, make, use, exploit,<br \/>\n               or authorize the retention of any rights to copy, make, use or<br \/>\n               exploit any Non-Core Intellectual Property other than to<br \/>\n               customers acquiring a non-exclusive licence to use the Products<br \/>\n               (only in object code and as end-users) which licences are made in<br \/>\n               the ordinary course of the Business, and to independent<br \/>\n               contractors and employees, who are subject to<\/p>\n<p>                                       55<\/p>\n<p>               written confidentiality and non-disclosure agreements, and who<br \/>\n               are using the Non-Core Intellectual Property in the course of<br \/>\n               performing services for Abatis.<\/p>\n<p>          (u)  Except as set forth in the Abatis Disclosure Schedule, no Person<br \/>\n               other than Abatis has any ownership rights to any improvements<br \/>\n               made by Abatis in Intellectual Property which has been licenced<br \/>\n               to Abatis.<\/p>\n<p>          (v)  To the best of the knowledge of Abatis, except as set forth in<br \/>\n               the Abatis Disclosure Schedule, there are no contracts, licences<br \/>\n               or agreements between Abatis and any other Person with respect to<br \/>\n               Abatis Material Intellectual Property or Non-Core Intellectual<br \/>\n               Property under which there is any material dispute known to<br \/>\n               Abatis regarding the scope of such contract, licence or<br \/>\n               agreement, or performance under such contract, licence or<br \/>\n               agreement, including with respect to any payments to be made or<br \/>\n               received by Abatis thereunder.<\/p>\n<p>          (w)  To the best of Abatis&#8217;s knowledge, no Person is infringing or<br \/>\n               misappropriating any Abatis Material Intellectual Property or<br \/>\n               Non-Core Intellectual Property provided that in the case of Third<br \/>\n               Party Software and Non-Core Intellectual Property Abatis<br \/>\n               represents only that it has not received notice of and is not<br \/>\n               actually aware of any claims or threatened claims that such Third<br \/>\n               Party Software or Non-Core Intellectual Property is being<br \/>\n               infringed or has been misappropriated. Subject to the foregoing<br \/>\n               proviso, Abatis has no knowledge of any past infringement or<br \/>\n               misappropriation of any Abatis Material Intellectual Property or<br \/>\n               any Non-Core Intellectual Property.<\/p>\n<p>          (x)  Abatis has taken commercially reasonable steps to protect and<br \/>\n               maintain the confidentiality of the trade secrets and other<br \/>\n               confidential information in the Abatis Material Intellectual<br \/>\n               Property and the Non-Core Intellectual Property and in any<br \/>\n               Intellectual Property provided by any other Person to Abatis.<br \/>\n               Without limiting the generality of the foregoing, each employee,<br \/>\n               consultant and contractor of Abatis has executed and delivered to<br \/>\n               Abatis a proprietary information, confidentiality and assignment<br \/>\n               agreement substantially in the form(s) provided to Redback. To<br \/>\n               the best of Abatis&#8217;s knowledge, none of the Abatis Material<br \/>\n               Intellectual Property or the Non-Core Intellectual Property has<br \/>\n               been copied, published, released or distributed to any Person or<br \/>\n               removed from Abatis&#8217;s premises, except by employees and<br \/>\n               independent contractors who are subject to a written<br \/>\n               confidentiality and non-disclosure agreement and who are acting<br \/>\n               in the scope of their employment or engagement, or to customers<br \/>\n               acquiring Products (as<\/p>\n<p>                                       56<\/p>\n<p>               end-users) in the ordinary course of the Business (and under<br \/>\n               written obligations of confidentiality and non-disclosure) and<br \/>\n               only to such other Persons as necessary for the development or<br \/>\n               exploitation of such Intellectual Property and who have executed<br \/>\n               in favour of Abatis written agreements containing obligations of<br \/>\n               confidentiality with respect thereto.<\/p>\n<p>          (y)  To the best of Abatis&#8217;s knowledge, none of the Abatis Material<br \/>\n               Intellectual Property or the Non-Core Intellectual Property is<br \/>\n               subject to any actions or proceedings (whether pending or<br \/>\n               threatened) or any outstanding decree, order or judgment that<br \/>\n               restricts in any manner the use, transfer or licencing thereof by<br \/>\n               Abatis or that may affect the validity, use or enforceability of<br \/>\n               the same, provided that in the case of Third Party Software<br \/>\n               Abatis represents only that it has not received notice of, and is<br \/>\n               not actually aware of any such proceeding, outstanding decree,<br \/>\n               order or judgment.<\/p>\n<p>3.1.40         INFORMATION TECHNOLOGY.<\/p>\n<p>          (a)  The computer systems of Abatis contain, at a minimum, North<br \/>\n               American industry standard anti-virus software and Abatis will<br \/>\n               continue to take steps and implement procedures in accordance<br \/>\n               with industry standards to, so far as reasonably possible, ensure<br \/>\n               that such systems are free from viruses and will remain so until<br \/>\n               the Effective Time.<\/p>\n<p>          (b)  Subject to Subsection (c) below, the Core Products and Technology<br \/>\n               and the Software included in the Abatis Material Intellectual<br \/>\n               Property are free of any disabling codes or instructions (in this<br \/>\n               Section, a &#8220;DISABLING CODE&#8221;), and any virus or other contaminant<br \/>\n               (in this Section, a &#8220;CONTAMINANT&#8221;), that may, or may be used to,<br \/>\n               access, modify, delete, damage, disable, interrupt, interfere<br \/>\n               with or hinder the operation of such Software, the Core Products<br \/>\n               and Technology or any system that operates the same.<\/p>\n<p>          (c)  Third Party Software and other components supplied by third<br \/>\n               parties to Abatis and which are included in the Abatis Material<br \/>\n               Intellectual Property are, to the knowledge of Abatis, free of<br \/>\n               any Disabling Codes or Contaminants that may, or may be used to,<br \/>\n               access, modify, delete, damage, disable, interrupt, interfere<br \/>\n               with or hinder the operation of such Software, the Core Products<br \/>\n               and Technology or any system that operates the same.<\/p>\n<p>                                       57<\/p>\n<p>          (d)  Abatis has taken reasonable steps and implemented reasonable<br \/>\n               procedures to ensure that its internal operating business systems<br \/>\n               are free from Disabling Codes and Contaminants.<\/p>\n<p>          (e)  Abatis has in place the disaster recovery plans, procedures and<br \/>\n               facilities set out in the Abatis Disclosure Schedule and has<br \/>\n               taken commercially reasonable steps to safeguard Abatis&#8217;s<br \/>\n               internal operating systems and to restrict unauthorized access<br \/>\n               thereto. Abatis believes that such plans, procedures, facilities<br \/>\n               and steps are adequate given the size and nature of Abatis and<br \/>\n               the Business.<\/p>\n<p>3.1.41         COMMITMENTS FOR PURCHASES OR SALES AT LOSSES. Abatis does not<br \/>\nhave any agreement, contract or commitment for purchases or sales of its<br \/>\nProducts, technology or services at prices involving material prospective<br \/>\nlosses.<\/p>\n<p>3.1.42         SIGNIFICANT CUSTOMERS. The Abatis Disclosure Schedule sets forth<br \/>\na list of all customers for the Products and services of Abatis.<\/p>\n<p>3.1.43         SIGNIFICANT SUPPLIERS. Except as set out in the Abatis Disclosure<br \/>\nSchedule and subject to the qualification set out in Section 3.1.39(l), none of<br \/>\nthe suppliers of Abatis is a sole supplier and the products and services<br \/>\nprovided by each such supplier are available from other suppliers.<\/p>\n<p>3.1.44         GOVERNMENT PROGRAMS. Except as set out in the Abatis Disclosure<br \/>\nSchedule, no agreements, loans, funding arrangements or assistance programs are<br \/>\noutstanding in favour of Abatis from any Governmental Entity, and, to the<br \/>\nknowledge of Abatis, no basis exists for any Governmental Entity to seek payment<br \/>\nor repayment from Abatis of any amount or benefit received, or to seek<br \/>\nperformance of any obligation of Abatis, under any such program.<\/p>\n<p>3.1.45         PRODUCT LIABILITY. The Abatis Disclosure Schedule identifies,<br \/>\nand Abatis has provided copies to Redback of, all contracts in which warranties<br \/>\nare made by Abatis to any Person acquiring its Products, technology or services.<br \/>\nThere is no existing claim, lawsuit, recall or proceeding against Abatis, or to<br \/>\nthe knowledge of Abatis, threatened or anticipated claim, lawsuit, recall or<br \/>\nproceeding against Abatis, with respect to the performance of, defects under, or<br \/>\nbreach of, any express or implied warranty for any Product or service sold by<br \/>\nAbatis prior to the date hereof.<\/p>\n<p>3.1.46         GST REGISTRATION. Abatis is a registrant for the purposes of the<br \/>\nEXCISE TAX ACT (Canada).<\/p>\n<p>                                       58<\/p>\n<p>3.1.47         ADVISORY FEES. Except as set forth in the Abatis Disclosure<br \/>\nSchedule, and except for the accountants and lawyers of Abatis retained to<br \/>\nnegotiate, advance, carry out and complete the transactions contemplated herein,<br \/>\nthere is no investment banker, broker, finder or other intermediary or advisor<br \/>\nthat has been retained by or is authorized to act on behalf of Abatis or any of<br \/>\nits directors, officers or shareholders who might be entitled to any fee,<br \/>\ncommission or reimbursement of expenses from Abatis upon consummation of the<br \/>\ntransactions contemplated by this Agreement.<\/p>\n<p>3.1.48         OTHER NEGOTIATIONS; BROKERS; THIRD PARTY EXPENSES. None of<br \/>\nAbatis or, to the knowledge of Abatis, any of its directors, officers or<br \/>\nshareholders (nor any investment banker, financial advisor, attorney, accountant<br \/>\nor other Person retained by or acting for or on behalf of Abatis or at Abatis&#8217;s<br \/>\ndirection) (a) has entered into any agreement that conflicts with any of the<br \/>\ntransactions contemplated by this Agreement (except the Shareholders&#8217; Agreement,<br \/>\nwhich the parties thereto have agreed to terminate as of the Effective Time and<br \/>\nin respect of which all consents required under such agreement in respect of<br \/>\nthis Agreement and the transactions contemplated herein have been obtained), or<br \/>\n(b) except as set forth in the Abatis Disclosure Schedule or referred to in<br \/>\nSection 8.7, has entered into any agreement or had any discussions with any<br \/>\nPerson regarding any transaction involving Abatis which could reasonably be<br \/>\nexpected to result in any of the Redback Parties, Abatis or any of the officers,<br \/>\ndirectors, employees, agents or shareholders of any of them being subject to any<br \/>\nclaim for liability to such Person as a result of entering into this Agreement<br \/>\nor consummating the transactions contemplated hereby. The Abatis Disclosure<br \/>\nSchedule sets forth the principal terms and conditions of any agreement (other<br \/>\nthan any agreement with any of the Redback Parties or any of their respective<br \/>\naffiliates) with respect to, and a reasonable estimate of, all Third Party<br \/>\nExpenses which are reasonably expected to be incurred by Abatis in connection<br \/>\nwith the negotiation and implementation of the terms and conditions of this<br \/>\nAgreement and the transactions contemplated hereby.<\/p>\n<p>3.1.49         This section intentionally deleted.<\/p>\n<p>3.1.50         DISCLOSURE. As of the date hereof, the representations and<br \/>\nwarranties of Abatis contained in this Agreement and in any agreement,<br \/>\ncertificate, affidavit, statutory declaration or other document delivered or<br \/>\ngiven pursuant to this Agreement, including the Abatis Disclosure Schedule, are<br \/>\ntrue and correct in all material respects and do not contain any untrue<br \/>\nstatement of a material fact or omit to state a material fact necessary to make<br \/>\nthe statements contained in such representations and warranties not misleading<br \/>\nto the Redback Parties.<\/p>\n<p>                                       59<\/p>\n<p>3.1.51            APPROVAL OF ARRANGEMENT.<\/p>\n<p>         (a)      The board of directors of Abatis has determined unanimously:<\/p>\n<p>                  (i)      that the Arrangement is fair to and in the best<br \/>\n                           interests of the Abatis Shareholders and the Abatis<br \/>\n                           Optionholders and is in the best interests of Abatis;<br \/>\n                           and<\/p>\n<p>                  (ii)     to recommend that the Abatis Shareholders and the<br \/>\n                           Abatis Optionholders vote in favour of the<br \/>\n                           Arrangement.<\/p>\n<p>         (b)      All of Abatis&#8217;s directors have advised Abatis that they intend<br \/>\n                  to vote the Abatis Shares and Abatis Options held by them in<br \/>\n                  favour of the Arrangement and will, accordingly, so represent<br \/>\n                  in the Circular.<\/p>\n<p>3.1.52            Agreements with Certain Shareholders. Abatis has entered into<br \/>\nagreements with ALCATEL Networks Corporation providing for the termination of<br \/>\nthe Newbridge Services Agreement between Abatis and Newbridge Networks<br \/>\nCorporation dated as of September 4, 1998 and the repayment of the aggregate<br \/>\nindebtedness owed by Abatis to ALCATEL Networks Corporation under the letter<br \/>\nagreement between such parties dated October 28, 1999, both as of the Effective<br \/>\nDate, copies of which are attached to the Abatis Disclosure Schedule, and each<br \/>\nsuch agreement is a legal valid and binding, both as of the Effective Date,<br \/>\nobligation of Abatis, in full force and effect, unamended. Abatis has entered<br \/>\ninto a Supplementary Conveyance Agreement with 3494365 Canada Inc. dated as of<br \/>\nNovember 30, 1999 providing for the transfer of certain technology to Abatis, a<br \/>\ncopy of which is attached to the Abatis Disclosure Schedule, and such agreement<br \/>\nis a legal, valid and binding obligation of Abatis in full force and effect,<br \/>\nunamended.<\/p>\n<p>3.2               REPRESENTATIONS AND WARRANTIES OF REDBACK. Redback represents<br \/>\nand warrants to and in favour of Abatis as follows and acknowledges that Abatis<br \/>\nis relying upon such representations and warranties in connection with the<br \/>\nmatters contemplated by this Agreement:<\/p>\n<p>3.2.1             INCORPORATION AND ORGANIZATION. Each of the Redback Parties<br \/>\nand Newco has been duly incorporated or formed under the laws of its<br \/>\njurisdiction of incorporation, is validly subsisting, has full corporate or<br \/>\nlegal power and authority to own, lease and operate the properties currently<br \/>\nowned, leased and operated by it and conduct its businesses as currently<br \/>\nconducted, and is in good standing with the appropriate Governmental Entity in<br \/>\nits jurisdiction of incorporation with respect to the filing of annual returns<br \/>\nor equivalent documents. Each of the<\/p>\n<p>                                       60<\/p>\n<p>Redback Parties is duly qualified or licenced to do business and is in good<br \/>\nstanding as a foreign corporation or organization authorized to do business in<br \/>\nall jurisdictions in which the character of the properties owned, leased or<br \/>\noperated or the nature of the business conducted by it would make such<br \/>\nqualification or licencing necessary. No proceedings have been instituted or are<br \/>\npending for the dissolution or liquidation of any of the Redback Parties or<br \/>\nNewco.<\/p>\n<p>3.2.2             CAPITALIZATION. The authorized capital of Redback consists of<br \/>\n750,000,000 Redback Common Shares and 10,000,000 shares of preferred stock,<br \/>\nhaving a par value of $0.0001 each, of which, as of June 30, 2000, 148,618,192<br \/>\nRedback Common Shares and no shares of preferred stock are issued and<br \/>\noutstanding. Except for (a) $500 million aggregate principal amount of 5%<br \/>\nConvertible Subordinated Notes due April 1, 2007 (the &#8220;CONVERTIBLE NOTES&#8221;), (b)<br \/>\nwarrants to purchase 692,472 Redback Common Shares, and (c) employee stock<br \/>\noptions granted by Redback pursuant to employment compensation plans, there are<br \/>\nno options, warrants, conversion privileges or other rights, agreements,<br \/>\narrangements or commitments (contingent or otherwise) obligating Redback to<br \/>\nissue or sell any shares or securities or obligations of any kind convertible<br \/>\ninto or exchangeable for any shares of Redback. No Redback Common Shares and no<br \/>\nshares of preferred stock of Redback are held in treasury or authorized or<br \/>\nreserved for issuance, other than upon the exercise of the warrants and options<br \/>\nreferred to above. All outstanding Redback Common Shares have been duly<br \/>\nauthorized and are validly issued and outstanding as fully paid and<br \/>\nnon-assessable shares. Other than the Convertible Notes, there are no<br \/>\noutstanding bonds, debentures or other evidences of indebtedness of Redback or<br \/>\nExchangeco having the right to vote (or that are convertible for or exercisable<br \/>\ninto securities having the right to vote) with the holders of the Redback Common<br \/>\nShares on any matter. As of the Effective Date, all of the Replacement Options<br \/>\nwill be outstanding as duly authorized and validly existing options to acquire<br \/>\nRedback Common Shares, which will not be issued in violation of the terms of any<br \/>\nagreement or other understanding binding upon Redback at the time at which they<br \/>\nare issued and will be issued in compliance with the constating documents of<br \/>\nRedback and all applicable Laws and, upon exercise in accordance with the terms<br \/>\nand conditions of such Replacement Options and payment of the exercise price<br \/>\ntherefor, will result in the issuance of Redback Common Shares which will be<br \/>\nduly authorized and validly issued, which are fully paid and non-assessable and<br \/>\nwhich will not be issued in violation of the terms of any agreement or other<br \/>\nunderstanding binding upon Redback at the time at which they are issued and will<br \/>\nbe issued in compliance with the constating documents of Redback and all<br \/>\napplicable Laws.<\/p>\n<p>3.2.3             AUTHORITY AND NO VIOLATION.<\/p>\n<p>         (a)      Each of the Redback Parties and Newco has all requisite<br \/>\n                  corporate power and authority to enter into this Agreement and<br \/>\n                  each of the Ancillary Agreements, as <\/p>\n<p>                                       61<\/p>\n<p>                  applicable, to perform its obligations hereunder and<br \/>\n                  thereunder, and to consummate the Arrangement and the other<br \/>\n                  transactions contemplated by this Agreement. The execution and<br \/>\n                  delivery of this Agreement and each of the Ancillary<br \/>\n                  Agreements, as applicable, by each of the Redback Parties and<br \/>\n                  Newco and the consummation by each of the Redback Parties and<br \/>\n                  Newco of the transactions contemplated by this Agreement and<br \/>\n                  each of the Ancillary Agreements, as applicable, have been<br \/>\n                  duly authorized by its respective board of directors and no<br \/>\n                  other corporate proceedings on its part are necessary to<br \/>\n                  authorize this Agreement and each of the Ancillary Agreements,<br \/>\n                  as applicable, or the transactions contemplated hereby or<br \/>\n                  thereby other than the approval by its board of directors of,<br \/>\n                  in the case of Exchangeco, the amendment of its memorandum and<br \/>\n                  articles to create the Exchangeable Shares (which amendment<br \/>\n                  must also be approved by the shareholders of Exchangeco) and,<br \/>\n                  in the case of Redback, other matters (if any) relating solely<br \/>\n                  to the implementation of the Arrangement.<\/p>\n<p>         (b)      This Agreement has been duly executed and delivered by each of<br \/>\n                  the Redback Parties and constitutes a legal, valid and binding<br \/>\n                  obligation, enforceable against it in accordance with its<br \/>\n                  terms, subject to bankruptcy, insolvency and other similar<br \/>\n                  Laws affecting creditors&#8217; rights generally, and to general<br \/>\n                  principles of equity. Each of the Ancillary Agreements, as<br \/>\n                  applicable, will be duly executed and delivered by each of the<br \/>\n                  Redback Parties and Newco, as applicable, and, when so<br \/>\n                  executed and delivered, will constitute a legal, valid and<br \/>\n                  binding obligation, enforceable against it in accordance with<br \/>\n                  its terms, subject to bankruptcy, insolvency and other similar<br \/>\n                  Laws affecting creditors&#8217; rights generally, and to general<br \/>\n                  principles of equity.<\/p>\n<p>         (c)      The approval of this Agreement and each of the Ancillary<br \/>\n                  Agreements, as applicable, the execution and delivery by each<br \/>\n                  of the Redback Parties and Newco of this Agreement and each of<br \/>\n                  the Ancillary Agreements, as applicable, and the performance<br \/>\n                  by it of its obligations hereunder and thereunder and the<br \/>\n                  completion of the Arrangement and the transactions<br \/>\n                  contemplated thereby, will not:<\/p>\n<p>                  (i)      conflict with, result in a violation or breach of,<br \/>\n                           require any consent to be obtained under or give rise<br \/>\n                           to any termination rights or payment obligation under<br \/>\n                           any provision of:<\/p>\n<p>                           (A)      its certificate of incorporation,<br \/>\n                                    memorandum, articles, by-laws or other<br \/>\n                                    charter documents, as applicable, including<br \/>\n                                    any unanimous <\/p>\n<p>                                       62<\/p>\n<p>                                    shareholder agreement or any other agreement<br \/>\n                                    or understanding with any Person holding an<br \/>\n                                    ownership interest in it;<\/p>\n<p>                           (B)      subject to obtaining the Appropriate<br \/>\n                                    Regulatory Approvals relating to the Redback<br \/>\n                                    Parties or the transactions contemplated<br \/>\n                                    herein, any Laws, regulation, order,<br \/>\n                                    judgment or decree; or<\/p>\n<p>                           (C)      any material contract,  agreement, licence,<br \/>\n                                    franchise or permit to which it is party or<br \/>\n                                    by which it is bound;<\/p>\n<p>                  (ii)     give rise to any right of termination or acceleration<br \/>\n                           of indebtedness, or cause any third party<br \/>\n                           indebtedness to come due before its stated maturity<br \/>\n                           or cause any available credit to cease to be<br \/>\n                           available; or<\/p>\n<p>                  (iii)    except as would not, individually or in the<br \/>\n                           aggregate, have a Material Adverse Effect on the<br \/>\n                           Redback Parties and Newco, as a whole, result in the<br \/>\n                           imposition of any Encumbrance upon any of its assets,<br \/>\n                           or restrict, hinder, impair or limit its ability to<br \/>\n                           carry on its business as and where it is now being<br \/>\n                           carried on or as and where it may be carried on in<br \/>\n                           the future.<\/p>\n<p>         (d)      No consent, approval, order or authorization of, or<br \/>\n                  registration, declaration or filing with, any Governmental<br \/>\n                  Entity or other Person is required to be obtained by any of<br \/>\n                  the Redback Parties or Newco in connection with the execution<br \/>\n                  and delivery of this Agreement or any of the Ancillary<br \/>\n                  Agreements, as applicable, or the consummation by any of the<br \/>\n                  Redback Parties or Newco of the transactions contemplated<br \/>\n                  hereby or thereby other than:<\/p>\n<p>                  (i)      the Appropriate  Regulatory  Approvals  relating to<br \/>\n                           the Redback Parties or the transactions contemplated<br \/>\n                           herein;<\/p>\n<p>                  (ii)     any approval  required in  connection  with the<br \/>\n                           amendment of the memorandum or articles of Exchangeco<br \/>\n                           to create the Exchangeable Shares; and<\/p>\n<p>                  (iii)    any other consents, approvals, orders,<br \/>\n                           authorizations, declarations or filings of or with a<br \/>\n                           Governmental Entity which, if not obtained, would not<br \/>\n                           in the aggregate have a Material Adverse Effect on<br \/>\n                           the Redback Parties and Newco, as a whole.<\/p>\n<p>                                       63<\/p>\n<p>3.2.4             NO DEFAULTS. Subject to obtaining the Appropriate Regulatory<br \/>\nApprovals relating to Redback, Redback is not in default under, and there exists<br \/>\nno event, condition or occurrence which, after notice or lapse of time or both,<br \/>\nwould constitute such a default under, any contract, agreement, licence or<br \/>\nfranchise to which it is a party which would, if terminated due to such default,<br \/>\ncause a Material Adverse Effect on Redback.<\/p>\n<p>3.2.5             OWNERSHIP OF EXCHANGECO AND NEWCO AND BUSINESS OF EXCHANGECO.<br \/>\nAll of the outstanding shares of capital stock of each of Exchangeco and Newco<br \/>\nare validly issued, fully paid and non-assessable and all such shares and other<br \/>\nownership interests are owned directly or indirectly by Redback, free and clear<br \/>\nof all material liens, claims or encumbrances, and there are no outstanding<br \/>\noptions, rights, entitlements, understandings or commitments (pre-emptive,<br \/>\ncontingent or otherwise) regarding the right to acquire any such shares of<br \/>\ncapital stock or other ownership interests in Exchangeco or Newco. Exchangeco<br \/>\ncarries on no business and has not been and is not used for any purpose other<br \/>\nthan to carry out this Agreement and the transactions contemplated herein.<\/p>\n<p>3.2.6             ABSENCE OF CERTAIN CHANGES OR EVENTS. Except as disclosed in<br \/>\npublicly available reports filed by Redback with the SEC prior to the date of<br \/>\nthis Agreement, since December 31, 1999 (and July 10, 2000 in the case of<br \/>\nExchangeco), each of the Redback Parties has conducted its business only in the<br \/>\nordinary course of business and there has not occurred:<\/p>\n<p>         (a)      any Material Adverse Change in respect of the Redback Parties;<br \/>\n                  or<\/p>\n<p>         (b)      any agreement or arrangement to take any action which, if<br \/>\n                  taken prior to the date hereof, would have made any<br \/>\n                  representation or warranty set forth in this Agreement<br \/>\n                  materially untrue or incorrect as of the date when made.<\/p>\n<p>3.2.7             DISCLOSURE. Redback has publicly disclosed in documents filed<br \/>\nwith the SEC, any information regarding any event, circumstance or action taken<br \/>\nor failed to be taken which could individually or in the aggregate reasonably be<br \/>\nexpected to have a Material Adverse Effect on the Redback Parties.<\/p>\n<p>3.2.8             SEC DOCUMENTS; REDBACK FINANCIAL STATEMENTS. Redback has<br \/>\nfurnished or made available to Abatis or its counsel true and complete copies of<br \/>\nall SEC Documents filed by it with the SEC, all in the form so filed. As of<br \/>\ntheir respective filing dates, such SEC Documents filed by Redback complied in<br \/>\nall material respects with the requirements of the Securities Act and the<br \/>\nExchange Act, as the case may be, and none of the SEC Documents contained any<br \/>\nuntrue <\/p>\n<p>                                       64<\/p>\n<p>statement of a material fact or omitted to state a material fact required to be<br \/>\nstated therein or necessary to make the statements made therein, in light of the<br \/>\ncircumstances in which they were made, not misleading, except to the extent such<br \/>\nSEC Documents have been corrected, updated or superseded by a document<br \/>\nsubsequently filed with the SEC. The financial statements of Redback, including<br \/>\nthe notes thereto, included in the SEC Documents comply as to form in all<br \/>\nmaterial respects with the published rules and regulations of the SEC with<br \/>\nrespect thereto, have been prepared in accordance with United States generally<br \/>\naccepted accounting principles consistently applied (except as may be indicated<br \/>\nin the notes thereto or, in the case of unaudited statements, as permitted by<br \/>\nForm 10-Q under the Exchange Act) and present fairly the consolidated financial<br \/>\nposition of Redback at the dates thereof and the consolidated results of its<br \/>\noperations and cash flows for the periods then ended (subject, in the case of<br \/>\nunaudited financial statements, to normal year-end adjustments).<\/p>\n<p>3.2.9             EXCHANGEABLE SHARES. The Exchangeable Shares to be issued in<br \/>\nconnection with the Arrangement will be duly and validly issued by Exchangeco as<br \/>\nfully paid and non-assessable shares on the Effective Date, and will not be<br \/>\nissued in violation of the terms of any agreement or other understanding binding<br \/>\nupon Exchangeco at the time that such shares are issued and will be issued in<br \/>\ncompliance with the memorandum and articles of Exchangeco and all applicable<br \/>\nLaws. Other than rights under Section 41 of the Company Act, which rights will<br \/>\nbe waived with respect to the Exchangeable Shares prior to the Effective Time,<br \/>\nthere are, and will at the Effective Time be, no preemptive or other rights<br \/>\nrelating to the allotment or issuance of Exchangeable Shares in connection with<br \/>\nthe Arrangement and the transactions contemplated herein.<\/p>\n<p>3.2.10            REDBACK COMMON SHARES. The Redback Common Shares to be issued<br \/>\npursuant to the Arrangement or upon the exchange from time to time of the<br \/>\nExchangeable Shares or upon the exercise from time to time of the Replacement<br \/>\nOptions will, when issued and delivered in accordance with the terms of this<br \/>\nAgreement, be duly and validly issued by Redback on their respective dates of<br \/>\nissue as fully paid and non-assessable shares and will not be issued in<br \/>\nviolation of the terms of any agreement or other understanding binding upon<br \/>\nRedback at the time that such shares are issued and will be issued in compliance<br \/>\nwith the constating documents of Redback and all applicable Laws.<\/p>\n<p>3.2.11            OTHER TRANSACTIONS. Redback is not aware of any transaction or<br \/>\nproposed transaction involving Redback which, if it were to be consummated on or<br \/>\nprior to the Effective Date, would constitute a Redback Control Transaction,<br \/>\nExchangeable Share Voting Event or Exempt Share Voting Event (as each of such<br \/>\nterms is defined in the Share Provisions).<\/p>\n<p>                                       65<\/p>\n<p>3.2.12            EXEMPT INTEREST. The principal business of Redback is not an<br \/>\n&#8220;investment business&#8221;, as defined for purposes of clause (b)(ii)(A) of the<br \/>\ndefinition of &#8220;exempt interest&#8221; in proposed subsection 94.1(1) of the INCOME TAX<br \/>\nACT (Canada) as set out in the draft legislation regarding the taxation of<br \/>\nnon-resident trusts and foreign investment entities released by the Department<br \/>\nof Finance of Canada on June 22, 2000 as amended from time to time or as enacted<br \/>\nand in effect from time to time (an &#8220;INVESTMENT BUSINESS&#8221;).<\/p>\n<p>3.3               NON-WAIVER. No investigations made by or on behalf of any of<br \/>\nthe parties at any time shall have the effect of waiving, diminishing the scope<br \/>\nof or otherwise affecting any representation or warranty made by any other party<br \/>\nherein or pursuant hereto, unless disclosure of the fact at issue is expressly<br \/>\nmade in writing to the other party prior to the execution hereof and such<br \/>\ndisclosure contains no material untrue statement.<\/p>\n<p>3.4               SURVIVAL. For greater certainty, the representations and<br \/>\nwarranties of Abatis and each Redback Party contained herein shall survive the<br \/>\nexecution and delivery of this Agreement and shall terminate on the earlier of<br \/>\nthe termination of this Agreement in accordance with its terms and the<br \/>\nExpiration Date.<\/p>\n<p>4.0               ESCROW PROVISIONS<\/p>\n<p>4.1               ESTABLISHMENT OF THE ESCROW FUND. At or promptly after the<br \/>\nEffective Time, Exchangeco and Redback will deposit, or cause to be deposited,<br \/>\nwithout any act or formality on the part of the Abatis Shareholders, the Escrow<br \/>\nSecurities in escrow with the Escrow Agent (such shares, together with any other<br \/>\nproperty held by the Escrow Agent from time to time under the Escrow Agreement,<br \/>\nbeing herein referred to as the &#8220;ESCROW FUND&#8221;), which shall be governed by the<br \/>\nterms set out in the Escrow Agreement. The number of Escrow Securities to be<br \/>\ncontributed by or on behalf of each Abatis Shareholder shall be equal to 10% of<br \/>\neach of the Redback Common Shares and Exchangeable Shares to be issued to such<br \/>\nholder at the Effective Time pursuant to the Plan of Arrangement.<\/p>\n<p>4.2               RECOURSE TO THE ESCROW FUND. The Escrow Fund shall be<br \/>\navailable to indemnify the Redback Parties, Newco and their respective officers,<br \/>\ndirectors, employees or agents, for any and all Losses (as defined in the Escrow<br \/>\nAgreement) incurred or sustained, directly or indirectly, by any of them. The<br \/>\nEscrow Fund shall be applied against the Losses in the manner set out in the<br \/>\nEscrow Agreement by applying Redback Common Shares and Exchangeable Shares in<br \/>\nthe same ratio as the ratio of Redback Common Shares to Exchangeable Shares<br \/>\ncontributed to the Escrow Fund pursuant to Section 4.1. Other than for fraud,<br \/>\nthe provisions of this Section 4.0 shall be the sole and exclusive remedy<br \/>\navailable to the Redback Parties, Newco and their officers, directors, employees<br \/>\nand agents to obtain recovery from the Abatis Shareholders with <\/p>\n<p>                                       66<\/p>\n<p>respect to any Losses and no such party shall have recourse against the Abatis<br \/>\nShareholders under this Agreement for any other Losses. Except for liability for<br \/>\nfraud and the liability of a Abatis Shareholder with respect to the loss of his<br \/>\nDeposited Shares (as defined in the Plan of Arrangement), and his share of any<br \/>\nother property included in the Escrow Fund, in satisfaction of Losses in<br \/>\naccordance with this Section 4.0 and the terms of the Escrow Agreement, no<br \/>\nAbatis Shareholder shall have any liability to the Redback Parties, Newco or any<br \/>\nof their respective officers, directors, stockholders, employees or agents for<br \/>\nor in respect of any Losses or any other liabilities arising out of this<br \/>\nAgreement or the transactions or agreements contemplated herein.<\/p>\n<p>4.3               ESCROW PERIOD; DISTRIBUTION OF ESCROW FUND UPON TERMINATION OF<br \/>\nESCROW PERIOD. The Escrow Fund shall be established at or promptly following the<br \/>\nEffective Time and shall be held by the Escrow Agent until 5:00 p.m. (Pacific<br \/>\nTime) on the Expiration Date; provided that such portion of the Escrow Fund<br \/>\n(consisting of a ratio of Redback Common Shares to Exchangeable Shares equal to<br \/>\nthe ratio of Redback Common Shares to Exchangeable Shares contributed to the<br \/>\nEscrow Fund pursuant to Section 4.1) which, in the opinion of Redback, acting<br \/>\nreasonably, is necessary to satisfy any claims made to the Escrow Agent in the<br \/>\nmanner provided in the Escrow Agreement prior to the Expiration Date shall<br \/>\nremain in the Escrow Fund until such claims have been resolved. The portion of<br \/>\nthe Escrow Fund which is not required to satisfy such claims shall, as soon as<br \/>\npracticable after the Expiration Date, be delivered by the Escrow Agent to the<br \/>\nPersons who contributed the Escrow Securities to the Escrow Fund ratably in<br \/>\nproportion to their respective contributions thereto and IN SPECIE according to<br \/>\nthe nature of the Escrow Securities contributed by each such Person.<\/p>\n<p>4.4               MINIMUM THRESHOLD. The Redback Parties, Newco and their<br \/>\nrespective officers, directors, employees or agents shall not be entitled to<br \/>\nreceive any Escrow Securities or other property comprising the Escrow Fund, and<br \/>\nshall not otherwise be entitled to any indemnification under the Escrow<br \/>\nAgreement, unless and until one or more of them have made claims for<br \/>\nindemnification in the manner provided in the Escrow Agreement specifying Losses<br \/>\nin an aggregate amount of not less than $250,000, in which case such Persons<br \/>\nshall be entitled to be indemnified out of the Escrow Fund in the manner<br \/>\nprovided in the Escrow Agreement for the full amount of any and all Losses,<br \/>\nincluding the initial Losses up to such $250,000 threshold.<\/p>\n<p>5.0               COVENANTS<br \/>\n5.1               RETENTION OF GOODWILL. During the Pre-Effective Date Period,<br \/>\nAbatis will, subject to the fact that the Arrangement and related transactions<br \/>\nare contemplated hereby, continue to carry on the business of Abatis in the<br \/>\nordinary course of business, working to preserve the attendant goodwill of<br \/>\nAbatis and to contribute to retention of that goodwill to and after the<br \/>\nEffective Date, but subject to the following provisions of this Section 5.0. The<\/p>\n<p>                                       67<\/p>\n<p>following provisions of this Section 5.0 are intended to be in furtherance of<br \/>\nthis general commitment, subject to the fact that the Arrangement and related<br \/>\ntransactions are contemplated hereby.<\/p>\n<p>5.2               MATERIAL COMMITMENTS. During the Pre-Effective Date Period,<br \/>\nAbatis will consult on an ongoing basis with senior officers of Redback in order<br \/>\nthat the representatives of Redback will become more familiar with the<br \/>\nphilosophy and techniques of Abatis, as well as with its business and financial<br \/>\naffairs and in order to provide experience as a basis for ongoing relationships<br \/>\nafter the Effective Date. These consultations will include matters involving any<br \/>\ncommitments, arrangements or transactions proposed to be entered into by Abatis<br \/>\nthat would give rise to a material liability or commitment of any kind. Abatis<br \/>\nand Redback will develop procedures such that these consultations will be<br \/>\ncarried out quickly and effectively without detracting from the ability of<br \/>\nAbatis to arrive at decisions in a timely manner.<\/p>\n<p>5.3               COVENANTS OF ABATIS.<\/p>\n<p>         (a)      Abatis covenants and agrees that, until the Effective Date or<br \/>\n                  the earlier termination of this Agreement in accordance with<br \/>\n                  Section 7.0, except with the consent of Redback to any<br \/>\n                  deviation therefrom or with respect to any matter contemplated<br \/>\n                  by this Agreement or the Plan of Arrangement, Abatis will,<\/p>\n<p>                  (i)      carry on its business in, and only in, the ordinary<br \/>\n                           and regular course in substantially the same manner<br \/>\n                           as heretofore conducted and, to the extent consistent<br \/>\n                           with such business, use all reasonable efforts to<br \/>\n                           preserve intact its present business organization and<br \/>\n                           keep available the services of its present officers<br \/>\n                           and employees and others having business dealings<br \/>\n                           with it to the end that its goodwill and business<br \/>\n                           shall be maintained;<\/p>\n<p>                  (ii)     not commence to undertake a substantial or unusual<br \/>\n                           expansion of its business facilities or an expansion<br \/>\n                           that is out of the ordinary course of business<br \/>\n                           consistent with prior practice in light of current<br \/>\n                           market and economic conditions;<\/p>\n<p>                  (iii)    not split, combine or reclassify any of the<br \/>\n                           outstanding Abatis Shares, nor declare or pay any<br \/>\n                           dividends on or make any other distributions (in<br \/>\n                           either case, in stock or property) on or in respect<br \/>\n                           of the outstanding Abatis Shares;<\/p>\n<p>                                       68<\/p>\n<p>                  (iv)     not amend its articles or by-laws;<\/p>\n<p>                  (v)      not allot, reserve, set aside or issue,  authorize or<br \/>\n                           propose the allotment, reservation, setting aside or<br \/>\n                           issuance of, or purchase or redeem or propose the<br \/>\n                           purchase or redemption of, any shares in its capital<br \/>\n                           stock or any class of securities convertible or<br \/>\n                           exchangeable into, or rights, warrants or options to<br \/>\n                           acquire, any such shares or other convertible or<br \/>\n                           exchangeable securities, except for (A) the issuance<br \/>\n                           of Abatis Voting Common Shares pursuant to fully<br \/>\n                           vested Abatis Options granted prior to the date<br \/>\n                           hereof; (B) the issuance of Abatis Voting Common<br \/>\n                           Shares to employees of Abatis who have entered into<br \/>\n                           subscription agreements with Abatis prior to the date<br \/>\n                           hereof, as disclosed in the Abatis Disclosure<br \/>\n                           Schedule; and (C) the issuance of Abatis Voting<br \/>\n                           Common Shares to holders of Abatis Non-Voting Common<br \/>\n                           Shares upon the exercise by the holders thereof of<br \/>\n                           the right of conversion attached to such shares;<br \/>\n                           particulars of each of which are set out in the<br \/>\n                           Abatis Disclosure Schedule;<\/p>\n<p>                  (vi)     not, whether through its board of directors or<br \/>\n                           otherwise, accelerate, or permit to be accelerated,<br \/>\n                           the vesting of any unvested Abatis Options or<br \/>\n                           otherwise amend, vary or modify, or take any other<br \/>\n                           action under the Abatis Stock Option Plan other than<br \/>\n                           as contemplated herein;<\/p>\n<p>                  (vii)    not acquire or agree to acquire any Abatis Shares or<br \/>\n                           other of its outstanding securities, whether by<br \/>\n                           public or private transaction, or otherwise, except<br \/>\n                           in connection with the conversion of Abatis<br \/>\n                           Non-Voting Common Shares into Abatis Voting Common<br \/>\n                           Shares pursuant to the right of conversion attached<br \/>\n                           to the Abatis Non-Voting Common Shares;<\/p>\n<p>                  (viii)   not reorganize, amalgamate or merge Abatis with any<br \/>\n                           other person, nor acquire or agree to acquire by<br \/>\n                           amalgamating, merging or consolidating with,<br \/>\n                           purchasing substantially all of the assets of or<br \/>\n                           otherwise, any business of any corporation,<br \/>\n                           partnership, association or other business<br \/>\n                           organization or division thereof;<\/p>\n<p>                  (ix)     not guarantee the payment of indebtedness or incur<br \/>\n                           indebtedness for money borrowed or issue or sell any<br \/>\n                           debt securities; provided that Abatis may incur<br \/>\n                           indebtedness of up to $18,000,000 in the aggregate<br \/>\n                           (including <\/p>\n<p>                                       69<\/p>\n<p>                           existing indebtedness) to ALCATEL Networks<br \/>\n                           Corporation as provided for in the letter agreement<br \/>\n                           between such parties dated October 28, 1999;<\/p>\n<p>                  (x)      other than in the ordinary course of business or as<br \/>\n                           specifically contemplated in this Agreement, but<br \/>\n                           subject to restrictions set out elsewhere in this<br \/>\n                           Agreement, not enter into or modify any employment,<br \/>\n                           severance, collective bargaining or other Employee<br \/>\n                           Benefits, policies or arrangements with, or grant any<br \/>\n                           bonuses, salary increases, stock options, pension or<br \/>\n                           supplemental pension benefits, profit sharing,<br \/>\n                           retirement allowances, deferred compensation,<br \/>\n                           incentive compensation, severance or termination pay<br \/>\n                           to, or make any loan to, any officers, directors or<br \/>\n                           employees of Abatis;<\/p>\n<p>                  (xi)     not, except in the ordinary course of business:<\/p>\n<p>                           (A)      satisfy or settle any claims or liabilities<br \/>\n                                    prior to the same being due, except such as<br \/>\n                                    have been reserved against in the Financial<br \/>\n                                    Statements, which are, individually or in<br \/>\n                                    the aggregate, material; or<\/p>\n<p>                           (B)      grant any waiver, exercise any option or<br \/>\n                                    relinquish any contractual rights which are,<br \/>\n                                    individually or in the aggregate, material;<\/p>\n<p>                  (xii)    use its reasonable commercial efforts to cause its<br \/>\n                           current insurance (or re-insurance) policies not to<br \/>\n                           be cancelled or terminated or any of the coverage<br \/>\n                           thereunder to lapse, unless simultaneously with such<br \/>\n                           termination, cancellation or lapse, replacement<br \/>\n                           policies underwritten by insurance and re-insurance<br \/>\n                           companies of nationally recognized standing providing<br \/>\n                           coverage equal to or greater than the coverage under<br \/>\n                           the cancelled, terminated or lapsed policies for<br \/>\n                           substantially similar premiums are in full force and<br \/>\n                           effect;<\/p>\n<p>                  (xiii)   not settle or compromise any claim brought by any<br \/>\n                           present, former or purported holder of any of its<br \/>\n                           securities in connection with the transactions<br \/>\n                           contemplated by this Agreement or the Arrangement<br \/>\n                           prior to the Effective Date;<\/p>\n<p>                  (xiv)    not enter into any material contract, agreement,<br \/>\n                           licence, franchise, lease transaction, commitment or<br \/>\n                           other right or obligation (which for greater<\/p>\n<p>                                       70<\/p>\n<p>                           certainty shall include the proposed purchase order<br \/>\n                           and maintenance services agreement between Protel<br \/>\n                           Systems Inc. and Abatis or any similar arrangements)<br \/>\n                           or amend, modify, relinquish, terminate or fail to<br \/>\n                           renew in any material respect any Material Agreement,<br \/>\n                           all other than in the ordinary course of business, or<br \/>\n                           amend, modify, relinquish or terminate any of the Key<br \/>\n                           Employees Employment Agreements or the agreements<br \/>\n                           referred to in Section 3.1.52;<\/p>\n<p>                  (xv)     not acquire or sell, pledge, encumber or otherwise<br \/>\n                           dispose of any material property or assets (except<br \/>\n                           for the sale of inventory in the ordinary course of<br \/>\n                           business) and incur or commit to incur capital<br \/>\n                           expenditures prior to the Effective Date, other than<br \/>\n                           in the ordinary course of business, and not, in any<br \/>\n                           event, exceeding $100,000 in the aggregate;<\/p>\n<p>                  (xvi)    not make any changes to existing accounting practices<br \/>\n                           relating to Abatis, except as required by applicable<br \/>\n                           Law or required by generally accepted accounting<br \/>\n                           principles or make any material tax election<br \/>\n                           inconsistent with past practice; and<\/p>\n<p>                  (xvii)   promptly advise Redback orally and, if then<br \/>\n                           requested, in writing:<\/p>\n<p>                           (A)      of any event occurring subsequent to the<br \/>\n                                    date of this Agreement that would render any<br \/>\n                                    representation or warranty of Abatis<br \/>\n                                    contained in this Agreement (except any such<br \/>\n                                    representation or warranty which speaks as<br \/>\n                                    of a date prior to the date of this<br \/>\n                                    Agreement), if made on or as of the date of<br \/>\n                                    such event or the Effective Date, untrue or<br \/>\n                                    inaccurate in any material respect;<\/p>\n<p>                           (B)      of any Material Adverse Change in respect of<br \/>\n                                    Abatis; and<\/p>\n<p>                           (C)      of any breach by Abatis of any covenant or<br \/>\n                                    agreement contained in this Agreement.<\/p>\n<p>         (b)      Abatis shall perform all obligations required or desirable to<br \/>\n                  be performed by Abatis under this Agreement and shall do all<br \/>\n                  such other acts and things as may be necessary or desirable in<br \/>\n                  order to consummate and make effective, as soon as reasonably<br \/>\n                  practicable, the transactions contemplated in this Agreement<br \/>\n                  and, without limiting the generality of the foregoing, Abatis<br \/>\n                  shall:<\/p>\n<p>                                       71<\/p>\n<p>                  (i)      use all reasonable efforts to obtain the approvals of<br \/>\n                  holders of Abatis Shares to the Arrangement at the Abatis<br \/>\n                  Meeting, as provided for in Section 2.3(a) and in the Interim<br \/>\n                  Order, subject, however, to the exercise by the board of<br \/>\n                  directors of Abatis of its fiduciary duties as provided<br \/>\n                  herein;<\/p>\n<p>                  (ii)     apply for and use all reasonable efforts to obtain<br \/>\n                  all Appropriate Regulatory Approvals relating to Abatis and,<br \/>\n                  in doing so, to keep Redback reasonably informed as to the<br \/>\n                  status of the proceedings relating to obtaining the<br \/>\n                  Appropriate Regulatory Approvals, including providing Redback<br \/>\n                  with copies of all related applications and notifications, in<br \/>\n                  draft form, in order for Redback to provide its reasonable<br \/>\n                  comments;<\/p>\n<p>                  (iii)    apply for and use all reasonable efforts to obtain<br \/>\n                  the Interim Order and the Final Order;<\/p>\n<p>                  (iv)     continue to provide Redback and its Representatives<br \/>\n                           with information as reasonably requested by them from<br \/>\n                           time to time concerning the business, assets,<br \/>\n                           liabilities and affairs of Abatis subject to and in<br \/>\n                           accordance with the Confidentiality Agreement, and<br \/>\n                           with access (on a basis that does not detract<br \/>\n                           unreasonably from their performance of their business<br \/>\n                           responsibilities) to management and employees of<br \/>\n                           Abatis;<\/p>\n<p>                  (v)      carry out the terms of the Interim Order and Final<br \/>\n                           Order applicable to it and use its reasonable efforts<br \/>\n                           to comply promptly with all requirements which<br \/>\n                           applicable Laws may impose on Abatis with respect to<br \/>\n                           the transactions contemplated hereby and by the<br \/>\n                           Arrangement;<\/p>\n<p>                  (vi)     defend all lawsuits or other legal, regulatory or<br \/>\n                           other proceedings challenging or affecting this<br \/>\n                           Agreement or the consummation of the transactions<br \/>\n                           contemplated hereby;<\/p>\n<p>                  (vii)    use all reasonable efforts to have lifted or<br \/>\n                           rescinded any injunction or restraining order or<br \/>\n                           other order relating to Abatis which may adversely<br \/>\n                           affect the ability of the parties to consummate the<br \/>\n                           transactions contemplated hereby;<\/p>\n<p>                                       72<\/p>\n<p>                  (viii)   on or before the Effective Date, effect all necessary<br \/>\n                           registrations, filings and submissions of information<br \/>\n                           required by Governmental Entities from Abatis<br \/>\n                           relating to the transactions contemplated herein;<\/p>\n<p>                  (ix)     in connection with the Arrangement and other<br \/>\n                           transactions contemplated herein, use its reasonable<br \/>\n                           efforts to obtain, before the Effective Date, all<br \/>\n                           necessary waivers, consents and approvals required to<br \/>\n                           be obtained by Abatis from other parties pursuant to<br \/>\n                           the Material Agreements (including the consents,<br \/>\n                           approvals and waivers referred to in Section 6.2(g));<\/p>\n<p>                  (x)      use all reasonable efforts to cause the board of<br \/>\n                           directors of Abatis to resolve, on or before the<br \/>\n                           Effective Time, not to permit any early vesting of or<br \/>\n                           payment of cash for any Abatis Options in connection<br \/>\n                           with the Change of Control (as defined in the Abatis<br \/>\n                           Stock Option Plan) of Abatis resulting from the<br \/>\n                           completion of the transactions contemplated by this<br \/>\n                           Agreement;<\/p>\n<p>                  (xi)     not approve or register the transfer of any of the<br \/>\n                           Abatis Shares which are subject to the provisions of<br \/>\n                           the Principal Shareholder Voting Agreements, except<br \/>\n                           as expressly permitted by the Principal Shareholder<br \/>\n                           Voting Agreements;<\/p>\n<p>                  (xii)    obtain  waivers from ALCATEL  Networks  Corporation<br \/>\n                           and 3494365 Canada Inc. with respect to all<br \/>\n                           preemptive rights held by such Persons to purchase<br \/>\n                           Abatis Shares pursuant to the Shareholders&#8217;<br \/>\n                           Agreement;<\/p>\n<p>                  (xiii)   use all reasonable efforts to cause each of Abatis&#8217;s<br \/>\n                           affiliates (for the purposes of Rule 145 under the<br \/>\n                           Securities Act) to execute and deliver to Redback, on<br \/>\n                           or prior to the Effective Date, an Affiliate&#8217;s<br \/>\n                           Letter;<\/p>\n<p>                  (xiv)    use all reasonable efforts to obtain, on or before<br \/>\n                           the Effective Date, written resignations, effective<br \/>\n                           as at the Effective Time, from such directors and<br \/>\n                           officers of Abatis as Redback may request;<\/p>\n<p>                  (xv)     execute and deliver to Redback, on or before the<br \/>\n                           Effective Date, the Assumption Agreement;<\/p>\n<p>                  (xvi)    use all reasonable efforts to cause the Shareholders&#8217;<br \/>\n                           Agent to execute, on or before the Effective Date,<br \/>\n                           the Escrow Agreement and the Registration <\/p>\n<p>                                       73<\/p>\n<p>                           Rights Agreement and, in the event that the<br \/>\n                           Shareholders&#8217; Agent named in Section 1.1 has not<br \/>\n                           executed either such agreement by the Effective Date,<br \/>\n                           Abatis shall identify a person who is acceptable to<br \/>\n                           Redback, acting reasonably, to act as agent for and<br \/>\n                           on behalf of the Abatis Shareholders under the Escrow<br \/>\n                           Agreement and the Registration Rights Agreement and<br \/>\n                           to cause such replacement to execute each such<br \/>\n                           agreement on or before the Effective Date;<\/p>\n<p>                  (xvii)   deliver to Redback on or before the Effective Date<br \/>\n                           evidence, in a form acceptable to Redback acting<br \/>\n                           reasonably, of the termination of the Shareholders&#8217;<br \/>\n                           Agreement, such termination to be effective as of the<br \/>\n                           Effective Time;<\/p>\n<p>                  (xviii)  deliver to Redback, not less than 12 Business Days<br \/>\n                           prior to the Effective Date, a certificate duly<br \/>\n                           executed by two directors or senior officers of<br \/>\n                           Abatis setting forth the aggregate number of Abatis<br \/>\n                           Shares issued and outstanding as at the date of such<br \/>\n                           certificate (which shall also be the number of such<br \/>\n                           shares outstanding as at the Effective Date) and the<br \/>\n                           aggregate number of Abatis Shares which are or may at<br \/>\n                           any future time become issuable upon the exercise in<br \/>\n                           full of all Abatis Options outstanding as at the<br \/>\n                           Effective Date, including all Abatis Options which<br \/>\n                           are not fully vested or immediately exercisable as at<br \/>\n                           the Effective Date (which shall also be the number of<br \/>\n                           such shares issuable thereunder as at the Effective<br \/>\n                           Date), and certifying , except as disclosed in the<br \/>\n                           Abatis Disclosure Schedule, that there are no further<br \/>\n                           rights, agreements or arrangements of any nature or<br \/>\n                           kind then outstanding for the acquisition of further<br \/>\n                           Abatis Shares, or securities convertible into or<br \/>\n                           exchangeable for Abatis Shares;<\/p>\n<p>                  (xix)    not, notwithstanding any other provision of this<br \/>\n                           Agreement (including the Exhibits hereto and the<br \/>\n                           Disclosure Schedule), allot, issue or grant any<br \/>\n                           Abatis Shares, Abatis Options or other securities<br \/>\n                           convertible into or exchangeable for Abatis Shares,<br \/>\n                           or enter into any agreements or arrangements relating<br \/>\n                           thereto, to or with any Person or for any reason<br \/>\n                           between the date of the certificate referred to in<br \/>\n                           Section 5.3(b)(xviii) and the Effective Date; and<\/p>\n<p>                                       74<\/p>\n<p>                  (xx)     use all reasonable efforts to assist all Abatis<br \/>\n                           Shareholders and Abatis Optionholders who are not<br \/>\n                           residents of Canada for purposes of the INCOME TAX<br \/>\n                           ACT (Canada) to obtain appropriate clearance<br \/>\n                           certificates pursuant to Section 116 of such Act.<\/p>\n<p>5.4               COVENANTS OF THE REDBACK PARTIES. Each of the Redback Parties<br \/>\nhereby jointly and severally covenants and agrees:<\/p>\n<p>         (a)      to perform all obligations required or desirable to be<br \/>\n                  performed by it under this Agreement and to do all such other<br \/>\n                  acts and things as may be necessary or desirable in order to<br \/>\n                  consummate and make effective, as soon as reasonably<br \/>\n                  practicable, the transactions contemplated by this Agreement<br \/>\n                  and, without limiting the generality of the foregoing, to:<\/p>\n<p>                  (i)      apply for and use all reasonable efforts to obtain<br \/>\n                           all Appropriate Regulatory Approvals relating to<br \/>\n                           Redback and the transactions contemplated in this<br \/>\n                           Agreement, and, in doing so, to keep Abatis<br \/>\n                           reasonably informed as to the status of the<br \/>\n                           proceedings related to obtaining the Appropriate<br \/>\n                           Regulatory Approvals, including providing Abatis with<br \/>\n                           copies of all related applications and notifications,<br \/>\n                           in draft form, in order for Abatis to provide its<br \/>\n                           reasonable comments;<\/p>\n<p>                  (ii)     use reasonable efforts to cause to be voted in favour<br \/>\n                           of the Arrangement at the Abatis Meeting all proxies<br \/>\n                           granted to officers of Redback under the Principal<br \/>\n                           Shareholder Voting Agreements, to the maximum extent<br \/>\n                           that such officers are authorized or permitted to do<br \/>\n                           so under such proxies and under applicable Law;<\/p>\n<p>                  (iii)    defend all lawsuits or other legal, regulatory or<br \/>\n                           other proceedings to which it is a party challenging<br \/>\n                           or affecting this Agreement or the consummation of<br \/>\n                           the transactions contemplated hereby;<\/p>\n<p>                  (iv)     use all reasonable efforts to have lifted or<br \/>\n                           rescinded any injunction or restraining order or<br \/>\n                           other order relating to any of the Redback Parties<br \/>\n                           which may adversely affect the ability of the parties<br \/>\n                           to consummate the transactions contemplated hereby;<\/p>\n<p>                                       75<\/p>\n<p>                  (v)      on or before the Effective Date, effect all necessary<br \/>\n                           registrations, filings and submissions of information<br \/>\n                           required by Governmental Entities from Redback or its<br \/>\n                           subsidiaries relating to the transactions<br \/>\n                           contemplated herein;<\/p>\n<p>                  (vi)     on or before the Effective Date, cause the memorandum<br \/>\n                           and articles of Exchangeco to be amended to create<br \/>\n                           the Exchangeable Shares and the Preferred Shares (as<br \/>\n                           defined in the Share Provisions);<\/p>\n<p>                  (vii)    execute and deliver to Abatis on or before the<br \/>\n                           Effective Date, the Assumption Agreement; and<\/p>\n<p>                  (viii)   cause Redback to reserve a sufficient number of<br \/>\n                           Redback Common Shares for issuance upon the<br \/>\n                           completion of the Arrangement and the exchange from<br \/>\n                           time to time of Exchangeable Shares and the exercise<br \/>\n                           from time to time of Replacement Options;<\/p>\n<p>         (b)      carry out the terms of the Interim Order and Final Order<br \/>\n                  applicable to it and use its reasonable efforts to comply<br \/>\n                  promptly with all requirements which applicable Laws may<br \/>\n                  impose on Redback or its subsidiaries with respect to the<br \/>\n                  transactions contemplated hereby and by the Arrangement;<\/p>\n<p>         (c)      in connection with the consummation of the transactions<br \/>\n                  contemplated hereby and by the Arrangement, use its reasonable<br \/>\n                  efforts to obtain, before the Effective Date, all necessary<br \/>\n                  waivers, consents and approvals required to be obtained by<br \/>\n                  Redback or its subsidiaries from other parties to loan<br \/>\n                  agreements, leases or other contracts;<\/p>\n<p>         (d)      until the Effective Date or the earlier termination of this<br \/>\n                  Agreement in accordance with Section 7.0, except (i) with the<br \/>\n                  consent of Abatis to any deviation therefrom which shall not<br \/>\n                  be unreasonably withheld; or (ii) with respect to any matter<br \/>\n                  contemplated by this Agreement or the Plan of Arrangement,<br \/>\n                  Redback will:<\/p>\n<p>                  (i)      not make any changes to existing accounting practices<br \/>\n                           related to Redback, except as permitted or required<br \/>\n                           by a change in United States generally accepted<br \/>\n                           accounting practices or by applicable Law;<\/p>\n<p>                                       76<\/p>\n<p>                  (ii)     not reorganize, amalgamate or merge Redback with any<br \/>\n                           other Person, nor acquire by amalgamating, merging or<br \/>\n                           consolidating with, purchasing a majority of the<br \/>\n                           voting securities of or substantially all of the<br \/>\n                           assets of or otherwise, any business or Person which<br \/>\n                           acquisition would reasonably be expected to<br \/>\n                           materially delay the transactions contemplated<br \/>\n                           hereby; and<\/p>\n<p>                  (iii)    promptly advise Abatis orally and, if then requested,<br \/>\n                           in writing:<\/p>\n<p>                           (A)      of any event occurring subsequent to the<br \/>\n                                    date of this Agreement that would render any<br \/>\n                                    representation or warranty of Redback<br \/>\n                                    contained in this Agreement (except any such<br \/>\n                                    representation or warranty which speaks as<br \/>\n                                    of a date prior to the occurrence of such<br \/>\n                                    event), if made on or as of the date of such<br \/>\n                                    event or the Effective Date, untrue or<br \/>\n                                    inaccurate in any material respect;<\/p>\n<p>                           (B)      of any Material Adverse Change in respect of<br \/>\n                                    Redback; and<\/p>\n<p>                           (C)      of any material breach by Redback of any<br \/>\n                                    covenant or agreement contained in this<br \/>\n                                    Agreement; and<\/p>\n<p>         (e)      until the Effective Date or the earlier termination of this<br \/>\n                  Agreement in accordance with Section 7.0, forthwith give<br \/>\n                  written notice to Abatis if Redback intends to carry on as its<br \/>\n                  principal business an Investment Business or if it is<br \/>\n                  reasonably anticipated that Redback would be carrying on as<br \/>\n                  its principal business an Investment Business as of a<br \/>\n                  specified future date, and Redback further agrees not to carry<br \/>\n                  on as its principal business an Investment Business unless<br \/>\n                  Redback has given prior written notice thereof to Abatis,<br \/>\n                  provided that Redback shall not be required to give any notice<br \/>\n                  to Abatis under this Section 5.4(e) if the giving of such<br \/>\n                  notice would contravene applicable Laws including applicable<br \/>\n                  securities Laws.<\/p>\n<p>5.5               TAX DEFERRED STATUS. None of the parties shall, except as<br \/>\ncontemplated by this Agreement, take any action which may jeopardize the<br \/>\nexchange of the Abatis Shares for Exchangeable Shares pursuant to the<br \/>\nArrangement by holders of the Abatis Shares resident in Canada for the purposes<br \/>\nof the INCOME TAX ACT (Canada) from being treated on a tax deferred basis under<br \/>\nthe INCOME TAX ACT (Canada) for holders who are otherwise eligible for such<br \/>\ntreatment.<\/p>\n<p>                                       77<\/p>\n<p>5.6               APPLICATIONS FOR REGULATORY APPROVALS. Each of Abatis and the<br \/>\nRedback Parties covenant and agree to use all reasonable efforts required to<br \/>\napply for and obtain the Appropriate Regulatory Approvals, and shall proceed<br \/>\ndiligently with respect to such applications, in a coordinated and expeditious<br \/>\nmanner.<\/p>\n<p>5.7               SECTION 85 ELECTIONS. Exchangeco will execute and jointly file<br \/>\nwith each Abatis Shareholder who elects to receive Exchangeable Shares pursuant<br \/>\nto the Plan of Arrangement and who so requests an election pursuant to Section<br \/>\n85 of the INCOME TAX ACT (Canada) and any applicable provincial legislation in<br \/>\nwhich election such Abatis Shareholder will be entitled to elect the amount<br \/>\nwhich shall be such Abatis Shareholder&#8217;s proceeds of disposition and<br \/>\nExchangeco&#8217;s cost of the Abatis Shares exchanged for Exchangeable Shares,<br \/>\nprovided that (i) such amount is within the limits prescribed by Section 85 of<br \/>\nthe INCOME TAX ACT (Canada) and any applicable provincial legislation, (ii) such<br \/>\nAbatis Shareholder provides two completed copies of the appropriate tax election<br \/>\nform to Redback no later than 90 days after the Effective Date, and (iii) such<br \/>\nAbatis Shareholder provides Exchangeco with a letter representing to Exchangeco<br \/>\nthat such Abatis Shareholder is a resident of Canada for purposes of the INCOME<br \/>\nTAX ACT (Canada) and is not exempt from Tax. Upon any Abatis Shareholder<br \/>\ncomplying with the foregoing conditions, Exchangeco will execute the completed<br \/>\nelection form received from such shareholder and return such form by mail to<br \/>\nsuch shareholder within 30 days of its receipt thereof. The Abatis Shareholders<br \/>\nwill be solely responsible for the preparation of the foregoing election forms,<br \/>\nand for the filing of such forms with the appropriate Tax authority. Exchangeco<br \/>\nshall not be responsible or liable in any manner whatsoever for the proper<br \/>\ncompletion and timely filing of any such forms with the appropriate Tax<br \/>\nauthority, but will cooperate reasonably with the Abatis Shareholders in<br \/>\ncompleting and filing such forms in a timely manner, including providing such<br \/>\ninformation within Redback&#8217;s possession as is reasonably required by the Abatis<br \/>\nShareholders to complete such forms.<\/p>\n<p>5.8               COVENANTS REGARDING NON-SOLICITATION.<\/p>\n<p>         (a)      Subject to Section 5.9, Abatis shall not, directly or<br \/>\n                  indirectly, through any officer, director, employee,<br \/>\n                  representative or agent of Abatis:<\/p>\n<p>                  (i)      solicit, initiate or knowingly encourage (including<br \/>\n                           by way of furnishing information or entering into any<br \/>\n                           form of agreement, arrangement or understanding) the<br \/>\n                           initiation of any inquiries or proposals regarding an<br \/>\n                           Acquisition Proposal;<\/p>\n<p>                                       78<\/p>\n<p>                  (ii)     participate in any discussions or negotiations<br \/>\n                           regarding any Acquisition Proposal;<\/p>\n<p>                  (iii)    withdraw or modify in a manner  adverse to Redback<br \/>\n                           the approval of the board of directors of Abatis of<br \/>\n                           the transactions contemplated hereby;<\/p>\n<p>                  (iv)     approve or recommend any Acquisition Proposal; or<\/p>\n<p>                  (v)      enter into any agreement, arrangement or<br \/>\n                           understanding related to any Acquisition Proposal.<\/p>\n<p>                  Notwithstanding the preceding part of this Section 5.8(a) and<br \/>\n                  any other provision of this Agreement, nothing shall prevent<br \/>\n                  the board of directors of Abatis prior to the issuance of the<br \/>\n                  Final Order from considering, participating in any discussions<br \/>\n                  or negotiations, or entering into a confidentiality agreement<br \/>\n                  and providing information pursuant to Section 5.8(c),<br \/>\n                  regarding an unsolicited BONA FIDE written Acquisition<br \/>\n                  Proposal that did not otherwise result from a breach of this<br \/>\n                  Section 5.8 and that the board of directors of Abatis<br \/>\n                  determines in good faith, after consultation with financial<br \/>\n                  advisors and outside legal counsel, is reasonably likely to<br \/>\n                  result in a Superior Proposal; provided, however, that prior<br \/>\n                  to taking such action, the board of directors must receive an<br \/>\n                  opinion of outside legal counsel that it is appropriate that<br \/>\n                  the board of directors of Abatis take such action in order to<br \/>\n                  discharge properly its fiduciary duties. Abatis shall not<br \/>\n                  consider, negotiate, accept or recommend an Acquisition<br \/>\n                  Proposal after the date of the issuance of the Final Order.<br \/>\n                  Abatis shall, and shall cause its officers, directors and<br \/>\n                  employees and any financial advisors or other advisors,<br \/>\n                  representatives or agents retained by it to, cease immediately<br \/>\n                  all discussions and negotiations regarding any proposal that<br \/>\n                  constitutes, or may reasonably be expected to lead to, an<br \/>\n                  Acquisition Proposal.<\/p>\n<p>         (b)      Abatis shall  promptly  notify  Redback,  at first orally and<br \/>\n                  then in writing, of any Acquisition Proposal and any enquiry<br \/>\n                  that could lead to an Acquisition Proposal, or any amendments<br \/>\n                  to the foregoing, or any request for non-public information<br \/>\n                  relating to Abatis in connection with an Acquisition Proposal<br \/>\n                  or for access to the properties, books or records of Abatis by<br \/>\n                  any Person that informs Abatis that it is considering making,<br \/>\n                  or has made, a proposal that constitutes, or may reasonably be<br \/>\n                  expected to lead to an Acquisition Proposal. Such notice shall<br \/>\n                  include a description of the material terms and conditions of<br \/>\n                  any proposal, the identity of <\/p>\n<p>                                       79<\/p>\n<p>                  the Person making such proposal, enquiry or contact and<br \/>\n                  provide such other details of the proposal, enquiry or contact<br \/>\n                  as Redback may reasonably request. Abatis shall:<\/p>\n<p>                  (i)      keep  Redback  fully  informed  of the  status<br \/>\n                           including any change to the material terms of any<br \/>\n                           such Acquisition Proposal or enquiry; and<\/p>\n<p>                  (ii)     provide to Redback as soon as practicable after<br \/>\n                           receipt or delivery thereof with copies of all<br \/>\n                           correspondence and other written material sent or<br \/>\n                           provided to Abatis from any Person in connection with<br \/>\n                           any Acquisition Proposal or sent or provided by<br \/>\n                           Abatis to any Person in connection with any<br \/>\n                           Acquisition Proposal.<\/p>\n<p>         (c)      If Abatis receives a request for material non-public<br \/>\n                  information from a Person who has made an unsolicited BONA<br \/>\n                  FIDE written Acquisition Proposal and Abatis is permitted, as<br \/>\n                  contemplated under the second sentence of Section 5.8(a), to<br \/>\n                  negotiate the terms of such Acquisition Proposal, then, and<br \/>\n                  only in such case, the board of directors of Abatis may,<br \/>\n                  subject to the execution by such Person of a confidentiality<br \/>\n                  agreement on terms substantially similar to the<br \/>\n                  Confidentiality Agreement, provide such Person with access to<br \/>\n                  information regarding Abatis; provided, however, that the<br \/>\n                  Person making the Acquisition Proposal shall not be precluded<br \/>\n                  under such confidentiality agreement from making the<br \/>\n                  Acquisition Proposal (but not any material amendment thereto)<br \/>\n                  and provided further that Abatis sends a copy of any such<br \/>\n                  confidentiality agreement to Redback promptly upon its<br \/>\n                  execution and concurrently provides Redback with a list of or<br \/>\n                  copies of the information provided to such Person and access<br \/>\n                  to similar information to which such Person was provided.<\/p>\n<p>         (d)      Abatis shall ensure that its officers, directors and employees<br \/>\n                  and any financial advisors or other advisors, representatives<br \/>\n                  or agents retained by it are aware of the provisions of this<br \/>\n                  Section 5.8, and it shall be responsible for any breach of<br \/>\n                  this Section 5.8 by any such Person.<\/p>\n<p>5.9               NOTICE BY ABATIS OF SUPERIOR PROPOSAL DETERMINATION.<br \/>\nNotwithstanding Sections 5.8(a), (b) and (d), Abatis may accept, approve,<br \/>\nrecommend or enter into any agreement, understanding or arrangement in respect<br \/>\nof a Superior Proposal if, and only if:<\/p>\n<p>         (a)      it has provided Redback with a copy of the Superior Proposal<br \/>\n                  document;<\/p>\n<p>                                       80<\/p>\n<p>         (b)      five Business Days shall have elapsed from the later of the<br \/>\n                  date Redback received written notice advising Redback that<br \/>\n                  Abatis&#8217;s board of directors has resolved, subject only to<br \/>\n                  compliance with this Section 5.9 and termination of this<br \/>\n                  Agreement, to accept, approve, recommend or enter into an<br \/>\n                  agreement in respect of such Superior Proposal, specifying the<br \/>\n                  terms and conditions of such Superior Proposal and identifying<br \/>\n                  the Person making such Superior Proposal, and the date Redback<br \/>\n                  received a copy of such Superior Proposal; and<\/p>\n<p>         (c)      it has previously or concurrently will have:<\/p>\n<p>                  (i)      paid to Redback the break fee, if any, payable under<br \/>\n                           Section 7.4; and<\/p>\n<p>                  (ii)     terminated this Agreement pursuant to Section 7.3.<\/p>\n<p>         Any information provided by Abatis to Redback pursuant to this Section<br \/>\n5.9 or pursuant to Section 5.8 shall constitute &#8220;Information&#8221; under Section<br \/>\n5.10(b).<\/p>\n<p>         During such five Business Day period, Abatis agrees that Redback shall<br \/>\nhave the right, but not the obligation, to offer to amend the terms of this<br \/>\nAgreement. The board of directors of Abatis will review any offer by Redback to<br \/>\namend the terms of this Agreement in good faith in order to determine, in its<br \/>\ndiscretion in the exercise of its fiduciary duties, whether Redback&#8217;s offer upon<br \/>\nacceptance by Abatis would result in such Superior Proposal ceasing to be a<br \/>\nSuperior Proposal. If the board of directors of Abatis so determines, it will<br \/>\nenter into an amended agreement with Redback reflecting Redback&#8217;s amended<br \/>\nproposal. If the board of directors of Abatis continues to believe, in good<br \/>\nfaith and after consultation with financial advisors and outside legal counsel,<br \/>\nthat such Superior Proposal remains a Superior Proposal and therefore rejects<br \/>\nRedback&#8217;s amended proposal, Abatis may terminate this Agreement pursuant to<br \/>\nSection 7.3(c)(iv); provided, however, that Abatis must concurrently therewith<br \/>\npay to Redback the break fee, if any, payable to Redback under Section 7.4 and<br \/>\nmust concurrently with such termination enter into a definitive agreement with<br \/>\nrespect to such Acquisition Proposal. Abatis acknowledges and agrees that<br \/>\npayment of the break fee, if any, payable under Section 7.4 is a condition to<br \/>\nvalid termination of this Agreement under Section 7.3(c)(iv) and this Section<br \/>\n5.9.<\/p>\n<p>         Abatis also acknowledges and agrees that each successive modification<br \/>\nof any Acquisition Proposal shall constitute a new Acquisition Proposal for<br \/>\npurposes of the requirement under clause (ii) of this Section 5.9 to initiate an<br \/>\nadditional five Business Day notice period.<\/p>\n<p>                                       81<\/p>\n<p>5.10              ACCESS TO INFORMATION.<\/p>\n<p>         (a)      Subject to  Sections 5.10(b)  and (c) and applicable  Laws,<br \/>\n                  upon reasonable notice, Abatis shall afford Redback&#8217;s<br \/>\n                  officers, employees, counsel, accountants and other authorized<br \/>\n                  representatives and advisors (&#8220;REPRESENTATIVES&#8221;) access,<br \/>\n                  during normal business hours in the Pre-Effective Date Period,<br \/>\n                  but without unreasonably interfering with the operation of the<br \/>\n                  business of Abatis, to such properties, books, contracts and<br \/>\n                  records and other documents, information or data relating to<br \/>\n                  Abatis which Redback or its Representatives deem necessary or<br \/>\n                  advisable to review in making an examination of Abatis and its<br \/>\n                  business, as well as to its management personnel, and, during<br \/>\n                  such period, Abatis shall furnish promptly to Redback all<br \/>\n                  information concerning Abatis&#8217;s business, properties and<br \/>\n                  personnel as Redback or its Representatives may reasonably<br \/>\n                  request. Subject to Sections 5.10(b) and (c) and applicable<br \/>\n                  laws, upon reasonable notice, Redback shall afford Abatis&#8217;s<br \/>\n                  Representatives access, during normal business hours in the<br \/>\n                  Pre-Effective Date Period, but without unreasonably<br \/>\n                  interfering with the operation of the business of Redback, to<br \/>\n                  such of Redback&#8217;s management personnel as Redback may<br \/>\n                  determine, acting reasonably, and, during such period, Redback<br \/>\n                  shall furnish promptly to Abatis all information respecting<br \/>\n                  material changes in Redback&#8217;s business, properties and<br \/>\n                  personnel as Abatis may reasonably request. At the request of<br \/>\n                  Redback, Abatis will execute or cause to be executed such<br \/>\n                  consents, authorizations and directions as may be necessary to<br \/>\n                  enable Redback or its Representatives to obtain full access to<br \/>\n                  all files and records relating to Abatis or its assets<br \/>\n                  maintained by any Governmental Entity.<\/p>\n<p>         (b)      In accordance with the  Confidentiality  Agreement,  each of<br \/>\n                  Redback and Abatis acknowledges that certain information to be<br \/>\n                  provided to it under Section 5.10(a) above, or provided to it<br \/>\n                  prior to the execution of this Agreement, will be non-public<br \/>\n                  and\/or proprietary in nature (the &#8220;INFORMATION&#8221;). Except as<br \/>\n                  permitted below, each of Redback and Abatis will keep the<br \/>\n                  Information confidential and will not, without the prior<br \/>\n                  written consent of the other, disclose it, in any manner<br \/>\n                  whatsoever, in whole or in part, to any other Person, and will<br \/>\n                  not use it for any purpose other than to evaluate the<br \/>\n                  transactions contemplated by this Agreement. Each of Redback<br \/>\n                  and Abatis will make all reasonable, necessary and appropriate<br \/>\n                  efforts to safeguard the Information from disclosure to anyone<br \/>\n                  other than as permitted hereby and to control the copies,<br \/>\n                  extracts or reproductions made of the Information. The<br \/>\n                  Information may be provided to the Representatives of each of<br \/>\n                  Redback and Abatis who require access to the same to assist it<br \/>\n                  in proceeding in <\/p>\n<p>                                       82<\/p>\n<p>                  good faith with the transactions contemplated by this<br \/>\n                  Agreement, and whose assistance is required for such purposes,<br \/>\n                  provided that it has first informed such Representatives to<br \/>\n                  whom Information is provided that the Representative has the<br \/>\n                  same obligations, including as to confidentiality, restricted<br \/>\n                  use and otherwise, that it has with respect to such<br \/>\n                  Information. This provision shall not apply to such portions<br \/>\n                  of the Information that:<\/p>\n<p>                  (i)      are or become  generally  available to the public<br \/>\n                           otherwise than as a result of disclosure by a party<br \/>\n                           or its Representatives; or<\/p>\n<p>                  (ii)     become available to a party on a non-confidential<br \/>\n                           basis from a source other than, directly or<br \/>\n                           indirectly, the other party or its Representatives,<br \/>\n                           provided that such source is not, to the knowledge of<br \/>\n                           the first party, upon reasonable enquiry, prohibited<br \/>\n                           from transmitting the Information by a contractual,<br \/>\n                           legal or fiduciary obligation; or<\/p>\n<p>                  (iii)    were known to a party or were in its possession on a<br \/>\n                           non-confidential basis prior to being disclosed to it<br \/>\n                           by the other party or by someone on its behalf; or<\/p>\n<p>                  (iv)     are required by applicable Laws or court order to be<br \/>\n                           disclosed, provided that if a party or any of its<br \/>\n                           representatives (the &#8220;Compelled Party&#8221;) is required<br \/>\n                           to disclose any such information, the Compelled Party<br \/>\n                           gives the other parties (the &#8220;Other Parties&#8221;) prior<br \/>\n                           written notice of such disclosure as soon as<br \/>\n                           practicable, so that the Other Parties will have an<br \/>\n                           opportunity to seek a protective order or to take<br \/>\n                           other appropriate action.<\/p>\n<p>                  The provisions of this Section 5.10(b) shall survive the<br \/>\n                  termination of this Agreement.<\/p>\n<p>         (c)      The parties acknowledge that certain Information may be<br \/>\n                  competitively sensitive and that disclosure thereof shall be<br \/>\n                  limited to that which is reasonably necessary for the purpose<br \/>\n                  of:<\/p>\n<p>                  (i)      preparing submissions or applications in order to<br \/>\n                           obtain the Appropriate Regulatory Approvals;<\/p>\n<p>                  (ii)     preparing the Circular; and<\/p>\n<p>                                       83<\/p>\n<p>                  (iii)    integrating the operations of Redback and Abatis.<\/p>\n<p>5.11              COVENANT REGARDING REPRESENTATIONS AND WARRANTIES. Each of<br \/>\nAbatis and the Redback Parties covenants that it will use all reasonable efforts<br \/>\nto ensure that the representations and warranties given by it and contained in<br \/>\nSection 3.0 are true and correct on and as at the Effective Date (except as<br \/>\naffected by transactions contemplated or permitted by this Agreement or<br \/>\notherwise consented to by the other parties hereto) or if not true, do not have<br \/>\na Material Adverse Effect on such party (other than, in the case of Abatis, as a<br \/>\nresult of a Material Adverse Change in Abatis&#8217;s sales which is attributable to<br \/>\nor results from the announcement of the transactions contemplated in this<br \/>\nAgreement).<\/p>\n<p>5.12              CLOSING MATTERS. Each of the Redback Parties and Abatis shall<br \/>\ndeliver, at the closing of the Arrangement and other transactions contemplated<br \/>\nhereby, such customary certificates (including &#8220;bring-down&#8221; certificates),<br \/>\nresolutions, opinions and other closing documents as may be required by the<br \/>\nother party, acting reasonably. The closing of the Arrangement and the<br \/>\ntransactions contemplated hereby will take place at 11:00 a.m. (Pacific Time) on<br \/>\nthe Effective Date at the offices of Fraser Milner Casgrain, Suite 1500, 1040<br \/>\nWest Georgia Street, Vancouver, British Columbia.<\/p>\n<p>5.13              INDEMNIFICATION OF DIRECTORS AND OFFICERS.<\/p>\n<p>         (a)      Redback agrees that all rights to indemnification or<br \/>\n                  exculpation now existing in favour of the directors or<br \/>\n                  officers of Abatis, as provided in its articles of<br \/>\n                  incorporation or by-laws, a copy of which has been provided to<br \/>\n                  Redback prior to the date of the execution of this Agreement,<br \/>\n                  in effect on the date hereof, or as provided in any agreements<br \/>\n                  between Abatis and its directors and officers set out in the<br \/>\n                  Abatis Disclosure Schedule, shall survive the Arrangement and<br \/>\n                  shall continue in full force and effect for a period of not<br \/>\n                  less than six years from the Effective Time.<\/p>\n<p>         (b)      Redback agrees that from the Effective Date until the sixth<br \/>\n                  anniversary thereof it will maintain, or cause Abatis to<br \/>\n                  maintain, the current directors&#8217; and officers&#8217; insurance<br \/>\n                  policy of Abatis, or another policy for the benefit of, and in<br \/>\n                  the names of, the directors and officers of Abatis or<br \/>\n                  &#8220;discovery&#8221; endorsement, on terms and conditions which, to the<br \/>\n                  extent reasonably practicable, are no less advantageous to the<br \/>\n                  directors and officers of Abatis and which provide no less<br \/>\n                  coverage to them <\/p>\n<p>                                       84<\/p>\n<p>                  than Abatis&#8217;s existing directors&#8217; and officers&#8217; insurance, for<br \/>\n                  all present directors and officers of Abatis, covering claims<br \/>\n                  made within such period of time.<\/p>\n<p>5.14              EMPLOYMENT AND RELATED MATTERS. Redback covenants and agrees<br \/>\nthat from and after the Effective Time it will cause Abatis, for a period of one<br \/>\nyear, to deal with any employees of Abatis whose employment is terminated after<br \/>\nthe Effective Date in a fair and equitable manner consistent with the existing<br \/>\ntermination policies of Abatis as set out in the Abatis Disclosure Schedule.<\/p>\n<p>                  Nothing herein shall be construed as (i) requiring Redback or<br \/>\nAbatis to continue the employment of any employee of Abatis following the<br \/>\nEffective Time, (ii) limiting Redback&#8217;s or Abatis&#8217;s ability to amend, modify or<br \/>\nterminate any Employee Benefit or arrangement of Abatis, Redback or any of<br \/>\nRedback&#8217;s subsidiaries, or (iii) requiring Redback or Abatis to maintain any<br \/>\nparticular level of Employee Benefits for any employee of Abatis following the<br \/>\nEffective Time, except as otherwise provided in the Key Employee Employment<br \/>\nAgreements.<\/p>\n<p>5.15              PROHIBITION ON VOLUNTARY LIQUIDATION. The Redback Parties<br \/>\nshall not, and agree to cause Newco to not, take any action relating to a<br \/>\nvoluntary liquidation, dissolution or winding-up of Exchangeco or Newco, as the<br \/>\ncase may be, prior to the Redemption Date (as defined in the Plan of<br \/>\nArrangement).<\/p>\n<p>6.0               CONDITIONS<br \/>\n6.1               MUTUAL CONDITIONS PRECEDENT. The respective obligations of the<br \/>\nparties to complete the transactions contemplated by this Agreement shall be<br \/>\nsubject to the satisfaction, on or before the Effective Date, of the following<br \/>\nconditions precedent, each of which may only be waived by the mutual consent of<br \/>\nRedback and Abatis:<\/p>\n<p>         (a)      the Arrangement shall have been approved at the Abatis Meeting<br \/>\n                  by not less than two-thirds of the votes cast by the Abatis<br \/>\n                  Shareholders and the Abatis Optionholders who are represented<br \/>\n                  in person or by proxy thereat, in the manner contemplated by<br \/>\n                  Section 2.0;<\/p>\n<p>         (b)      the Arrangement shall have been approved at the Abatis Meeting<br \/>\n                  in accordance with any conditions in addition to those set out<br \/>\n                  in Section 6.1(a) which may be imposed by the CBCA or the<br \/>\n                  Interim Order;<\/p>\n<p>         (c)      the Interim Order and the Final Order shall each have been<br \/>\n                  obtained in form and terms satisfactory to each of Abatis and<br \/>\n                  Redback, acting reasonably, and shall not <\/p>\n<p>                                       85<\/p>\n<p>                  have been set aside or modified in a manner unacceptable to<br \/>\n                  such parties, acting reasonably, on appeal or otherwise;<\/p>\n<p>         (d)      there shall not be in force any order or decree restraining or<br \/>\n                  enjoining the consummation of the transactions contemplated by<br \/>\n                  this Agreement and there shall be no proceeding (other than an<br \/>\n                  appeal made in connection with the Arrangement), of a judicial<br \/>\n                  or administrative nature or otherwise, in progress or<br \/>\n                  threatened that relates to or results from the transactions<br \/>\n                  contemplated by this Agreement that would, if successful,<br \/>\n                  result in an order or ruling that would preclude completion of<br \/>\n                  the transactions contemplated by this Agreement in accordance<br \/>\n                  with the terms hereof or would otherwise be inconsistent with<br \/>\n                  the Appropriate Regulatory Approvals which have been obtained;<\/p>\n<p>         (e)      this Agreement shall not have been terminated pursuant to<br \/>\n                  Section 7.0;<\/p>\n<p>         (f)      the Redback Common Shares issuable (i) pursuant to the<br \/>\n                  Arrangement, (ii) upon exchange of the Exchangeable Shares<br \/>\n                  from time to time, and (iii) upon exercise of the Replacement<br \/>\n                  Options from time to time, shall have been authorized for<br \/>\n                  listing on the NNM, subject to official notice of issuance;<br \/>\n                  and<\/p>\n<p>         (g)      all consents, waivers, permits, orders and approvals of any<br \/>\n                  Governmental Entity (including the Appropriate Regulatory<br \/>\n                  Approvals), and the expiry of any waiting periods, in<br \/>\n                  connection with, or required to permit, the consummation of<br \/>\n                  the Arrangement, the failure of which to obtain or the<br \/>\n                  non-expiry of which would constitute a criminal offense, or<br \/>\n                  would have a Material Adverse Effect on Redback or Abatis, as<br \/>\n                  the case may be, shall have been obtained or received on terms<br \/>\n                  that will not have a Material Adverse Effect on Redback and\/or<br \/>\n                  Abatis and there shall not be pending or threatened any suit,<br \/>\n                  action or proceeding by any Governmental Entity, in each case<br \/>\n                  that has a reasonable likelihood of success,<\/p>\n<p>                  (i)      seeking to prohibit or restrict the acquisition by<br \/>\n                           Redback or any of its subsidiaries of any Abatis<br \/>\n                           Shares, seeking to restrain or prohibit the<br \/>\n                           consummation of the Plan of Arrangement or seeking to<br \/>\n                           obtain from Abatis or Redback any damages that are<br \/>\n                           material in relation to Abatis;<\/p>\n<p>                  (ii)     seeking to prohibit or materially limit the ownership<br \/>\n                           or operation by Redback or any of its subsidiaries of<br \/>\n                           any material portion of the business or assets of<br \/>\n                           Abatis or to compel Redback or any of its<br \/>\n                           subsidiaries to <\/p>\n<p>                                       86<\/p>\n<p>                           dispose of or hold separate any material portion of<br \/>\n                           the business or assets of Abatis;<\/p>\n<p>                  (iii)    seeking to impose limitations on the ability of<br \/>\n                           Redback or any of its subsidiaries to acquire or<br \/>\n                           hold, or exercise full rights of ownership of, any<br \/>\n                           Abatis Shares, including the right to vote the Abatis<br \/>\n                           Shares on all matters properly presented to the<br \/>\n                           shareholders of Abatis;<\/p>\n<p>                  (iv)     seeking to prohibit Redback or any of its<br \/>\n                           subsidiaries from effectively controlling in any<br \/>\n                           material respect the business or operations of<br \/>\n                           Abatis; or<\/p>\n<p>                  (v)      which otherwise is reasonably likely to have a<br \/>\n                           Material Adverse Effect on Abatis.<\/p>\n<p>6.2               ADDITIONAL CONDITIONS PRECEDENT TO THE OBLIGATIONS OF THE<br \/>\nREDBACK PARTIES. The obligations of the Redback Parties to complete the<br \/>\ntransactions contemplated by this Agreement shall also be subject to the<br \/>\nfulfilment of each of the following conditions precedent (each of which is for<br \/>\nthe Redback Parties&#8217; exclusive benefit and may be waived by the Redback Parties<br \/>\nand any one or more of which, if not satisfied or waived, will relieve the<br \/>\nRedback Parties of any obligation under this Agreement):<\/p>\n<p>         (a)      all covenants and agreements of Abatis under this Agreement to<br \/>\n                  be performed or observed on or before the Effective Date shall<br \/>\n                  have been duly performed and observed by Abatis in all<br \/>\n                  material respects;<\/p>\n<p>         (b)      the representations and warranties of Abatis contained in this<br \/>\n                  Agreement shall be true and correct in all material respects<br \/>\n                  as of the Effective Date as if made on and as of such date<br \/>\n                  (except to the extent such representations and warranties<br \/>\n                  speak as of a specified date which is earlier than the date of<br \/>\n                  this Agreement, in which event such representations and<br \/>\n                  warranties shall be true and correct in all material respects<br \/>\n                  as of such earlier specified date, or except as affected by<br \/>\n                  transactions contemplated or permitted by this Agreement or<br \/>\n                  otherwise consented to by Redback) and Redback shall have<br \/>\n                  received a certificate of Abatis addressed to Redback and<br \/>\n                  dated the Effective Date, signed on behalf of Abatis by two<br \/>\n                  senior executive officers of Abatis, confirming the same as at<br \/>\n                  the Effective Date;<\/p>\n<p>         (c)      between the date hereof and the Effective Date, there shall<br \/>\n                  not have occurred, in the judgment of Redback, acting<br \/>\n                  reasonably, a Material Adverse Change to <\/p>\n<p>                                       87<\/p>\n<p>                  Abatis, other than a Material Adverse Change in Abatis&#8217;s sales<br \/>\n                  which is attributable to or results from the announcement of<br \/>\n                  the transactions contemplated in this Agreement;<\/p>\n<p>         (d)      the board of directors of Abatis shall have adopted all<br \/>\n                  necessary resolutions, and all other necessary corporate<br \/>\n                  action shall have been taken by Abatis, to permit the<br \/>\n                  consummation of the Arrangement;<\/p>\n<p>         (e)      the board of directors of Abatis shall have made and shall not<br \/>\n                  have withdrawn or modified or amended, in any material<br \/>\n                  respect, prior to the Abatis Meeting, an affirmative<br \/>\n                  recommendation that the Abatis Shareholders and the Abatis<br \/>\n                  Optionholders approve the Arrangement;<\/p>\n<p>         (f)      holders of more than 5% of the issued and  outstanding  Abatis<br \/>\n                  Shares shall not have exercised the Dissent Rights in respect<br \/>\n                  of the Arrangement;<\/p>\n<p>         (g)      all consents, approvals, authorizations and waivers of any<br \/>\n                  Persons (other than Governmental Entities) which are required,<br \/>\n                  necessary or desirable for the completion of the Arrangement<br \/>\n                  and other transactions contemplated hereby (including all<br \/>\n                  those consents, approvals, authorizations and waivers required<br \/>\n                  under the Material Agreements and referred to in the Abatis<br \/>\n                  Disclosure Schedule), and for the subsequent transfer,<br \/>\n                  assignment or licencing of any of the Material Agreements by<br \/>\n                  Abatis to Redback or its affiliates, shall have been obtained<br \/>\n                  or received on terms which are acceptable to Redback, acting<br \/>\n                  reasonably;<\/p>\n<p>         (h)      each of the Principal Shareholder Voting Agreements, the Key<br \/>\n                  Employee Employment Agreements and the agreements referred to<br \/>\n                  in Section 3.1.52 shall be and remain in full force and<br \/>\n                  effect, unamended, and each of the parties thereto (other than<br \/>\n                  Redback) shall be, in all material respects, in full<br \/>\n                  compliance with their respective obligations thereunder;<\/p>\n<p>         (i)      Redback shall have received from Abatis evidence, in form and<br \/>\n                  content acceptable to Redback, acting reasonably, of the<br \/>\n                  termination of the Shareholders&#8217; Agreement, such termination<br \/>\n                  to be effective as at the Effective Time; and<\/p>\n<p>         (j)      the board of directors of Abatis shall have passed the<br \/>\n                  resolution referred to in Section 5.3(b)(x) and none of the<br \/>\n                  Abatis Options shall have been &#8220;cashed out&#8221; as provided for in<br \/>\n                  the Abatis Stock Option Plan, nor shall the vesting or time to<\/p>\n<p>                                       88<\/p>\n<p>                  exercise of any of such options have been accelerated, by<br \/>\n                  reason of the transactions contemplated by this Agreement or<br \/>\n                  otherwise, other than as provided in the Plan of Arrangement.<\/p>\n<p>The Redback Parties may not rely on the failure to satisfy any of the above<br \/>\nconditions precedent as a basis for a non-compliance by them with their<br \/>\nobligations under this Agreement if the condition precedent would have been<br \/>\nsatisfied but for a material default by the Redback Parties in complying with<br \/>\ntheir obligations hereunder.<\/p>\n<p>6.3               ADDITIONAL CONDITIONS PRECEDENT TO THE OBLIGATIONS OF ABATIS.<br \/>\nThe obligations of Abatis to complete the transactions contemplated by this<br \/>\nAgreement shall also be subject to the following conditions precedent (each of<br \/>\nwhich is for the exclusive benefit of Abatis and may be waived by Abatis and any<br \/>\none or more of which, if not satisfied or waived, will relieve Abatis of any<br \/>\nobligation under this Agreement):<\/p>\n<p>         (a)      all covenants of the Redback Parties under this Agreement to<br \/>\n                  be performed on or before the Effective Date shall have been<br \/>\n                  duly performed by the Redback Parties in all material<br \/>\n                  respects;<\/p>\n<p>         (b)      all  representations  and warranties of the Redback Parties<br \/>\n                  contained in this Agreement shall be true and correct in all<br \/>\n                  material respects as of the Effective Date as if made on and<br \/>\n                  as of such date (except to the extent such representations and<br \/>\n                  warranties speak as of a specified date which is earlier than<br \/>\n                  the date of this Agreement, in which event such<br \/>\n                  representations and warranties shall be true and correct in<br \/>\n                  all material respects as of such earlier specified date, or<br \/>\n                  except as affected by transactions contemplated or permitted<br \/>\n                  by this Agreement) and Abatis shall have received a<br \/>\n                  certificate of each of the Redback Parties addressed to Abatis<br \/>\n                  and dated the Effective Date, signed on behalf of each of the<br \/>\n                  Redback Parties by two senior executive officers of the<br \/>\n                  relevant Redback Party, confirming the same as at the<br \/>\n                  Effective Date;<\/p>\n<p>         (c)      between the date hereof and the Effective Date, there shall<br \/>\n                  not have occurred, in the judgment of Abatis, acting<br \/>\n                  reasonably, a Material Adverse Change to Redback; provided<br \/>\n                  that a reduction in the market price or value of the Redback<br \/>\n                  Common Shares on the NNM or any other stock exchange or<br \/>\n                  quotation system on which the Redback Common Shares may be<br \/>\n                  listed or posted for trading shall not, in and of itself,<br \/>\n                  constitute such a Material Adverse Change; and<\/p>\n<p>                                       89<\/p>\n<p>         (d)      the board of directors of each of the Redback Parties<br \/>\n                  and Newco shall have adopted all necessary resolutions, and<br \/>\n                  all other necessary corporate action shall have been taken by<br \/>\n                  the Redback Parties to permit the consummation of the<br \/>\n                  Arrangement and the issue of the Exchangeable Shares<br \/>\n                  contemplated thereby and the issue of Redback Common Shares<br \/>\n                  pursuant to the Arrangement and upon the exchange from time to<br \/>\n                  time of the Exchangeable Shares and the issuance and exercise<br \/>\n                  from time to time of the Replacement Options and the issue<br \/>\n                  from time to time of Redback Common Shares on the exercise of<br \/>\n                  the Replacement Options.<\/p>\n<p>Abatis may not rely on the failure to satisfy any of the above conditions<br \/>\nprecedent as a basis for noncompliance by Abatis with its obligations under this<br \/>\nAgreement if the condition precedent would have been satisfied but for a<br \/>\nmaterial default by Abatis in complying with its obligations hereunder.<\/p>\n<p>6.4      NOTICE AND CURE PROVISIONS. The Redback Parties and Abatis will give<br \/>\nprompt notice to the other of the occurrence, or failure to occur, at any time<br \/>\nfrom the date hereof until the Effective Date, of any event or state of facts<br \/>\nwhich occurrence or failure would, or would be likely to:<\/p>\n<p>         (a)      cause any of the  representations  or  warranties  of the<br \/>\n                  other  contained  herein to be untrue or  inaccurate in any<br \/>\n                  material respect on the date hereof or on the Effective Date;<br \/>\n                  or<\/p>\n<p>         (b)      result in the failure to comply with or satisfy any<br \/>\n                  covenant, condition or agreement to be complied with or<br \/>\n                  satisfied by the other hereunder prior to the Effective Date.<\/p>\n<p>Neither the Redback Parties nor Abatis may elect not to complete the<br \/>\ntransactions contemplated hereby pursuant to the conditions precedent contained<br \/>\nin Sections 6.1, 6.2 and 6.3, or exercise any termination right arising<br \/>\ntherefrom, unless forthwith and in any event prior to the filing of the Final<br \/>\nOrder for acceptance by the Director, the Redback Parties or Abatis, as the case<br \/>\nmay be, have delivered a written notice to the other specifying in reasonable<br \/>\ndetail all breaches of covenants, representations and warranties or other<br \/>\nmatters which the Redback Parties or Abatis, as the case may be, are asserting<br \/>\nas the basis for the non-fulfilment of the applicable condition precedent or the<br \/>\nexercise of the termination right, as the case may be. If any such notice is<br \/>\ndelivered, provided that the Redback Parties or Abatis, as the case may be, are<br \/>\nproceeding diligently to cure such matter, if such matter is susceptible to<br \/>\nbeing cured, the other may not terminate this Agreement until the later of<br \/>\nNovember 30, 2000 and the expiration of a period of<\/p>\n<p>                                       90<\/p>\n<p>30 days from such notice. If such notice has been delivered prior to the date of<br \/>\nthe Abatis Meeting, such meeting shall be postponed until the expiry of such<br \/>\nperiod. If such notice has been delivered prior to the making of the application<br \/>\nfor the Final Order or the filing of the Articles of Arrangement with the<br \/>\nDirector, such application and such filing shall be postponed until the expiry<br \/>\nof such period. For greater certainty, in the event that such matter is cured<br \/>\nwithin the time period referred to herein, this Agreement may not be terminated.<\/p>\n<p>6.5      SATISFACTION OF CONDITIONS. The conditions precedent set out in<br \/>\nSections 6.1, 6.2 and 6.3 shall be conclusively deemed to have been satisfied,<br \/>\nwaived or released when, with the approval of Redback and Abatis, a certificate<br \/>\nof arrangement in respect of the Arrangement is issued by the Director.<\/p>\n<p>7.0      AMENDMENT AND TERMINATION<\/p>\n<p>7.1      AMENDMENT. This Agreement may, at any time and from time to time<br \/>\nbefore or after the holding of the Abatis Meeting but not later than the<br \/>\nEffective Date, be amended by mutual written agreement of the parties hereto,<br \/>\nand any such amendment may, without limitation:<\/p>\n<p>         (a)      change the time for performance of any of the obligations or<br \/>\n                  acts of the parties;<\/p>\n<p>         (b)      waive any inaccuracies or modify any representation contained<br \/>\n                  herein or in any document delivered pursuant hereto;<\/p>\n<p>         (c)      waive compliance with or modify any of the covenants  herein<br \/>\n                  contained and waive or modify  performance of any of the<br \/>\n                  obligations of the parties; and<\/p>\n<p>         (d)      waive compliance with or modify any conditions precedent<br \/>\n                  herein contained,<\/p>\n<p>provided, however, that any such change, waiver or modification does not<br \/>\ninvalidate any required approval of the Abatis Shareholders and the Abatis<br \/>\nOptionholders to the Arrangement.<\/p>\n<p>7.2               MUTUAL UNDERSTANDING REGARDING AMENDMENTS.<\/p>\n<p>         (a)      The parties will continue, from and after the date<br \/>\n                  hereof and through and including the Effective Date, to use<br \/>\n                  their respective reasonable efforts to maximize present and<br \/>\n                  future financial and tax planning opportunities for the<br \/>\n                  holders of Abatis Shares, and for Redback and for Abatis, as<br \/>\n                  and to the extent that the same shall not prejudice any party<br \/>\n                  or its security holders. The parties will<\/p>\n<p>                                       91<\/p>\n<p>                  ensure that such planning activities do not impede the<br \/>\n                  progress or timing of the Arrangement in any material way.<\/p>\n<p>         (b)      The parties agree that if the Redback Parties or<br \/>\n                  Abatis, as the case may be, propose any amendment or<br \/>\n                  amendments to this Agreement or to the Plan of Arrangement,<br \/>\n                  the other will act reasonably in considering such amendment<br \/>\n                  and if the other and its security holders are not prejudiced<br \/>\n                  by reason of any such amendment the other will co-operate in a<br \/>\n                  reasonable fashion with the Redback Parties or Abatis, as the<br \/>\n                  case may be, so that such amendment can be effected subject to<br \/>\n                  applicable Laws and the rights of the security holders.<\/p>\n<p>7.3               TERMINATION.<\/p>\n<p>         (a)      If any condition contained in Sections 6.1 or 6.2 is<br \/>\n                  not satisfied on or before the Effective Date, to the<br \/>\n                  satisfaction of the Redback Parties, then Redback on behalf of<br \/>\n                  the Redback Parties may by notice to Abatis terminate this<br \/>\n                  Agreement and the obligations of the parties hereunder except<br \/>\n                  as otherwise herein provided, but without detracting from the<br \/>\n                  rights of the Redback Parties arising from any breach by<br \/>\n                  Abatis but for which the condition would have been satisfied.<\/p>\n<p>         (b)      If any condition contained in Sections 6.1 or 6.3 is<br \/>\n                  not satisfied on or before the Effective Date to the<br \/>\n                  satisfaction of Abatis, then Abatis may by notice to Redback<br \/>\n                  on behalf of the Redback Parties terminate this Agreement and<br \/>\n                  the obligations of the parties hereunder except as otherwise<br \/>\n                  herein provided, but without detracting from the rights of<br \/>\n                  Abatis arising from any breach by the Redback Parties but for<br \/>\n                  which the condition would have been satisfied.<\/p>\n<p>         (c)      This Agreement may, at any time before or after the<br \/>\n                  holding of the Abatis Meeting but not later than the Effective<br \/>\n                  Date:<\/p>\n<p>                  (i)      be terminated by the mutual agreement of<br \/>\n                           Abatis and Redback on behalf of the Redback Parties<br \/>\n                           (without further action on the part of the Abatis<br \/>\n                           Shareholders and the Abatis Optionholders if<br \/>\n                           terminated after the holding of the Abatis Meeting);<\/p>\n<p>                  (ii)     be terminated by either Abatis or Redback on<br \/>\n                           behalf of the Redback Parties, if there shall be<br \/>\n                           passed any law or regulation that makes consummation<br \/>\n                           of the transactions contemplated by this Agreement<br \/>\n                           illegal<\/p>\n<p>                                       92<\/p>\n<p>                           or otherwise prohibited or if any injunction,<br \/>\n                           order or decree enjoining the Redback Parties or<br \/>\n                           Abatis from consummating the transactions<br \/>\n                           contemplated by this Agreement is entered and such<br \/>\n                           injunction, order or decree shall become final and<br \/>\n                           non-appealable;<\/p>\n<p>                  (iii)    be terminated by Redback on behalf of the Redback<br \/>\n                           Parties if<\/p>\n<p>                           (A)      the board of directors of Abatis<br \/>\n                                    shall have failed to recommend or withdrawn<br \/>\n                                    or modified or changed in a manner adverse<br \/>\n                                    to Redback its approval or recommendation of<br \/>\n                                    this Agreement or the Arrangement or shall<br \/>\n                                    have recommended or approved an Acquisition<br \/>\n                                    Proposal; or<\/p>\n<p>                           (B)      through no fault of the Redback<br \/>\n                                    Parties, the Arrangement shall not have been<br \/>\n                                    submitted for the approval of the Abatis<br \/>\n                                    Shareholders and the Abatis Optionholders at<br \/>\n                                    the Abatis Meeting, on or before November<br \/>\n                                    30, 2000, in the manner provided for in<br \/>\n                                    Section 2.0 and in the Interim Order;<\/p>\n<p>                  (iv)     be terminated by Abatis in order to enter into<br \/>\n                           a definitive written agreement with respect to a<br \/>\n                           Superior Proposal, subject to compliance with Section<br \/>\n                           5.8 and the payment of the fee required to be paid<br \/>\n                           pursuant to Section 7.4(a); or<\/p>\n<p>                  (v)      be terminated by either Abatis or Redback on<br \/>\n                           behalf of the Redback Parties if the Arrangement,<br \/>\n                           through no fault of the Redback Parties, shall not<br \/>\n                           have been approved by the Abatis Shareholders and the<br \/>\n                           Abatis Optionholders, on or before November 30, 2000,<br \/>\n                           in the manner provided for in Section 2.0 and in the<br \/>\n                           Interim Order.<\/p>\n<p>         (d)      Notwithstanding any other provision hereof, if the<br \/>\n                  Effective Date does not occur on or prior to the Drop Dead<br \/>\n                  Date, then this Agreement shall terminate.<\/p>\n<p>         (e)      If this Agreement is terminated in accordance with the<br \/>\n                  foregoing provisions of this Section 7.3, no party shall have<br \/>\n                  any further liability to perform its obligations hereunder,<br \/>\n                  except as provided for in Section 7.4 or as otherwise<br \/>\n                  contemplated hereby, and provided that, subject to Section<br \/>\n                  7.6, neither the termination of this Agreement nor anything<br \/>\n                  contained in this Section 7.3(e) shall relieve any party<\/p>\n<p>                                       93<\/p>\n<p>                  from any liability for any breach by it of this Agreement,<br \/>\n                  including from any inaccuracy in its representations and<br \/>\n                  warranties and any non-performance by it of its covenants made<br \/>\n                  herein.<\/p>\n<p>7.4               BREAK FEE.<\/p>\n<p>         (a)      If:<\/p>\n<p>                  (i)      Abatis shall terminate this Agreement pursuant to<br \/>\n                           Section 7.3(c)(iv);<\/p>\n<p>                  (ii)     the Redback Parties shall terminate this Agreement<br \/>\n                           pursuant to Section 7.3(c)(iii);<\/p>\n<p>                  (iii)    either Abatis or the Redback Parties shall terminate<br \/>\n                           this Agreement pursuant to Section 7.3(c)(v); or<\/p>\n<p>                  (iv)     the Redback Parties shall terminate this<br \/>\n                           Agreement pursuant to Section 7.3(a) in respect of<br \/>\n                           the non-satisfaction of either of the conditions<br \/>\n                           contained in Sections 6.2(a) or (b), other than a<br \/>\n                           termination pursuant to Section 7.3(a) in respect of<br \/>\n                           the non-satisfaction of the condition contained in<br \/>\n                           section 6.2(b) relating to a representation or<br \/>\n                           warranty which is true and correct as of the date of<br \/>\n                           this Agreement but which, through no fault of Abatis<br \/>\n                           after the date of this Agreement, is not true and<br \/>\n                           correct in all material respects as of the Effective<br \/>\n                           Date;<\/p>\n<p>                  then in any such case Abatis shall pay to Redback the sum of<br \/>\n                  $24,000,000 in immediately available funds to an account<br \/>\n                  designated by Redback. Such payment shall be due and payable:<\/p>\n<p>                  (A)      in the case of a termination specified in clause (i),<br \/>\n                           prior to the termination of this Agreement;<\/p>\n<p>                  (B)      in the case of a termination specified in<br \/>\n                           clause (ii), within five Business Days after written<br \/>\n                           notice of termination by the Redback Parties;<\/p>\n<p>                  (C)      in the case of a termination specified in<br \/>\n                           clause (iii), within five Business Days after written<br \/>\n                           notice of the termination contemplated therein by<br \/>\n                           either Abatis or the Redback Parties; or<\/p>\n<p>                                       94<\/p>\n<p>                  (D)      in the case of a termination specified in<br \/>\n                           clause (iv), within five Business Days after written<br \/>\n                           notice of termination by Redback.<\/p>\n<p>                  Abatis shall not be obligated to make more than one payment<br \/>\n                  pursuant to this Section 7.4(a).<\/p>\n<p>         (b)      If Abatis shall terminate this Agreement pursuant to Section<br \/>\n                  7.3(b) in respect of the non-satisfaction of either of the<br \/>\n                  conditions contained in Section 6.3(a) or (b), other than a<br \/>\n                  termination pursuant to Section 7.3(b) in respect of the<br \/>\n                  non-satisfaction of the condition contained in Section 6.3(b)<br \/>\n                  relating to a representation or warranty which is true and<br \/>\n                  correct as of the date of this Agreement but which, through no<br \/>\n                  fault of the Redback Parties, is not true and correct in all<br \/>\n                  material respects as of the Effective Date after the date of<br \/>\n                  this Agreement, then in any such case Redback shall pay to<br \/>\n                  Abatis the sum of $24,000,000 in immediately available funds<br \/>\n                  to an account designated by Abatis. Such payment shall be<br \/>\n                  due and payable within five Business Days after written<br \/>\n                  notice of termination by Abatis. Redback shall not be<br \/>\n                  obligated to make more than one payment pursuant to this<br \/>\n                  Section 7.4(b).<\/p>\n<p>7.5      LIQUIDATED DAMAGES. Each of the parties acknowledges that the damages<br \/>\nset forth in this Section 7.0 are a genuine pre-estimate of the damages which<br \/>\nthe other will suffer or incur as a result of the event giving rise to those<br \/>\ndamages and are not penalties. Each of the parties irrevocably waives any right<br \/>\nit may have to raise as a defence in any proceedings that any such damages are<br \/>\nabusive.<\/p>\n<p>7.6      REMEDIES. Subject to Section 7.7, the parties hereto acknowledge and<br \/>\nagree that an award of money damages would be inadequate for any breach of this<br \/>\nAgreement by any party or its representatives and any such breach would cause<br \/>\nthe non-breaching party irreparable harm. Accordingly, the parties hereto agree<br \/>\nthat, in the event of any breach or threatened breach of this Agreement by one<br \/>\nof the parties, the non-breaching party will also be entitled, without the<br \/>\nrequirement of posting a bond or other security, to equitable relief, including<br \/>\ninjunctive relief and specific performance. Such remedies will not be the<br \/>\nexclusive remedies for any breach of this Agreement but will be in addition to<br \/>\nall other remedies available at law or equity to the parties.<\/p>\n<p>7.7      EFFECT OF BREAK FEE PAYMENT. For greater certainty, the parties agree<br \/>\nthat the payment of the amount pursuant to Section 7.4 is the sole monetary<br \/>\nremedy of the party entitled to such amount as a result of the occurrence of any<br \/>\nof the events referred to in Section 7.4(a) or (b), as the case may be.<\/p>\n<p>                                       95<\/p>\n<p>         Subject to the immediately preceding paragraph, nothing in this<br \/>\nAgreement shall preclude a party from seeking damages in respect of losses<br \/>\nincurred or suffered by such party as a result of any breach of this Agreement<br \/>\nby the other party, seeking injunctive relief to restrain any breach or<br \/>\nthreatened breach of the covenants or agreements set forth in this Agreement or<br \/>\nthe Confidentiality Agreement or otherwise, or seeking specific performance of<br \/>\nany of such covenants or agreements, without the necessity of posting bond or<br \/>\nsecurity in connection therewith.<\/p>\n<p>8.0      GENERAL<\/p>\n<p>8.1      NOTICES. All notices and other communications which may or are<br \/>\nrequired to be given pursuant to any provision of this Agreement shall be given<br \/>\nor made in writing and shall be deemed to be validly given if served personally<br \/>\nor by telecopy, in each case addressed to the particular party at:<\/p>\n<p>         (a)      If to Abatis:<\/p>\n<p>                  Abatis Systems Corporation<br \/>\n                  4190 Still Creek Drive<br \/>\n                  Suite 200<br \/>\n                  Burnaby, British Columbia  V5C 6C6<\/p>\n<p>                  ATTENTION:     President and Chief Executive Officer<br \/>\n                  Facsimile:     (604) 918-4795<\/p>\n<p>                  with a copy to:<\/p>\n<p>                  McCarthy Tetrault<br \/>\n                  1300 &#8211; 777 Dunsmuir Street<br \/>\n                  P.O. Box 10424<br \/>\n                  Vancouver, British Columbia  V7Y 1K2<\/p>\n<p>                  ATTENTION:     Ted I. Koffman<br \/>\n                  &#8212;&#8212;&#8212;<br \/>\n                  Facsimile:     (604) 622-5707<\/p>\n<p>                  and to:<\/p>\n<p>                  Preston Gates &amp; Ellis LLP<br \/>\n                  5000 Bank of America Tower<br \/>\n                  701 Fifth Avenue<br \/>\n                  Seattle, Washington<br \/>\n                  98104<\/p>\n<p>                  ATTENTION:     Gary J. Kocher<br \/>\n                  &#8212;&#8212;&#8212;<br \/>\n                  Facsimile:     (206) 623-7022<\/p>\n<p>                                       96<\/p>\n<p>         (b)      If to a Redback Party:<\/p>\n<p>                  Redback Networks Inc.<br \/>\n                  1195 Borregas Avenue<br \/>\n                  Sunnyvale, California<br \/>\n                  94089<\/p>\n<p>                  ATTENTION:     General Counsel<br \/>\n                  Facsimile:     (408) 541-0420<\/p>\n<p>                  with a copy to:<\/p>\n<p>                  Gunderson Dettmer LLP<br \/>\n                  155 Constitution Drive<br \/>\n                  Menlo Park, California  94025<\/p>\n<p>                  ATTENTION:     Gregory K. Miller<br \/>\n                  &#8212;&#8212;&#8212;<br \/>\n                  Facsimile:     (650) 321-2800<\/p>\n<p>                  and to:<\/p>\n<p>                  Fraser Milner Casgrain<br \/>\n                  1500 &#8211; 1040 West Georgia Street<br \/>\n                  Vancouver, British Columbia  V6E 4H8<\/p>\n<p>                  ATTENTION:     Gary R. Sollis<br \/>\n                  &#8212;&#8212;&#8212;<br \/>\n                  Facsimile:     (604) 683-5214<\/p>\n<p>or at such other address of which any party may, from time to time, advise the<br \/>\nother parties by notice in writing given in accordance with the foregoing. The<br \/>\ndate of receipt of any such notice shall be deemed to be the date of delivery or<br \/>\ntelecopying thereof.<\/p>\n<p>8.2      ASSIGNMENT.  No party hereto may assign its rights or obligations under<br \/>\nthis Agreement or the Arrangement.<\/p>\n<p>8.3      BINDING EFFECT.  This Agreement and the Arrangement shall be binding<br \/>\nupon and shall enure to the benefit of the parties hereto and their respective<br \/>\nsuccessors.<\/p>\n<p>8.4      WAIVER AND MODIFICATION. Abatis and the Redback Parties may waive or<br \/>\nconsent to the modification of, in whole or in part, any inaccuracy of any<br \/>\nrepresentation or warranty made to them hereunder or in any document to be<br \/>\ndelivered pursuant hereto and may waive or consent to the modification of any of<br \/>\nthe covenants herein contained for their respective benefit or waiver or consent<br \/>\nto the modification of any of the obligations of the other parties hereto. Any<br \/>\nwaiver or consent to the modification of any of the provisions of this<br \/>\nAgreement, to be effective, must be in writing executed by the party granting<br \/>\nsuch waiver or consent.<\/p>\n<p>                                       97<\/p>\n<p>8.5      NO PERSONAL LIABILITY.<\/p>\n<p>         (a)      No director or officer of any Redback Party shall have<br \/>\n                  any personal liability whatsoever to Abatis under this<br \/>\n                  Agreement, or any other document delivered in connection with<br \/>\n                  the Arrangement by or on behalf of a Redback Party.<\/p>\n<p>         (b)      No director or officer of Abatis shall have any<br \/>\n                  personal liability whatsoever to any Redback Party under this<br \/>\n                  Agreement, or any other document delivered in connection with<br \/>\n                  the Arrangement by or on behalf of Abatis.<\/p>\n<p>8.6      FURTHER ASSURANCES. Each party hereto shall, from time to time, and<br \/>\nat all times hereafter, at the request of the other parties hereto, but without<br \/>\nfurther consideration, do all such further acts and things and execute and<br \/>\ndeliver all such further documents and instruments as shall be reasonably<br \/>\nrequired in order to fully perform and carry out the terms and intent hereof.<\/p>\n<p>8.7      EXPENSES. Except as provided in Section 7.4, all out-of-pocket<br \/>\nexpenses of the parties relating to the Arrangement and the transactions<br \/>\ncontemplated hereby, including all Third Party Expenses, shall be paid by the<br \/>\nparty incurring such expenses; provided, however, that if Abatis is not required<br \/>\nto make any payment to Redback under Section 7.4, Redback shall, on or promptly<br \/>\nafter the Effective Date, pay to Abatis the sum of $200,000 in reimbursement of<br \/>\nall of the professional fees and expenses payable by Abatis to Onabru Ltd. in<br \/>\nconnection with the financial advisory services relating to the Arrangement<br \/>\nprovided by Onabru Ltd. pursuant to the Financial Advisory Agreement dated July<br \/>\n12, 2000, a true and complete copy of which has been provided to Redback.<\/p>\n<p>8.8      CONSULTATION. Redback and Abatis agree to consult with each other as<br \/>\nto the general nature of any news releases or public statements with respect to<br \/>\nthis Agreement or the Arrangement, and to use their respective reasonable<br \/>\nefforts not to issue any news releases or public statements inconsistent with<br \/>\nthe results of such consultations. Subject to applicable Laws, each party shall<br \/>\nuse its reasonable efforts to enable the other parties to review and comment on<br \/>\nall such news releases prior to the release thereof. The parties agree to issue<br \/>\njointly a news release with respect to this Arrangement as soon as practicable<br \/>\nfollowing the execution of this Agreement.<\/p>\n<p>8.9      GOVERNING LAWS. This Agreement shall be governed by and construed in<br \/>\naccordance with the laws of the Province of British Columbia and the laws of<br \/>\nCanada applicable therein and shall be treated in all respects as a British<br \/>\nColumbia contract.<\/p>\n<p>                                       98<\/p>\n<p>8.10     COUNTERPARTS. This Agreement may be executed in one or more<br \/>\ncounterparts, each of which shall be deemed to be an original, but all of which<br \/>\ntogether shall constitute one and the same instrument.<\/p>\n<p>         IN WITNESS WHEREOF the parties hereto have executed this Agreement as<br \/>\nof the date first written above.<\/p>\n<p>                                            REDBACK NETWORKS INC.<\/p>\n<p>                                            By:<br \/>\n                                               &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<\/p>\n<p>                                            610381 B.C. INC.<\/p>\n<p>                                            By:<br \/>\n                                               &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<\/p>\n<p>                                            ABATIS SYSTEMS CORPORATION<\/p>\n<p>                                            By:<br \/>\n                                               &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<\/p>\n<p>                                       99<\/p>\n<p>                                    EXHIBIT A<\/p>\n<p>                           FORM OF AFFILIATE&#8217;S LETTER<\/p>\n<p>Dear Sirs:<\/p>\n<p>         The undersigned, a holder of [CLASS A VOTING COMMON SHARES\/CLASS B<br \/>\nNON-VOTING COMMON SHARES] (the &#8220;ABATIS COMMON SHARES&#8221;) in the capital of Abatis<br \/>\nSystems Corporation, a corporation existing under the laws of Canada (&#8220;ABATIS&#8221;),<br \/>\nis entitled to receive in connection with the arrangement pursuant to Section<br \/>\n192 of the CANADA BUSINESS CORPORATIONS ACT, R.S.C. 1995, c. C-44 (the<br \/>\n&#8220;ARRANGEMENT&#8221;) to be entered into pursuant to the Arrangement Agreement dated as<br \/>\nof July 30, 2000 among Abatis, Redback Networks Inc., a corporation existing<br \/>\nunder the laws of the State of Delaware (&#8220;REDBACK&#8221;) and 610381 B.C. Inc., a<br \/>\ncompany existing under the laws of the Province of British Columbia<br \/>\n(&#8220;EXCHANGECO&#8221;), either exchangeable shares (the &#8220;EXCHANGEABLE SHARES&#8221;) of<br \/>\nExchangeco or shares of common stock of Redback. The undersigned acknowledges<br \/>\nthat the undersigned may be deemed an &#8220;affiliate&#8221; of Abatis within the meaning<br \/>\nof Rule 145 (&#8220;RULE 145&#8221;) promulgated under the U.S. SECURITIES ACT OF 1933, as<br \/>\namended (the &#8220;SECURITIES ACT&#8221;), by the U.S. Securities and Exchange Commission<br \/>\n(the &#8220;SEC&#8221;), although nothing contained herein should be construed as an<br \/>\nadmission of such fact or a waiver of any rights the undersigned may have to<br \/>\nobject to any claim that the undersigned is such an affiliate.<\/p>\n<p>         If in fact the undersigned were such an affiliate, the undersigned&#8217;s<br \/>\nability to sell, assign or transfer:<\/p>\n<p>         (a)      the  Exchangeable  Shares received by the undersigned in<br \/>\n                  exchange for any Abatis Common Shares in connection with the<br \/>\n                  Arrangement; and<\/p>\n<p>         (b)      any shares of common stock of Redback  (collectively,  with<br \/>\n                  the Exchangeable  Shares, the &#8220;SECURITIES&#8221;) for which the<br \/>\n                  Exchangeable Shares may be exchanged;<\/p>\n<p>may be restricted unless such transaction is registered under the Securities Act<br \/>\nor an exemption from such registration is available. The undersigned understands<br \/>\nthat such exemptions are limited and the undersigned has obtained or will obtain<br \/>\nadvice of counsel as to the nature and conditions of such exemptions, including<br \/>\ninformation with respect to the applicability to the sale<\/p>\n<p>of the Securities of Rules 144 and 145(d) promulgated under the Securities Act.<br \/>\nThe undersigned understands that Redback will not be required to maintain the<br \/>\neffectiveness of any registration statement under the Securities Act for the<br \/>\npurpose of resale of Securities by the undersigned other than as provided in the<br \/>\nRegistration Rights Agreement.<\/p>\n<p>         The undersigned hereby represents and covenants with Redback that the<br \/>\nundersigned will not sell, assign or transfer any of the Securities received by<br \/>\nthe undersigned in exchange for Abatis Common Shares in connection with the<br \/>\nArrangement except:<\/p>\n<p>         (a)      pursuant to an effective registration statement under the<br \/>\n                  Securities Act;<\/p>\n<p>         (b)      in conformity with Rule 145; or<\/p>\n<p>         (c)      in a transaction which, in the opinion of the general<br \/>\n                  counsel of Redback or other counsel reasonably satisfactory to<br \/>\n                  Redback or as described in a &#8220;no-action&#8221; or interpretative<br \/>\n                  letter from the staff of the SEC specifically issued with<br \/>\n                  respect to a transaction to be engaged in by the undersigned,<br \/>\n                  is not required to be registered under the Securities Act.<\/p>\n<p>         In the event of a sale or other disposition by the undersigned of<br \/>\nSecurities pursuant to Rule 145, the undersigned will supply Redback with<br \/>\nevidence of compliance with such Rule, in the form of a letter substantially in<br \/>\nthe form of Annex I hereto.<\/p>\n<p>         Redback covenants that it will take all such actions as may be<br \/>\nreasonably available to it to permit the sale or other disposition of Securities<br \/>\nby the undersigned under Rule 145 in accordance with the terms thereof.<\/p>\n<p>         The undersigned also understands that there will be placed on any<br \/>\ncertificates for the Securities issued to the undersigned a legend stating in<br \/>\nsubstance:<\/p>\n<p>                  &#8220;THE SECURITIES REPRESENTED BY THIS CERTIFICATE WERE ISSUED IN<br \/>\n                  A TRANSACTION TO WHICH RULE 145 PROMULGATED UNDER THE<br \/>\n                  SECURITIES ACT OF 1933 APPLIES. THE SECURITIES REPRESENTED BY<br \/>\n                  THIS CERTIFICATE MAY BE SOLD, TRANSFERRED OR OTHERWISE<br \/>\n                  DISPOSED OF ONLY IN ACCORDANCE WITH THE TERMS OF A LETTER<br \/>\n                  AGREEMENT BETWEEN THE REGISTERED HOLDER HEREOF AND REDBACK<br \/>\n                  NETWORKS INC., A COPY OF WHICH AGREEMENT IS ON FILE AT THE<br \/>\n                  PRINCIPAL OFFICES OF REDBACK NETWORKS INC.&#8221;<\/p>\n<p>                                      2<\/p>\n<p>         The undersigned also understands that unless a sale or transfer by the<br \/>\nundersigned of the undersigned&#8217;s Securities has been registered under the Act or<br \/>\nis a sale made in conformity with the provisions of Rule 145 under the Act,<br \/>\nRedback reserves the right to put the following legend on the certificates<br \/>\nissued to the undersigned&#8217;s transferee:<\/p>\n<p>                  &#8220;THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN<br \/>\n                  REGISTERED UNDER THE SECURITIES ACT OF 1933 AND WERE ACQUIRED<br \/>\n                  FROM A PERSON WHO RECEIVED SUCH SECURITIES IN A TRANSACTION TO<br \/>\n                  WHICH RULE 145 PROMULGATED UNDER THE SECURITIES ACT OF 1933<br \/>\n                  APPLIES. THE SECURITIES HAVE NOT BEEN ACQUIRED BY THE HOLDER<br \/>\n                  WITH A VIEW TO, OR FOR RESALE IN CONNECTION WITH, ANY<br \/>\n                  DISTRIBUTION THEREOF WITHIN THE MEANING OF THE SECURITIES ACT<br \/>\n                  OF 1933 AND MAY NOT BE SOLD, TRANSFERRED OR OTHERWISE DISPOSED<br \/>\n                  OF EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT OR<br \/>\n                  IN ACCORDANCE WITH AN EXEMPTION FROM THE REGISTRATION<br \/>\n                  REQUIREMENTS OF THE SECURITIES ACT OF 1933.&#8221;<\/p>\n<p>         It is understood and agreed that the legends set forth above shall be<br \/>\nremoved by delivery of substitute certificates without such legend if (i) the<br \/>\nsecurities represented thereby have been registered for sale by the undersigned<br \/>\nunder the Securities Act or (ii) Redback has received either an opinion of<br \/>\ncounsel, which opinion and counsel shall be reasonably satisfactory to Redback,<br \/>\nor a &#8220;no-action&#8221; letter obtained by the undersigned from the staff of the<br \/>\nCommission, to the effect that the restrictions imposed by Rule 145 under the<br \/>\nAct no longer apply to the undersigned.<\/p>\n<p>         The undersigned acknowledges that:<\/p>\n<p>         (a)      the undersigned has carefully read this letter and<br \/>\n                  understands the requirements hereof and the limitations<br \/>\n                  imposed upon the distribution, sale, transfer or other<br \/>\n                  disposition of the Securities; and<\/p>\n<p>                                       3<\/p>\n<p>         (b)      the receipt by Redback and  Exchangeco of this letter is an<br \/>\n                  inducement to Redback and  Exchangeco to consummate  the<br \/>\n                  Arrangement.<\/p>\n<p>                                            Very truly yours,<\/p>\n<p>                  DATED:<br \/>\n                        &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<\/p>\n<p>                  Accepted and agreed to this<\/p>\n<p>                                            REDBACK NETWORKS INC.<\/p>\n<p>                                            By:<br \/>\n                                               &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<\/p>\n<p>                                       4<\/p>\n<p>                                     ANNEX I<\/p>\n<p>[NAME]<\/p>\n<p>         On o, the undersigned sold the securities below (the &#8220;SECURITIES&#8221;).<br \/>\nThe Securities were received by the undersigned in connection with the<br \/>\narrangement pursuant to section 192 of the CANADA BUSINESS CORPORATIONS ACT,<br \/>\nR.S.C. 1995, c. C-44 entered into pursuant to the Arrangement Agreement dated as<br \/>\nof July 30, 2000 among Abatis Systems Corporation, a corporation existing under<br \/>\nthe laws of Canada, Redback Networks Inc., a corporation existing under the laws<br \/>\nof the State of Delaware (&#8220;REDBACK&#8221;) and 610381 B.C. Inc., a company existing<br \/>\nunder the laws of the Province of British Columbia.<\/p>\n<p>         The undersigned hereby represents to Redback that the sale of the<br \/>\nSecurities was made in compliance with Rule 145 promulgated under the U.S.<br \/>\nSECURITIES ACT OF 1933, as amended.<\/p>\n<p>                                            Very truly yours,<\/p>\n<p>[SPACE TO BE PROVIDED FOR DESCRIPTION OF THE SECURITIES SOLD]<\/p>\n<p>                                    EXHIBIT B<\/p>\n<p>                        APPROPRIATE REGULATORY APPROVALS<\/p>\n<p>TO BE OBTAINED OR FILED BY REDBACK NETWORKS INC.<\/p>\n<p>     o   notice of the Arrangement to be filed with the Director of Investments<br \/>\n         pursuant to Section 12 of the INVESTMENT CANADA ACT within 30 days of<br \/>\n         the Effective Date.<\/p>\n<p>     o   exemption orders from the Ontario Securities Commission and the British<br \/>\n         Columbia Securities Commission from the registration and prospectus<br \/>\n         requirements with respect to the Exchangeable Share structure as<br \/>\n         described in Section 2.6(a).<\/p>\n<p>     o   expiration or earlier termination of the waiting period under the<br \/>\n         Hart-Scott-Rodino Antitrust Improvements Act of 1976.<\/p>\n<p>     o   authorization for listing of the Redback Common Shares issuable in<br \/>\n         connection with the Arrangement and upon exercise of the Exchangeable<br \/>\n         Shares and the Replacement Options on the NNM, subject to the official<br \/>\n         notice of issuance.<\/p>\n<p>         Such other material authorizations, orders or consents of or,<br \/>\nregistration, declaration or filing with, any Governmental Entities as required<br \/>\nby or with respect to the Redback Parties in connection with the execution and<br \/>\ndelivery by the Redback Parties of this Agreement or the Arrangement or any<br \/>\nother documents and agreements to be delivered under this Agreement, or<br \/>\nconsummation by the Redback Parties of the transactions contemplated by this<br \/>\nAgreement or the Arrangement.<\/p>\n<p>TO BE OBTAINED OR FILED BY ABATIS SYSTEMS CORPORATION<\/p>\n<p>     o   notice to the Director under the CBCA with respect to the Interim Order<br \/>\n         and the Final Order.<\/p>\n<p>     o   filing of the Articles of Arrangement with the Director under the CBCA<br \/>\n         upon receipt of the Final Order.<\/p>\n<p>         Such other material authorizations, orders or consents of or,<br \/>\nregistration, declaration or filing with, any Governmental Entities as required<br \/>\nby or with respect to Abatis in connection with the execution and delivery by<br \/>\nAbatis of this Agreement or the Arrangement or any other documents and<br \/>\nagreements to be delivered under this Agreement, or consummation by Abatis of<br \/>\nthe transactions contemplated by this Agreement or the Arrangement.<\/p>\n<p>                                    EXHIBIT C<\/p>\n<p>                             ARRANGEMENT RESOLUTION<\/p>\n<p>                              SPECIAL RESOLUTION OF<\/p>\n<p>                 THE ABATIS SYSTEMS CORPORATION SECURITYHOLDERS<\/p>\n<p>BE IT RESOLVED THAT:<\/p>\n<p>1.       The arrangement (the &#8220;ARRANGEMENT&#8221;) under Section 192 of the CANADA<br \/>\nBUSINESS CORPORATIONS ACT (the &#8220;CBCA&#8221;) involving Abatis Systems Corporation<br \/>\n(&#8220;ABATIS&#8221;), as more particularly described and set forth in the Management Proxy<br \/>\nCircular (the &#8220;CIRCULAR&#8221;) of Abatis accompanying the notice of this meeting (as<br \/>\nthe Arrangement may be modified or amended), is hereby authorized, approved and<br \/>\nadopted.<\/p>\n<p>2.       The Plan of Arrangement (the &#8220;PLAN OF ARRANGEMENT&#8221;) involving Abatis,<br \/>\nthe full text of which is set out as Exhibit E to the Arrangement Agreement made<br \/>\nas of July 30, 2000 between Redback Networks Inc., 610381 B.C. Inc. and Abatis<br \/>\n(the &#8220;ARRANGEMENT Agreement&#8221;) (as the Plan of Arrangement may be or may have<br \/>\nbeen amended), is hereby approved and adopted.<\/p>\n<p>3.       Notwithstanding that this resolution has been passed (and the<br \/>\nArrangement adopted) by the shareholders and optionholders of Abatis or that the<br \/>\nArrangement has been approved by the Supreme Court of British Columbia, the<br \/>\ndirectors of Abatis are hereby authorized and empowered (i) to amend the<br \/>\nArrangement Agreement, or the Plan of Arrangement to the extent permitted by the<br \/>\nArrangement Agreement, and (ii) not to proceed with the Arrangement without<br \/>\nfurther approval of the shareholders and optionholders of Abatis, but only if<br \/>\nthe Arrangement Agreement is terminated in accordance with Article 7 thereof.<\/p>\n<p>4.       Any officer or director of Abatis is hereby authorized and directed<br \/>\nfor and on behalf of Abatis to execute, under the seal of Abatis or otherwise,<br \/>\nand to deliver articles of arrangement and such other documents as are necessary<br \/>\nor desirable to the Director under the CBCA in accordance with the Arrangement<br \/>\nAgreement for filing.<\/p>\n<p>5.       Any officer or director of Abatis is hereby authorized and directed<br \/>\nfor and on behalf of Abatis to execute or cause to be executed, under the seal<br \/>\nof Abatis or otherwise, and to<\/p>\n<p>deliver or cause to be delivered, all such other documents and instruments and<br \/>\nto perform or cause to be performed all such other acts and things as in such<br \/>\nperson&#8217;s opinion may be necessary or desirable to give full effect to the<br \/>\nforegoing resolution and the matters authorized thereby, such termination to be<br \/>\nconclusively evidenced by the execution and delivery of such document, agreement<br \/>\nor instrument or the doing of any such act or thing.<\/p>\n<p>                                       3<\/p>\n<p>                                    EXHIBIT D<\/p>\n<p>                            EXCHANGE TRUST AGREEMENT<\/p>\n<p>         MEMORANDUM OF AGREEMENT made as of the o day of o, 2000.<\/p>\n<p>AMONG:<\/p>\n<p>                  610381 B.C. INC., a company existing under the laws of<br \/>\n                  Province of British Columbia<\/p>\n<p>                  (hereinafter referred to as &#8220;EXCHANGECO&#8221;)<\/p>\n<p>AND:<\/p>\n<p>                  REDBACK NETWORKS INC., a corporation existing under the laws<br \/>\n                  of the State of Delaware<\/p>\n<p>                  (hereinafter referred to as &#8220;REDBACK&#8221;)<\/p>\n<p>AND:<\/p>\n<p>                  MONTREAL TRUST COMPANY OF CANADA, a trust company existing<br \/>\n                  under the federal laws of Canada<\/p>\n<p>                  (hereinafter referred to as the &#8220;TRUSTEE&#8221;)<\/p>\n<p>         WHEREAS:<\/p>\n<p>A.       Pursuant to an arrangement agreement (the &#8220;ARRANGEMENT AGREEMENT&#8221;)<br \/>\ndated as of July 30, 2000 among Redback, Exchangeco and Abatis Systems<br \/>\nCorporation (&#8220;ABATIS&#8221;), Exchangeco is to issue exchangeable shares (the<br \/>\n&#8220;EXCHANGEABLE SHARES&#8221;) to certain holders of Class A Voting Common Shares and<br \/>\nClass B Non-Voting Common Shares of Abatis pursuant to the plan of arrangement<br \/>\n(the &#8220;PLAN OF ARRANGEMENT&#8221;) contemplated by the Arrangement Agreement;<\/p>\n<p>B.       Pursuant to the Arrangement Agreement, Redback and Exchangeco have<br \/>\nagreed to execute an Exchange Trust Agreement substantially in the form of this<br \/>\nAgreement;<\/p>\n<p>         NOW THEREFORE in consideration of the respective covenants and<br \/>\nagreements provided in this Agreement and for other valuable consideration (the<br \/>\nreceipt and sufficiency of which are hereby acknowledged), the parties hereto<br \/>\ncovenant and agree as follows:<\/p>\n<p>1.0      DEFINITIONS AND INTERPRETATION<\/p>\n<p>1.1      DEFINITIONS.  In this Agreement, the following terms shall have the<br \/>\nfollowing meanings:<\/p>\n<p>                  &#8220;AFFILIATE&#8221; of any person means any other person directly or<br \/>\n                  indirectly controlled by, or under common control of, that<br \/>\n                  person. For the purposes of this definition, &#8220;control&#8221;<br \/>\n                  (including, with correlative meanings, the terms &#8220;controlled<br \/>\n                  by&#8221; and &#8220;under common control of&#8221;), as applied to any person,<br \/>\n                  means the possession by another person, directly or<br \/>\n                  indirectly, of the power to direct or cause the direction of<br \/>\n                  the management and policies of that first mentioned person,<br \/>\n                  whether through the ownership of voting securities, by<br \/>\n                  contract or otherwise;<\/p>\n<p>                  &#8220;ARRANGEMENT&#8221; means the arrangement under Section 192 of the<br \/>\n                  CANADA BUSINESS CORPORATIONS ACT involving, among others,<br \/>\n                  Abatis and its shareholders and contemplated by the Plan of<br \/>\n                  Arrangement;<\/p>\n<p>                  &#8220;AUTHORIZED PERSON&#8221; has the meaning ascribed thereto in<br \/>\n                  Section 3.14;<\/p>\n<p>                  &#8220;AUTOMATIC EXCHANGE RIGHTS&#8221; means the benefit of the<br \/>\n                  obligation of Redback to effect the automatic exchange of<br \/>\n                  Redback Common Shares for Exchangeable Shares pursuant to<br \/>\n                  Section 3.12;<\/p>\n<p>                  &#8220;BENEFICIARIES&#8221; means the registered holders from time to time<br \/>\n                  of Exchangeable Shares, other than Redback and its Affiliates;<\/p>\n<p>                  &#8220;BOARD OF DIRECTORS&#8221; means the Board of Directors of\\<br \/>\n                  Exchangeco;<\/p>\n<p>                  &#8220;BUSINESS DAY&#8221; means any day on which commercial banks are<br \/>\n                  open for business in San Francisco, California and Vancouver,<br \/>\n                  British Columbia, other than a Saturday, a Sunday or a day<br \/>\n                  observed as a holiday in Vancouver, British Columbia under the<br \/>\n                  laws of the Province of British Columbia or the federal laws<\/p>\n<p>                                       2<\/p>\n<p>                  of Canada or in San Francisco, California under the laws of<br \/>\n                  the State of California or the federal laws of the United<br \/>\n                  States of America;<\/p>\n<p>                  &#8220;CANADIAN DOLLAR EQUIVALENT&#8221; means, in respect of an amount<br \/>\n                  expressed in a currency other than Canadian dollars (the<br \/>\n                  &#8220;FOREIGN CURRENCY AMOUNT&#8221;) at any date, the product obtained<br \/>\n                  by multiplying (a) the Foreign Currency Amount by (b) the noon<br \/>\n                  spot exchange rate on such date for such foreign currency<br \/>\n                  expressed in Canadian dollars as reported by the Bank of<br \/>\n                  Canada or, in the event such spot exchange rate is not<br \/>\n                  available, any publicly disclosed and widely quoted exchange<br \/>\n                  rate as quoted by an arm&#8217;s length third party on such date for<br \/>\n                  such foreign currency expressed in Canadian dollars as may be<br \/>\n                  deemed by the Board of Directors, acting reasonably, to be<br \/>\n                  appropriate for such purpose;<\/p>\n<p>                  &#8220;COMPANY ACT&#8221; means the COMPANY ACT, R.S.B.C. 1996, c. 62, as<br \/>\n                  amended;<\/p>\n<p>                  &#8220;CURRENT MARKET PRICE&#8221; means, in respect of a Redback Common<br \/>\n                  Share on any date, the Canadian Dollar Equivalent of the<br \/>\n                  average of the closing sale price of Redback Common Shares<br \/>\n                  during a period of 20 consecutive trading days ending not more<br \/>\n                  than three trading days before such date on the NNM, or, if<br \/>\n                  the Redback Common Shares are not then quoted on the NNM, on<br \/>\n                  such other stock exchange or automated quotation system on<br \/>\n                  which the Redback Common Shares are listed or quoted, as the<br \/>\n                  case may be, as may be selected by the Board of Directors,<br \/>\n                  acting reasonably, for such purpose; provided, however, that<br \/>\n                  if the Redback Common Shares are not quoted on any stock<br \/>\n                  exchange or automated quotation system, then the Current<br \/>\n                  Market Price of a Redback Common Share shall be determined by<br \/>\n                  the Board of Directors, acting reasonably, in good faith and<br \/>\n                  in its sole discretion, and provided further that any such<br \/>\n                  selection, opinion or determination by the Board of Directors<br \/>\n                  shall be conclusive and binding;<\/p>\n<p>                  &#8220;EXCHANGE RIGHT&#8221; has the meaning ascribed thereto in<br \/>\n                  Section 3.1;<\/p>\n<p>                  &#8220;EXCHANGEABLE SHARE&#8221; means a share in the class of non-voting<br \/>\n                  exchangeable shares in the capital of Exchangeco;<\/p>\n<p>                                       3<\/p>\n<p>                  &#8220;HOLDER&#8221; means, when used with reference to the Exchangeable<br \/>\n                  Shares, a holder of Exchangeable Shares as shown from time to<br \/>\n                  time on the register of members maintained by or on behalf of<br \/>\n                  Exchangeco in respect of the Exchangeable Shares;<\/p>\n<p>                  &#8220;INDEMNIFIED PARTIES&#8221; has the meaning ascribed thereto in<br \/>\n                  Section 6.1;<\/p>\n<p>                  &#8220;INSOLVENCY EVENT&#8221; means the institution by Exchangeco of any<br \/>\n                  proceeding to be adjudicated a bankrupt or insolvent or to be<br \/>\n                  wound up, or the consent of Exchangeco to the institution of<br \/>\n                  bankruptcy, insolvency or winding-up proceedings against it,<br \/>\n                  or the filing of a petition, answer or consent seeking<br \/>\n                  dissolution or winding-up under any bankruptcy, insolvency or<br \/>\n                  analogous laws, including without limitation the COMPANIES<br \/>\n                  CREDITORS&#8217; ARRANGEMENT ACT (Canada) and the BANKRUPTCY AND<br \/>\n                  INSOLVENCY ACT (Canada), and the failure by Exchangeco to<br \/>\n                  contest in good faith any such proceedings commenced in<br \/>\n                  respect of Exchangeco within 20 days of becoming aware<br \/>\n                  thereof, or the consent by Exchangeco to the filing of any<br \/>\n                  such petition or to the appointment of a receiver, or the<br \/>\n                  making by Exchangeco of a general assignment for the benefit<br \/>\n                  of creditors, or the admission in writing by Exchangeco of its<br \/>\n                  inability to pay its debts generally as they become due, or<br \/>\n                  Exchangeco not being permitted, pursuant to solvency<br \/>\n                  requirements of applicable law, to redeem any Retracted Shares<br \/>\n                  pursuant to Section 6.6 of the Share Provisions;<\/p>\n<p>                  &#8220;LIQUIDATION CALL RIGHT&#8221; has the meaning ascribed thereto in<br \/>\n                  the Plan of Arrangement;<\/p>\n<p>                  &#8220;LIQUIDATION EVENT&#8221; has the meaning ascribed thereto in<br \/>\n                  Section 3.12(b);<\/p>\n<p>                  &#8220;LIQUIDATION EVENT EFFECTIVE DATE&#8221; has the meaning ascribed<br \/>\n                  thereto in Section 3.12(c);<\/p>\n<p>                  &#8220;NEWCO&#8221; means  610380 B.C.  Inc., a company  existing  under<br \/>\n                  the laws of the Province of British  Columbia which is a<br \/>\n                  wholly owned subsidiary of Redback;<\/p>\n<p>                  &#8220;NNM&#8221; means the distinct tier of The Nasdaq Stock Market<br \/>\n                  referred to as the Nasdaq National Market;<\/p>\n<p>                                       4<\/p>\n<p>                  &#8220;OFFICER&#8217;S CERTIFICATE&#8221; means, with respect to Redback or<br \/>\n                  Exchangeco, as the case may be, a certificate signed by any<br \/>\n                  one of the Chairman of the Board, the Chief Executive Officer,<br \/>\n                  the President, any Senior Vice-President, any Vice-President<br \/>\n                  or any other senior officer of Redback or Exchangeco, as the<br \/>\n                  case may be;<\/p>\n<p>                  &#8220;PERSON&#8221; includes an individual, firm, partnership, joint<br \/>\n                  venture, venture capital fund, association, trust, trustee,<br \/>\n                  executor, administrator, legal personal representative,<br \/>\n                  estate, group, body corporate, corporation, company,<br \/>\n                  unincorporated association or organization, government body,<br \/>\n                  syndicate or other entity, whether or not having legal status;<\/p>\n<p>                  &#8220;PLAN OF ARRANGEMENT&#8221; means the plan of arrangement under<br \/>\n                  Section 192 of the CANADA BUSINESS CORPORATIONS ACT,<br \/>\n                  substantially in the form and content of Exhibit E annexed to<br \/>\n                  the Arrangement Agreement, and any amendments or modifications<br \/>\n                  thereto made in accordance with Section 7.1 of the Arrangement<br \/>\n                  Agreement and Article 6 of the Plan of Arrangement or made at<br \/>\n                  the direction of the Court in the Final Order;<\/p>\n<p>                  &#8220;REDBACK&#8221; means Redback Networks Inc., a corporation existing<br \/>\n                  under the laws of the State of Delaware, and any successor<br \/>\n                  corporation thereto;<\/p>\n<p>                  &#8220;REDBACK AFFILIATES&#8221; means Affiliates of Redback;<\/p>\n<p>                  &#8220;REDBACK COMMON SHARE&#8221; means a share of common stock, par<br \/>\n                  value US $0.0001, in the capital of Redback, and any other<br \/>\n                  securities into which such share may be changed;<\/p>\n<p>                  &#8220;REDBACK SUCCESSOR&#8221; has the meaning ascribed thereto in<br \/>\n                  Section 8.1(a);<\/p>\n<p>                  &#8220;REDEMPTION CALL RIGHT&#8221; has the meaning ascribed thereto in<br \/>\n                  the Plan of Arrangement;<\/p>\n<p>                  &#8220;REGISTRATION RIGHTS AGREEMENT&#8221; means the Registration Rights<br \/>\n                  Agreement to be entered into between Redback and Andrew<br \/>\n                  Waitman, as agent for and on behalf of each of the Persons<br \/>\n                  entitled to receive Exchangeable Shares pursuant to<\/p>\n<p>                                       5<\/p>\n<p>                  the Plan of Arrangement, substantially in the form and content<br \/>\n                  of Exhibit H annexed to the Arrangement Agreement, with such<br \/>\n                  changes thereto as the parties thereto, acting reasonably, may<br \/>\n                  agree upon, in accordance with the terms thereof;<\/p>\n<p>                  &#8220;RETRACTED SHARES&#8221; has the meaning ascribed thereto in<br \/>\n                  Section 3.7;<\/p>\n<p>                  &#8220;RETRACTION CALL RIGHT&#8221; has the meaning ascribed thereto in<br \/>\n                  the Share Provisions;<\/p>\n<p>                  &#8220;SHARE PROVISIONS&#8221; means the rights, privileges, restrictions<br \/>\n                  and conditions attaching to the Exchangeable Shares as set<br \/>\n                  forth in Appendix 1 to the Plan of Arrangement;<\/p>\n<p>                  &#8220;SUPPORT AGREEMENT&#8221; means the Support Agreement among Redback,<br \/>\n                  Newco and Exchangeco to be entered into in connection with the<br \/>\n                  Plan of Arrangement, substantially in the form and content of<br \/>\n                  Exhibit G annexed to the Arrangement Agreement, with such<br \/>\n                  changes thereto as the parties thereto, acting reasonably may<br \/>\n                  agree upon, in accordance with the terms thereof;<\/p>\n<p>                  &#8220;TRUST&#8221; means the trust created by this Agreement;<\/p>\n<p>                  &#8220;TRUST ESTATE&#8221; means the Exchange Right, the Automatic<br \/>\n                  Exchange Rights and any money or other property which may be<br \/>\n                  held by the Trustee from time to time pursuant to this<br \/>\n                  Agreement; and<\/p>\n<p>                  &#8220;TRUSTEE&#8221; means Montreal Trust Company of Canada, a<br \/>\n                  corporation organized and existing under the federal laws of<br \/>\n                  Canada and authorized to carry on the business of a trust<br \/>\n                  company in each of the provinces of Canada and, subject to the<br \/>\n                  provisions of Section 7.0, includes any successor trustee.<\/p>\n<p>1.2      INTERPRETATION NOT AFFECTED BY HEADINGS. The division of this<br \/>\nAgreement into sections and the insertion of headings are for convenience of<br \/>\nreference only and shall not affect the construction or interpretation of this<br \/>\nAgreement. Unless otherwise indicated, all references to a &#8220;section&#8221; followed by<br \/>\na number and\/or a letter refer to the specified section of this Agreement. The<br \/>\nterms &#8220;this Agreement&#8221;, &#8220;hereof&#8221;, &#8220;herein&#8221; and &#8220;hereunder&#8221; and similar<br \/>\nexpressions refer to<\/p>\n<p>                                       6<\/p>\n<p>this Agreement and not to any particular, section or other portion hereof and<br \/>\ninclude any agreement or instrument supplementary or ancillary hereto.<\/p>\n<p>1.3      NUMBER, GENDER AND PERSONS. In this Agreement, unless the context<br \/>\notherwise requires, words importing the singular number only shall include the<br \/>\nplural and VICE VERSA and words importing any gender shall include all genders.<\/p>\n<p>1.4      DATE FOR ANY ACTION. If any date on which any action is required to<br \/>\nbe taken under this Agreement is not a Business Day, such action shall be<br \/>\nrequired to be taken on the next succeeding Business Day.<\/p>\n<p>2.0      PURPOSE OF AGREEMENT<\/p>\n<p>2.1      ESTABLISHMENT OF TRUST. The purpose of this Agreement is to create<br \/>\nthe Trust for the benefit of the Beneficiaries, as herein provided. The Trustee<br \/>\nwill hold the Exchange Right and the Automatic Exchange Rights to enable the<br \/>\nTrustee to exercise such rights, in each case as trustee for and on behalf of<br \/>\nthe Beneficiaries as provided in this Agreement.<\/p>\n<p>3.0      EXCHANGE RIGHT AND AUTOMATIC EXCHANGE<\/p>\n<p>3.1      GRANT AND OWNERSHIP OF THE EXCHANGE RIGHT. Redback hereby grants to<br \/>\nthe Trustee as trustee for and on behalf of, and for the use and benefit of, the<br \/>\nBeneficiaries the right (the &#8220;EXCHANGE RIGHT&#8221;), upon the occurrence and during<br \/>\nthe continuance of an Insolvency Event, to require Redback to purchase from each<br \/>\nor any Beneficiary all or any part of the Exchangeable Shares held by the<br \/>\nBeneficiary and the Automatic Exchange Rights, all in accordance with the<br \/>\nprovisions of this Agreement. Redback hereby acknowledges receipt from the<br \/>\nTrustee, as trustee for and on behalf of the Beneficiaries, of good and valuable<br \/>\nconsideration (and the adequacy thereof) for the grant of the Exchange Right and<br \/>\nthe Automatic Exchange Rights by Redback to the Trustee. During the term of the<br \/>\nTrust, and subject to the terms and conditions of this Agreement, the Trustee<br \/>\nshall possess and be vested with full legal ownership of the Exchange Right and<br \/>\nthe Automatic Exchange Rights and shall be entitled to exercise all of the<br \/>\nrights and powers of an owner with respect to the Exchange Right and the<br \/>\nAutomatic Exchange Rights, provided that the Trustee shall:<\/p>\n<p>         (a)      hold the Exchange Right and the Automatic Exchange<br \/>\n                  Rights and the legal title thereto as trustee solely for the<br \/>\n                  use and benefit of the Beneficiaries in accordance with the<br \/>\n                  provisions of this Agreement; and<\/p>\n<p>                                       7<\/p>\n<p>         (b)      except as specifically authorized by this Agreement,<br \/>\n                  have no power or authority to exercise or otherwise deal in or<br \/>\n                  with the Exchange Right or the Automatic Exchange Rights, and<br \/>\n                  the Trustee shall not exercise any such rights for any purpose<br \/>\n                  other than the purposes for which the Trust is created<br \/>\n                  pursuant to this Agreement.<\/p>\n<p>3.2      LEGENDED SHARE CERTIFICATES.  Exchangeco will cause each certificate<br \/>\nrepresenting Exchangeable Shares to bear an appropriate legend notifying the<br \/>\nBeneficiaries of:<\/p>\n<p>         (a)      their  right to  instruct  the Trustee with respect to the<br \/>\n                  exercise  of the  Exchange  Right in  respect  of the<br \/>\n                  Exchangeable Shares held by a Beneficiary; and<\/p>\n<p>         (b)      the Automatic Exchange Rights.<\/p>\n<p>3.3      GENERAL EXERCISE OF EXCHANGE RIGHT. The Exchange Right shall be and<br \/>\nremain vested in and exercisable by the Trustee. Subject to Section 4.15, the<br \/>\nTrustee shall exercise the Exchange Right only on the basis of instructions<br \/>\nreceived pursuant to this Section 3.0 from Beneficiaries entitled to instruct<br \/>\nthe Trustee as to the exercise thereof. To the extent that no instructions are<br \/>\nreceived from a Beneficiary with respect to the Exchange Right, the Trustee<br \/>\nshall not exercise or permit the exercise of the Exchange Right.<\/p>\n<p>3.4      PURCHASE PRICE. The purchase price payable by Redback for each<br \/>\nExchangeable Share to be purchased by Redback under the Exchange Right shall be<br \/>\nan amount per share equal to (a) the Current Market Price on the last Business<br \/>\nDay prior to the day of closing of the purchase and sale of such Exchangeable<br \/>\nShare under the Exchange Right, which shall be satisfied in full by Redback<br \/>\ncausing to be sent to such holder one Redback Common Share, plus (b) to the<br \/>\nextent not paid by Exchangeco, an additional amount equivalent to the full<br \/>\namount of all declared and unpaid dividends on each such Exchangeable Share held<br \/>\nby such holder on any dividend record date which occurred prior to the closing<br \/>\nof the purchase and sale. The purchase price for each such Exchangeable Share so<br \/>\npurchased may be satisfied only by Redback issuing and delivering or causing to<br \/>\nbe delivered to the Trustee, on behalf of the relevant Beneficiary, one Redback<br \/>\nCommon Share and, on the applicable payment date, a cheque for the balance, if<br \/>\nany, of the purchase price without interest (but less any amounts withheld<br \/>\npursuant to Section 3.13). Upon payment by Redback of such purchase price, the<br \/>\nrelevant Beneficiary shall cease to have any right to be paid any amount in<br \/>\nrespect of declared and unpaid dividends on each such Exchangeable Share by<br \/>\nExchangeco.<\/p>\n<p>                                       8<\/p>\n<p>3.5      EXERCISE INSTRUCTIONS. Subject to the terms and conditions herein set<br \/>\nforth, a Beneficiary shall be entitled, upon the occurrence and during the<br \/>\ncontinuance of an Insolvency Event, to instruct the Trustee to exercise the<br \/>\nExchange Right with respect to all or any part of the Exchangeable Shares<br \/>\nregistered in the name of such Beneficiary on the books of Exchangeco. To cause<br \/>\nthe exercise of the Exchange Right by the Trustee, the Beneficiary shall deliver<br \/>\nto the Trustee, in person or by certified or registered mail, at its principal<br \/>\ncorporate trust office in Vancouver, British Columbia or at such other places in<br \/>\nCanada as the Trustee may from time to time designate by written notice to the<br \/>\nBeneficiaries, the certificates representing the Exchangeable Shares which such<br \/>\nBeneficiary desires Redback to purchase, duly endorsed in blank for transfer,<br \/>\nand accompanied by such other documents and instruments as may be required to<br \/>\neffect a transfer of Exchangeable Shares under the Company Act and the articles<br \/>\nof Exchangeco and such additional documents and instruments as the Trustee,<br \/>\nRedback or Exchangeco may reasonably require together with (a) a duly completed<br \/>\nform of notice of exercise of the Exchange Right, contained on the reverse of or<br \/>\nattached to the Exchangeable Share certificates, stating (i) that the<br \/>\nBeneficiary thereby instructs the Trustee to exercise the Exchange Right so as<br \/>\nto require Redback to purchase from the Beneficiary the number of Exchangeable<br \/>\nShares specified therein, (ii) that the Beneficiary has good title to and owns<br \/>\nall such Exchangeable Shares to be acquired by Redback free and clear of all<br \/>\nliens, claims and encumbrances, (iii) the names in which the certificates<br \/>\nrepresenting Redback Common Shares issuable in connection with the exercise of<br \/>\nthe Exchange Right are to be issued, and (iv) the names and addresses of the<br \/>\npersons to whom such new certificates should be delivered and (b) payment (or<br \/>\nevidence satisfactory to the Trustee, Exchangeco and Redback of payment) of the<br \/>\ntaxes (if any) payable as contemplated by Section 3.8 of this Agreement. If only<br \/>\na part of the Exchangeable Shares represented by any certificate or certificates<br \/>\ndelivered to the Trustee are to be purchased by Redback under the Exchange<br \/>\nRight, a new certificate for the balance of such Exchangeable Shares shall be<br \/>\nissued to the holder at the expense of Exchangeco.<\/p>\n<p>3.6      DELIVERY OF REDBACK COMMON SHARES; EFFECT OF EXERCISE. Promptly after<br \/>\nreceipt of the certificates representing the Exchangeable Shares which the<br \/>\nBeneficiary desires Redback to purchase under the Exchange Right, together with<br \/>\nall documents and instruments of transfer and a duly completed form of notice of<br \/>\nexercise of the Exchange Right (and payment of taxes, if any, payable as<br \/>\ncontemplated by Section 3.8 or evidence of such payment), duly endorsed for<br \/>\ntransfer to Redback, the Trustee shall notify Redback and Exchangeco of its<br \/>\nreceipt of the same, which notice to Redback and Exchangeco shall constitute<br \/>\nexercise of the Exchange Right by the Trustee on behalf of the holder of such<br \/>\nExchangeable Shares, and Redback shall<\/p>\n<p>                                       9<\/p>\n<p>promptly thereafter deliver or cause to be delivered to the Trustee, for<br \/>\ndelivery to the Beneficiary of such Exchangeable Shares (or to such other<br \/>\npersons, if any, properly designated by such Beneficiary) the number of Redback<br \/>\nCommon Shares issuable in connection with the exercise of the Exchange Right,<br \/>\nwhich shares shall be duly issued as fully paid and non-assessable and shall be<br \/>\nfree and clear of all liens, charges and encumbrances, and on the applicable<br \/>\npayment date cheques for the balance, if any, of the total purchase price<br \/>\ntherefor without interest (but less any amounts withheld pursuant to Section<br \/>\n3.13); provided, however, that no such delivery shall be made unless and until<br \/>\nthe Beneficiary requesting the same shall have paid (or provided evidence<br \/>\nsatisfactory to the Trustee, Exchangeco and Redback of the payment of) the taxes<br \/>\n(if any) payable as contemplated by Section 3.8 of this Agreement. Immediately<br \/>\nupon the giving of notice by the Trustee to Redback and Exchangeco of the<br \/>\nexercise of the Exchange Right as provided in this Section 3.6, the closing of<br \/>\nthe transaction of purchase and sale contemplated by the Exchange Right shall be<br \/>\ndeemed to have occurred and the holder of such Exchangeable Shares shall be<br \/>\ndeemed to have transferred to Redback all of such holder&#8217;s right, title and<br \/>\ninterest in and to such Exchangeable Shares and the related interest in the<br \/>\nTrust Estate and shall cease to be a holder of such Exchangeable Shares and<br \/>\nshall not be entitled to exercise any of the rights of a holder in respect<br \/>\nthereof, other than the right to receive the purchase price therefor, unless the<br \/>\npurchase price is not delivered by Redback to the Trustee within five Business<br \/>\nDays of the date of the giving of such notice by the Trustee, in which case the<br \/>\nrights of the Beneficiary shall remain unaffected until the purchase price is so<br \/>\ndelivered by Redback. Upon delivery by Redback to the Trustee of such purchase<br \/>\nprice, the Trustee shall deliver such purchase price to such Beneficiary (or to<br \/>\nsuch other persons, if any, properly designated by such Beneficiary).<br \/>\nConcurrently with such Beneficiary ceasing to be a holder of Exchangeable<br \/>\nShares, the Beneficiary shall be considered and deemed for all purposes to be<br \/>\nthe holder of the Redback Common Shares delivered to it pursuant to the Exchange<br \/>\nRight.<\/p>\n<p>3.7      EXERCISE OF EXCHANGE RIGHT SUBSEQUENT TO RETRACTION. In the event<br \/>\nthat a Beneficiary has exercised its right under Article 6 of the Share<br \/>\nProvisions to require Exchangeco to redeem any or all of the Exchangeable Shares<br \/>\nheld by the Beneficiary (the &#8220;RETRACTED SHARES&#8221;) and is notified by Exchangeco<br \/>\npursuant to Section 6.6 of the Share Provisions that Exchangeco will not be<br \/>\npermitted as a result of solvency requirements or other provisions of applicable<br \/>\nlaw to redeem all such Retracted Shares, and provided that Newco shall not have<br \/>\nexercised the Retraction Call Right with respect to the Retracted Shares and<br \/>\nthat the Beneficiary has not revoked the retraction request delivered by the<br \/>\nBeneficiary to Exchangeco pursuant to Section 6.1 of the Share Provisions, and<br \/>\nprovided further that the Trustee has received written notice of the same from<br \/>\nRedback or Exchangeco (which, in such circumstances, Redback hereby<\/p>\n<p>                                       10<\/p>\n<p>undertakes to give or cause to be given to the Trustee), the retraction request<br \/>\nwill constitute and will be deemed to constitute notice from the Beneficiary to<br \/>\nthe Trustee instructing the Trustee to exercise the Exchange Right with respect<br \/>\nto those Retracted Shares that Exchangeco is unable to redeem. In any such<br \/>\nevent, Exchangeco hereby agrees with the Trustee and in favour of the<br \/>\nBeneficiary promptly to forward or cause to be forwarded to the Trustee all<br \/>\nrelevant materials delivered by the Beneficiary to Exchangeco or to the transfer<br \/>\nagent of the Exchangeable Shares (including without limitation, a copy of the<br \/>\nretraction request delivered pursuant to Section 6.1 of the Share Provisions) in<br \/>\nconnection with such proposed redemption of the Retracted Shares and the Trustee<br \/>\nwill thereupon exercise the Exchange Right with respect to the Retracted Shares<br \/>\nthat Exchangeco is not permitted to redeem and will require Redback to purchase<br \/>\nsuch shares in accordance with the provisions of this Section 3.0.<\/p>\n<p>3.8      STAMP OR OTHER TRANSFER TAXES. Upon any sale of Exchangeable Shares<br \/>\nto Redback pursuant to the Exchange Right or the Automatic Exchange Rights, the<br \/>\nshare certificate or certificates representing Redback Common Shares to be<br \/>\ndelivered in connection with the payment of the total purchase price therefor<br \/>\nshall be issued in the name of the Beneficiary of the Exchangeable Shares so<br \/>\nsold or in such names as such Beneficiary may otherwise direct in writing<br \/>\nwithout charge to the holder of the Exchangeable Shares so sold; provided,<br \/>\nhowever, that such Beneficiary (a) shall pay (and none of Redback, Exchangeco or<br \/>\nthe Trustee shall be required to pay) any documentary, stamp, transfer or other<br \/>\ntaxes that may be payable in respect of any transfer involved in the issuance or<br \/>\ndelivery of such shares to a person other than such Beneficiary or (b) shall<br \/>\nhave provided evidence to the satisfaction of the Trustee, Redback and<br \/>\nExchangeco that such taxes, if any, have been paid in full.<\/p>\n<p>3.9      NOTICE OF INSOLVENCY EVENT. As soon as practicable following the<br \/>\noccurrence of an Insolvency Event or any event that with the giving of notice or<br \/>\nthe passage of time or both would be an Insolvency Event, Exchangeco and Redback<br \/>\nshall give written notice thereof to the Trustee. As soon as practicable<br \/>\nfollowing the receipt of notice from Exchangeco and Redback of the occurrence of<br \/>\nan Insolvency Event, or upon the Trustee becoming aware of an Insolvency Event,<br \/>\nthe Trustee will mail to each Beneficiary, at the expense of Redback, a notice<br \/>\nof such Insolvency Event, which notice shall contain a brief statement of the<br \/>\nrights of the Beneficiaries with respect to the Exchange Right.<\/p>\n<p>3.10     QUALIFICATION OF REDBACK COMMON SHARES. Redback covenants that if any<br \/>\nRedback Common Shares to be issued and delivered pursuant to the Exchange Right<br \/>\nor the Automatic Exchange Rights require registration or qualification with or<br \/>\napproval of or the filing<\/p>\n<p>                                       11<\/p>\n<p>of any document, including any prospectus or similar document, or the taking of<br \/>\nany proceeding with or the obtaining of any order, ruling or consent from any<br \/>\ngovernmental or regulatory authority (i) under any Canadian provincial<br \/>\nsecurities or other law or regulation or pursuant to the rules and regulations<br \/>\nof any securities or other regulatory authority applicable to holders who are<br \/>\nresident in the Provinces of Alberta, Ontario or British Columbia, or (ii) under<br \/>\nany United States federal or state securities or other law or regulation or<br \/>\npursuant to the rules and regulations of any United States securities or other<br \/>\nregulatory authority before such shares (or such other shares or securities) may<br \/>\nbe issued by Redback and delivered by Redback to the holder of surrendered<br \/>\nExchangeable Shares or in order that such shares (or such other shares or<br \/>\nsecurities) may be freely traded thereafter through the facilities of a stock<br \/>\nexchange or market in the United States or through the NNM provided that such<br \/>\nfirst trade is made in accordance with the rules of the stock exchange or market<br \/>\nupon which the trade is made or the rules of the NNM in accordance with all laws<br \/>\napplicable to that stock exchange or market or applicable to the NNM (other than<br \/>\nany restrictions of general application on transfer by reason of a holder being<br \/>\na &#8220;control person&#8221; of Redback for purposes of Canadian provincial securities law<br \/>\nor an &#8220;affiliate&#8221; of Redback for purposes of United States federal or state<br \/>\nsecurities law) Redback will in good faith expeditiously take all such actions<br \/>\nand do all such things as are necessary or desirable to cause such Redback<br \/>\nCommon Shares (or such other shares or securities) to be and remain duly<br \/>\nregistered, qualified or approved under United States and\/or Canadian law, as<br \/>\nthe case may be provided that nothing herein shall require Redback to prepare,<br \/>\nfile with the United States Securities and Exchange Commission or maintain a<br \/>\nregistration statement, prospectus or similar document with regard to such<br \/>\nshares or otherwise qualify such shares to be freely tradeable in the United<br \/>\nStates except in accordance with the terms of the Registration Rights Agreement.<br \/>\nRedback will in good faith expeditiously take all such actions and do all such<br \/>\nthings as are reasonably necessary or desirable to cause all Redback Common<br \/>\nShares (or such other shares or securities) to be delivered pursuant to the<br \/>\nExchange Right or the Automatic Exchange Rights to be listed, quoted or posted<br \/>\nfor trading on all stock exchanges and quotation systems on which outstanding<br \/>\nRedback Common Shares (or such other shares or securities) have been listed by<br \/>\nRedback and remain listed and are quoted or posted for trading at such time.<\/p>\n<p>3.11     REDBACK COMMON SHARES. Redback hereby represents and warrants that it<br \/>\nhas irrevocably reserved for issuance and will, at all times while any<br \/>\nExchangeable Shares (other than Exchangeable Shares held by Redback or its<br \/>\nAffiliates) are outstanding keep available, free from pre-emptive and other<br \/>\nrights, out of is authorized and unissued capital stock, such number of Redback<br \/>\nCommon Shares (or other shares or securities into which Redback Common Shares<br \/>\nmay be reclassified or changed) as are now and may hereafter be required to<br \/>\nenable and permit<\/p>\n<p>                                       12<\/p>\n<p>Redback to meet its obligations under this Agreement and the Support Agreement,<br \/>\nto enable and permit Newco to meet its obligations under each of the Liquidation<br \/>\nCall Right, the Retraction Call Right and the Redemption Call Right, and to<br \/>\nenable and permit Exchangeco to meet its obligations under this Agreement and<br \/>\nthe Share Provisions.<\/p>\n<p>3.12     AUTOMATIC EXCHANGE ON LIQUIDATION OF REDBACK<\/p>\n<p>         (a)      Redback will give the Trustee notice of each of the following<br \/>\n                  events at the time set forth below:<\/p>\n<p>                  (i)      in the event of any determination by the board<br \/>\n                           of directors of Redback to institute voluntary<br \/>\n                           liquidation, dissolution or winding-up proceedings<br \/>\n                           with respect to Redback or to effect any other<br \/>\n                           distribution of assets of Redback among its<br \/>\n                           shareholders for the purpose of winding up its<br \/>\n                           affairs, as soon as practicable and in any event at<br \/>\n                           least 60 days prior to the proposed effective date of<br \/>\n                           such liquidation, dissolution, winding-up or other<br \/>\n                           distribution; and<\/p>\n<p>                  (ii)     as soon as practicable following the earlier of<br \/>\n                           (A) receipt by Redback of notice of, and (B) Redback<br \/>\n                           otherwise becoming aware of, any threatened or<br \/>\n                           instituted claim, suit, petition or other proceedings<br \/>\n                           with respect to the involuntary liquidation,<br \/>\n                           dissolution or winding-up of Redback or to effect any<br \/>\n                           other distribution of assets of Redback among its<br \/>\n                           shareholders for the purpose of winding up its<br \/>\n                           affairs.<\/p>\n<p>         (b)      As soon as practicable following receipt by the Trustee<br \/>\n                  from Redback of notice of any event (a &#8220;LIQUIDATION EVENT&#8221;)<br \/>\n                  contemplated by Section 3.12(a)(i) or (ii) above, the Trustee,<br \/>\n                  will give notice thereof to the Beneficiaries. Such notice<br \/>\n                  shall include a brief description of the automatic exchange of<br \/>\n                  Exchangeable Shares for Redback Common Shares provided for in<br \/>\n                  Section 3.12(c).<\/p>\n<p>         (c)      In order that the Beneficiaries will be able to participate on<br \/>\n                  a PRO RATA basis with the holders of Redback Common Shares<br \/>\n                  in the distribution of assets of Redback in connection with<br \/>\n                  a Liquidation Event, on the fifth Business Day prior to the<br \/>\n                  effective date (the &#8220;LIQUIDATION EVENT EFFECTIVE DATE&#8221;) of a<br \/>\n                  Liquidation Event all of the then outstanding Exchangeable<br \/>\n                  Shares shall be automatically exchanged for Redback Common<br \/>\n                    Shares. To effect such automatic exchange, Redback shall<\/p>\n<p>                                       13<\/p>\n<p>                  purchase on the fifth Business Day prior to the Liquidation<br \/>\n                  Event Effective Date each Exchangeable Share then<br \/>\n                  outstanding and held by the Beneficiaries, and each<br \/>\n                  Beneficiary shall sell the Exchangeable Shares held by it at<br \/>\n                  such time, for a purchase price per share equal to (a) the<br \/>\n                  Current Market Price of a Redback Common Share on the fifth<br \/>\n                  Business Day prior to the Liquidation Event Effective Date,<br \/>\n                  which shall be satisfied in full by Redback issuing to the<br \/>\n                  Beneficiary one Redback Common Share, and (b) to the extent<br \/>\n                  not paid by Exchangeco, an additional amount equivalent to<br \/>\n                  the full amount of all declared and unpaid dividends on each<br \/>\n                  such Exchangeable Share held by such holder on any dividend<br \/>\n                  record date which occurred prior to the date of the<br \/>\n                  exchange.<\/p>\n<p>         (d)      On the fifth Business Day prior to the  Liquidation  Event<br \/>\n                  Effective Date, the closing of the transaction of purchase<br \/>\n                  and sale contemplated by the automatic exchange of<br \/>\n                  Exchangeable Shares for Redback Common Shares shall be<br \/>\n                  deemed to have occurred, and each Beneficiary shall be<br \/>\n                  deemed to have transferred to Redback all of the<br \/>\n                  Beneficiary&#8217;s right, title and interest in and to such<br \/>\n                  Beneficiary&#8217;s Exchangeable Shares, the related interest in<br \/>\n                  the Trust Estate and any right of each such Beneficiary to<br \/>\n                  receive declared and unpaid dividends from Exchangeco and<br \/>\n                  each such Beneficiary shall cease to be a holder of such<br \/>\n                  Exchangeable Shares and Redback shall issue to the<br \/>\n                  Beneficiary the Redback Common Shares issuable upon the<br \/>\n                  automatic exchange of Exchangeable Shares for Redback Common<br \/>\n                  Shares, which shares shall be duly issued as fully paid and<br \/>\n                  non-assessable and shall be free and clear of all liens,<br \/>\n                  charges and encumbrances, and on the applicable payment date<br \/>\n                  shall deliver to the Trustee for delivery to the Beneficiary<br \/>\n                  a cheque for the balance, if any, of the total purchase<br \/>\n                  price for such Exchangeable Shares without interest but less<br \/>\n                  any amounts withheld pursuant to Section 3.13. Concurrently<br \/>\n                  with such Beneficiary ceasing to be a holder of Exchangeable<br \/>\n                  Shares, the Beneficiary shall be considered and deemed for<br \/>\n                  all purposes to be the holder of the Redback Common Shares<br \/>\n                  issued pursuant to the automatic exchange of Exchangeable<br \/>\n                  Shares for Redback Common Shares and the certificates held<br \/>\n                  by the Beneficiary previously representing the Exchangeable<br \/>\n                  Shares exchanged by the Beneficiary with Redback pursuant to<br \/>\n                  such automatic exchange shall thereafter be deemed to<br \/>\n                  represent Redback Common Shares issued to the Beneficiary by<br \/>\n                  Redback pursuant to such automatic exchange. Upon the<br \/>\n                  request of a Beneficiary and the surrender by the<br \/>\n                  Beneficiary of Exchangeable Share certificates deemed to<br \/>\n                  represent Redback Common Shares, duly endorsed<\/p>\n<p>                                       14<\/p>\n<p>                  in blank and accompanied by such instruments of transfer as<br \/>\n                  Redback may reasonably require, Redback shall deliver or cause<br \/>\n                  to be delivered to the Beneficiary certificates representing<br \/>\n                  the Redback Common Shares of which the Beneficiary is the<br \/>\n                  holder.<\/p>\n<p>3.13     WITHHOLDING RIGHTS. Each of Redback, Exchangeco and the Trustee shall<br \/>\nbe entitled to deduct and withhold from any consideration payable under this<br \/>\nAgreement to any holder of Exchangeable Shares such amounts as Redback,<br \/>\nExchangeco or the Trustee is required to deduct and withhold with respect to<br \/>\nsuch payment under the INCOME TAX ACT (Canada), the United States Internal<br \/>\nRevenue Code of 1986 or any provision of provincial, state, local or foreign tax<br \/>\nlaw, in each case as amended. To the extent that amounts are so withheld, such<br \/>\nwithheld amounts shall be treated for all purposes as having been paid to the<br \/>\nholder of the shares in respect of which such deduction and withholding was<br \/>\nmade, provided that such withheld amounts are actually remitted to the<br \/>\nappropriate taxing authority. To the extent that the amount so required to be<br \/>\ndeducted or withheld from any payment to a holder exceeds the cash portion of<br \/>\nthe consideration otherwise payable to the holder, Redback, Exchangeco and the<br \/>\nTrustee are hereby authorized to sell or otherwise dispose of such portion of<br \/>\nthe consideration as is necessary to provide sufficient funds to Redback,<br \/>\nExchangeco or the Trustee, as the case may be, to enable it to comply with such<br \/>\ndeduction or withholding requirement and Redback, Exchangeco or the Trustee<br \/>\nshall notify the holder thereof and remit to such holder any unapplied balance<br \/>\nof the net proceeds of such sale.<\/p>\n<p>3.14     INCUMBENCY CERTIFICATE. Each of Redback and Exchangeco shall file<br \/>\nwith the Trustee a certificate of incumbency setting forth the names of the<br \/>\nindividuals authorized to give instructions, directions or other instruments to<br \/>\nthe Trustee (each an &#8220;AUTHORIZED PERSON&#8221;), together with specimen signatures of<br \/>\nsuch persons, and the Trustee shall be entitled to rely on the latest<br \/>\ncertificate of incumbency filed with it unless it receives notice, in accordance<br \/>\nwith Section 11.3 of this Agreement, of a change in Authorized Persons with<br \/>\nupdated specimen signatures.<\/p>\n<p>                                       15<\/p>\n<p>4.0      CONCERNING THE TRUSTEE<br \/>\n4.1      POWERS AND DUTIES OF THE TRUSTEE. The rights, powers, duties and<br \/>\nauthorities of the Trustee under this Agreement, in its capacity as Trustee of<br \/>\nthe Trust, shall include:<\/p>\n<p>         (a)      receiving the grant of the Exchange Right and the Automatic<br \/>\n                  Exchange Rights from Redback as Trustee for and on behalf of<br \/>\n                  the Beneficiaries in accordance with the provisions of this<br \/>\n                  Agreement;<\/p>\n<p>         (b)      exercising the Exchange Right and enforcing the benefit of the<br \/>\n                  Automatic Exchange Rights, in each case in accordance with the<br \/>\n                  provisions of this Agreement, and in connection therewith<br \/>\n                  receiving from Beneficiaries Exchangeable Shares and other<br \/>\n                  requisite documents and distributing to such Beneficiaries<br \/>\n                  Redback Common Shares and cheques, if any, to which such<br \/>\n                  Beneficiaries are entitled upon the exercise of the Exchange<br \/>\n                  Right or pursuant to the Automatic Exchange Rights, as the<br \/>\n                  case may be;<\/p>\n<p>         (c)      holding title to the Trust Estate;<\/p>\n<p>         (d)      investing any moneys forming, from time to time, a part of the<br \/>\n                  Trust Estate as provided in this Agreement;<\/p>\n<p>         (e)      taking action on its own initiative or at the direction of a<br \/>\n                  Beneficiary or Beneficiaries to enforce the obligations of<br \/>\n                  Redback and Exchangeco under this Agreement; and<\/p>\n<p>         (f)      taking such other actions and doing such other things as are<br \/>\n                  specifically provided in this Agreement.<\/p>\n<p>         In the exercise of such rights, powers, duties and authorities the<br \/>\nTrustee shall have (and is granted) such incidental and additional rights,<br \/>\npowers, duties and authority not in conflict with any of the provisions of this<br \/>\nAgreement as the Trustee, acting in good faith and in the reasonable exercise of<br \/>\nits discretion, may deem necessary, appropriate or desirable to effect the<br \/>\npurpose of the Trust. Any exercise of such discretionary rights, powers, duties<br \/>\nand authorities by the Trustee shall be final, conclusive and binding upon all<br \/>\npersons.<\/p>\n<p>                                       16<\/p>\n<p>         The Trustee in exercising its rights, powers, duties and authorities<br \/>\nhereunder shall act honestly and in good faith and with a view to the best<br \/>\ninterests of the Beneficiaries and shall exercise the care, diligence and skill<br \/>\nthat a reasonably prudent trustee would exercise in comparable circumstances.<\/p>\n<p>4.2      NO CONFLICT OF INTEREST. The Trustee represents to Redback and<br \/>\nExchangeco that at the date of execution and delivery of this Agreement there<br \/>\nexists no material conflict of interest in the role of the Trustee as fiduciary<br \/>\nhereunder and the role of the Trustee in any other capacity. The Trustee shall,<br \/>\nwithin 30 days after it becomes aware that such material conflict of interest<br \/>\nexists, either eliminate such material conflict of interest or resign in the<br \/>\nmanner and with the effect specified in Section 7.0. If, notwithstanding the<br \/>\nforegoing provisions of this Section 4.2, the Trustee has such a material<br \/>\nconflict of interest, the validity and enforceability of this Agreement shall<br \/>\nnot be affected in any manner whatsoever by reason only of the existence of such<br \/>\nmaterial conflict of interest. If the Trustee contravenes the foregoing<br \/>\nprovisions of this Section 4.2, any interested party may apply to the Supreme<br \/>\nCourt of British Columbia for an order that the Trustee be replaced as Trustee<br \/>\nhereunder.<\/p>\n<p>4.3      DEALINGS WITH TRANSFER AGENTS, REGISTRARS, ETC.  Redback and Exchangeco<br \/>\nirrevocably authorize the Trustee, from time to time, to:<\/p>\n<p>         (a)      consult, communicate and otherwise deal with the respective<br \/>\n                  registrars and transfer agents, and with any such subsequent<br \/>\n                  registrar or transfer agent, of the Exchangeable Shares and<br \/>\n                  Redback Common Shares; and<\/p>\n<p>         (b)      requisition, from time to time,<\/p>\n<p>                  (i)      from any such registrar or transfer agent any<br \/>\n                           information readily available from the records<br \/>\n                           maintained by it which the Trustee may reasonably<br \/>\n                           require for the discharge of its duties and<br \/>\n                           responsibilities under this Agreement; and<\/p>\n<p>                  (ii)     from the transfer agent of Redback Common Shares, and<br \/>\n                           any subsequent transfer agent of such shares, the<br \/>\n                           share certificates issuable upon the exercise from<br \/>\n                           time to time of the Exchange Right and pursuant to<br \/>\n                           the Automatic Exchange Rights.<\/p>\n<p>                                       17<\/p>\n<p>Redback and Exchangeco irrevocably authorize their respective registrars and<br \/>\ntransfer agents to comply with all such requests. Redback covenants that it will<br \/>\nsupply its transfer agent with duly executed share certificates for the purpose<br \/>\nof completing the exercise from time to time of the Exchange Right and the<br \/>\nAutomatic Exchange Rights.<\/p>\n<p>4.4      BOOKS AND RECORDS. The Trustee shall keep available for inspection by<br \/>\nRedback and Exchangeco at the Trustee&#8217;s principal corporate trust office in<br \/>\nVancouver, British Columbia correct and complete books and records of account<br \/>\nrelating to the Trust created by this Agreement, including without limitation,<br \/>\nall relevant data relating to mailings and instructions to and from<br \/>\nBeneficiaries and all transactions pursuant to the Exchange Right and the<br \/>\nAutomatic Exchange Rights. On or before March 31, 2001, and on or before March<br \/>\n31 in every year thereafter, until the termination of the Trust pursuant to<br \/>\nSection 10.0, the Trustee shall transmit to Redback and Exchangeco a brief<br \/>\nreport, dated as of the preceding December 31, with respect to:<\/p>\n<p>         (a)      the property and funds comprising the Trust Estate as of that<br \/>\n                  date;<\/p>\n<p>         (b)      the number of exercises of the Exchange Right, if any, and the<br \/>\n                  aggregate number of Exchangeable Shares received by the<br \/>\n                  Trustee on behalf of Beneficiaries in consideration of the<br \/>\n                  issuance by Redback of Redback Common Shares in connection<br \/>\n                  with the Exchange Right, during the calendar year ended on<br \/>\n                  such December 31; and<\/p>\n<p>         (c)      any action taken by the Trustee in the performance of its<br \/>\n                  duties under this Agreement which it had not previously<br \/>\n                  reported and which, in the Trustee&#8217;s opinion, materially<br \/>\n                  affects the Trust Estate.<\/p>\n<p>4.5      INCOME TAX RETURNS AND REPORTS. The Trustee shall, to the extent<br \/>\nnecessary, prepare and file on behalf of the Trust appropriate United States and<br \/>\nCanadian income tax returns and any other returns or reports as may be required<br \/>\nby applicable law and, in connection therewith, the Trustee may obtain the<br \/>\nadvice and assistance of such accountants, legal counsel or other experts or<br \/>\nadvisors as the Trustee may consider necessary or desirable. If requested by the<br \/>\nTrustee, Redback shall retain such experts or advisors for purposes of providing<br \/>\nsuch advice and assistance.<\/p>\n<p>                                       18<\/p>\n<p>4.6      INDEMNIFICATION PRIOR TO CERTAIN ACTIONS BY TRUSTEE. The Trustee shall<br \/>\nexercise any or all of the rights, duties, powers or authorities vested in it<br \/>\nby this Agreement at the request, order or direction of any Beneficiary upon<br \/>\nsuch Beneficiary furnishing to the Trustee reasonable funding, security or<br \/>\nindemnity against the costs, expenses and liabilities which may be incurred by<br \/>\nthe Trustee therein or thereby, provided that no Beneficiary shall be obligated<br \/>\nto furnish to the Trustee any such funding, security or indemnity in connection<br \/>\nwith the exercise by the Trustee of any of its rights, duties, powers and<br \/>\nauthorities with respect to the Exchange Right pursuant to Section 3.0 and with<br \/>\nrespect to the Automatic Exchange Rights pursuant to Section 3.0, in either case<br \/>\nsubject to Section 4.15.<\/p>\n<p>         None of the provisions contained in this Agreement shall require the<br \/>\nTrustee to expend or risk its own funds or otherwise incur financial liability<br \/>\nin the exercise of any of its rights, powers, duties, or authorities unless<br \/>\nfunded, given security and indemnified as aforesaid.<\/p>\n<p>4.7      ACTION OF BENEFICIARIES. No Beneficiary shall have the right to<br \/>\ninstitute any action, suit or proceeding or to exercise any other remedy<br \/>\nauthorized by this Agreement for the purpose of enforcing any of its rights or<br \/>\nfor the execution of any trust or power hereunder unless the Beneficiary has<br \/>\nrequested the Trustee to take or institute such action, suit or proceeding and<br \/>\nfurnished the Trustee with the funding, security or indemnity referred to in<br \/>\nSection 4.6 and the Trustee shall have failed to act within a reasonable time<br \/>\nthereafter. In such case, but not otherwise, the Beneficiary shall be entitled<br \/>\nto take proceedings in any court of competent jurisdiction such as the Trustee<br \/>\nmight have taken; it being understood and intended that no one or more<br \/>\nBeneficiaries shall have any right in any manner whatsoever to affect, disturb<br \/>\nor prejudice the rights hereby created by any such action, or to enforce any<br \/>\nright hereunder or the Exchange Right or the Automatic Exchange Rights except<br \/>\nsubject to the conditions and in the manner herein provided, and that all powers<br \/>\nand trusts hereunder shall be exercised and all proceedings at law shall be<br \/>\ninstituted, had and maintained by the Trustee, except only as herein provided,<br \/>\nand in any event for the equal benefit of all Beneficiaries.<\/p>\n<p>4.8      RELIANCE UPON DECLARATIONS. The Trustee shall not be considered to be<br \/>\nin contravention of any of its rights, powers, duties and authorities hereunder<br \/>\nif, when required, it acts and relies in good faith upon statutory declarations,<br \/>\ncertificates, opinions or reports furnished pursuant to the provisions hereof or<br \/>\nrequired by the Trustee to be furnished to it in the exercise of its rights,<br \/>\npowers, duties and authorities hereunder if such statutory declarations,<br \/>\ncertificates, opinions or reports comply with the provisions of Section 4.9, if<br \/>\napplicable, and with any other applicable provisions of this Agreement.<\/p>\n<p>                                       19<\/p>\n<p>4.9      EVIDENCE AND AUTHORITY TO TRUSTEE. Redback and\/or Exchangeco shall<br \/>\nfurnish to the Trustee evidence of compliance with the conditions provided for<br \/>\nin this Agreement relating to any action or step required or permitted to be<br \/>\ntaken by Redback and\/or Exchangeco or the Trustee under this Agreement or as a<br \/>\nresult of any obligation imposed under this Agreement, including, without<br \/>\nlimitation, in respect of the Exchange Right or the Automatic Exchange Rights<br \/>\nand the taking of any other action to be taken by the Trustee at the request of<br \/>\nor on the application of Redback and\/or Exchangeco promptly if and when:<\/p>\n<p>         (a)      such  evidence is required by any other section of this<br \/>\n                  Agreement to be furnished to the Trustee in accordance with<br \/>\n                  the terms of this Section 4.9; or<\/p>\n<p>         (b)      the Trustee, in the exercise of its rights, powers, duties and<br \/>\n                  authorities under this Agreement, gives Redback and\/or<br \/>\n                  Exchangeco written notice requiring it to furnish such<br \/>\n                  evidence in relation to any particular action or obligation<br \/>\n                  specified in such notice.<\/p>\n<p>         Such evidence shall consist of an Officer&#8217;s Certificate of Redback<br \/>\nand\/or Exchangeco or a statutory declaration or a certificate made by persons<br \/>\nentitled to sign an Officer&#8217;s Certificate stating that any such condition has<br \/>\nbeen complied with in accordance with the terms of this Agreement.<\/p>\n<p>         Whenever such evidence relates to a matter other than the Exchange<br \/>\nRight or the Automatic Exchange Rights or the taking of any other action to be<br \/>\ntaken by the Trustee at the request or on the application of Redback and\/or<br \/>\nExchangeco, and except as otherwise specifically provided herein, such evidence<br \/>\nmay consist of a report or opinion of any solicitor, attorney, auditor,<br \/>\naccountant, appraiser, valuer, engineer or other expert or any other person<br \/>\nwhose qualifications give authority to a statement made by him, provided that if<br \/>\nsuch report or opinion is furnished by a director, officer or employee of<br \/>\nRedback and\/or Exchangeco it shall be in the form of an Officer&#8217;s Certificate or<br \/>\na statutory declaration.<\/p>\n<p>         Each statutory declaration, Officer&#8217;s Certificate, opinion or report<br \/>\nfurnished to the Trustee as evidence of compliance with a condition provided for<br \/>\nin this Agreement shall include a statement by the person giving the evidence:<\/p>\n<p>                                       20<\/p>\n<p>         (a)      declaring that he has read and understands the provisions of<br \/>\n                  this Agreement relating to the condition in question;<\/p>\n<p>         (b)      describing the nature and scope of the examination or<br \/>\n                  investigation upon which he based the statutory declaration,<br \/>\n                  Officer&#8217;s Certificate, statement or opinion; and<\/p>\n<p>         (c)      declaring that he has made such examination or investigation<br \/>\n                  as he believes is necessary to enable him to make the<br \/>\n                  statements or give the opinions contained or expressed<br \/>\n                  therein.<\/p>\n<p>4.10     EXPERTS, ADVISERS AND AGENTS.  The Trustee may:<\/p>\n<p>         (a)      in relation to these presents act and rely on the opinion or<br \/>\n                  advice of or information obtained from any solicitor,<br \/>\n                  attorney, auditor, accountant, appraiser, valuer, engineer or<br \/>\n                  other expert, whether retained by the Trustee or by Redback<br \/>\n                  and\/or Exchangeco or otherwise, and may employ such assistants<br \/>\n                  as may be necessary to the proper discharge of its powers and<br \/>\n                  duties and determination of its rights hereunder and may pay<br \/>\n                  proper and reasonable compensation for all such legal and<br \/>\n                  other advice or assistance referred to above; and<\/p>\n<p>         (b)      retain or employ such agents, employees and other assistants<br \/>\n                  as it may reasonably require for the proper determination and<br \/>\n                  discharge of its powers and duties hereunder, and may pay<br \/>\n                  reasonable remuneration for all services performed for it (and<br \/>\n                  shall be entitled to receive reasonable remuneration for all<br \/>\n                  services performed by it) in the discharge of the trusts<br \/>\n                  hereof and compensation for all disbursements, costs and<br \/>\n                  expenses made or incurred by it in the discharge of its duties<br \/>\n                  hereunder and in the management of the Trust.<\/p>\n<p>4.11     INVESTMENT OF MONEYS HELD BY TRUSTEE. Unless otherwise provided in this<br \/>\nAgreement, any moneys held by or on behalf of the Trustee which under the terms<br \/>\nof this Agreement may or ought to be invested or which may be on deposit with<br \/>\nthe Trustee or which may be in the hands of the Trustee shall be invested and<br \/>\nreinvested in the name or under the control of the Trustee in securities in<br \/>\nwhich, under the laws of the Province of British Columbia, trustees are<br \/>\nauthorized to invest trust moneys, provided that (i) such securities are stated<br \/>\nto mature within 180 days after their purchase by the Trustee, and (ii) the<br \/>\nTrustee is acting at the written direction of Redback or Exchangeco. Pending the<br \/>\ninvestment of any moneys <\/p>\n<p>                                       21<\/p>\n<p>as hereinbefore provided, such moneys shall be deposited in the name of the<br \/>\nTrustee in an interest-bearing segregated trust account at any chartered bank in<br \/>\nCanada or, at the direction of Exchangeco, in the deposit department of the<br \/>\nTrustee at the rate of interest then current on similar deposits. Any income<br \/>\nearned in respect of the Trust Estate which is not used by the Trustee as<br \/>\nprovided in this Agreement shall be accumulated by the Trustee and added to the<br \/>\ncapital of the Trust Estate.<\/p>\n<p>4.12     TRUSTEE NOT REQUIRED TO GIVE SECURITY. The Trustee shall not be<br \/>\nrequired to give any bond or security in respect of the execution of the trusts,<br \/>\nrights, duties, powers and authorities of this Agreement or otherwise in respect<br \/>\nof the premises.<\/p>\n<p>4.13     TRUSTEE NOT BOUND TO ACT ON REQUEST. Except as otherwise specifically<br \/>\nprovided in this Agreement, the Trustee shall not be bound to act in accordance<br \/>\nwith any direction or request of Redback and\/or Exchangeco or of the directors<br \/>\nthereof until a duly authenticated copy of the instrument or resolution<br \/>\ncontaining such direction or request shall have been delivered to the Trustee,<br \/>\nand the Trustee shall be empowered to act upon any such copy purporting to be<br \/>\nauthenticated and believed by the Trustee to be genuine.<\/p>\n<p>4.14     AUTHORITY TO CARRY ON BUSINESS. The Trustee represents to Redback and<br \/>\nExchangeco that, at the date of execution and delivery by it of this Agreement,<br \/>\nit is authorized to carry on the business of a trust company in each of the<br \/>\nProvinces of Canada but if, notwithstanding the provisions of this Section 4.14,<br \/>\nit ceases to be so authorized to carry on business, the validity and<br \/>\nenforceability of this Agreement, the Exchange Right and the Automatic Exchange<br \/>\nRights shall not be affected in any manner whatsoever by reason only of such<br \/>\nevent but the Trustee shall, within 30 days after ceasing to be authorized to<br \/>\ncarry on the business of a trust company in any Province of Canada, either<br \/>\nbecome so authorized or resign in the manner and with the effect specified in<br \/>\nSection 7.0.<\/p>\n<p>4.15     CONFLICTING CLAIMS. If conflicting claims or demands are made or<br \/>\nasserted with respect to any interest of any Beneficiary in any Exchangeable<br \/>\nShares, including any disagreement between the heirs, representatives,<br \/>\nsuccessors or assigns succeeding to all or any part of the interest of any<br \/>\nBeneficiary in any Exchangeable Shares, resulting in conflicting claims or<br \/>\ndemands being made in connection with such interest, then the Trustee shall be<br \/>\nentitled, at its sole discretion, to refuse to recognize or to comply with any<br \/>\nsuch claims or demands. In so refusing, the Trustee may elect not to exercise<br \/>\nthe Exchange Right or any Automatic Exchange Rights subject to such conflicting<br \/>\nclaims or demands and, in so doing, the Trustee shall not be or <\/p>\n<p>                                       22<\/p>\n<p>become liable to any person on account of such election or its failure or<br \/>\nrefusal to comply with any such conflicting claims or demands. The Trustee shall<br \/>\nbe entitled to continue to refrain from acting and to refuse to act until:<\/p>\n<p>         (a)      the rights of all adverse claimants with respect to the<br \/>\n                  Exchange Right or Automatic Exchange Rights subject to such<br \/>\n                  conflicting claims or demands have been adjudicated by a final<br \/>\n                  judgment of a court of competent jurisdiction; or<\/p>\n<p>         (b)      all differences with respect to the Exchange Right or<br \/>\n                  Automatic Exchange Rights subject to such conflicting claims<br \/>\n                  or demands have been conclusively settled by a valid written<br \/>\n                  agreement binding on all such adverse claimants, and the<br \/>\n                  Trustee shall have been furnished with an executed copy of<br \/>\n                  such agreement certified to be in full force and effect.<\/p>\n<p>If the Trustee elects to recognize any claim or comply with any demand made by<br \/>\nany such adverse claimant, it may in its discretion require such claimant to<br \/>\nfurnish such surety bond or other security satisfactory to the Trustee as it<br \/>\nshall deem appropriate to fully indemnify it as between all conflicting claims<br \/>\nor demands.<\/p>\n<p>4.16     ACCEPTANCE OF TRUST. The Trustee hereby accepts the Trust created and<br \/>\nprovided for by and in this Agreement and agrees to perform the same upon the<br \/>\nterms and conditions herein set forth and to hold all rights, privileges and<br \/>\nbenefits conferred hereby and by law in trust for the various persons who shall<br \/>\nfrom time to time be Beneficiaries, subject to all the terms and conditions<br \/>\nherein set forth.<\/p>\n<p>5.0      COMPENSATION<br \/>\n5.1      FEES AND EXPENSES OF THE TRUSTEE. Redback and Exchangeco jointly and<br \/>\nseverally agree to pay the Trustee reasonable compensation for all of the<br \/>\nservices rendered by it under this Agreement and will reimburse the Trustee for<br \/>\nall reasonable expenses (including taxes other than taxes based on the net<br \/>\nincome of the Trustee) and disbursements, including the cost and expense of any<br \/>\nsuit or litigation of any character and any proceedings before any governmental<br \/>\nagency reasonably incurred by the Trustee in connection with its duties under<br \/>\nthis Agreement; provided that Redback and Exchangeco shall have no obligation to<br \/>\nreimburse the Trustee for any expenses or disbursements paid, incurred or<br \/>\nsuffered by the Trustee in any suit or litigation in which the Trustee is<br \/>\ndetermined to have acted fraudulently, in bad faith or with negligence,<br \/>\nrecklessness or wilful misconduct.<\/p>\n<p>                                       23<\/p>\n<p>6.0      INDEMNIFICATION AND LIMITATION OF LIABILITY<br \/>\n6.1      INDEMNIFICATION OF THE TRUSTEE. Redback and Exchangeco jointly and<br \/>\nseverally agree to indemnify and hold harmless the Trustee and each of its<br \/>\ndirectors, officers, employees and agents appointed and acting in accordance<br \/>\nwith this Agreement (collectively, the &#8220;INDEMNIFIED PARTIES&#8221;) against all<br \/>\nclaims, losses, damages, reasonable costs, penalties, fines and reasonable<br \/>\nexpenses (including reasonable expenses of the Trustee&#8217;s legal counsel) which,<br \/>\nwithout fraud, negligence, recklessness, wilful misconduct or bad faith on the<br \/>\npart of such Indemnified Party, may be paid, incurred or suffered by the<br \/>\nIndemnified Party by reason or as a result of the Trustee&#8217;s acceptance or<br \/>\nadministration of the Trust, its compliance with its duties set forth in this<br \/>\nAgreement, or any written or oral instruction delivered to the Trustee by<br \/>\nRedback or Exchangeco pursuant hereto.<\/p>\n<p>         In no case shall Redback or Exchangeco be liable under this indemnity<br \/>\nfor any claim against any of the Indemnified Parties unless Redback and<br \/>\nExchangeco are notified by the Trustee of the written assertion of a claim or of<br \/>\nany action commenced against the Indemnified Parties promptly after any of the<br \/>\nIndemnified Parties has received any such written assertion of a claim or shall<br \/>\nhave been served with a summons or other first legal process giving information<br \/>\nas to the nature and basis of the claim. Subject to (ii) below, Redback and<br \/>\nExchangeco shall be entitled to participate at their own expense in the defence<br \/>\nand, if Redback and Exchangeco so elect at any time after receipt of such<br \/>\nnotice, either of them may assume the defence of any suit brought to enforce any<br \/>\nsuch claim. The Trustee shall have the right to employ separate counsel in any<br \/>\nsuch suit and participate in the defence thereof, but the fees and expenses of<br \/>\nsuch counsel shall be at the expense of the Trustee unless: (i) the employment<br \/>\nof such counsel has been authorized by Redback or Exchangeco; or (ii) the named<br \/>\nparties to any such suit include both the Trustee and Redback or Exchangeco and<br \/>\nthe Trustee shall have been advised by counsel acceptable to Redback or<br \/>\nExchangeco that there may be one or more legal defences available to the Trustee<br \/>\nthat are different from or in addition to those available to Redback or<br \/>\nExchangeco and that, in the judgment of such counsel, would present a conflict<br \/>\nof interest were a joint representation to be undertaken (in which case Redback<br \/>\nand Exchangeco shall not have the right to assume the defence of such suit on<br \/>\nbehalf of the Trustee but shall be liable to pay the reasonable fees and<br \/>\nexpenses of counsel for the Trustee). This indemnity shall survive the<br \/>\ntermination of this Agreement and the resignation or removal of the Trustee.<\/p>\n<p>6.2      LIMITATION OF LIABILITY. The Trustee shall not be held liable for any<br \/>\nloss which may occur by reason of depreciation of the value of any part of the<br \/>\nTrust Estate or any loss <\/p>\n<p>                                       24<\/p>\n<p>incurred on any investment of funds pursuant to this Agreement, except to the<br \/>\nextent that such loss is attributable to the fraud, negligence, recklessness,<br \/>\nwilful misconduct or bad faith on the part of the Trustee.<\/p>\n<p>7.0      CHANGE OF TRUSTEE<br \/>\n7.1      RESIGNATION. The Trustee, or any trustee hereafter appointed, may at<br \/>\nany time resign by giving written notice of such resignation to Redback and<br \/>\nExchangeco specifying the date on which it desires to resign, provided that such<br \/>\nnotice shall not be given less than 60 days before such desired resignation date<br \/>\nunless Redback and Exchangeco otherwise agree and provided further that such<br \/>\nresignation shall not take effect until the date of the appointment of a<br \/>\nsuccessor trustee and the acceptance of such appointment by the successor<br \/>\ntrustee. Upon receiving such notice of resignation, Redback and Exchangeco shall<br \/>\npromptly appoint a successor trustee, which shall be a corporation organized and<br \/>\nexisting under the federal laws of Canada and authorized to carry on the<br \/>\nbusiness of a trust company in each of the Provinces of Canada, by written<br \/>\ninstrument in duplicate, one copy of which shall be delivered to the resigning<br \/>\ntrustee and one copy to the successor trustee. Failing acceptance by a successor<br \/>\ntrustee of such appointment, a successor trustee may be appointed by an order of<br \/>\na court of competent jurisdiction upon application of one or more of the parties<br \/>\nhereto or any Beneficiary, at the expense of Redback and Exchangeco.<\/p>\n<p>7.2      REMOVAL. The Trustee, or any trustee hereafter appointed, may (provided<br \/>\na successor trustee is appointed) be removed with or without cause at any time<br \/>\non not less than 30 days&#8217; prior notice by written instrument executed by Redback<br \/>\nand Exchangeco, in duplicate, one copy of which shall be delivered to the<br \/>\ntrustee so removed and one copy to the successor trustee.<\/p>\n<p>7.3      SUCCESSOR TRUSTEE. Any successor trustee appointed as provided under<br \/>\nthis Agreement shall execute, acknowledge and deliver to Redback and Exchangeco<br \/>\nand to its predecessor trustee an instrument accepting such appointment.<br \/>\nThereupon the resignation or removal of the predecessor trustee shall become<br \/>\neffective and such successor trustee, without any further act, deed or<br \/>\nconveyance, shall become vested with all the rights, powers, duties and<br \/>\nobligations of its predecessor under this Agreement, with the like effect as if<br \/>\noriginally named as trustee in this Agreement. However, on the written request<br \/>\nof Redback and Exchangeco or of the successor trustee, the trustee ceasing to<br \/>\nact shall, upon payment of any amounts then due it pursuant to the provisions of<br \/>\nthis Agreement, execute and deliver an instrument transferring to such successor<br \/>\ntrustee all the rights and powers of the trustee so ceasing to act. Upon the<br \/>\nrequest of any such successor trustee, Redback, Exchangeco and such predecessor<br \/>\ntrustee shall execute <\/p>\n<p>                                       25<\/p>\n<p>any and all instruments in writing for more fully and certainly vesting in and<br \/>\nconfirming to such successor trustee all such rights and powers.<\/p>\n<p>7.4      NOTICE OF SUCCESSOR TRUSTEE. Upon acceptance of appointment by a<br \/>\nsuccessor trustee as provided herein, Redback and Exchangeco shall cause to be<br \/>\nmailed notice of the succession of such trustee hereunder to each Beneficiary.<br \/>\nIf Redback or Exchangeco shall fail to cause such notice to be mailed within 10<br \/>\ndays after acceptance of appointment by the successor trustee, the successor<br \/>\ntrustee shall cause such notice to be mailed at the expense of Redback and<br \/>\nExchangeco.<\/p>\n<p>7.5      ASSIGNMENT TO AN AFFILIATE. Notwithstanding the foregoing provisions of<br \/>\nthis Section 7.0, the Trustee may assign all of its duties hereunder to any<br \/>\ncorporation organized and existing under the federal laws of Canada and<br \/>\nauthorized to carry on the business of a trust company in each of the Provinces<br \/>\nof Canada which is an Affiliate of Computershare Investor Services Inc. Such<br \/>\nassignment shall be effective upon notice by the Trustee to Redback and<br \/>\nExchangeco, without any further documentation or consent of the parties hereto.<\/p>\n<p>8.0      REDBACK SUCCESSORS<br \/>\n8.1      CERTAIN REQUIREMENTS IN RESPECT OF COMBINATION, ETC.. Redback shall not<br \/>\nconsummate any transaction (whether by way of reconstruction, reorganization,<br \/>\nconsolidation, merger, transfer, sale, lease or otherwise) whereby all or<br \/>\nsubstantially all of its undertaking, property and assets would become the<br \/>\nproperty of any other person or, in the case of a merger, of the continuing<br \/>\ncorporation resulting therefrom unless:<\/p>\n<p>         (a)      such other person or continuing  corporation (herein called<br \/>\n                  the &#8220;REDBACK SUCCESSOR&#8221;), by operation of law, becomes,<br \/>\n                  without more, bound by the terms and provisions of this<br \/>\n                  Agreement or, if not so bound, executes, prior to or<br \/>\n                  contemporaneously with the consummation of such transaction,<br \/>\n                  an agreement supplemental hereto and such other instruments<br \/>\n                  (if any) as are satisfactory to the Trustee, acting<br \/>\n                  reasonably, and in the opinion of legal counsel to the Trustee<br \/>\n                  are reasonably necessary or advisable to evidence the<br \/>\n                  assumption by the Redback Successor of liability for all<br \/>\n                  moneys payable and property deliverable hereunder and the<br \/>\n                  covenant of such Redback Successor to pay and deliver or cause<br \/>\n                  to be delivered the same and its agreement to observe and<br \/>\n                  perform all the covenants and obligations of Redback under<br \/>\n                  this Agreement; and<\/p>\n<p>                                       26<\/p>\n<p>         (b)      such transaction shall, to the satisfaction of the Trustee,<br \/>\n                  acting reasonably, and in the opinion of legal counsel to the<br \/>\n                  Trustee, be upon such terms and conditions as substantially to<br \/>\n                  preserve and not to impair in any material respect any of the<br \/>\n                  rights, duties, powers and authorities of the Trustee or of<br \/>\n                  the Beneficiaries hereunder.<\/p>\n<p>8.2      VESTING OF POWERS IN SUCCESSOR. Whenever the conditions of Section 8.1<br \/>\nhave been duly observed and performed, the Trustee and, if required by Section<br \/>\n8.1, the Redback Successor and Exchangeco shall execute and deliver the<br \/>\nsupplemental agreement provided for in Section 9.0 and thereupon the Redback<br \/>\nSuccessor shall possess and from time to time may exercise each and every right<br \/>\nand power of Redback under this Agreement in the name of Redback or otherwise<br \/>\nand any act or proceeding by any provision of this Agreement required to be done<br \/>\nor performed by the board of directors of Redback or any officers of Redback may<br \/>\nbe done and performed with like force and effect by the board of directors or<br \/>\nofficers of such Redback Successor.<\/p>\n<p>8.3      WHOLLY-OWNED SUBSIDIARIES. Nothing herein shall be construed as<br \/>\npreventing the amalgamation or merger of any wholly-owned direct or indirect<br \/>\nsubsidiary of Redback with or into Redback or the winding-up, liquidation or<br \/>\ndissolution of any wholly-owned direct or indirect subsidiary of Redback, other<br \/>\nthan Exchangeco or Newco, provided that all of the assets of such subsidiary are<br \/>\ntransferred to Redback or another wholly-owned direct or indirect subsidiary of<br \/>\nRedback and any such transactions are expressly permitted by this Section 8.0.<\/p>\n<p>9.0      AMENDMENTS AND SUPPLEMENTAL AGREEMENTS<br \/>\n9.1      AMENDMENTS, MODIFICATIONS, ETC.. This Agreement may not be amended or<br \/>\nmodified except by an agreement in writing executed by Redback, Exchangeco and<br \/>\nthe Trustee and approved by the Beneficiaries in accordance with Section 10.2 of<br \/>\nthe Share Provisions.<\/p>\n<p>9.2      MINISTERIAL AMENDMENTS.  Notwithstanding the provisions of Section 9.1,<br \/>\nthe parties to this Agreement may in writing, at any time and from time to time,<br \/>\nwithout the approval of the Beneficiaries, amend or modify this Agreement for<br \/>\nthe purposes of:<\/p>\n<p>         (a)      adding to the covenants of any or all parties hereto for the<br \/>\n                  protection of the Beneficiaries hereunder, provided that the<br \/>\n                  board of directors of each of Exchangeco and Redback is of the<br \/>\n                  good faith opinion that any such additions will not be<br \/>\n                  prejudicial to the rights or interests of the Beneficiaries;<\/p>\n<p>                                       27<\/p>\n<p>         (b)      making such amendments or modifications not inconsistent with<br \/>\n                  this Agreement as may be necessary or desirable with respect<br \/>\n                  to matters or questions arising hereunder which, in the good<br \/>\n                  faith opinion of the board of directors of each of Redback and<br \/>\n                  Exchangeco and in the opinion of the Trustee, it may be<br \/>\n                  expedient to make, provided that such boards of directors and<br \/>\n                  the Trustee is of the good faith opinion that such amendments<br \/>\n                  and modifications will not be prejudicial to the interests of<br \/>\n                  the Beneficiaries; or<\/p>\n<p>         (c)      making such changes in or corrections to this Agreement which,<br \/>\n                  on the advice of counsel to Redback, Exchangeco and the<br \/>\n                  Trustee, are required for the purpose of curing or correcting<br \/>\n                  any ambiguity or defect or inconsistent provision or clerical<br \/>\n                  omission or mistake or manifest error contained herein;<br \/>\n                  provided that the Trustee and the board of directors of each<br \/>\n                  of Redback and Exchangeco is of the good faith opinion that<br \/>\n                  such changes or corrections will not be prejudicial to the<br \/>\n                  interests of the Beneficiaries.<\/p>\n<p>9.3      MEETING TO CONSIDER AMENDMENTS. Exchangeco, at the request of Redback,<br \/>\nshall call a meeting or meetings of the Beneficiaries for the purpose of<br \/>\nconsidering any proposed amendment of or modification to this Agreement<br \/>\nrequiring their approval pursuant to Section 9.1. Any such meeting or meetings<br \/>\nshall be called and held in accordance with the articles of Exchangeco, the<br \/>\nShare Provisions and all applicable laws.<\/p>\n<p>9.4      CHANGES IN CAPITAL OF REDBACK AND EXCHANGECO. Notwithstanding Section<br \/>\n9.1, at all times after the occurrence of any event contemplated pursuant to<br \/>\nSection 2.7 or 2.8 of the Support Agreement or otherwise, as a result of which<br \/>\neither Redback Common Shares or the Exchangeable Shares or both are in any way<br \/>\nchanged, this Agreement shall forthwith be amended and modified as necessary in<br \/>\norder that it shall apply with full force and effect, MUTATIS MUTANDIS, to all<br \/>\nnew securities into which Redback Common Shares or the Exchangeable Shares or<br \/>\nboth are so changed and the parties hereto shall execute and deliver a<br \/>\nsupplemental agreement giving effect to and evidencing such necessary amendments<br \/>\nand modifications.<\/p>\n<p>9.5      EXECUTION OF SUPPLEMENTAL AGREEMENTS. No amendment to or modification<br \/>\nor waiver of any of the provisions of this Agreement otherwise permitted<br \/>\nhereunder shall be effective unless made in writing and signed by all of the<br \/>\nparties hereto. Notwithstanding Section 9.1, from time to time Exchangeco (when<br \/>\nauthorized by a resolution of its Board of <\/p>\n<p>                                       28<\/p>\n<p>Directors), Redback (when authorized by a resolution of its board of directors)<br \/>\nand the Trustee may, subject to the provisions of this Agreement, and they<br \/>\nshall, when so directed by this Agreement, execute and deliver by their proper<br \/>\nofficers, agreements or other instruments supplemental hereto, which thereafter<br \/>\nshall form part hereof, for any one or more of the following purposes:<\/p>\n<p>         (a)      evidencing the succession of Redback Successors and the<br \/>\n                  covenants of and obligations assumed by each such Redback<br \/>\n                  Successor in accordance with the provisions of Section 8.0 and<br \/>\n                  the succession of any successor trustee in accordance with the<br \/>\n                  provisions of Section 7.0;<\/p>\n<p>         (b)      making any additions to, deletions from or alterations of the<br \/>\n                  provisions of this Agreement or the Exchange Right or the<br \/>\n                  Automatic Exchange Rights which, in the opinion of the<br \/>\n                  Trustee, will not be prejudicial to the interests of the<br \/>\n                  Beneficiaries or are, in the opinion of counsel to the<br \/>\n                  Trustee, necessary or advisable in order to incorporate,<br \/>\n                  reflect or comply with any legislation, the provisions of<br \/>\n                  which apply to Redback, Exchangeco, the Trustee or this<br \/>\n                  Agreement; and<\/p>\n<p>         (c)      for any other purposes not inconsistent with the provisions of<br \/>\n                  this Agreement, including without limitation, to make or<br \/>\n                  evidence any amendment or modification to this Agreement as<br \/>\n                  contemplated hereby, provided that, in the opinion of the<br \/>\n                  Trustee, the rights of the Trustee and Beneficiaries will not<br \/>\n                  be prejudiced thereby.<\/p>\n<p>10.0     TERMINATION<br \/>\n10.1     TERM.  The Trust created by this Agreement shall continue until the<br \/>\nearliest to occur of the following events:<\/p>\n<p>         (a)      no outstanding Exchangeable Shares are held by a Beneficiary;<\/p>\n<p>         (b)      each of Redback and  Exchangeco  elects in writing to<br \/>\n                  terminate the Trust and such termination is approved by the<br \/>\n                  Beneficiaries in accordance with Section 10.2 of the Share<br \/>\n                  Provisions; and<\/p>\n<p>                                       29<\/p>\n<p>         (c)      21 years after the death of the last survivor of the<br \/>\n                  descendants of His Majesty King George VI of Canada and the<br \/>\n                  United Kingdom of Great Britain and Northern Ireland living on<br \/>\n                  the date of the creation of the Trust.<\/p>\n<p>10.2     SURVIVAL OF AGREEMENT. This Agreement shall survive any termination of<br \/>\nthe Trust and shall continue until there are no Exchangeable Shares outstanding<br \/>\nheld by a Beneficiary; provided, however, that the provisions of Sections 5.0<br \/>\nand 6.0 shall survive any such termination of this Agreement.<\/p>\n<p>11.0     GENERAL<br \/>\n11.1     SEVERABILITY. If any term or other provisions of this Agreement is<br \/>\ninvalid, illegal or incapable of being enforced by any rule or law, or public<br \/>\npolicy, all other conditions and provisions of this Agreement will nevertheless<br \/>\nremain in full force and effect so long as the economic or legal substance of<br \/>\nthe transactions contemplated by this Agreement is not affected in any manner<br \/>\nmaterially adverse to any party. Upon the determination that any term or other<br \/>\nprovision is invalid, illegal or incapable of being enforced, the parties to<br \/>\nthis Agreement will negotiate in good faith to modify this Agreement so as to<br \/>\neffect the original intent of the parties as closely as possible in an<br \/>\nacceptable manner to the end that the transactions contemplated by this<br \/>\nAgreement are fulfilled to the fullest extent possible.<\/p>\n<p>11.2     ENUREMENT. This Agreement shall be binding upon and enure to the<br \/>\nbenefit of the parties hereto and their respective successors and permitted<br \/>\nassigns and to the benefit of the Beneficiaries.<\/p>\n<p>11.3     NOTICES TO PARTIES . All notices and other communications between the<br \/>\nparties to this Agreement shall be in writing and shall be deemed to have been<br \/>\ngiven if delivered personally or by confirmed telecopy to the parties at the<br \/>\nfollowing addresses (or at such other address for any such party as shall be<br \/>\nspecified in like notice):<\/p>\n<p>         (a)      to Exchangeco or Redback:<\/p>\n<p>                  Redback Networks Inc.<br \/>\n                  1195 Borregas Avenue<br \/>\n                  Sunnyvale, California  94089<br \/>\n                  ATTENTION:     General Counsel<br \/>\n                  Facsimile:     (408) 571-5195<\/p>\n<p>                                       30<\/p>\n<p>                  with a copy to:<\/p>\n<p>                  Gunderson Dettmer LLP<br \/>\n                  155 Constitution Drive<br \/>\n                  Menlo Park, California  94025<br \/>\n                  ATTENTION:     Gregory K. Miller<br \/>\n                  Facsimile:     (650) 321-2800<\/p>\n<p>                  and to:<\/p>\n<p>                  Fraser Milner Casgrain<br \/>\n                  1500 &#8211; 1040 West Georgia Street<br \/>\n                  Vancouver, British Columbia  V6E 4H8<br \/>\n                  ATTENTION:     Gary R. Sollis<br \/>\n                  Facsimile:     (604) 683-5214<\/p>\n<p>         (b)      to the Trustee:<\/p>\n<p>                  Montreal Trust Company of Canada<br \/>\n                  3rd Floor, 510 Burrard Street<br \/>\n                  Vancouver, British Columbia   V6C 3B9<\/p>\n<p>                  ATTENTION:     Nicole Clement<br \/>\n                  Facsimile:     (604) 683-4079<\/p>\n<p>Any notice or other communication given personally shall be deemed to have been<br \/>\ngiven and received upon delivery thereof and if given by telecopy shall be<br \/>\ndeemed to have been given and received on the date of confirmed receipt thereof<br \/>\nunless such day is not a Business Day in which case it shall be deemed to have<br \/>\nbeen given and received upon the immediately following Business Day.<\/p>\n<p>11.4     NOTICE TO BENEFICIARIES. Any and all notices to be given and any<br \/>\ndocuments to be sent to any Beneficiaries may be given or sent to the address of<br \/>\nsuch Beneficiary shown on the register of members for the Exchangeable Shares in<br \/>\nany manner permitted by the articles of Exchangeco from time to time in force in<br \/>\nrespect of notices to the holders of such Exchangeable Shares and shall be<br \/>\ndeemed to be received (if given or sent in such manner) at the time specified in<br \/>\nsuch articles, the provisions of which articles shall apply MUTATIS MUTANDIS to<br \/>\nnotices or documents as aforesaid sent to such Beneficiaries.<\/p>\n<p>11.5     RISK OF PAYMENTS BY POST. Whenever payments are to be made or<br \/>\ndocuments are to be sent to any holder by the Trustee or by such holder to the<br \/>\nTrustee, the making of such <\/p>\n<p>                                       31<\/p>\n<p>payment or sending of such document sent through the post shall be at the risk<br \/>\nof Redback and Exchangeco, in the case of payments made or documents sent by the<br \/>\nTrustee, and at the risk of the holder, in the case of payments made or<br \/>\ndocuments sent by the holder.<\/p>\n<p>11.6     COUNTERPARTS. This Agreement may be executed in counterparts, each of<br \/>\nwhich shall be deemed an original, but all of which taken together shall<br \/>\nconstitute one and the same instrument.<\/p>\n<p>11.7     JURISDICTION. This Agreement shall be construed and enforced in<br \/>\naccordance with the laws of the Province of British Columbia and the federal<br \/>\nlaws of Canada applicable therein.<\/p>\n<p>                                       32<\/p>\n<p>11.8     ATTORNMENT. Each of the Trustee, Redback and Exchangeco agrees that any<br \/>\naction or proceeding arising out of or relating to this Agreement may be<br \/>\ninstituted in the courts of British Columbia, waives any objection which it may<br \/>\nhave now or hereafter to the venue of any such action or proceeding, irrevocably<br \/>\nsubmits to the jurisdiction of the said courts in any such action or proceeding,<br \/>\nagrees to be bound by any judgment of the said courts and not to seek, and<br \/>\nhereby waives, any review of the merits of any such judgment by the courts of<br \/>\nany other jurisdiction and hereby appoints Exchangeco at its registered office<br \/>\nin the Province of British Columbia as attorney for service of process.<\/p>\n<p>         IN WITNESS WHEREOF the parties hereto have caused this Agreement to be<br \/>\nduly executed as of the date first above written.<\/p>\n<p>                      610381 B.C. INC.<\/p>\n<p>                      Per:<br \/>\n                             &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br \/>\n                              Authorized Signatory<\/p>\n<p>                      REDBACK NETWORKS INC.<\/p>\n<p>                      Per:<br \/>\n                             &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br \/>\n                              Authorized Signatory<\/p>\n<p>                      MONTREAL TRUST COMPANY OF CANADA<\/p>\n<p>                      Per:<br \/>\n                             &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br \/>\n                              Authorized Signatory<\/p>\n<p>                                       33<\/p>\n<p>                                    EXHIBIT E<\/p>\n<p>               PLAN OF ARRANGEMENT UNDER SECTION 192 OF THE CANADA<br \/>\n                           BUSINESS CORPORATIONS ACT<\/p>\n<p>                                    ARTICLE 1<br \/>\n                                 INTERPRETATION<\/p>\n<p>1.1      DEFINITIONS. In this Plan of Arrangement, unless there is something in<br \/>\nthe subject matter or context inconsistent therewith, the following terms shall<br \/>\nhave the respective meanings set out below and grammatical variations of such<br \/>\nterms shall have corresponding meanings:<\/p>\n<p>         (a)      &#8220;ABATIS&#8221; means Abatis Systems Corporation, a corporation<br \/>\n                  existing under the federal laws of Canada;<\/p>\n<p>         (b)      &#8220;ABATIS OPTION&#8221; means an option to purchase Class A Voting<br \/>\n                  Common Shares of Abatis granted under Abatis&#8217;s Key Employee<br \/>\n                  Stock Option Plan and being outstanding and unexercised on the<br \/>\n                  Effective Date;<\/p>\n<p>         (c)      &#8220;ABATIS SECURITIES&#8221; means the Abatis Shares and the Abatis<br \/>\n                  Options, collectively;<\/p>\n<p>         (d)      &#8220;ABATIS SHARES&#8221; means the outstanding  Class A Voting Common<br \/>\n                  Shares and Class B Non-Voting Common Shares, all without par<br \/>\n                  value, in the capital of Abatis;<\/p>\n<p>         (e)      &#8220;AFFILIATE&#8221; of any Person means any other Person directly or<br \/>\n                  indirectly controlling, controlled by, or under common control<br \/>\n                  of, that Person. For the purposes of this definition,<br \/>\n                  &#8220;control&#8221; (including, with correlative meanings, the terms<br \/>\n                  &#8220;controlled by&#8221; and &#8220;under common control of&#8221;), as applied to<br \/>\n                  any Person, means the possession by another Person, directly<br \/>\n                  or indirectly, of the power to direct or cause the direction<br \/>\n                  of the management and policies of that first mentioned Person,<br \/>\n                  whether through the ownership of voting securities, by<br \/>\n                  contract or otherwise;<\/p>\n<p>         (f)      &#8220;ARRANGEMENT&#8221; means the arrangement under section 192 of the<br \/>\n                  CBCA on the terms and subject to the conditions set out in<br \/>\n                  this Plan of Arrangement, subject to any amendments or<br \/>\n                  variations thereto made in accordance with section 7.1 of the<\/p>\n<p>                  Arrangement Agreement or Article 6 hereof or made at the<br \/>\n                  direction of the Court in the Final Order;<\/p>\n<p>         (g)      &#8220;ARRANGEMENT AGREEMENT&#8221; means the agreement made as of<br \/>\n                  July 30, 2000 among Redback, Exchangeco and Abatis, as<br \/>\n                  amended, supplemented and\/or restated in accordance therewith<br \/>\n                  prior to the Effective Date, providing for, among other<br \/>\n                  things, the Arrangement;<\/p>\n<p>         (h)      &#8220;ARRANGEMENT  RESOLUTION&#8221; means the special  resolution passed<br \/>\n                  by the holders of the Abatis Shares and Abatis Options at the<br \/>\n                  Meeting;<\/p>\n<p>         (i)      &#8220;ARTICLES OF ARRANGEMENT&#8221; means the articles of arrangement of<br \/>\n                  Abatis in respect of the Arrangement, required by the CBCA to<br \/>\n                  be sent to the Director after the Final Order is made;<\/p>\n<p>         (j)      &#8220;BUSINESS DAY&#8221; means any day on which commercial banks are<br \/>\n                  open for business in San Francisco, California and Vancouver,<br \/>\n                  British Columbia, other than a Saturday, a Sunday or a day<br \/>\n                  observed as a holiday in Vancouver, British Columbia under the<br \/>\n                  laws of the Province of British Columbia or the federal laws<br \/>\n                  of Canada or in San Francisco, California under the laws of<br \/>\n                  the State of California or the federal laws of the United<br \/>\n                  States of America;<\/p>\n<p>         (k)      &#8220;CANADIAN RESIDENT&#8221; means a person who is not a non-resident<br \/>\n                  of Canada for purposes of the ITA;<\/p>\n<p>         (l)      &#8220;CBCA&#8221; means the CANADA BUSINESS CORPORATIONS ACT, R.S.C.<br \/>\n                  1995, c. C-44, as amended;<\/p>\n<p>         (m)      &#8220;CERTIFICATE&#8221; means the certificate of arrangement giving<br \/>\n                  effect to the Arrangement, issued pursuant to subsection<br \/>\n                  192(7) of the CBCA after the Articles of Arrangement have been<br \/>\n                  filed;<\/p>\n<p>         (n)      &#8220;CIRCULAR&#8221; means the notice of the Meeting and accompanying<br \/>\n                  management proxy circular to be sent to holders of Abatis<br \/>\n                  Shares and Abatis Options in connection with the Meeting;<\/p>\n<p>         (o)      &#8220;COURT&#8221; means the Supreme Court of British Columbia;<\/p>\n<p>         (p)      &#8220;CURRENT MARKET PRICE&#8221; has the meaning ascribed thereto in the<br \/>\n                  Exchangeable Share Provisions;<\/p>\n<p>                                       2<\/p>\n<p>         (q)      &#8220;DEPOSITARY&#8221;  means Montreal Trust Company of Canada, at such<br \/>\n                  offices as will be set out in the Letter of Transmittal and<br \/>\n                  Election Form;<\/p>\n<p>         (r)      &#8220;DEPOSITED SECURITIES&#8221; has the meaning set out in section<br \/>\n                  2.2(e);<\/p>\n<p>         (s)      &#8220;DIRECTOR&#8221; mean the Director appointed under section 260 of<br \/>\n                  the CBCA;<\/p>\n<p>         (t)      &#8220;DISSENT PROCEDURES&#8221; has the meaning set out in section 3.1;<\/p>\n<p>         (u)      &#8220;DISSENTING  SHAREHOLDER&#8221;  means a holder of Abatis Shares who<br \/>\n                  dissents in respect of the Arrangement in strict compliance<br \/>\n                  with the Dissent Procedures;<\/p>\n<p>         (v)      &#8220;DIVIDEND AMOUNT&#8221; has the meaning ascribed thereto in<br \/>\n                  section 5.1(a);<\/p>\n<p>         (w)      &#8220;EFFECTIVE DATE&#8221; means the date shown on the Certificate;<\/p>\n<p>         (x)      &#8220;EFFECTIVE TIME&#8221; means 12:01 a.m. on the Effective Date;<\/p>\n<p>         (y)      &#8220;ELECTION  DEADLINE&#8221;  means  5:00 p.m.  (Pacific  time) on the<br \/>\n                  date which is two Business Days before the date of the<br \/>\n                  Meeting;<\/p>\n<p>         (z)      &#8220;ESCROW AGENT&#8221; means Montreal Trust Company of Canada, in its<br \/>\n                  capacity as escrow agent under the Escrow Agreement, and<br \/>\n                  includes any successor escrow agent appointed thereunder;<\/p>\n<p>         (aa)     &#8220;ESCROW AGREEMENT&#8221; means the Escrow Agreement among Redback,<br \/>\n                  Exchangeco, the Shareholders&#8217; Agent and the Escrow Agent, in<br \/>\n                  the form and content of Appendix 2 hereto, as amended or<br \/>\n                  supplemented from time to time in accordance with the terms<br \/>\n                  thereof;<\/p>\n<p>         (ab)     &#8220;ESCROW AMOUNT&#8221; means the number of Escrow Securities;<\/p>\n<p>         (ac)     &#8220;ESCROW SECURITIES&#8221; means, collectively, 10% of the Redback<br \/>\n                  Common Shares and 10% of the Exchangeable Shares to be issued<br \/>\n                  to the holders of Abatis Shares at the Effective Time pursuant<br \/>\n                  to this Plan of Arrangement (all of which shall be subject to<br \/>\n                  adjustment as provided for in section 2.4 hereof);<\/p>\n<p>         (ad)     &#8220;EXCHANGECO&#8221; means 610381 B.C. Inc., a company existing under<br \/>\n                  the laws of the Province of British Columbia, which is a<br \/>\n                  wholly owned subsidiary of Redback;<\/p>\n<p>                                       3<\/p>\n<p>         (ae)     &#8220;EXCHANGE RATIO&#8221; means a number equal to the quotient obtained<br \/>\n                  when (A) 5,236,154 is divided by (B) the sum of (x) the<br \/>\n                  aggregate number of Abatis Shares issued and outstanding as at<br \/>\n                  the Effective Date and (y) the aggregate number of Abatis<br \/>\n                  Shares which are or may at any future time become issuable<br \/>\n                  pursuant to Abatis Options outstanding as at the Effective<br \/>\n                  Date, including, without limitation, all Abatis Options which<br \/>\n                  are not fully vested or immediately exercisable as at the<br \/>\n                  Effective Date;<\/p>\n<p>         (af)     &#8220;EXCHANGE TRUST AGREEMENT&#8221; means the Exchange Trust Agreement<br \/>\n                  among Redback, Exchangeco and the Trustee, to be entered into<br \/>\n                  in connection with this Plan of Arrangement, substantially in<br \/>\n                  the form and content of Exhibit D annexed to the Arrangement<br \/>\n                  Agreement, with such changes thereto as the parties to the<br \/>\n                  Arrangement Agreement, acting reasonably, may agree, in<br \/>\n                  accordance with the terms thereof;<\/p>\n<p>         (ag)     &#8220;EXCHANGEABLE ELECTED SHARE&#8221; means any Abatis Share that the<br \/>\n                  holder shall have elected, in a duly completed Letter of<br \/>\n                  Transmittal and Election Form deposited with the Depositary no<br \/>\n                  later than the Election Deadline, to transfer to Exchangeco<br \/>\n                  under the Arrangement for a fraction of an Exchangeable Share;<\/p>\n<p>         (ah)     &#8220;EXCHANGEABLE SHARE&#8221; means a share in the class of non-voting<br \/>\n                  exchangeable shares in the capital of Exchangeco;<\/p>\n<p>         (ai)     &#8220;EXCHANGEABLE SHARE PROVISIONS&#8221; means the rights, privileges,<br \/>\n                  restrictions and conditions attaching to the Exchangeable<br \/>\n                  Shares, which rights, privileges, restrictions and conditions<br \/>\n                  shall be substantially in the form and content of Appendix 1<br \/>\n                  hereto;<\/p>\n<p>         (aj)     &#8220;FINAL ORDER&#8221; means the final order of the Court approving the<br \/>\n                  Arrangement, granted pursuant to section 192 of the CBCA, as<br \/>\n                  such order may be amended at any time prior to the Effective<br \/>\n                  Date or, if appealed, then, unless such appeal is withdrawn or<br \/>\n                  denied, as affirmed;<\/p>\n<p>         (ak)     &#8220;HOLDER&#8221; means, when used with reference to any Abatis<br \/>\n                  Securities, the holder of such Abatis Securities shown from<br \/>\n                  time to time on the securities register maintained by or on<br \/>\n                  behalf of Abatis in respect of such Abatis Securities and,<br \/>\n                  when used with reference to any Exchangeable Shares, means the<br \/>\n                  holder of such Exchangeable Shares shown from time to time on<br \/>\n                  the register of members<br \/>\n                                       4<\/p>\n<p>                  maintained by or on behalf of Exchangeco in respect of such<br \/>\n                  Exchangeable Shares;<\/p>\n<p>         (al)     &#8220;INTERIM ORDER&#8221; means the interim order of the Court made in<br \/>\n                  connection with the process for obtaining shareholder approval<br \/>\n                  of the Arrangement and related matters;<\/p>\n<p>         (am)     &#8220;ITA&#8221; means the INCOME TAX ACT (Canada);<\/p>\n<p>         (an)     &#8220;LETTER OF TRANSMITTAL AND ELECTION FORM&#8221; means the Letter of<br \/>\n                  Transmittal and Election Form for use by holders of Abatis<br \/>\n                  Shares, in the form which will accompany the Circular;<\/p>\n<p>         (ao)     &#8220;LIQUIDATION CALL PURCHASE PRICE&#8221; has the meaning ascribed<br \/>\n                  thereto in section 5.1(a);<\/p>\n<p>         (ap)     &#8220;LIQUIDATION CALL RIGHT&#8221; has the meaning ascribed thereto in<br \/>\n                  section 5.1(a);<\/p>\n<p>         (aq)     &#8220;LIQUIDATION DATE&#8221; has the meaning ascribed thereto in the<br \/>\n                  Exchangeable Share Provisions;<\/p>\n<p>         (ar)     &#8220;MEETING&#8221; means the special meeting of the holders of Abatis<br \/>\n                  Securities (including any adjournment thereof) that is to be<br \/>\n                  convened as provided by the Interim Order to consider and, if<br \/>\n                  deemed advisable, approve the Arrangement;<\/p>\n<p>         (as)     &#8220;MEETING DATE&#8221; means the date of the Meeting;<\/p>\n<p>         (at)     &#8220;NEWCO&#8221; means 610380 B.C.  Inc., a company  existing under the<br \/>\n                  laws of the Province of British Columbia, which is a wholly<br \/>\n                  owned subsidiary of Redback;<\/p>\n<p>         (au)     &#8220;NNM&#8221; means the distinct tier of The Nasdaq Stock Market<br \/>\n                  referred to as the Nasdaq National Market;<\/p>\n<p>         (av)     &#8220;PERSON&#8221; includes any individual, firm, partnership, joint<br \/>\n                  venture, venture capital fund, association, trust, trustee,<br \/>\n                  executor, administrator, legal personal representative,<br \/>\n                  estate, group, body corporate, corporation, company,<br \/>\n                  unincorporated association or organization, government body,<br \/>\n                  syndicate or other entity, whether or not having legal status;<\/p>\n<p>                                       5<\/p>\n<p>         (aw)     &#8220;REDBACK&#8221; means Redback Networks Inc., a corporation existing<br \/>\n                  under the laws of the State of Delaware;<\/p>\n<p>         (ax)     &#8220;REDBACK  COMMON  SHARE&#8221; means a share of common  stock,  par<br \/>\n                  value U.S. $0.0001, in the capital of Redback and any other<br \/>\n                  securities into which such share may be changed;<\/p>\n<p>         (ay)     &#8220;REDBACK CONTROL TRANSACTION&#8221; has the meaning ascribed thereto<br \/>\n                  in the Exchangeable Share Provisions;<\/p>\n<p>         (az)     &#8220;REDBACK ELECTED SHARE&#8221; means any Abatis Share that the holder<br \/>\n                  shall have elected, in a duly completed Letter of Transmittal<br \/>\n                  and Election Form deposited with the Depositary no later than<br \/>\n                  the Election Deadline, to transfer to Exchangeco under the<br \/>\n                  Arrangement for a fraction of a Redback Common Share, or that<br \/>\n                  is deemed to be a Redback Elected Share pursuant to section<br \/>\n                  2.3(a);<\/p>\n<p>         (ba)     &#8220;REDEMPTION CALL PURCHASE PRICE&#8221; has the meaning ascribed<br \/>\n                  thereto in section 5.2(a);<\/p>\n<p>         (bb)     &#8220;REDEMPTION CALL RIGHT&#8221; has the meaning ascribed thereto in<br \/>\n                  section 5.2(a);<\/p>\n<p>         (bc)     &#8220;REDEMPTION DATE&#8221; has the meaning ascribed thereto in the<br \/>\n                  Exchangeable Share Provisions;<\/p>\n<p>         (bd)     &#8220;REGISTRATION  RIGHTS AGREEMENT&#8221; means the Registration Rights<br \/>\n                  Agreement between Redback and the Shareholders&#8217; Agent, as<br \/>\n                  contemplated in section 2.6(d) of the Arrangement Agreement;<\/p>\n<p>         (be)     &#8220;REPLACEMENT OPTION&#8221; has the meaning ascribed thereto in<br \/>\n                  section 2.2(d), and, when used in the plural in a context<br \/>\n                  where the number of such options is relevant, means the number<br \/>\n                  of Redback Common Shares issuable under such Replacement<br \/>\n                  Option once such option has fully vested;<\/p>\n<p>         (bf)     &#8220;SHAREHOLDERS&#8217; AGENT&#8221; means Andrew Waitman, in his capacity as<br \/>\n                  shareholders&#8217; agent under the Escrow Agreement or the<br \/>\n                  Registration Rights Agreement, as the case may be, and<br \/>\n                  includes any successor shareholders&#8217; agent appointed under<br \/>\n                  either such agreement;<\/p>\n<p>                                       6<\/p>\n<p>         (bg)     &#8220;TRANSFER AGENT&#8221; means Montreal Trust Company of Canada or<br \/>\n                  such other Person as may from time to time be appointed by<br \/>\n                  Exchangeco as the registrar and transfer agent for the<br \/>\n                  Exchangeable Shares;<\/p>\n<p>         (bh)     &#8220;TRUSTEE&#8221; means Montreal Trust Company of Canada, in its<br \/>\n                  capacity as trustee under the Exchange Trust Agreement, and<br \/>\n                  includes any successor trustee appointed thereunder; and<\/p>\n<p>         (bi)     &#8220;UNITED STATES DOLLAR EQUIVALENT&#8221; means, in respect of an<br \/>\n                  amount expressed in a currency other than United States<br \/>\n                  dollars (the &#8220;FOREIGN CURRENCY AMOUNT&#8221;) at any date, the<br \/>\n                  product obtained by multiplying (a) the Foreign Currency<br \/>\n                  Amount by (b) the noon spot exchange rate on that date for<br \/>\n                  that foreign currency expressed in United States dollars as<br \/>\n                  reported by the Federal Reserve Bank of New York or, in the<br \/>\n                  event that spot exchange rate is not available, any publicly<br \/>\n                  disclosed and widely quoted exchange rate as quoted by an<br \/>\n                  arm&#8217;s length third party on that date for the foreign currency<br \/>\n                  expressed in United States dollars as may be deemed by the<br \/>\n                  Board of Directors of Redback, acting reasonably, to be<br \/>\n                  appropriate for that purpose.<\/p>\n<p>1.2      SECTIONS AND HEADINGS. The division of this Plan of Arrangement into<br \/>\nsections and the insertion of headings are for reference purposes only and shall<br \/>\nnot affect the interpretation of this Plan of Arrangement. Unless otherwise<br \/>\nindicated, any reference in this Plan of Arrangement to a section or an exhibit<br \/>\nrefers to the specified section of or exhibit to this Plan of Arrangement.<\/p>\n<p>1.3      NUMBER, GENDER AND PERSONS. In this Plan of Arrangement, unless the<br \/>\ncontext otherwise requires, words importing the singular number include the<br \/>\nplural and VICE VERSA and words importing any gender include all genders.<\/p>\n<p>1.4      DATE FOR ANY ACTION. If any date on which any action is required to be<br \/>\ntaken under this Plan of Arrangement is not a Business Day, such action shall be<br \/>\nrequired to be taken on the next succeeding Business Day.<\/p>\n<p>                                    ARTICLE 2<br \/>\n                                   ARRANGEMENT<\/p>\n<p>2.1      BINDING EFFECT. This Plan of Arrangement will become effective at, and<br \/>\nbe binding at and after, the Effective Time on (i) Abatis, (ii) Redback, Newco<br \/>\nand Exchangeco, (iii) <\/p>\n<p>                                       7<\/p>\n<p>all holders of Abatis Shares, (iv) all holders and all beneficial holders of<br \/>\nExchangeable Shares, and (v) all holders of Abatis Options.<\/p>\n<p>2.2      ARRANGEMENT.  Commencing at the Effective Time, the following shall<br \/>\noccur and shall be deemed to occur in the following order without any further<br \/>\nact or formality:<\/p>\n<p>         (a)      each Redback Elected Share will be transferred by the holder<br \/>\n                  thereof, without any act or formality on his part, to<br \/>\n                  Exchangeco in exchange for that number of fully paid and<br \/>\n                  non-assessable Redback Common Shares equal to the Exchange<br \/>\n                  Ratio, and the name of each such holder will be removed from<br \/>\n                  the register of holders of Abatis Shares and added to the<br \/>\n                  register of holders of Redback Common Shares, and Exchangeco<br \/>\n                  will be recorded as the registered holder of such Abatis<br \/>\n                  Shares so exchanged and will be deemed to be the legal and<br \/>\n                  beneficial owner thereof;<\/p>\n<p>         (b)      each Exchangeable Elected Share will be transferred by the<br \/>\n                  holder thereof, without any act or formality on his part, to<br \/>\n                  Exchangeco in exchange for that number of fully paid and<br \/>\n                  non-assessable Exchangeable Shares equal to the Exchange<br \/>\n                  Ratio, and the name of each such holder will be removed from<br \/>\n                  the register of holders of Abatis Shares and added to the<br \/>\n                  register of holders of Exchangeable Shares, and Exchangeco<br \/>\n                  will be recorded as the registered holder of such Abatis<br \/>\n                  Shares so exchanged and will be deemed to be the legal and<br \/>\n                  beneficial owner thereof;<\/p>\n<p>         (c)      each Abatis  Share in respect of which no  election  has been<br \/>\n                  made by the holder thereof, or in respect of which an<br \/>\n                  effective election has not been made (other than Abatis Shares<br \/>\n                  held by Dissenting Shareholders who are ultimately entitled to<br \/>\n                  be paid the fair value of the Abatis Shares held by them) will<br \/>\n                  be deemed to be a Redback Elected Share and will be<br \/>\n                  transferred by the holder thereof, without any act or<br \/>\n                  formality on his part, to Exchangeco in exchange for that<br \/>\n                  number of fully paid and non-assessable Redback Common Shares<br \/>\n                  equal to the Exchange Ratio, and the name of each such holder<br \/>\n                  will be removed from the register of holders of Abatis Shares<br \/>\n                  and added to the register of holders of Redback Common Shares,<br \/>\n                  and Exchangeco will be recorded as the registered holder of<br \/>\n                  such Abatis Shares so exchanged and will be deemed to be the<br \/>\n                  legal and beneficial owner thereof;<\/p>\n<p>         (d)      each  Abatis  Option  shall,  without  any act or  formality,<br \/>\n                  be exchanged by the holder thereof for an option (a<br \/>\n                  &#8220;REPLACEMENT OPTION&#8221;) to purchase a number of Redback Common<br \/>\n                  Shares equal to the product of the Exchange Ratio multiplied<br \/>\n                  by the number of Class A Voting Common Shares of Abatis<br \/>\n                  subject to such <\/p>\n<p>                                       8<\/p>\n<p>                  Abatis Option. Such Replacement Option shall provide for an<br \/>\n                  exercise price per Redback Common Share equal to the United<br \/>\n                  States Dollar Equivalent of the exercise price per share of<br \/>\n                  such Abatis Option immediately prior to the Effective Time<br \/>\n                  divided by the Exchange Ratio and rounded up to the nearest<br \/>\n                  whole cent. If the foregoing calculation results in a<br \/>\n                  Replacement Option being exercisable for a fraction of a<br \/>\n                  Redback Common Share, then the number of Redback Common Shares<br \/>\n                  subject to such Replacement Option shall be rounded down to<br \/>\n                  the next whole number of Redback Common Shares. The term to<br \/>\n                  expiry, conditions to and manner of exercise, vesting schedule<br \/>\n                  and other terms and conditions of each of the Replacement<br \/>\n                  Options shall be the same as the terms and conditions of the<br \/>\n                  Abatis Option for which it is exchanged, except that the<br \/>\n                  vesting provisions applicable thereto shall be as set out in<br \/>\n                  Appendix 3 hereto, and any document or agreement previously<br \/>\n                  evidencing an Abatis Option shall be deemed to be an agreement<br \/>\n                  between Redback and the holder thereof evidencing such<br \/>\n                  Replacement Option;<\/p>\n<p>         (e)      each of the Persons entitled to receive Redback Common Shares<br \/>\n                  and Exchangeable Shares to be issued pursuant to this Plan of<br \/>\n                  Arrangement, (i) will be deemed to have irrevocably appointed<br \/>\n                  and authorized the Shareholders&#8217; Agent, as the agent of such<br \/>\n                  Person, to enter into and act under the Escrow Agreement on<br \/>\n                  his behalf in the manner contemplated in the Escrow Agreement,<br \/>\n                  (ii) will be deemed to have irrevocably authorized and<br \/>\n                  directed Redback and Exchangeco, and their respective<br \/>\n                  representatives and agents, to deposit, or cause to be<br \/>\n                  deposited, in escrow with the Escrow Agent, 10% of the Redback<br \/>\n                  Common Shares and 10% of the Exchangeable Shares to be issued<br \/>\n                  to such Person at the Effective Time under this Plan of<br \/>\n                  Arrangement (collectively, the &#8220;DEPOSITED SECURITIES&#8221;), (iii)<br \/>\n                  will be deemed to have irrevocably authorized the Escrow Agent<br \/>\n                  to hold and deal with such Person&#8217;s Deposited Securities in<br \/>\n                  accordance with the terms of the Escrow Agreement, and (iv)<br \/>\n                  will be bound by the provisions of the Escrow Agreement in<br \/>\n                  respect of all of such Person&#8217;s Deposited Securities; and<\/p>\n<p>         (f)      each of the Persons entitled to receive Exchangeable Shares to<br \/>\n                  be issued pursuant to this Plan of Arrangement will be deemed<br \/>\n                  to have irrevocably appointed and authorized the Shareholders&#8217;<br \/>\n                  Agent, as the agent of such Person, to execute and deliver the<br \/>\n                  Registration Rights Agreement.<\/p>\n<p>2.3      ELECTIONS<\/p>\n<p>         (a)      Each Person who, at or prior to the Election Deadline, is a<br \/>\n                  holder of record of Abatis Shares, will be entitled, with<br \/>\n                  respect to all or a portion of such shares, to <\/p>\n<p>                                       9<\/p>\n<p>                  make an election at or prior to the Election Deadline to<br \/>\n                  receive Exchangeable Shares or Redback Common Shares, or a<br \/>\n                  combination thereof, in exchange for such holder&#8217;s Abatis<br \/>\n                  Shares, on the basis set forth herein and in the Letter of<br \/>\n                  Transmittal and Election Form; provided that, notwithstanding<br \/>\n                  anything to the contrary herein, a holder of Abatis Shares who<br \/>\n                  is not a Canadian Resident will not be entitled to elect to<br \/>\n                  receive Exchangeable Shares and any such election otherwise<br \/>\n                  made by any such holder shall be deemed to be an election to<br \/>\n                  receive Redback Elected Shares.<\/p>\n<p>         (b)      Holders of Abatis  Shares who are  Canadian  Residents,  other<br \/>\n                  than any such holder who is exempt from tax under the ITA, and<br \/>\n                  who have elected to receive Exchangeable Shares shall be<br \/>\n                  entitled to make an income tax election pursuant to subsection<br \/>\n                  85(1) of the ITA or, if the holder is a partnership,<br \/>\n                  subsection 85(2) of the ITA (and in each case, where<br \/>\n                  applicable, the analogous provisions of provincial income tax<br \/>\n                  law) with respect to the transfer of their Abatis Shares to<br \/>\n                  Exchangeco by providing two signed copies of the necessary<br \/>\n                  election forms to the Depositary within 90 days following the<br \/>\n                  Effective Date, duly completed with the details of the number<br \/>\n                  of shares transferred and the applicable agreed amounts for<br \/>\n                  the purposes of such elections. Thereafter, subject to the<br \/>\n                  election forms complying with the provisions of the ITA (or<br \/>\n                  applicable provincial income tax law), the forms will be<br \/>\n                  signed by Exchangeco and returned to such holders of Abatis<br \/>\n                  Shares within 30 days after the receipt thereof by the<br \/>\n                  Depositary for filing with the Canada Customs and Revenue<br \/>\n                  Agency (or the applicable provincial taxing authority).<br \/>\n                  Exchangeco will not be responsible for the proper completion<br \/>\n                  of any election form and, except for Exchangeco&#8217;s obligation<br \/>\n                  to sign and return duly completed election forms which are<br \/>\n                  received by the Depositary within 90 days of the Effective<br \/>\n                  Date, within 30 days after the receipt thereof by the<br \/>\n                  Depositary, Exchangeco will not be responsible for any taxes,<br \/>\n                  interest or penalties resulting from the failure by a holder<br \/>\n                  of Abatis Shares to properly complete or file the election<br \/>\n                  forms in the form and manner and within the time prescribed by<br \/>\n                  the ITA (or any applicable provincial legislation). In its<br \/>\n                  sole discretion, Exchangeco may choose to sign and return an<br \/>\n                  election form received by the Depositary more than 90 days<br \/>\n                  following the Effective Date, but Exchangeco will have no<br \/>\n                  obligation to do so.<\/p>\n<p>2.4      ADJUSTMENTS TO EXCHANGE RATIO. The Exchange Ratio shall be adjusted to<br \/>\nreflect fully the effect of any stock split, reverse split, stock dividend<br \/>\n(including any dividend or distribution of securities convertible into Redback<br \/>\nCommon Shares or Abatis Shares), reorganization, recapitalization or other like<br \/>\nchange with respect to Redback Common Shares or <\/p>\n<p>                                       10<\/p>\n<p>Abatis Shares occurring after the date of the Arrangement Agreement and prior to<br \/>\nthe Effective Time.<\/p>\n<p>                                    ARTICLE 3<br \/>\n                                RIGHTS OF DISSENT<\/p>\n<p>3.1      RIGHTS OF DISSENT. Holders of Abatis Shares may exercise rights of<br \/>\ndissent with respect to such shares pursuant to and in the manner set forth in<br \/>\nsection 190 of the CBCA and this section 3.1 (the &#8220;DISSENT PROCEDURES&#8221;) in<br \/>\nconnection with the Arrangement; provided that, notwithstanding subsection<br \/>\n190(5) of the CBCA, the written objection to the Arrangement Resolution referred<br \/>\nto in subsection 190(5) of the CBCA must be received by Abatis not later than<br \/>\n5:00 p.m. (Vancouver time) on the last Business Day preceding the Meeting Date.<br \/>\nHolders of Abatis Shares who duly exercise such rights of dissent and who:<\/p>\n<p>         (a)      are ultimately entitled to be paid fair value for their Abatis<br \/>\n                  Shares shall be deemed to have transferred such Abatis Shares<br \/>\n                  to Exchangeco, to the extent the fair value therefor is paid<br \/>\n                  by Exchangeco, and to Abatis, to the extent the fair value<br \/>\n                  therefor is paid by Abatis, and, in the case of Abatis Shares<br \/>\n                  so transferred to Abatis, such shares shall be cancelled on<br \/>\n                  the Effective Date; or<\/p>\n<p>         (b)      are ultimately not entitled, for any reason, to be paid fair<br \/>\n                  value for their Abatis Shares shall be deemed to have<br \/>\n                  participated in the Arrangement on the same basis as a<br \/>\n                  non-dissenting holder of Abatis Shares and shall receive<br \/>\n                  Redback Common Shares on the basis determined in accordance<br \/>\n                  with section 2.2(c),<\/p>\n<p>but in no case shall Redback, Exchangeco, Newco, Abatis or any other Person be<br \/>\nrequired to recognize such holders as holders of Abatis Shares after the<br \/>\nEffective Time, and the names of such holders of Abatis Shares shall be deleted<br \/>\nfrom the registers of holders of Abatis Shares at the Effective Time.<\/p>\n<p>                                    ARTICLE 4<\/p>\n<p>                       CERTIFICATES AND FRACTIONAL SHARES<\/p>\n<p>4.1      ISSUANCE OF CERTIFICATES REPRESENTING EXCHANGEABLE SHARES. Where a<br \/>\nholder has elected in accordance with Article 2 to receive Exchangeable Shares<br \/>\nin exchange for such holder&#8217;s Abatis Shares, Redback shall, as soon as<br \/>\npracticable following the later of the Effective Date and the surrender to the<br \/>\nDepositary for cancellation of certificates representing such <\/p>\n<p>                                       11<\/p>\n<p>holder&#8217;s Abatis Shares, together with such other documents and instruments as<br \/>\nwould have been required to effect the transfer of the shares formerly<br \/>\nrepresented by such certificates under the CBCA and the by-laws of Abatis and<br \/>\nsuch additional documents and instruments as the Depositary may reasonably<br \/>\nrequire, cause the Depositary to deliver to such holder a certificate<br \/>\nrepresenting 90% of that number (rounded down to the nearest whole number) of<br \/>\nExchangeable Shares which such holder has the right to receive (together with<br \/>\nany dividends or distributions with respect thereto pursuant to section 4.4) and<br \/>\nthe certificate so surrendered shall forthwith be cancelled. In the event of a<br \/>\ntransfer of ownership of Abatis Shares that are Exchangeable Elected Shares<br \/>\nwhich is not registered in the transfer records of Abatis, a certificate<br \/>\nrepresenting the proper number of Exchangeable Shares may be issued to the<br \/>\ntransferee if the certificate representing such Abatis Shares is presented to<br \/>\nthe Depositary, accompanied by all documents required to evidence and effect<br \/>\nsuch transfer to the transferee. Until surrendered as contemplated by this<br \/>\nsection 4.1, each certificate which immediately prior to the Effective Time<br \/>\nrepresented Abatis Shares that are Exchangeable Elected Shares shall be deemed<br \/>\nat all times after the Effective Time to represent only the right to receive<br \/>\nupon such surrender (i) the certificate representing Exchangeable Shares as<br \/>\ncontemplated by this section 4.1, and (ii) any dividends or distributions with a<br \/>\nrecord date after the Effective Time theretofore paid or payable with respect to<br \/>\nExchangeable Shares as contemplated by section 4.4.<\/p>\n<p>4.2      EXCHANGE OF CERTIFICATES FOR REDBACK COMMON SHARES. Where a holder has<br \/>\nelected or is deemed to have elected in accordance with Article 2 to receive<br \/>\nRedback Common Shares in exchange for such holder&#8217;s Abatis Shares, Redback<br \/>\nshall, as soon as practicable following the later of the Effective Date and the<br \/>\nsurrender to the Depositary for cancellation of certificates representing such<br \/>\nholder&#8217;s Abatis Shares, together with such other documents and instruments as<br \/>\nwould have been required to effect the transfer of the shares formerly<br \/>\nrepresented by such certificates under the CBCA and the by-laws of Abatis and<br \/>\nsuch additional documents and instruments as the Depositary may reasonably<br \/>\nrequire, cause the Depositary to deliver to such holder a certificate<br \/>\nrepresenting 90% of that number (rounded down to the nearest whole number) of<br \/>\nRedback Common Shares which such holder has the right to receive (together with<br \/>\nany dividends or distributions with respect thereto pursuant to section 4.4) and<br \/>\nthe certificate so surrendered shall forthwith be cancelled. In the event of a<br \/>\ntransfer of ownership of Abatis Shares that are or are deemed to be Redback<br \/>\nElected Shares which is not registered in the transfer records of Abatis, a<br \/>\ncertificate representing the proper number of Redback Common Shares may be<br \/>\nissued to the transferee if the certificate representing such Abatis Shares is<br \/>\npresented to the Depositary, accompanied by all documents required to evidence<br \/>\nand effect such transfer to the transferee. Until surrendered as contemplated by<br \/>\nthis section 4.2, each certificate which <\/p>\n<p>                                       12<\/p>\n<p>immediately prior to the Effective Time represented one or more outstanding<br \/>\nAbatis Shares that are or are deemed to be Redback Elected Shares shall be<br \/>\ndeemed at all times after the Effective Time to represent only the right to<br \/>\nreceive upon such surrender (i) the certificate representing Redback Common<br \/>\nShares as contemplated by this section 4.2, and (ii) any dividends or<br \/>\ndistributions with a record date after the Effective Time theretofore paid or<br \/>\npayable with respect to Redback Common Shares as contemplated by section 4.4.<\/p>\n<p>4.3      DEPOSIT OF SECURITIES IN ESCROW. At or promptly after the Effective<br \/>\nTime, Exchangeco shall deposit, or cause to be deposited, with the Escrow Agent<br \/>\nshare certificates representing all of the Redback Common Shares and<br \/>\nExchangeable Shares comprising the Deposited Securities, being in the aggregate<br \/>\ncertificates representing all of the Escrow Securities, all of which shall be<br \/>\nheld and dealt with in accordance with the terms of the Escrow Agreement.<\/p>\n<p>4.4      DISTRIBUTIONS WITH RESPECT TO UNSURRENDERED CERTIFICATES. No dividends<br \/>\nor other distributions declared or made after the Effective Time with respect to<br \/>\nExchangeable Shares or Redback Common Shares with a record date after the<br \/>\nEffective Time shall be paid to the holder of any unsurrendered certificate<br \/>\nwhich immediately prior to the Effective Time represented outstanding Abatis<br \/>\nShares that were exchanged pursuant to section 2.2, unless and until the holder<br \/>\nof record of such certificate shall surrender such certificate in accordance<br \/>\nwith section 4.1 or 4.2. Subject to applicable law, at the time of such<br \/>\nsurrender of any such certificate (or in the case of clause (ii) below, at the<br \/>\nappropriate payment date), there shall be paid to the holder of record of the<br \/>\ncertificates representing whole Abatis Shares, without interest, (i) the amount<br \/>\nof dividends or other distributions with a record date after the Effective Time<br \/>\ntheretofore paid with respect to such whole Exchangeable Share or Redback Common<br \/>\nShare, as the case may be, and (ii) on the appropriate payment date, the amount<br \/>\nof dividends or other distributions with a record date after the Effective Time<br \/>\nbut prior to surrender and a payment date subsequent to surrender payable with<br \/>\nrespect to such whole Exchangeable Share or Redback Common Share, as the case<br \/>\nmay be.<\/p>\n<p>4.5      NO FRACTIONAL SHARES. No certificates or scrip representing fractional<br \/>\nExchangeable Shares or fractional Redback Common Shares shall be issued upon the<br \/>\nsurrender for exchange of certificates pursuant to section 4.1 and 4.2 and no<br \/>\ndividend, stock split or other change in the capital structure of Exchangeco or<br \/>\nRedback shall relate to any such fractional security and such fractional<br \/>\ninterests shall not entitle the owner thereof to exercise any rights as a<br \/>\nsecurity holder of Exchangeco or Redback, as the case may be. In lieu of any<br \/>\nsuch fractional securities, each Person otherwise entitled to a fractional<br \/>\ninterest in an Exchangeable Share or to a <\/p>\n<p>                                       13<\/p>\n<p>fractional interest in a Redback Common Share will receive a cash payment from<br \/>\nthe Depositary equal to the product of such fractional interest multiplied by<br \/>\nthe Current Market Price on the Effective Date. Redback and Exchangeco shall<br \/>\nfrom time to time as necessary provide the Depositary with funds sufficient to<br \/>\nsatisfy these obligations. The aggregate number of Exchangeable Shares and the<br \/>\naggregate number of Redback Common Shares for which no certificates are issued<br \/>\nas a result of the foregoing provisions of this section 4.5 shall be deemed to<br \/>\nhave been surrendered by the Depositary, on behalf of the owners thereof, to<br \/>\nExchangeco or Redback, as the case may be, for no additional consideration at<br \/>\nthe Effective Time.<\/p>\n<p>4.6      LOST CERTIFICATES. In the event any certificate which immediately prior<br \/>\nto the Effective Time represented one or more outstanding Abatis Shares that<br \/>\nwere exchanged pursuant to section 2.2 shall have been lost, stolen or<br \/>\ndestroyed, upon the making of an affidavit of that fact by the Person claiming<br \/>\nsuch certificate to be lost, stolen or destroyed, the Depositary will issue in<br \/>\nexchange for such lost, stolen or destroyed certificate, cash and\/or one or more<br \/>\ncertificates representing one or more Exchangeable Shares or Redback Common<br \/>\nShares (and any dividends or distributions with respect thereto) deliverable in<br \/>\naccordance with such holder&#8217;s Letter of Transmittal and Election Form. When<br \/>\nauthorizing such payment in exchange for any lost, stolen or destroyed<br \/>\ncertificate, the Person to whom certificates representing Exchangeable Shares or<br \/>\nRedback Common Shares are to be issued shall, as a condition precedent to the<br \/>\nissuance thereof, give a bond satisfactory to Exchangeco or Redback, as the case<br \/>\nmay be, and their respective transfer agents in such sum as Exchangeco or<br \/>\nRedback, as the case may be, may direct or otherwise indemnify Exchangeco or<br \/>\nRedback, as the case may be, in a manner satisfactory to Exchangeco or Redback,<br \/>\nas the case may be, against any claim that may be made against Exchangeco or<br \/>\nRedback, as the case may be, with respect to the certificate alleged to have<br \/>\nbeen lost, stolen or destroyed.<\/p>\n<p>4.7      EXTINCTION OF RIGHTS. Any certificate which immediately prior to the<br \/>\nEffective Time represented outstanding Abatis Shares that were exchanged<br \/>\npursuant to section 2.2 and not deposited, with all other instruments required<br \/>\nby section 4.1 or 4.2, on or prior to the third anniversary of the Effective<br \/>\nDate shall cease to represent a claim or interest of any kind or nature as a<br \/>\nshareholder of Exchangeco or Redback. On such date, the Exchangeable Shares or<br \/>\nRedback Common Shares to which the former registered holder of the certificate<br \/>\nreferred to in the preceding sentence was ultimately entitled shall be deemed to<br \/>\nhave been surrendered to Exchangeco or Redback, as the case may be, together<br \/>\nwith all entitlements to dividends, distributions and interest thereon held for<br \/>\nsuch former registered holder. None of Redback, Exchangeco, Newco, Abatis or the<br \/>\nDepositary shall be liable to any person in respect of any <\/p>\n<p>                                       14<\/p>\n<p>Redback Common Shares or Exchangeable Shares (or dividends, distributions and<br \/>\ninterest in respect thereof) delivered to a public official pursuant to any<br \/>\napplicable abandoned property, escheat or similar law.<\/p>\n<p>4.8      LOCK-UP OF SHARES ISSUED PURSUANT TO THE ARRANGEMENT. Notwithstanding<br \/>\nany other provision of this Plan of Arrangement or any of the documents referred<br \/>\nto herein or contemplated hereby, none of the Persons entitled to receive the<br \/>\nExchangeable Shares and Redback Common Shares to be issued pursuant to the<br \/>\nArrangement, the Redback Common Shares to be issued upon the exchange of the<br \/>\nExchangeable Shares from time to time or the Redback Common Shares to be issued<br \/>\nfrom time to time upon the exercise of the Replacement Options shall, directly<br \/>\nor indirectly, sell, offer to sell, contract to sell (including any short sale),<br \/>\ngrant any option or otherwise transfer or dispose of:<\/p>\n<p>         (a)      any of the shares so issued to such holder, at any time on or<br \/>\n                  before the 60th day following the Effective Date; or<\/p>\n<p>         (b)      more than 50% of the shares so issued to such holder, at any<br \/>\n                  time during the period commencing on the 60th day following<br \/>\n                  the Effective Date and ending on the 90th day following the<br \/>\n                  Effective Date;<\/p>\n<p>and each of Redback or Exchangeco may, at its discretion, cause the following<br \/>\nlegend to be affixed on the certificates representing such shares:<\/p>\n<p>                  &#8220;THE SECURITIES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO<br \/>\n                  A LOCK-UP PROVISION UNDER THE PLAN OF ARRANGEMENT UNDER<br \/>\n                  SECTION 192 OF THE CANADA BUSINESS CORPORATIONS ACT BETWEEN<br \/>\n                  ABATIS SYSTEMS CORPORATION AND ITS SHAREHOLDERS, AMONG OTHERS,<br \/>\n                  PURSUANT TO WHICH THE HOLDER OF THE SECURITIES REPRESENTED BY<br \/>\n                  THIS CERTIFICATE AGREES THAT SUCH HOLDER SHALL NOT OFFER TO<br \/>\n                  SELL, CONTRACT TO SELL OR OTHERWISE SELL, DISPOSE OF OR GRANT<br \/>\n                  ANY RIGHTS WITH RESPECT TO SUCH SECURITIES FOR A CERTAIN<br \/>\n                  PERIOD OF TIME (NOT TO EXCEED 90 DAYS) AFTER<br \/>\n                  _____________________________________ , 2000. THE FOREGOING<br \/>\n                  RESTRICTION PRECLUDES SUCH HOLDER FROM ENGAGING IN ANY HEDGING<br \/>\n                  OR OTHER TRANSACTIONS THAT MAY LEAD TO OR RESULT IN A SALE OF<br \/>\n                  THE SECURITIES REPRESENTED BY THIS CERTIFICATE DURING SUCH<br \/>\n                  PERIOD EVEN IF SUCH SECURITIES WOULD BE SOLD BY SOMEONE OTHER<br \/>\n                  THAN THE HOLDER&#8221;<\/p>\n<p>and provide stop-transfer instructions to their respective transfer agents with<br \/>\nrespect such restrictions.<\/p>\n<p>                                       15<\/p>\n<p>4.9       WITHHOLDING AND SALE RIGHTS. Each of Exchangeco, Newco, Redback and<br \/>\nthe Depositary shall be entitled to deduct and withhold from (i) any Redback<br \/>\nCommon Shares or other consideration otherwise issuable or payable pursuant to<br \/>\nthis Plan of Arrangement to any holder of Abatis Shares who is not a Canadian<br \/>\nResident, or (ii) any dividend or consideration otherwise payable to any holder<br \/>\nof Abatis Shares, Redback Common Shares or Exchangeable Shares, such amounts as<br \/>\nExchangeco, Newco, Redback or the Depositary, respectively, is required to<br \/>\ndeduct and withhold with respect to such issuance or payment, as the case may<br \/>\nbe, under the ITA, the United States Internal Revenue Code of 1986 or any<br \/>\nprovision of provincial, state, local or foreign tax law, in each case as<br \/>\namended. To the extent that the amount so required to be deducted or withheld<br \/>\nfrom the Redback Common Shares, dividends or consideration otherwise issuable or<br \/>\npayable to a holder exceeds the cash portion of the consideration otherwise<br \/>\npayable to such holder, each of Exchangeco, Newco, Redback and the Depositary is<br \/>\nhereby authorized to sell or otherwise dispose of, at such times and at such<br \/>\nprices as it determines, in its sole discretion, such portion of the Redback<br \/>\nCommon Shares or other non-cash consideration otherwise issuable or payable to<br \/>\nsuch holder as is necessary to provide sufficient funds to Exchangeco, Newco,<br \/>\nRedback or the Depositary, as the case may be, to enable it to comply with such<br \/>\ndeduction or withholding requirement, and shall notify the holder thereof and<br \/>\nremit to such holder any unapplied balance of the net proceeds of such sale or<br \/>\ndisposition (after deducting applicable sale commissions and any other<br \/>\nreasonable expenses relating thereto) in lieu of the Redback Common Shares or<br \/>\nother consideration so sold or disposed of. To the extent that amounts are so<br \/>\nwithheld or Redback Common Shares or other consideration are so sold or disposed<br \/>\nof, such withheld amounts, or shares or other consideration so sold or disposed<br \/>\nof, shall be treated for all purposes as having been paid to the holder of the<br \/>\nshares in respect of which such deduction, withholding, sale or disposition was<br \/>\nmade, provided that such withheld amounts, or the net proceeds of such sale or<br \/>\ndisposition, as the case may be, are actually remitted to the appropriate taxing<br \/>\nauthority. None of Exchangeco, Newco, Redback or the Depositary shall be<br \/>\nobligated to seek or obtain a minimum price for any of the Redback Common Shares<br \/>\nor other consideration sold or disposed of by it hereunder, nor shall any of<br \/>\nthem be liable for any loss arising out of any such sale or disposition.<\/p>\n<p>                                       16<\/p>\n<p>                                    ARTICLE 5<br \/>\n             CERTAIN RIGHTS OF NEWCO TO ACQUIRE EXCHANGEABLE SHARES<\/p>\n<p>5.1       NEWCO LIQUIDATION CALL RIGHT<\/p>\n<p>     (a)  Newco shall have the overriding right (the &#8220;LIQUIDATION CALL RIGHT&#8221;),<br \/>\n          in the event of and notwithstanding the proposed liquidation,<br \/>\n          dissolution or winding-up of Exchangeco pursuant to Article 5 of the<br \/>\n          Exchangeable Share Provisions, to purchase from all but not less than<br \/>\n          all of the holders of Exchangeable Shares (other than any holder of<br \/>\n          Exchangeable Shares which is an Affiliate of Redback) on the<br \/>\n          Liquidation Date all but not less than all of the Exchangeable Shares<br \/>\n          held by each such holder on payment by Newco of an amount per share<br \/>\n          (the &#8220;LIQUIDATION CALL PURCHASE PRICE&#8221;) equal to the Current Market<br \/>\n          Price of a Redback Common Share on the last Business Day prior to the<br \/>\n          Liquidation Date, which, if such right is exercised, shall be<br \/>\n          satisfied in full by Newco causing to be delivered to such holder one<br \/>\n          Redback Common Share, plus, to the extent not paid by Exchangeco, an<br \/>\n          additional amount equivalent to the full amount of all declared and<br \/>\n          unpaid dividends on each such Exchangeable Share held by such holder<br \/>\n          on any dividend record date which occurred prior to the date of<br \/>\n          purchase by Newco (the &#8220;DIVIDEND AMOUNT&#8221;). In the event of the<br \/>\n          exercise of the Liquidation Call Right by Newco, each holder shall be<br \/>\n          obligated to sell all the Exchangeable Shares held by the holder to<br \/>\n          Newco on the Liquidation Date on payment by Newco to the holder of the<br \/>\n          Liquidation Call Purchase Price for each such share, and thereafter<br \/>\n          Exchangeco shall have no obligation to redeem any Exchangeable Shares.<\/p>\n<p>     (b)  To exercise the Liquidation Call Right, Newco must notify the Transfer<br \/>\n          Agent, as agent for the holders of Exchangeable Shares, and Exchangeco<br \/>\n          of Newco&#8217;s intention to exercise such right at least 45 days before<br \/>\n          the Liquidation Date in the case of a voluntary liquidation,<br \/>\n          dissolution or winding-up of Exchangeco and at least five Business<br \/>\n          Days before the Liquidation Date in the case of an involuntary<br \/>\n          liquidation, dissolution or winding-up of Exchangeco. The Transfer<br \/>\n          Agent will notify the holders of Exchangeable Shares as to whether or<br \/>\n          not Newco has exercised the Liquidation Call Right forthwith after the<br \/>\n          expiry of the period during which the same may be exercised by Newco.<br \/>\n          If Newco exercises the Liquidation Call Right, then on the Liquidation<br \/>\n          Date Newco will purchase and the holders will sell all of the<br \/>\n          Exchangeable Shares then outstanding for a price per share equal to<br \/>\n          the Liquidation Call Purchase Price.<\/p>\n<p>                                       17<\/p>\n<p>     (c)  For the purposes of completing the purchase of the Exchangeable Shares<br \/>\n          pursuant to the Liquidation Call Right, Newco shall deposit with the<br \/>\n          Transfer Agent, on or before the Liquidation Date, certificates<br \/>\n          representing the aggregate number of Redback Common Shares deliverable<br \/>\n          by Newco and a cheque or cheques of Newco payable upon presentation at<br \/>\n          any branch of the bankers of Newco representing the aggregate Dividend<br \/>\n          Amount in payment of the total Liquidation Call Purchase Price, less<br \/>\n          any amounts withheld pursuant to section 4.9 hereof. Provided that<br \/>\n          Newco has complied with the immediately preceding sentence, on and<br \/>\n          after the Liquidation Date the rights of each holder of Exchangeable<br \/>\n          Shares will be limited to receiving the Liquidation Call Purchase<br \/>\n          Price in respect of each Exchangeable Share held by such holder,<br \/>\n          payable by Newco upon presentation and surrender by the holder of<br \/>\n          certificates representing the Exchangeable Shares held by such holder<br \/>\n          and the holder shall on and after the Liquidation Date be considered<br \/>\n          and deemed for all purposes to be the holder of the Redback Common<br \/>\n          Shares to which it is entitled. Upon surrender to the Transfer Agent<br \/>\n          of a certificate or certificates representing Exchangeable Shares,<br \/>\n          together with such other documents and instruments as may be required<br \/>\n          to effect a transfer of Exchangeable Shares under the CBCA and the<br \/>\n          articles of Exchangeco and such additional documents and instruments<br \/>\n          as the Transfer Agent may reasonably require, the holder of such<br \/>\n          surrendered certificate or certificates shall be entitled to receive<br \/>\n          in exchange therefor, and the Transfer Agent on behalf of Newco shall<br \/>\n          deliver to such holder, certificates representing the Redback Common<br \/>\n          Shares to which the holder is entitled and a cheque or cheques of<br \/>\n          Newco payable at par at any branch of the bankers of Newco in payment<br \/>\n          of the remaining portion, if any, of the total Liquidation Call<br \/>\n          Purchase Price, less any amounts withheld pursuant to section 4.9<br \/>\n          hereof. If Newco does not exercise the Liquidation Call Right in the<br \/>\n          manner described above or if Newco exercises the Liquidation Call<br \/>\n          Right but fails to complete such transaction in accordance with the<br \/>\n          requirements set out in this section 5.1, on the Liquidation Date the<br \/>\n          holders of the Exchangeable Shares will be entitled to receive in<br \/>\n          exchange therefor the liquidation price otherwise payable by<br \/>\n          Exchangeco in connection with the liquidation, dissolution or<br \/>\n          winding-up of Exchangeco pursuant to Article 5 of the Exchangeable<br \/>\n          Share Provisions.<\/p>\n<p>                                       18<\/p>\n<p>5.2       NEWCO REDEMPTION CALL RIGHT. In addition to Newco&#8217;s rights contained<br \/>\nin the Exchangeable Share Provisions, including, without limitation, the<br \/>\nRetraction Call Right (as defined in the Exchangeable Share Provisions), Newco<br \/>\nshall have the following rights in respect of the Exchangeable Shares:<\/p>\n<p>     (a)  Newco shall have the overriding right (the &#8220;REDEMPTION CALL RIGHT&#8221;),<br \/>\n          notwithstanding the proposed redemption of the Exchangeable Shares by<br \/>\n          Exchangeco pursuant to Article 7 of the Exchangeable Share Provisions,<br \/>\n          to purchase from all but not less than all of the holders of<br \/>\n          Exchangeable Shares (other than any holder of Exchangeable Shares<br \/>\n          which is an Affiliate of Redback) on the Redemption Date all but not<br \/>\n          less than all of the Exchangeable Shares held by each such holder on<br \/>\n          payment by Redback to each holder of an amount per Exchangeable Share<br \/>\n          (the &#8220;REDEMPTION CALL PURCHASE PRICE&#8221;) equal to the Current Market<br \/>\n          Price of a Redback Common Share on the last Business Day prior to the<br \/>\n          Redemption Date, which shall be satisfied in full by Newco causing to<br \/>\n          be delivered to such holder one Redback Common Share, plus the<br \/>\n          Dividend Amount. In the event of the exercise of the Redemption Call<br \/>\n          Right by Newco, each holder shall be obligated to sell all the<br \/>\n          Exchangeable Shares held by the holder to Newco on the Redemption Date<br \/>\n          on payment by Newco to the holder of the Redemption Call Purchase<br \/>\n          Price for each such share, and Exchangeco shall have no obligation to<br \/>\n          redeem, or to pay any Dividend Amount in respect of, such shares so<br \/>\n          purchased by Newco.<\/p>\n<p>     (b)  To exercise the Redemption Call Right, Newco must notify the Transfer<br \/>\n          Agent, as agent for the holders of Exchangeable Shares, and Exchangeco<br \/>\n          of Newco&#8217;s intention to exercise such right at least 60 days before<br \/>\n          the Redemption Date, except in the case of a redemption occurring as a<br \/>\n          result of a Redback Control Transaction, an Exchangeable Share Voting<br \/>\n          Event or an Exempt Exchangeable Share Voting Event, in which case<br \/>\n          Newco shall so notify the Transfer Agent and Exchangeco on or before<br \/>\n          the Redemption Date. The Transfer Agent will notify the holders of the<br \/>\n          Exchangeable Shares as to whether or not Newco has exercised the<br \/>\n          Redemption Call Right forthwith after the expiry of the period during<br \/>\n          which the same may be exercised by Newco. If Newco exercises the<br \/>\n          Redemption Call Right, on the Redemption Date Newco will purchase and<br \/>\n          the holders will sell all of the Exchangeable Shares then outstanding<br \/>\n          for a price per share equal to the Redemption Call Purchase Price.<\/p>\n<p>     (c)  For the purposes of completing the purchase of the Exchangeable Shares<br \/>\n          pursuant to the Redemption Call Right, Newco shall deposit with the<br \/>\n          Transfer Agent, on or <\/p>\n<p>                                       19<\/p>\n<p>          before the Redemption Date, certificates representing the aggregate<br \/>\n          number of Redback Common Shares deliverable by Newco and a cheque or<br \/>\n          cheques of Newco payable upon presentation at any branch of the<br \/>\n          bankers of Newco representing the aggregate Dividend Amount in payment<br \/>\n          of the total Redemption Call Purchase Price, less any amounts withheld<br \/>\n          pursuant to section 4.9 hereof. Provided that Newco has complied with<br \/>\n          the immediately preceding sentence, on and after the Redemption Date<br \/>\n          the rights of each holder of Exchangeable Shares will be limited to<br \/>\n          receiving the Redemption Call Purchase Price in respect of each<br \/>\n          Exchangeable Share held by such holder, payable by Newco upon<br \/>\n          presentation and surrender by the holder of certificates representing<br \/>\n          the Exchangeable Shares held by such holder and the holder shall on<br \/>\n          and after the Redemption Date be considered and deemed for all<br \/>\n          purposes to be the holder of the Redback Common Shares to which it is<br \/>\n          entitled. Upon surrender to the Transfer Agent of a certificate or<br \/>\n          certificates representing Exchangeable Shares, together with such<br \/>\n          other documents and instruments as may be required to effect a<br \/>\n          transfer of Exchangeable Shares under the CBCA and the by-laws of<br \/>\n          Exchangeco and such additional documents and instruments as the<br \/>\n          Transfer Agent may reasonably require, the holder of such surrendered<br \/>\n          certificate or certificates shall be entitled to receive in exchange<br \/>\n          therefor, and the Transfer Agent on behalf of Newco shall deliver to<br \/>\n          such holder, certificates representing the Redback Common Shares to<br \/>\n          which the holder is entitled less any amounts withheld pursuant to<br \/>\n          section 4.9 hereof. If Newco does not exercise the Redemption Call<br \/>\n          Right in the manner described above or if Newco exercises the<br \/>\n          Redemption Call Right but fails to complete such transaction in<br \/>\n          accordance with the requirements set out in this section 5.2, on the<br \/>\n          Redemption Date the holders of the Exchangeable Shares will be<br \/>\n          entitled to receive in exchange therefor the redemption price<br \/>\n          otherwise payable by Exchangeco in connection with the redemption of<br \/>\n          the Exchangeable Shares pursuant to Article 7 of the Exchangeable<br \/>\n          Share Provisions.<\/p>\n<p>                                    ARTICLE 6<br \/>\n                                   AMENDMENTS<\/p>\n<p>6.1       Abatis reserves the right to amend, modify and\/or supplement this Plan<br \/>\nof Arrangement at any time and from time to time prior to the Effective Date,<br \/>\nprovided that each such amendment, modification and\/ or supplement must be (i)<br \/>\nset out in writing, (ii) approved by Redback, (iii) filed with the Court and, if<br \/>\nmade following the Meeting, approved by the Court, and (iv) communicated to<br \/>\nholders of Abatis Shares and Abatis Options if and as required by the Court.<\/p>\n<p>                                       20<\/p>\n<p>6.2       Any amendment, modification or supplement to this Plan of Arrangement<br \/>\nmay be proposed by Abatis at any time prior to the Meeting (provided that<br \/>\nRedback shall have consented thereto) with or without any other prior notice or<br \/>\ncommunication, and if so proposed and accepted by the Persons voting at the<br \/>\nMeeting (other than as may be required under the Interim Order), shall become<br \/>\npart of this Plan of Arrangement for all purposes.<\/p>\n<p>6.3       Any amendment, modification or supplement to this Plan of Arrangement<br \/>\nthat is approved by the Court following the Meeting shall be effective only if<br \/>\n(i) it is consented to by each of Abatis and Redback, and (ii) if required by<br \/>\nthe Court, it is consented to by holders of the Abatis Shares or Abatis Options<br \/>\nvoting in the manner directed by the Court.<\/p>\n<p>6.4       Any amendment, modification or supplement to this Plan of Arrangement<br \/>\nmay be made following the Effective Date unilaterally by Redback, provided that<br \/>\nit concerns a matter which, in the reasonable opinion of Redback, is of an<br \/>\nadministrative nature required to better give effect to the implementation of<br \/>\nthis Plan of Arrangement and is not adverse to the financial or economic<br \/>\ninterests of any holder of Abatis Shares or Abatis Options.<\/p>\n<p>                                    ARTICLE 7<br \/>\n                               FURTHER ASSURANCES<\/p>\n<p>7.1       Notwithstanding that the transactions and events set out herein shall<br \/>\noccur and be deemed to occur in the order set out in this Plan of Arrangement<br \/>\nwithout any further act or formality, each of the parties to the Arrangement<br \/>\nAgreement shall make, do and execute, or cause to be made, done or executed, all<br \/>\nsuch further acts, deeds, agreements, transfers, assurances, instruments or<br \/>\ndocuments as may reasonably be required by any of them in order further to<br \/>\ndocument or evidence any of the transactions or events set out herein.<\/p>\n<p>                                       21<\/p>\n<p>                                   APPENDIX 1<\/p>\n<p>                           PROVISIONS ATTACHING TO THE<br \/>\n                     EXCHANGEABLE SHARES OF 610381 B.C. INC.<\/p>\n<p>          The Exchangeable Shares shall have the following rights, privileges,<br \/>\nrestrictions and conditions:<\/p>\n<p>                                    ARTICLE 1<br \/>\n                                 INTERPRETATION<\/p>\n<p>1.1       For the purposes of these share provisions:<\/p>\n<p>          &#8220;AFFILIATE&#8221; of any Person means any other Person directly or<br \/>\n          indirectly controlling, controlled by, or under common control of,<br \/>\n          that Person. For the purposes of this definition, &#8220;control&#8221;<br \/>\n          (including, with correlative meanings, the terms &#8220;controlled by&#8221; and<br \/>\n          &#8220;under common control of&#8221;), as applied to any Person, means the<br \/>\n          possession by another Person, directly or indirectly, of the power to<br \/>\n          direct or cause the direction of the management and policies of that<br \/>\n          first mentioned Person, whether through the ownership of voting<br \/>\n          securities, by contract or otherwise;<\/p>\n<p>          &#8220;ARRANGEMENT AGREEMENT&#8221; means the agreement made as of July 30, 2000<br \/>\n          among Redback, Exchangeco and Abatis Systems Corporation, as amended,<br \/>\n          supplemented and\/or restated in accordance therewith prior to the<br \/>\n          Effective Date, providing for, among other things, the Plan of<br \/>\n          Arrangement;<\/p>\n<p>          &#8220;BOARD OF DIRECTORS&#8221; means the board of directors of Exchangeco;<\/p>\n<p>          &#8220;BUSINESS DAY&#8221; means any day on which commercial banks are open for<br \/>\n          business in San Francisco, California and Vancouver, British Columbia<br \/>\n          other than a Saturday, a Sunday or a day observed as a holiday in<br \/>\n          Vancouver, British Columbia under the laws of the Province of British<br \/>\n          Columbia or the federal laws of Canada or in San Francisco, California<br \/>\n          under the laws of the State of California or the federal laws of the<br \/>\n          United States of America;<\/p>\n<p>          &#8220;CANADIAN DOLLAR EQUIVALENT&#8221; means in respect of an amount expressed<br \/>\n          in a foreign currency (the &#8220;FOREIGN CURRENCY AMOUNT&#8221;) at any date the<br \/>\n          product obtained by multiplying the Foreign Currency Amount by the<br \/>\n          noon spot exchange <\/p>\n<p>          rate on such date for such foreign currency expressed in Canadian<br \/>\n          dollars as reported by the Bank of Canada or, in the event such spot<br \/>\n          exchange rate is not available, any publicly disclosed and widely<br \/>\n          quoted exchange rate as quoted by an arm&#8217;s length third party on such<br \/>\n          date for such foreign currency expressed in Canadian dollars as may be<br \/>\n          deemed by the Board of Directors, acting reasonably, to be appropriate<br \/>\n          for such purpose;<\/p>\n<p>          &#8220;CBCA&#8221; means the CANADA BUSINESS CORPORATIONS ACT, R.S.C. 1985, c.<br \/>\n          C-44, as amended;<\/p>\n<p>          &#8220;COMMON SHARES&#8221; means the common shares in the capital of Exchangeco;<\/p>\n<p>          &#8220;COMPANY ACT&#8221; means the COMPANY ACT, R.S.B.C. 1996, c. 62, as amended;<\/p>\n<p>          &#8220;CURRENT MARKET PRICE&#8221; means, in respect of a Redback Common Share on<br \/>\n          any date, the Canadian Dollar Equivalent of the average of the closing<br \/>\n          sale price of Redback Common Shares during a period of 20 consecutive<br \/>\n          trading days ending not more than three trading days before such date<br \/>\n          on the NNM, or, if Redback Common Shares are not then quoted on the<br \/>\n          NNM, on such other stock exchange or automated quotation system on<br \/>\n          which Redback Common Shares are listed or quoted, as the case may be,<br \/>\n          as may be selected by the Board of Directors, acting reasonably, for<br \/>\n          such purpose; provided, however, that if the Redback Common Shares are<br \/>\n          not quoted on any stock exchange or automated quotation system, then<br \/>\n          the Current Market Price of a Redback Common Share shall be determined<br \/>\n          by the Board of Directors, acting reasonably, in good faith and in its<br \/>\n          sole discretion, and provided further that any such selection, opinion<br \/>\n          or determination by the Board of Directors shall be conclusive and<br \/>\n          binding;<\/p>\n<p>          &#8220;DIVIDEND AMOUNT&#8221; means an amount equal to and in satisfaction of all<br \/>\n          declared and unpaid dividends on an Exchangeable Share held by a<br \/>\n          holder on any dividend record date which occurred prior to the date of<br \/>\n          purchase of such shares by Newco from such holder;<\/p>\n<p>          &#8220;EXCHANGECO&#8221; means 610381 B.C. Inc., a company existing under the laws<br \/>\n          of the Province of British Columbia;<\/p>\n<p>          &#8220;EXCHANGE TRUST AGREEMENT&#8221; means the Exchange Trust Agreement among<br \/>\n          Redback, Exchangeco and the Trustee, to be entered into in connection<br \/>\n          with the Plan of Arrangement substantially in the form and content of<br \/>\n          Exhibit D annexed to the Arrangement Agreement, with such changes<br \/>\n          thereto as the parties to the <\/p>\n<p>                                       2<\/p>\n<p>          Arrangement Agreement, acting reasonably, may agree, in accordance<br \/>\n          with the terms thereof;<\/p>\n<p>          &#8220;EXCHANGEABLE SHARE VOTING EVENT&#8221; means any matter in respect of which<br \/>\n          holders of Exchangeable Shares are entitled, pursuant to the Company<br \/>\n          Act or other applicable law, to vote as shareholders of Exchangeco,<br \/>\n          other than an Exempt Exchangeable Share Voting Event and, for greater<br \/>\n          certainty, excluding any matter in respect of which holders of<br \/>\n          Exchangeable Shares are entitled to vote (or to instruct the Trustee<br \/>\n          to vote) in their capacity as Beneficiaries under (and as such term is<br \/>\n          defined in) the Exchange Trust Agreement;<\/p>\n<p>          &#8220;EXCHANGEABLE SHARES&#8221; mean the non-voting exchangeable shares in the<br \/>\n          capital of Exchangeco having the rights, privileges, restrictions and<br \/>\n          conditions set forth herein;<\/p>\n<p>          &#8220;EXEMPT EXCHANGEABLE SHARE VOTING EVENT&#8221; means any matter in respect<br \/>\n          of which holders of Exchangeable Shares are entitled to vote as<br \/>\n          shareholders of Exchangeco in order to approve or disapprove, as<br \/>\n          applicable, any change to the rights attached to, the Exchangeable<br \/>\n          Shares, where the approval or disapproval, as applicable, of such<br \/>\n          change would be required to maintain the equivalence of the<br \/>\n          Exchangeable Shares and Redback Common Shares;<\/p>\n<p>          &#8220;FINAL ORDER&#8221; has the meaning ascribed thereto in the Plan of<br \/>\n          Arrangement;<\/p>\n<p>          &#8220;HOLDER&#8221; means, when used with reference to the Exchangeable Shares, a<br \/>\n          holder of Exchangeable Shares as shown from time to time on the<br \/>\n          register of members maintained by or on behalf of Exchangeco in<br \/>\n          respect of the Exchangeable Shares;<\/p>\n<p>          &#8220;LIQUIDATION AMOUNT&#8221; has the meaning ascribed thereto in section 5.1<br \/>\n          of these share provisions;<\/p>\n<p>          &#8220;LIQUIDATION CALL RIGHT&#8221; has the meaning ascribed thereto in the Plan<br \/>\n          of Arrangement;<\/p>\n<p>          &#8220;LIQUIDATION DATE&#8221; has the meaning ascribed thereto in section 5.1 of<br \/>\n          these share provisions;<\/p>\n<p>          &#8220;NEWCO&#8221; means 610380 B.C. Inc., a corporation existing under laws of<br \/>\n          the Province of British Columbia and being a wholly-owned subsidiary<br \/>\n          of Redback;<\/p>\n<p>                                       3<\/p>\n<p>          &#8220;NEWCO CALL NOTICE&#8221; has the meaning ascribed thereto in section 6.3 of<br \/>\n          these share provisions;<\/p>\n<p>          &#8220;NNM&#8221; means the distinct tier of The Nasdaq Stock Market referred to<br \/>\n          as the Nasdaq National Market;<\/p>\n<p>          &#8220;PERSON&#8221; includes any individual, firm, partnership, joint venture,<br \/>\n          venture capital fund, association, trust, trustee, executor,<br \/>\n          administrator, legal personal representative, estate, group, body<br \/>\n          corporate, corporation, company, unincorporated association or<br \/>\n          organization, government body, syndicate or other entity, whether or<br \/>\n          not having legal status;<\/p>\n<p>          &#8220;PLAN OF ARRANGEMENT&#8221; means the plan of arrangement under section 192<br \/>\n          of the CBCA, substantially in the form and content of Exhibit E<br \/>\n          annexed to the Arrangement Agreement and any amendments or variations<br \/>\n          thereto made in accordance with section 7.1 of the Arrangement<br \/>\n          Agreement or Article 6 of the Plan of Arrangement or made at the<br \/>\n          direction of the Court in the Final Order;<\/p>\n<p>          &#8220;PREFERRED SHARES&#8221; means the preferred shares in the capital of<br \/>\n          Exchangeco;<\/p>\n<p>          &#8220;PURCHASE PRICE&#8221; has the meaning ascribed thereto in section 6.3 of<br \/>\n          these share provisions;<\/p>\n<p>          &#8220;REDBACK&#8221; means Redback Networks Inc., a corporation existing under<br \/>\n          the laws of the State of Delaware, and any successor corporation<br \/>\n          thereto;<\/p>\n<p>          &#8220;REDBACK COMMON SHARE&#8221; mean a share of common stock, par value U.S.<br \/>\n          $0.0001, in the capital of Redback, and any other securities into<br \/>\n          which such share may be changed;<\/p>\n<p>          &#8220;REDBACK CONTROL TRANSACTION&#8221; means any merger, amalgamation, tender<br \/>\n          offer, material sale of shares or rights or interests therein or<br \/>\n          thereto or similar transactions involving Redback, or any proposal to<br \/>\n          do so;<\/p>\n<p>          &#8220;REDBACK DIVIDEND DECLARATION DATE&#8221; means the date on which the board<br \/>\n          of directors of Redback declares any dividend on Redback Common<br \/>\n          Shares;<\/p>\n<p>          &#8220;REDEMPTION CALL PURCHASE PRICE&#8221; has the meaning ascribed thereto in<br \/>\n          the Plan of Arrangement;<\/p>\n<p>                                       4<\/p>\n<p>          &#8220;REDEMPTION CALL RIGHT&#8221; has the meaning ascribed thereto in the Plan<br \/>\n          of Arrangement;<\/p>\n<p>          &#8220;REDEMPTION DATE&#8221; means the date, if any, established by the Board of<br \/>\n          Directors for the redemption by Exchangeco of all but not less than<br \/>\n          all of the outstanding Exchangeable Shares pursuant to Article 7 of<br \/>\n          these share provisions, which date shall be no earlier than January<br \/>\n          31, 2010, unless:<\/p>\n<p>          (a)  there are outstanding fewer than 5% of the number of Exchangeable<br \/>\n               Shares originally issued and outstanding on the date of filing<br \/>\n               under the CBCA of articles of arrangement attaching to the Plan<br \/>\n               of Arrangement (other than Exchangeable Shares held by Redback<br \/>\n               and its Affiliates, and as such number of shares may be adjusted<br \/>\n               as deemed appropriate by the Board of Directors to give effect to<br \/>\n               any subdivision or consolidation of, or stock dividend on, the<br \/>\n               Exchangeable Shares, any issue or distribution of rights to<br \/>\n               acquire Exchangeable Shares or securities exchangeable for or<br \/>\n               convertible into Exchangeable Shares, any issue or distribution<br \/>\n               of other securities or rights or evidences of indebtedness or<br \/>\n               assets, or any other capital reorganization or other transaction<br \/>\n               affecting the Exchangeable Shares), in which case the Board of<br \/>\n               Directors may accelerate such redemption date to such date prior<br \/>\n               to January 31, 2010 as it may determine, upon at least 60 days&#8217;<br \/>\n               prior written notice to the registered holders of the<br \/>\n               Exchangeable Shares;<\/p>\n<p>          (b)  a Redback Control Transaction occurs, in which case, provided<br \/>\n               that the Board of Directors determines, in good faith and in its<br \/>\n               sole discretion, after considering the interests of the holders<br \/>\n               of the Exchangeable Shares as well as the interests of all other<br \/>\n               persons which the Board of Directors is required to consider,<br \/>\n               that it is not reasonably practicable to substantially replicate<br \/>\n               the terms and conditions of the Exchangeable Shares in connection<br \/>\n               with such Redback Control Transaction and that the redemption of<br \/>\n               all but not less than all of the outstanding Exchangeable Shares<br \/>\n               is necessary to enable the completion of such Redback Control<br \/>\n               Transaction in accordance with its terms, the Board of Directors<br \/>\n               may accelerate such redemption date to such date prior to January<br \/>\n               31, 2010 as they may determine, upon such number of days&#8217; prior<br \/>\n               written notice to the registered holders of the Exchangeable<br \/>\n               Shares as the Board of Directors may determine to be reasonably<br \/>\n               practicable in the circumstances;<\/p>\n<p>                                       5<\/p>\n<p>          (c)  an Exchangeable Share Voting Event is proposed, in which case,<br \/>\n               provided that the Board of Directors has determined, in good<br \/>\n               faith and in its sole discretion, after considering the interests<br \/>\n               of the holders of the Exchangeable Shares as well as the<br \/>\n               interests of all other persons which the Board of Directors is<br \/>\n               required to consider, that it is not reasonably practicable to<br \/>\n               accomplish the business purpose intended by the Exchangeable<br \/>\n               Share Voting Event, which business purpose must be bona fide and<br \/>\n               not for the primary purpose of causing the occurrence of a<br \/>\n               Redemption Date, in any other commercially reasonable manner that<br \/>\n               does not result in an Exchangeable Share Voting Event, the<br \/>\n               redemption date shall be the Business Day prior to the record<br \/>\n               date for any meeting or vote of the holders of the Exchangeable<br \/>\n               Shares to consider the Exchangeable Share Voting Event and the<br \/>\n               Board of Directors shall give such number of days&#8217; prior written<br \/>\n               notice of such redemption to the registered holders of the<br \/>\n               Exchangeable Shares as the Board of Directors may determine to be<br \/>\n               reasonably practicable in the circumstances; or<\/p>\n<p>          (d)  an Exempt Exchangeable Share Voting Event is proposed and the<br \/>\n               holders of the Exchangeable Shares fail to take the necessary<br \/>\n               action at a meeting or other vote of holders of Exchangeable<br \/>\n               Shares, to approve or disapprove, as applicable, the Exempt<br \/>\n               Exchangeable Share Voting Event, in which case the redemption<br \/>\n               date shall be the Business Day following the day on which the<br \/>\n               holders of the Exchangeable Shares failed to take such action and<br \/>\n               the Board of Directors shall give such number of days&#8217; prior<br \/>\n               written notice of such redemption to the registered holders of<br \/>\n               the Exchangeable Shares as the Board of Directors may determine<br \/>\n               to be reasonably practicable in such circumstances,<\/p>\n<p>          provided, however, that the accidental failure or omission to give any<br \/>\n          notice of redemption under clauses (a), (b), (c) or (d) above to less<br \/>\n          than 10% of such holders of Exchangeable Shares shall not affect the<br \/>\n          validity of any such redemption;<\/p>\n<p>          &#8220;REDEMPTION PRICE&#8221; has the meaning ascribed thereto in section 7.1 of<br \/>\n          these share provisions;<\/p>\n<p>          &#8220;RETRACTED SHARES&#8221; has the meaning ascribed thereto in section 6.1(a)<br \/>\n          of these share provisions;<\/p>\n<p>                                       6<\/p>\n<p>          &#8220;RETRACTION CALL RIGHT&#8221; has the meaning ascribed thereto in section<br \/>\n          6.1(c) of these share provisions;<\/p>\n<p>          &#8220;RETRACTION DATE&#8221; has the meaning ascribed thereto in section 6.1(b)<br \/>\n          of these share provisions;<\/p>\n<p>          &#8220;RETRACTION PRICE&#8221; has the meaning ascribed thereto in section 6.1 of<br \/>\n          these share provisions;<\/p>\n<p>          &#8220;RETRACTION REQUEST&#8221; has the meaning ascribed thereto in section 6.1<br \/>\n          of these share provisions;<\/p>\n<p>          &#8220;SUPPORT AGREEMENT&#8221; means the Support Agreement among Redback, Newco<br \/>\n          and Exchangeco, to be entered into in connection with the Plan of<br \/>\n          Arrangement substantially in the form and content of Exhibit G annexed<br \/>\n          to the Arrangement Agreement, with such changes thereto as the parties<br \/>\n          thereto, acting reasonably, may agree, in accordance with the terms<br \/>\n          thereof;<\/p>\n<p>          &#8220;TRANSFER AGENT&#8221; means Montreal Trust Company of Canada or such other<br \/>\n          Person as may from time to time be appointed by Exchangeco as the<br \/>\n          registrar and transfer agent for the Exchangeable Shares;<\/p>\n<p>          &#8220;TRANSFER AGENT&#8217;S OFFICE&#8221; means the Transfer Agent&#8217;s principal<br \/>\n          corporate office in the City of Vancouver or such other office of the<br \/>\n          Transfer Agent as may be specified, from time to time, by Exchangeco<br \/>\n          by notice to the holders of Exchangeable Shares; and<\/p>\n<p>          &#8220;TRUSTEE&#8221; means the trustee chosen by Redback and Abatis Systems<br \/>\n          Corporation, acting reasonably, to act as trustee under the Exchange<br \/>\n          Trust Agreement, being a corporation organized and existing under the<br \/>\n          federal laws of Canada and authorized to carry on the business of a<br \/>\n          trust company in each of the Provinces of Canada and any successor<br \/>\n          trustee appointed under the Exchange Trust Agreement.<\/p>\n<p>                                       7<\/p>\n<p>                                    ARTICLE 2<br \/>\n                         RANKING OF EXCHANGEABLE SHARES<\/p>\n<p>2.1       The Exchangeable Shares shall be entitled to a preference over the<br \/>\nCommon Shares and any other shares ranking junior to the Exchangeable Shares,<br \/>\nbut shall rank junior to the Preferred Shares, with respect to the payment of<br \/>\ndividends and the distribution of assets in the event of the liquidation,<br \/>\ndissolution or winding-up of Exchangeco, whether voluntary or involuntary, or<br \/>\nany other distribution of the assets of Exchangeco among its members for the<br \/>\npurpose of winding up its affairs.<\/p>\n<p>                                    ARTICLE 3<br \/>\n                                    DIVIDENDS<\/p>\n<p>3.1       A holder of an Exchangeable Share shall be entitled to receive and the<br \/>\nBoard of Directors shall, subject to applicable law, on each Redback Dividend<br \/>\nDeclaration Date, declare a dividend on each Exchangeable Share:<\/p>\n<p>     (a)  in the case of a cash dividend declared on Redback Common Shares, in<br \/>\n          an amount in cash for each Exchangeable Share in U.S. dollars, or the<br \/>\n          Canadian Dollar Equivalent thereof on the Redback Dividend Declaration<br \/>\n          Date, in each case, corresponding to the cash dividend declared on<br \/>\n          each Redback Common Share;<\/p>\n<p>     (b)  in the case of a stock dividend declared on Redback Common Shares to<br \/>\n          be paid in Redback Common Shares, in such number of Exchangeable<br \/>\n          Shares for each Exchangeable Share as is equal to the number of<br \/>\n          Redback Common Shares to be paid on each Redback Common Share; or<\/p>\n<p>     (c)  in the case of a dividend declared on Redback Common Shares in<br \/>\n          property other than cash or Redback Common Shares, in such type and<br \/>\n          amount of property for each Exchangeable Share as is the same as or<br \/>\n          economically equivalent to (to be determined by the Board of Directors<br \/>\n          as contemplated by section 3.5 hereof) the type and amount of property<br \/>\n          declared as a dividend on each Redback Common Share.<\/p>\n<p>Such dividends shall be paid out of money, assets or property of Exchangeco<br \/>\nproperly applicable to the payment of dividends, or out of authorized but<br \/>\nunissued shares of Exchangeco, as applicable.<\/p>\n<p>                                       8<\/p>\n<p>3.2       Cheques of Exchangeco payable upon presentation at any branch of the<br \/>\nbankers of Exchangeco shall be issued in respect of any cash dividends<br \/>\ncontemplated by section 3.1(a) hereof and the sending of such a cheque to each<br \/>\nholder of an Exchangeable Share shall satisfy the cash dividend represented<br \/>\nthereby unless the cheque is not paid on presentation. Certificates registered<br \/>\nin the name of the registered holder of Exchangeable Shares shall be issued or<br \/>\ntransferred in respect of any stock dividends contemplated by section 3.1(b)<br \/>\nhereof and the sending of such a certificate to each holder of an Exchangeable<br \/>\nShare shall satisfy the stock dividend represented thereby. Any other type and<br \/>\namount of property in respect of any dividends contemplated by section 3.1(c)<br \/>\nhereof shall be issued, distributed or transferred by Exchangeco in such manner<br \/>\nas the Board of Directors shall determine and the issuance, distribution or<br \/>\ntransfer thereof by Exchangeco to each holder of an Exchangeable Share shall<br \/>\nsatisfy the dividend represented thereby. No holder of an Exchangeable Share<br \/>\nshall be entitled to recover by action or other legal process against Exchangeco<br \/>\nany cash dividend that is represented by a cheque that has not been duly<br \/>\npresented to Exchangeco&#8217;s bankers for payment or that otherwise remains<br \/>\nunclaimed for a period of six years from the date on which such dividend was<br \/>\npayable.<\/p>\n<p>3.3       The record date for the determination of the holders of Exchangeable<br \/>\nShares entitled to receive payment of, and the payment date for, any dividend<br \/>\ndeclared on the Exchangeable Shares under section 3.1 hereof shall be the same<br \/>\ndates as the record date and payment date, respectively, for the corresponding<br \/>\ndividend declared on Redback Common Shares.<\/p>\n<p>3.4       If on any payment date for any dividends declared on the Exchangeable<br \/>\nShares under section 3.1 hereof the dividends are not paid in full on all of the<br \/>\nExchangeable Shares then outstanding, any such dividends that remain unpaid<br \/>\nshall be paid on a subsequent date or dates determined by the Board of Directors<br \/>\non which Exchangeco shall have sufficient moneys, assets or property properly<br \/>\napplicable to the payment of such dividends.<\/p>\n<p>3.5       The Board of Directors shall determine, in good faith and in its sole<br \/>\ndiscretion, economic equivalence for the purposes of section 3.1 hereof, and<br \/>\neach such determination shall be conclusive and binding on Exchangeco and its<br \/>\nshareholders. In making each such determination, the following factors shall,<br \/>\nwithout excluding other factors determined by the Board of Directors to be<br \/>\nrelevant, be considered by the Board of Directors:<\/p>\n<p>                                       9<\/p>\n<p>     (a)  in the case of any stock dividend or other distribution payable in<br \/>\n          Redback Common Shares, the number of such shares issued in proportion<br \/>\n          to the number of Redback Common Shares previously outstanding;<\/p>\n<p>     (b)  in the case of the issuance or distribution of any rights, options or<br \/>\n          warrants to subscribe for or purchase Redback Common Shares (or<br \/>\n          securities exchangeable for or convertible into or carrying rights to<br \/>\n          acquire Redback Common Shares), the relationship between the exercise<br \/>\n          price of each such right, option or warrant and the Current Market<br \/>\n          Price;<\/p>\n<p>     (c)  in the case of the issuance or distribution of any other form of<br \/>\n          property (including without limitation any shares or securities of<br \/>\n          Redback of any class other than Redback Common Shares, any rights,<br \/>\n          options or warrants other than those referred to in section 3.5(a)<br \/>\n          above, any evidences of indebtedness of Redback or any assets of<br \/>\n          Redback), the relationship between the fair market value (as<br \/>\n          determined by the Board of Directors in the manner contemplated above)<br \/>\n          of such property to be issued or distributed with respect to each<br \/>\n          outstanding Redback Common Share and the Current Market Price;<\/p>\n<p>     (d)  in the case of any subdivision, redivision or change of the then<br \/>\n          outstanding Redback Common Shares into a greater number of Redback<br \/>\n          Common Shares or the reduction, combination, consolidation or change<br \/>\n          of the then outstanding Redback Common Shares into a lesser number of<br \/>\n          Redback Common Shares or any amalgamation, merger, reorganization or<br \/>\n          other transaction affecting Redback Common Shares, the effect thereof<br \/>\n          upon the then outstanding Redback Common Shares; or<\/p>\n<p>     (e)  in all such cases, the general taxation consequences of the relevant<br \/>\n          event to holders of Exchangeable Shares to the extent that such<br \/>\n          consequences may differ from the taxation consequences to holders of<br \/>\n          Redback Common Shares as a result of differences between taxation laws<br \/>\n          of Canada and the United States (except for any differing consequences<br \/>\n          arising as a result of differing marginal taxation rates and without<br \/>\n          regard to the individual circumstances of holders of Exchangeable<br \/>\n          Shares).<\/p>\n<p>                                       10<\/p>\n<p>                                    ARTICLE 4<br \/>\n                              CERTAIN RESTRICTIONS<\/p>\n<p>4.1       So long as any of the Exchangeable Shares are outstanding, Exchangeco<br \/>\nshall not at any time without, but may at any time with, the approval of the<br \/>\nholders of the Exchangeable Shares given as specified in section 10.2 of these<br \/>\nshare provisions:<\/p>\n<p>     (a)  pay any dividends on the Common Shares or any other shares ranking<br \/>\n          junior to the Exchangeable Shares, other than stock dividends payable<br \/>\n          in Common Shares or any such other shares ranking junior to the<br \/>\n          Exchangeable Shares, as the case may be;<\/p>\n<p>     (b)  redeem or purchase or make any capital distribution in respect of<br \/>\n          Common Shares or any other shares ranking junior to the Exchangeable<br \/>\n          Shares; or<\/p>\n<p>     (c)  redeem or purchase any other shares of Exchangeco ranking equally with<br \/>\n          the Exchangeable Shares with respect to the payment of dividends or on<br \/>\n          any liquidation distribution.<\/p>\n<p>The restrictions in sections 4.1(a), (b) and (c) above shall not apply if all<br \/>\ndividends on the outstanding Exchangeable Shares corresponding to dividends<br \/>\ndeclared and paid to date on Redback Common Shares shall have been declared and<br \/>\npaid on the Exchangeable Shares.<\/p>\n<p>                                    ARTICLE 5<br \/>\n                           DISTRIBUTION ON LIQUIDATION<\/p>\n<p>5.1       In the event of the liquidation, dissolution or winding-up of<br \/>\nExchangeco or any other distribution of the assets of Exchangeco among its<br \/>\nmembers for the purpose of winding up its affairs, a holder of Exchangeable<br \/>\nShares shall be entitled, subject to applicable law, to receive from the assets<br \/>\nof Exchangeco in respect of each Exchangeable Share held by such holder on the<br \/>\neffective date (the &#8220;LIQUIDATION DATE&#8221;) of such liquidation, dissolution or<br \/>\nwinding-up, before any distribution of any part of the assets of Exchangeco<br \/>\namong the holders of the Common Shares or any other shares ranking junior to the<br \/>\nExchangeable Shares, an amount per share equal to the Current Market Price of a<br \/>\nRedback Common Share on the last Business Day prior to the Liquidation Date (the<br \/>\n&#8220;LIQUIDATION AMOUNT&#8221;), which shall be satisfied in full by Exchangeco causing to<br \/>\nbe delivered to such holder one Redback Common Share, together with the Dividend<br \/>\nAmount.<\/p>\n<p>                                       11<\/p>\n<p>5.2       On or promptly after the Liquidation Date, and subject to the exercise<br \/>\nby Newco of the Liquidation Call Right, Exchangeco shall cause to be delivered<br \/>\nto the holders of the Exchangeable Shares the Liquidation Amount for each such<br \/>\nExchangeable Share upon presentation and surrender of the certificates<br \/>\nrepresenting such Exchangeable Shares, together with such other documents and<br \/>\ninstruments as may be required to effect a transfer of Exchangeable Shares under<br \/>\nthe Company Act and the articles of Exchangeco and such additional documents and<br \/>\ninstruments as the Transfer Agent and Exchangeco may reasonably require, at the<br \/>\nregistered office of Exchangeco or at the Transfer Agent&#8217;s Office. Payment of<br \/>\nthe Liquidation Amount for each such Exchangeable Share shall be made by<br \/>\ndelivery to each holder, at the address of the holder recorded in the register<br \/>\nof members of Exchangeco for the Exchangeable Shares or by holding for pick-up<br \/>\nby the holder at the registered office of Exchangeco or at the Transfer Agent&#8217;s<br \/>\nOffice, on behalf of Exchangeco of certificates representing Redback Common<br \/>\nShares (which shares shall be duly issued as fully paid and non-assessable and<br \/>\nshall be free and clear of any lien, claim or encumbrance) and a cheque of<br \/>\nExchangeco payable upon presentation at any branch of the bankers of Exchangeco<br \/>\nin respect of the remaining portion, if any, of the total Liquidation Amount (in<br \/>\neach case less any amounts withheld on account of tax required to be deducted<br \/>\nand withheld therefrom) (without interest). On and after the Liquidation Date,<br \/>\nthe holders of the Exchangeable Shares shall cease to be holders of such<br \/>\nExchangeable Shares and shall not be entitled to exercise any of the rights of<br \/>\nholders in respect thereof, other than the right to receive the Liquidation<br \/>\nAmount, unless payment of the total Liquidation Amount for such Exchangeable<br \/>\nShares shall not be made upon presentation and surrender of share certificates<br \/>\nin accordance with the foregoing provisions, in which case the rights of the<br \/>\nholders shall remain unaffected until the total Liquidation Amount has been paid<br \/>\nin the manner provided above. Exchangeco shall have the right at any time after<br \/>\nthe Liquidation Date to deposit or cause to be deposited the total Liquidation<br \/>\nAmount in respect of the Exchangeable Shares represented by certificates that<br \/>\nhave not at the Liquidation Date been surrendered by the holders thereof in a<br \/>\ncustodial account with any chartered bank or trust company in Canada. Upon such<br \/>\ndeposit being made, the rights of the holders of Exchangeable Shares after such<br \/>\ndeposit shall be limited to receiving the Liquidation Amount (in each case less<br \/>\nany amounts withheld on account of tax required to be deducted and withheld<br \/>\ntherefrom) (without interest) for such Exchangeable Shares so deposited, against<br \/>\npresentation and surrender of the said certificates held by them, respectively,<br \/>\nin accordance with the foregoing provisions. Upon such payment or deposit of the<br \/>\ntotal Liquidation Amount, the holders of the Exchangeable Shares shall<br \/>\nthereafter be considered and deemed for all purposes to be holders of Redback<br \/>\nCommon Shares delivered to them.<\/p>\n<p>                                       12<\/p>\n<p>5.3       After Exchangeco has satisfied its obligations to pay the holders of<br \/>\nthe Exchangeable Shares the Liquidation Amount per Exchangeable Share pursuant<br \/>\nto Article 5 of these share provisions, such holders shall not be entitled to<br \/>\nshare in any further distribution of the assets of Exchangeco.<\/p>\n<p>                                    ARTICLE 6<br \/>\n                   RETRACTION OF EXCHANGEABLE SHARES BY HOLDER<\/p>\n<p>6.1       A holder of Exchangeable Shares shall be entitled at any time, subject<br \/>\nto the exercise by Newco of the Retraction Call Right and otherwise upon<br \/>\ncompliance with the provisions of this Article 6, to require Exchangeco to<br \/>\nredeem any or all of the Exchangeable Shares registered in the name of such<br \/>\nholder for an amount per share equal to the Current Market Price of a Redback<br \/>\nCommon Share on the last Business Day prior to the Retraction Date (the<br \/>\n&#8220;RETRACTION PRICE&#8221;), which shall be satisfied in full by Exchangeco causing to<br \/>\nbe delivered to such holder one Redback Common Share for each Exchangeable Share<br \/>\npresented and surrendered by the holder, together with, on the payment date<br \/>\ntherefor, the full amount of all declared and unpaid dividends on any such<br \/>\nExchangeable Share held by such holder on any dividend record date which<br \/>\noccurred prior to the Retraction Date. To effect such redemption, the holder<br \/>\nshall present and surrender at the registered office of Exchangeco or at the<br \/>\nTransfer Agent&#8217;s Office the certificate or certificates representing the<br \/>\nExchangeable Shares which the holder desires to have Exchangeco redeem, together<br \/>\nwith such other documents and instruments as may be required to effect a<br \/>\ntransfer of Exchangeable Shares under the Company Act and the articles of<br \/>\nExchangeco and such additional documents and instruments as the Transfer Agent<br \/>\nand Exchangeco may reasonably require, together with a duly executed statement<br \/>\n(THE &#8220;RETRACTION REQUEST&#8221;) in the form of Schedule A hereto or in such other<br \/>\nform as may be acceptable to Exchangeco:<\/p>\n<p>     (a)  specifying that the holder desires to have all or any number specified<br \/>\n          therein of the Exchangeable Shares represented by such certificate or<br \/>\n          certificates (the &#8220;RETRACTED SHARES&#8221;) redeemed by Exchangeco;<\/p>\n<p>     (b)  stating the Business Day on which the holder desires to have<br \/>\n          Exchangeco redeem the Retracted Shares (the &#8220;RETRACTION DATE&#8221;),<br \/>\n          provided that the Retraction Date shall be not less than 10 Business<br \/>\n          Days nor more than 15 Business Days after the date on which the<br \/>\n          Retraction Request is received by Exchangeco and further provided<br \/>\n          that, in the event that no such Business Day is specified by the<br \/>\n          holder in the Retraction Request, the Retraction Date shall be deemed<br \/>\n          to be the 15th<\/p>\n<p>                                       13<\/p>\n<p>          Business Day after the date on which the Retraction Request is<br \/>\n          received by Exchangeco; and<\/p>\n<p>     (c)  acknowledging the overriding right (the &#8220;RETRACTION CALL RIGHT&#8221;) of<br \/>\n          Newco to purchase all but not less than all the Retracted Shares<br \/>\n          directly from the holder and that the Retraction Request shall be<br \/>\n          deemed to be a revocable offer by the holder to sell the Retracted<br \/>\n          Shares to Newco in accordance with the Retraction Call Right on the<br \/>\n          terms and conditions set out in section 6.3 below.<\/p>\n<p>6.2       Subject to the exercise by Newco of the Retraction Call Right, upon<br \/>\nreceipt by Exchangeco or the Transfer Agent in the manner specified in section<br \/>\n6.1 hereof of a certificate or certificates representing the Retracted Shares,<br \/>\ntogether with such other documents and instruments as may be required to effect<br \/>\na transfer of Exchangeable Shares under the Company Act and the articles of<br \/>\nExchangeco and such additional documents and instruments as the Transfer Agent<br \/>\nand Exchangeco may reasonably require, together with a duly executed Retraction<br \/>\nRequest, and provided that the Retraction Request is not revoked by the holder<br \/>\nin the manner specified in section 6.7, Exchangeco shall redeem the Retracted<br \/>\nShares effective at the close of business on the Retraction Date and shall cause<br \/>\nto be delivered to such holder the total Retraction Price with respect to such<br \/>\nshares, provided that all declared and unpaid dividends for which the record<br \/>\ndate has occurred prior to the Retraction Date shall be paid on the payment date<br \/>\nfor such dividends. If only a part of the Exchangeable Shares represented by any<br \/>\ncertificate is redeemed (or purchased by Newco pursuant to the Retraction Call<br \/>\nRight), a new certificate for the balance of such Exchangeable Shares shall be<br \/>\nissued to the holder at the expense of Exchangeco.<\/p>\n<p>6.3       Upon receipt by Exchangeco of a Retraction Request, Exchangeco shall<br \/>\nimmediately notify Newco thereof. In order to exercise the Retraction Call<br \/>\nRight, Newco must notify Exchangeco of its determination to do so (the &#8220;NEWCO<br \/>\nCALL NOTICE&#8221;) within three Business Days of notification to Newco by Exchangeco<br \/>\nof the receipt by Exchangeco of the Retraction Request. If Newco does not so<br \/>\nnotify Exchangeco within such three Business Day period, Exchangeco will notify<br \/>\nthe holder as soon as possible thereafter that Newco will not exercise the<br \/>\nRetraction Call Right. If Newco delivers the Newco Call Notice within such three<br \/>\nBusiness Day period, and provided that the Retraction Request is not revoked by<br \/>\nthe holder in the manner specified in section 6.7, the Retraction Request shall<br \/>\nthereupon be considered only to be an offer by the holder to sell the Retracted<br \/>\nShares to Newco in accordance with the Retraction Call Right. In such event,<br \/>\nExchangeco shall not redeem the Retracted Shares and Newco shall <\/p>\n<p>                                       14<\/p>\n<p>purchase from such holder and such holder shall sell to Newco on the Retraction<br \/>\nDate the Retracted Shares for a purchase price (the &#8220;PURCHASE PRICE&#8221;) per share<br \/>\nequal to the Retraction Price per share, plus, on the designated payment date<br \/>\ntherefor, to the extent not paid by Exchangeco on the designated payment date<br \/>\ntherefor, any Dividend Amount. For the purposes of completing a purchase<br \/>\npursuant to the Retraction Call Right, Newco shall deposit with the Transfer<br \/>\nAgent, on or before the Retraction Date, certificates representing Redback<br \/>\nCommon Shares and a cheque or cheques of Newco payable upon presentation at any<br \/>\nbranch of the bankers of Newco representing the aggregate Dividend Amount, less<br \/>\nany amounts withheld on account of tax required to be deducted and withheld<br \/>\ntherefrom (without interest). Provided that Newco has complied with the<br \/>\nimmediately preceding sentence, the closing of the purchase and sale of the<br \/>\nRetracted Shares pursuant to the Retraction Call Right shall be deemed to have<br \/>\noccurred as at the close of business on the Retraction Date and, for greater<br \/>\ncertainty, no redemption by Exchangeco of such Retracted Shares shall take place<br \/>\non the Retraction Date. In the event that Newco does not deliver a Newco Call<br \/>\nNotice within such three Business Day period, and provided that the Retraction<br \/>\nRequest is not revoked by the holder in the manner specified in section 6.7,<br \/>\nExchangeco shall redeem the Retracted Shares on the Retraction Date and in the<br \/>\nmanner otherwise contemplated in this Article 6.<\/p>\n<p>6.4       Exchangeco or Newco, as the case may be, shall deliver or cause the<br \/>\nTransfer Agent to deliver to the holder of the Retracted Shares, at the address<br \/>\nof the holder recorded in the register of members of Exchangeco for the<br \/>\nExchangeable Shares or at the address specified in the holder&#8217;s Retraction<br \/>\nRequest or by holding for pick-up by the holder at the registered office of<br \/>\nExchangeco or at the Transfer Agent&#8217;s Office, certificates representing Redback<br \/>\nCommon Shares (which shares shall be duly issued as fully paid and<br \/>\nnon-assessable and shall be free and clear of any lien, claim or encumbrance)<br \/>\nregistered in the name of the holder or in such other name as the holder may<br \/>\nrequest, and, if applicable and on or before the payment date therefor, a cheque<br \/>\npayable upon presentation at any branch of the bankers of Exchangeco or Newco,<br \/>\nas applicable, representing the aggregate Dividend Amount in payment of the<br \/>\ntotal Retraction Price or the total Purchase Price, as the case may be, in each<br \/>\ncase, less any amounts withheld on account of tax required to be deducted and<br \/>\nwithheld therefrom (without interest). The delivery of such certificates and<br \/>\ncheques on behalf of Exchangeco or by Newco, as the case may be, or by the<br \/>\nTransfer Agent shall be deemed to be payment of and shall satisfy and discharge<br \/>\nall liability for the total Retraction Price or total Purchase Price, as the<br \/>\ncase may be, to the extent that the same is represented by such share<br \/>\ncertificates and cheques (plus any tax deducted and withheld therefrom and<br \/>\nremitted to the proper tax authority), unless such cheques are not paid on due<br \/>\npresentation.<\/p>\n<p>                                       15<\/p>\n<p>6.5       On and after the close of business on the Retraction Date, the holder<br \/>\nof the Retracted Shares shall cease to be a holder of such Retracted Shares and<br \/>\nshall not be entitled to exercise any of the rights of a holder in respect<br \/>\nthereof, other than the right to receive his proportionate part of the total<br \/>\nRetraction Price or total Purchase Price, as the case may be, unless upon<br \/>\npresentation and surrender of certificates in accordance with the foregoing<br \/>\nprovisions, payment of the total Retraction Price or the total Purchase Price,<br \/>\nas the case may be, shall not be made as provided in section 6.4, in which case<br \/>\nthe rights of such holder shall remain unaffected until the total Retraction<br \/>\nPrice or the total Purchase Price, as the case may be, has been paid in the<br \/>\nmanner provided above. On and after the close of business on the Retraction<br \/>\nDate, provided that presentation and surrender of certificates and payment of<br \/>\nthe total Retraction Price or the total Purchase Price, as the case may be, has<br \/>\nbeen made in accordance with the foregoing provisions, the holder of the<br \/>\nRetracted Shares so redeemed by Exchangeco or purchased by Newco shall<br \/>\nthereafter be considered and deemed for all purposes to be a holder of Redback<br \/>\nCommon Shares delivered to it.<\/p>\n<p>6.6       Notwithstanding any other provision of this Article 6, Exchangeco<br \/>\nshall not be obligated to redeem Retracted Shares specified by a holder in a<br \/>\nRetraction Request to the extent that such redemption of Retracted Shares would<br \/>\nbe contrary to solvency requirements or other provisions of applicable law. If<br \/>\nExchangeco believes that on any Retraction Date it would not be permitted by any<br \/>\nof such requirements or other provisions to redeem the Retracted Shares tendered<br \/>\nfor redemption on such date, and provided that Newco shall not have exercised<br \/>\nthe Retraction Call Right with respect to the Retracted Shares, Exchangeco shall<br \/>\nonly be obligated to redeem Retracted Shares specified by a holder in a<br \/>\nRetraction Request to the extent of the maximum number that may be so redeemed<br \/>\n(rounded down to a whole number of shares) as would not be contrary to such<br \/>\nrequirements or other provisions and shall notify the holder at least two<br \/>\nBusiness Days prior to the Retraction Date as to the number of Retracted Shares<br \/>\nwhich will not be redeemed by Exchangeco. In any case in which the redemption by<br \/>\nExchangeco of Retracted Shares would be contrary to solvency requirements or<br \/>\nother provisions of applicable law, Exchangeco will redeem the maximum number of<br \/>\nExchangeable Shares which the Board of Directors determines Exchangeco is, on<br \/>\nthe Redemption Date, permitted to redeem on a PRO RATA basis (disregarding<br \/>\nfractions) in proportion to the total number of Exchangeable Shares tendered for<br \/>\nretraction by each holder, and Exchangeco shall issue to each holder of<br \/>\nRetracted Shares a new certificate, at the expense of Exchangeco, representing<br \/>\nthe Retracted Shares not redeemed by Exchangeco pursuant to section 6.2 hereof.<br \/>\nProvided that the Retraction Request is not revoked by the holder in the manner<br \/>\nspecified in section 6.7 and provided further that Newco has <\/p>\n<p>                                       16<\/p>\n<p>not exercised the Retraction Call Right with respect to the Retracted Shares,<br \/>\nthe holder of any such Retracted Shares not redeemed by Exchangeco pursuant to<br \/>\nsection 6.2 of these share provisions as a result of solvency requirements or<br \/>\nother provisions of applicable law shall be deemed by giving the Retraction<br \/>\nRequest to require Redback to purchase such Retracted Shares from such holder on<br \/>\nthe Retraction Date or as soon as practicable thereafter on payment by Redback<br \/>\nto such holder of the Purchase Price for each such Retracted Share, all as more<br \/>\nspecifically provided in the Exchange Trust Agreement.<\/p>\n<p>6.7       A holder of Retracted Shares may, by notice in writing given by the<br \/>\nholder to Exchangeco before the close of business on the Business Day<br \/>\nimmediately preceding the Retraction Date, withdraw its Retraction Request, in<br \/>\nwhich event such Retraction Request shall be null and void and, for greater<br \/>\ncertainty, the revocable offer constituted by the Retraction Request to sell the<br \/>\nRetracted Shares to Newco shall be deemed to have been revoked.<\/p>\n<p>                                    ARTICLE 7<br \/>\n                 REDEMPTION OF EXCHANGEABLE SHARES BY EXCHANGECO<\/p>\n<p>7.1       Subject to applicable law, and provided Newco has not exercised the<br \/>\nRedemption Call Right, Exchangeco shall on the Redemption Date redeem all but<br \/>\nnot less than all of the then outstanding Exchangeable Shares for an amount per<br \/>\nshare equal to the Current Market Price of a Redback Common Share on the last<br \/>\nBusiness Day prior to the Redemption Date (the &#8220;REDEMPTION PRICE&#8221;), which shall<br \/>\nbe satisfied in full by Exchangeco causing to be delivered to each holder of<br \/>\nExchangeable Shares one Redback Common Share for each Exchangeable Share held by<br \/>\nsuch holder, together with any Dividend Amount.<\/p>\n<p>7.2       In any case of a redemption of Exchangeable Shares under this Article<br \/>\n7, Exchangeco shall, at least 75 days before the Redemption Date (other than a<br \/>\nRedemption Date established in connection with a Redback Control Transaction, an<br \/>\nExchangeable Share Voting Event or an Exempt Exchangeable Share Voting Event),<br \/>\nsend or cause to be sent to each holder of Exchangeable Shares a notice in<br \/>\nwriting of the redemption by Exchangeco or the purchase by Newco under the<br \/>\nRedemption Call Right, as the case may be, of the Exchangeable Shares held by<br \/>\nsuch holder. In the case of a Redemption Date established in connection with a<br \/>\nRedback Control Transaction, an Exchangeable Share Voting Event and an Exempt<br \/>\nExchangeable Share Voting Event, the written notice of redemption by Exchangeco<br \/>\nor the purchase by Newco under the Redemption Call Right will be sent on or<br \/>\nbefore the Redemption Date, on as many days prior written notice as may be<br \/>\ndetermined by the Board of Directors to be reasonably practicable in the<\/p>\n<p>                                       17<\/p>\n<p>circumstances. In any such case, such notice shall set out the formula for<br \/>\ndetermining the Redemption Price or the Redemption Call Purchase Price, as the<br \/>\ncase may be, the Redemption Date and, if applicable, particulars of the<br \/>\nRedemption Call Right.<\/p>\n<p>7.3       On or after the Redemption Date and subject to the exercise by Newco<br \/>\nof the Redemption Call Right, Exchangeco shall cause to be delivered to the<br \/>\nholders of the Exchangeable Shares to be redeemed the Redemption Price for each<br \/>\nsuch Exchangeable Share, together with the Dividend Amount, upon presentation<br \/>\nand surrender at the registered office of Exchangeco or at the Transfer Agent&#8217;s<br \/>\nOffice of the certificates representing such Exchangeable Shares, together with<br \/>\nsuch other documents and instruments as may be required to effect a transfer of<br \/>\nExchangeable Shares under the Company Act and the articles of Exchangeco and<br \/>\nsuch additional documents and instruments as the Transfer Agent and Exchangeco<br \/>\nmay reasonably require. Payment of the total Redemption Price for such<br \/>\nExchangeable Shares, together with payment of such Dividend Amount, shall be<br \/>\nmade by delivery to each holder, at the address of the holder recorded in the<br \/>\nregister of members of Exchangeco or by holding for pick-up by the holder at the<br \/>\nregistered office of Exchangeco or at the Transfer Agent&#8217;s Office, on behalf of<br \/>\nExchangeco of certificates representing Redback Common Shares (which shares<br \/>\nshall be duly issued as fully paid and non-assessable and shall be free and<br \/>\nclear of any lien, claim or encumbrance) and, if applicable, a cheque of<br \/>\nExchangeco payable upon presentation at any branch of the bankers of Exchangeco<br \/>\nin payment of any such Dividend Amount, in each case, less any amounts withheld<br \/>\non account of tax required to be deducted and withheld therefrom (without<br \/>\ninterest). On and after the Redemption Date, the holders of the Exchangeable<br \/>\nShares called for redemption shall cease to be holders of such Exchangeable<br \/>\nShares and shall not be entitled to exercise any of the rights of holders in<br \/>\nrespect thereof, other than the right to receive their proportionate part of the<br \/>\ntotal Redemption Price and any such Dividend Amount, unless payment of the total<br \/>\nRedemption Price and any such Dividend Amount for such Exchangeable Shares shall<br \/>\nnot be made upon presentation and surrender of certificates in accordance with<br \/>\nthe foregoing provisions, in which case the rights of the holders shall remain<br \/>\nunaffected until the total Redemption Price and any such Dividend Amount have<br \/>\nbeen paid in the manner hereinbefore provided. Exchangeco shall have the right<br \/>\nat any time after the sending of notice of its intention to redeem the<br \/>\nExchangeable Shares as aforesaid to deposit or cause to be deposited the total<br \/>\nRedemption Price for and the full amount of such Dividend Amount on (except as<br \/>\nprovided in the preceding sentence) the Exchangeable Shares so called for<br \/>\nredemption, or of such of the said Exchangeable Shares represented by<br \/>\ncertificates that have not at the date of such deposit been surrendered by the<br \/>\nholders thereof in connection with such redemption, in a custodial account with<br \/>\nany chartered bank or trust company in Canada named in such notice, less <\/p>\n<p>                                       18<\/p>\n<p>any amounts withheld on account of tax required to be deducted and withheld<br \/>\ntherefrom. Upon the later of such deposit being made and the Redemption Date,<br \/>\nthe Exchangeable Shares in respect whereof such deposit shall have been made<br \/>\nshall be redeemed and the rights of the holders thereof after such deposit or<br \/>\nRedemption Date, as the case may be, shall be limited to receiving their<br \/>\nproportionate part of the total Redemption Price and such Dividend Amount for<br \/>\nsuch Exchangeable Shares so deposited, against presentation and surrender of the<br \/>\nsaid certificates held by them, respectively, in accordance with the foregoing<br \/>\nprovisions. Upon such payment or deposit of the total Redemption Price and the<br \/>\nfull amount of such Dividend Amount, the holders of the Exchangeable Shares<br \/>\nshall thereafter be considered and deemed for all purposes to be holders of<br \/>\nRedback Common Shares delivered to them.<\/p>\n<p>                                    ARTICLE 8<br \/>\n                            PURCHASE FOR CANCELLATION<\/p>\n<p>8.1       Subject to applicable law and notwithstanding section 8.2, Exchangeco<br \/>\nmay, at any time and from time to time, purchase for cancellation all or any<br \/>\npart of the Exchangeable Shares by private agreement with any holder of<br \/>\nExchangeable Shares for consideration consisting solely of Common Shares or<br \/>\nPreferred Shares.<\/p>\n<p>8.2       Subject to applicable law and the articles of Exchangeco, Exchangeco<br \/>\nmay at any time and from time to time purchase for cancellation all or any part<br \/>\nof the outstanding Exchangeable Shares at any price by tender to all the holders<br \/>\nof record of Exchangeable Shares then outstanding at any price per share. If in<br \/>\nresponse to an invitation for tenders under the provisions of this section 8.2,<br \/>\nmore Exchangeable Shares are tendered at a price or prices acceptable to<br \/>\nExchangeco than Exchangeco is prepared to purchase, the Exchangeable Shares to<br \/>\nbe purchased by Exchangeco shall be purchased as nearly as may be PRO RATA<br \/>\naccording to the number of shares tendered by each holder who submits a tender<br \/>\nto Exchangeco, provided that when shares are tendered at different prices, the<br \/>\npro rating shall be effected (disregarding fractions) only with respect to the<br \/>\nshares tendered at the price at which more shares were tendered than Exchangeco<br \/>\nis prepared to purchase after Exchangeco has purchased all the shares tendered<br \/>\nat lower prices. If part only of the Exchangeable Shares represented by any<br \/>\ncertificate shall be purchased, a new certificate for the balance of such shares<br \/>\nshall be issued at the expense of Exchangeco.<\/p>\n<p>                                       19<\/p>\n<p>                                    ARTICLE 9<br \/>\n                                  VOTING RIGHTS<\/p>\n<p>9.1       Except as required by applicable law and by Article 10, section 11.1<br \/>\nand section 12.2 hereof, the holders of the Exchangeable Shares shall not be<br \/>\nentitled as such to receive notice of or to attend any meeting of the members of<br \/>\nExchangeco or to vote at any such meeting.<\/p>\n<p>                                   ARTICLE 10<br \/>\n                             AMENDMENT AND APPROVAL<\/p>\n<p>10.1      The rights, privileges, restrictions and conditions attaching to the<br \/>\nExchangeable Shares may be added to, changed or removed but only with the<br \/>\napproval of the holders of the Exchangeable Shares given as hereinafter<br \/>\nspecified.<\/p>\n<p>10.2      Any approval given by the holders of the Exchangeable Shares to add<br \/>\nto, change or remove any right, privilege, restriction or condition attaching to<br \/>\nthe Exchangeable Shares or any other matter requiring the approval or consent of<br \/>\nthe holders of the Exchangeable Shares shall be deemed to have been sufficiently<br \/>\ngiven if it shall have been given in accordance with applicable law subject to a<br \/>\nminimum requirement that such approval be evidenced by resolution consented to<br \/>\nin writing by the holders of all of the Exchangeable Shares issued and<br \/>\noutstanding or by resolution passed by not less than three-quarters of the votes<br \/>\ncast on such resolution at a meeting of holders of Exchangeable Shares duly<br \/>\ncalled and held at which the holders of at least one-third of the outstanding<br \/>\nExchangeable Shares at that time are present or represented by proxy; provided<br \/>\nthat if at any such meeting the holders of at least one-third of the outstanding<br \/>\nExchangeable Shares at that time are not present or represented by proxy within<br \/>\none-half hour after the time appointed for such meeting, then the meeting shall<br \/>\nbe adjourned to such date not less than 10 days thereafter and to such time and<br \/>\nplace as may be designated by the Chairman of such meeting. At such adjourned<br \/>\nmeeting the holders of Exchangeable Shares present or represented by proxy<br \/>\nthereat may transact the business for which the meeting was originally called,<br \/>\nnotwithstanding that the holders of less than one-third of the outstanding<br \/>\nExchangeable Shares at that time are present or represented by proxy, and a<br \/>\nresolution passed thereat by the affirmative vote of not less than<br \/>\nthree-quarters of the votes cast on such resolution at such meeting shall<br \/>\nconstitute the approval or consent of the holders of the Exchangeable Shares.<\/p>\n<p>                                       20<\/p>\n<p>                                   ARTICLE 11<br \/>\n          RECIPROCAL CHANGES, ETC. IN RESPECT OF REDBACK COMMON SHARES<\/p>\n<p>11.1      Each holder of an Exchangeable Share acknowledges that the Support<br \/>\nAgreement provides, in part, that Redback will not without the prior approval of<br \/>\nExchangeco and the prior approval of the holders of the Exchangeable Shares<br \/>\ngiven in accordance with section 10.2 of these share provisions:<\/p>\n<p>     (a)  issue or distribute Redback Common Shares (or securities exchangeable<br \/>\n          for or convertible into or carrying rights to acquire Redback Common<br \/>\n          Shares) to the holders of all or substantially all of the then<br \/>\n          outstanding Redback Common Shares by way of stock dividend or other<br \/>\n          distribution, other than an issue of Redback Common Shares (or<br \/>\n          securities exchangeable for or convertible into or carrying rights to<br \/>\n          acquire Redback Common Shares) to holders of Redback Common Shares who<br \/>\n          exercise an option to receive dividends in Redback Common Shares (or<br \/>\n          securities exchangeable for or convertible into or carrying rights to<br \/>\n          acquire Redback Common Shares) in lieu of receiving cash dividends;<\/p>\n<p>     (b)  issue or distribute rights, options or warrants to the holders of all<br \/>\n          or substantially all of the then outstanding Redback Common Shares<br \/>\n          entitling them to subscribe for or to purchase Redback Common Shares<br \/>\n          (or securities exchangeable for or convertible into or carrying rights<br \/>\n          to acquire Redback Common Shares); or<\/p>\n<p>     (c)  issue or distribute to the holders of all or substantially all of the<br \/>\n          then outstanding Redback Common Shares:<\/p>\n<p>          (i)  shares or securities of Redback of any class other than Redback<br \/>\n               Common Shares (other than shares convertible into or exchangeable<br \/>\n               for or carrying rights to acquire Redback Common Shares);<\/p>\n<p>          (ii) rights, options or warrants other than those referred to in<br \/>\n               section 11.1(b) above;<\/p>\n<p>          (iii) evidences of indebtedness of Redback; or<\/p>\n<p>          (iv) assets of Redback;<\/p>\n<p>          unless the economic equivalent (determined by the Board of Directors<br \/>\n          in accordance with section 3.5 hereof) on a per share basis of such<br \/>\n          rights, options,<\/p>\n<p>                                       21<\/p>\n<p>          securities, shares, evidences of indebtedness or other assets is<br \/>\n          issued or distributed simultaneously to holders of the Exchangeable<br \/>\n          Shares; provided that, for greater certainty the above restrictions<br \/>\n          shall not apply to any securities issued or distributed by Redback in<br \/>\n          order to give effect to and consummate the transactions contemplated<br \/>\n          by, and in accordance with, the Arrangement Agreement.<\/p>\n<p>11.2      Each holder of an Exchangeable Share acknowledges that the Support<br \/>\nAgreement further provides, in part, that Redback will not without the prior<br \/>\napproval of Exchangeco and the prior approval of the holders of the Exchangeable<br \/>\nShares given in accordance with section 10.2 of these share provisions:<\/p>\n<p>     (a)  subdivide, redivide or change the then outstanding Redback Common<br \/>\n          Shares into a greater number of Redback Common Shares;<\/p>\n<p>     (b)  reduce, combine, consolidate or change the then outstanding Redback<br \/>\n          Common Shares into a lesser number of Redback Common Shares; or<\/p>\n<p>     (c)  reclassify or otherwise change Redback Common Shares or effect an<br \/>\n          amalgamation, merger, reorganization or other transaction affecting<br \/>\n          Redback Common Shares,<\/p>\n<p>unless the same or an economically equivalent (determined by the Board of<br \/>\nDirectors in accordance with section 3.5 hereof) change shall simultaneously be<br \/>\nmade to the rights attached to the Exchangeable Shares. The Support Agreement<br \/>\nfurther provides, in part, that the aforesaid provisions of the Support<br \/>\nAgreement shall not be changed without the approval of the holders of the<br \/>\nExchangeable Shares given in accordance with section 10.2 of these share<br \/>\nprovisions.<\/p>\n<p>                                   ARTICLE 12<br \/>\n                  ACTIONS BY EXCHANGECO UNDER SUPPORT AGREEMENT<\/p>\n<p>12.1      Exchangeco will take all such actions and do all such things as shall<br \/>\nbe necessary or advisable to perform and comply with and to ensure performance<br \/>\nand compliance by Redback, Newco and Exchangeco with all provisions of the<br \/>\nSupport Agreement and the Exchange Trust Agreement applicable to Redback, Newco<br \/>\nand Exchangeco, respectively, in accordance with the terms thereof including,<br \/>\nwithout limitation, taking all such actions and doing all such things as shall<br \/>\nbe necessary or advisable to enforce to the fullest extent possible for the<\/p>\n<p>                                       22<\/p>\n<p>direct benefit of Exchangeco all rights and benefits in favour of Exchangeco<br \/>\nunder or pursuant to such agreement.<\/p>\n<p>12.2      Exchangeco shall not propose, agree to or otherwise give effect to<br \/>\nany amendment to, or waiver or forgiveness of its rights or obligations under,<br \/>\nthe Support Agreement or the Exchange Trust Agreement without the approval of<br \/>\nthe holders of the Exchangeable Shares given in accordance with section 10.2 of<br \/>\nthese share provisions other than such amendments, waivers and\/or forgiveness as<br \/>\nmay be necessary or advisable for the purposes of:<\/p>\n<p>     (a)  adding to the covenants of any or all of the other parties to such<br \/>\n          agreement provided that the Board of Directors is of the good faith<br \/>\n          opinion, after consultation with counsel, that any such additions will<br \/>\n          not be prejudicial to the interests of the holders of the Exchangeable<br \/>\n          Shares;<\/p>\n<p>     (b)  making such amendments or modifications not inconsistent with such<br \/>\n          agreement as may be necessary or desirable with respect to matters or<br \/>\n          questions arising thereunder which, in the good faith opinion of the<br \/>\n          Board of Directors, it may be expedient to make, provided that the<br \/>\n          Board of Directors is of the good faith opinion, after consultation<br \/>\n          with counsel, that such amendments and modifications will not be<br \/>\n          prejudicial to the interests of the holders of the Exchangeable<br \/>\n          Shares; or<\/p>\n<p>     (c)  making such changes in or corrections to such agreement which, on the<br \/>\n          advice of counsel to Exchangeco, are required for the purpose of<br \/>\n          curing or correcting any ambiguity or defect or inconsistent provision<br \/>\n          or clerical omission or mistake or manifest error contained therein,<br \/>\n          provided that the Board of Directors is of the good faith opinion,<br \/>\n          after consultation with counsel, that such changes or corrections will<br \/>\n          not be prejudicial to the interests of the holders of the Exchangeable<br \/>\n          Shares.<\/p>\n<p>                                   ARTICLE 13<br \/>\n                               LEGEND; CALL RIGHTS<\/p>\n<p>13.1      The certificates evidencing the Exchangeable Shares shall contain or<br \/>\nhave affixed thereto a legend in form and on terms approved by the Board of<br \/>\nDirectors, with respect to the Support Agreement, the provisions of the Plan of<br \/>\nArrangement relating to the Retraction Call Right, the Liquidation Call Right,<br \/>\nthe Redemption Call Right and the Exchange Trust Agreement <\/p>\n<p>                                       23<\/p>\n<p>(including the provisions with respect to the exchange right and automatic<br \/>\nexchange rights thereunder).<\/p>\n<p>13.2      Each holder of an Exchangeable Share, whether of record or beneficial,<br \/>\nby virtue of becoming and being such a holder shall be deemed to acknowledge<br \/>\neach of the Liquidation Call Right, the Retraction Call Right and the Redemption<br \/>\nCall Right, in each case, in favour of Newco, and the overriding nature thereof<br \/>\nin connection with the liquidation, dissolution or winding-up of Exchangeco or<br \/>\nthe retraction or redemption of Exchangeable Shares, as the case may be, and to<br \/>\nbe bound thereby in favour of Newco as therein provided.<\/p>\n<p>13.3      Each of Exchangeco, Newco, Redback and the Transfer Agent shall be<br \/>\nentitled to deduct and withhold from any dividend or consideration otherwise<br \/>\npayable to any holder of Exchangeable Shares such amounts as Exchangeco, Newco,<br \/>\nRedback or the Transfer Agent is required to deduct and withhold with respect to<br \/>\nsuch payment under the INCOME TAX ACT (Canada), the United States INTERNAL<br \/>\nREVENUE CODE OF 1986 or any provision of provincial, state, local or foreign tax<br \/>\nlaw, in each case, as amended. To the extent that amounts are so withheld, such<br \/>\nwithheld amounts shall be treated for all purposes hereof as having been paid to<br \/>\nthe holder of the Exchangeable Shares in respect of which such deduction and<br \/>\nwithholding was made, provided that such withheld amounts are actually remitted<br \/>\nto the appropriate taxing authority. To the extent that the amount so required<br \/>\nto be deducted or withheld from any payment to a holder exceeds the cash portion<br \/>\nof the consideration otherwise payable to the holder, Exchangeco, Newco, Redback<br \/>\nand the Transfer Agent are hereby authorized to sell or otherwise dispose of<br \/>\nsuch portion of the consideration as is necessary to provide sufficient funds to<br \/>\nExchangeco, Newco, Redback or the Transfer Agent, as the case may be, to enable<br \/>\nit to comply with such deduction or withholding requirement and Exchangeco,<br \/>\nNewco, Redback or the Transfer Agent shall notify the holder thereof and remit<br \/>\nany unapplied balance of the net proceeds of such sale.<\/p>\n<p>                                   ARTICLE 14<br \/>\n                                     NOTICES<\/p>\n<p>14.1      Any notice, request or other communication to be given to Exchangeco<br \/>\nby a holder of Exchangeable Shares shall be in writing and shall be valid and<br \/>\neffective if given by mail (postage prepaid) or by telecopy or by delivery to<br \/>\nthe registered office of Exchangeco and addressed to the attention of the<br \/>\nPresident. Any such notice, request or other communication, if <\/p>\n<p>                                       24<\/p>\n<p>given by mail, telecopy or delivery, shall only be deemed to have been given and<br \/>\nreceived upon actual receipt thereof by Exchangeco.<\/p>\n<p>14.2      Any presentation and surrender by a holder of Exchangeable Shares to<br \/>\nExchangeco or the Transfer Agent of certificates representing Exchangeable<br \/>\nShares in connection with the liquidation, dissolution or winding-up of<br \/>\nExchangeco or the retraction or redemption of Exchangeable Shares shall be made<br \/>\nby registered mail (postage prepaid) or by delivery to the registered office of<br \/>\nExchangeco or to the Transfer Agent&#8217;s Office, in each case, addressed to the<br \/>\nattention of the President of Exchangeco. Any such presentation and surrender of<br \/>\ncertificates shall only be deemed to have been made and to be effective upon<br \/>\nactual receipt thereof by Exchangeco or the Transfer Agent, as the case may be.<br \/>\nAny such presentation and surrender of certificates made by registered mail<br \/>\nshall be at the sole risk of the holder mailing the same.<\/p>\n<p>14.3      Any notice, request or other communication to be given to a holder of<br \/>\nExchangeable Shares by or on behalf of Exchangeco shall be in writing and shall<br \/>\nbe valid and effective if given by mail (postage prepaid) or by delivery to the<br \/>\naddress of the holder recorded in the register of members of Exchangeco or, in<br \/>\nthe event of the address of any such holder not being so recorded, then at the<br \/>\nlast known address of such holder. Any such notice, request or other<br \/>\ncommunication, if given by mail, shall be deemed to have been given and received<br \/>\non the fifth Business Day following the date of mailing and, if given by<br \/>\ndelivery, shall be deemed to have been given and received on the date of<br \/>\ndelivery. Accidental failure or omission to give any notice, request or other<br \/>\ncommunication to one or more holders of Exchangeable Shares shall not invalidate<br \/>\nor otherwise alter or affect any action or proceeding to be taken by Exchangeco<br \/>\npursuant thereto.<\/p>\n<p>                                       25<\/p>\n<p>                                   SCHEDULE A<\/p>\n<p>                              NOTICE OF RETRACTION<\/p>\n<p>TO:      610381 B.C. Inc. (&#8220;Exchangeco&#8221;) and 610380 B.C. Inc. (&#8220;Newco&#8221;)<\/p>\n<p>         This notice is given pursuant to Article 6 of the provisions (the<br \/>\n&#8220;Share Provisions&#8221;) attaching to the Exchangeable Shares of Exchangeco<br \/>\nrepresented by this certificate and all capitalized words and expressions used<br \/>\nin this notice that are defined in the Share Provisions have the meanings<br \/>\nascribed to such words and expressions in such Share Provisions.<\/p>\n<p>         The undersigned hereby notifies Exchangeco that, subject to the<br \/>\nRetraction Call Right referred to below, the undersigned desires to have<br \/>\nExchangeco redeem in accordance with Article 6 of the Share Provisions:<\/p>\n<p>          \/ \/ all share(s) represented by this certificate; or<\/p>\n<p>          \/ \/     share(s) only.<br \/>\n              &#8212;<\/p>\n<p>         The undersigned hereby notifies Exchangeco that the Retraction Date<br \/>\nshall be<br \/>\n         &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;.<\/p>\n<p>         NOTE: The Retraction Date must be a Business Day and must not be less<br \/>\nthan 10 Business Days nor more than 15 Business Days after the date upon which<br \/>\nthis notice is received by Exchangeco. If no such Business Day is specified<br \/>\nabove, the Retraction Date shall be deemed to be the 15th Business Day after the<br \/>\ndate on which this notice is received by Exchangeco.<\/p>\n<p>         The undersigned acknowledges the overriding Retraction Call Right of<br \/>\nNewco to purchase all but not less than all the Retracted Shares directly from<br \/>\nthe undersigned and that this notice is and shall be deemed to be a revocable<br \/>\noffer by the undersigned to sell the Retraced Shares to Newco in accordance with<br \/>\nthe Retraction Call Right on the Retraction Date for the Purchase Price and on<br \/>\nthe other terms and conditions set out in section 6.3 of the Share Provisions.<br \/>\nThis notice of retraction, and this offer to sell the Retracted Shares to Newco,<br \/>\nmay be revoked and withdrawn by the undersigned only by notice in writing given<br \/>\nto Exchangeco at any time before the close of business on the Business Day<br \/>\nimmediately preceding the Retraction Date.<\/p>\n<p>         The undersigned acknowledges that if Exchangeco believes that, as a<br \/>\nresult of solvency requirements or other provisions of applicable law,<br \/>\nExchangeco would not be permitted to redeem all Retracted Shares, the<br \/>\nundersigned will be deemed to have exercised the Exchange Right (as defined in<br \/>\nthe Exchange Trust Agreement) so as to require Redback to purchase the<br \/>\nunredeemed Retracted Shares.<\/p>\n<p>         The undersigned hereby represents and warrants to Newco and Exchangeco<br \/>\nthat the undersigned:<\/p>\n<p>          \/ \/ is<\/p>\n<p>          \/ \/ is not<\/p>\n<p>         (select one)<\/p>\n<p>a non-resident of Canada for purposes of the INCOME TAX ACT (Canada). THE<br \/>\nUNDERSIGNED ACKNOWLEDGES THAT IN THE ABSENCE OF AN INDICATION THAT THE<br \/>\nUNDERSIGNED IS NOT A NON-RESIDENT OF CANADA, WITHHOLDING ON ACCOUNT OF CANADIAN<br \/>\nTAX MAY BE MADE FROM AMOUNTS PAYABLE TO THE UNDERSIGNED ON THE REDEMPTION OR<br \/>\nPURCHASE OF THE RETRACTED SHARES.<\/p>\n<p>         The undersigned hereby represents and warrants to Newco and Exchangeco<br \/>\nthat the undersigned has good title to, and owns, the share(s) represented by<br \/>\nthis certificate to be acquired by Newco or Exchangeco, as the case may be, free<br \/>\nand clear of all liens, claims and encumbrances.<\/p>\n<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br \/>\n(Date)<\/p>\n<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br \/>\n(Signature of Shareholder)<\/p>\n<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br \/>\n(Guarantee of Signature)<\/p>\n<p>\/ \/ Please check box if the securities and any cheque(s) resulting from the<br \/>\nretraction or purchase of the Retracted Shares are to be held for pick-up by the<br \/>\nshareholder from the Transfer Agent, <\/p>\n<p>                                       2<\/p>\n<p>failing which the securities and any cheque(s) will be mailed to the last<br \/>\naddress of the shareholder as it appears on the register.<\/p>\n<p>NOTE: This panel must be completed and this certificate, together with such<br \/>\nadditional documents as the Transfer Agent may require, must be deposited with<br \/>\nthe Transfer Agent. The securities and any cheque(s) resulting from the<br \/>\nretraction or purchase of the Retracted Shares will be issued and registered in,<br \/>\nand made payable to, the shareholder in the name which appears on the register<br \/>\nof members of Exchangeco and the securities and any cheque(s) resulting from<br \/>\nsuch retraction or purchase will be delivered to such shareholder as indicated<br \/>\nabove, unless the form appearing immediately below is duly completed.<\/p>\n<p>Date:<br \/>\n         &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<\/p>\n<p>Name of Person in Whose Name Securities or Cheque(s)<br \/>\nAre to be Registered, Issued or Delivered (please print):<br \/>\n                                                         &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<\/p>\n<p>Street Address or P.O. Box:<br \/>\n                             &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<\/p>\n<p>City, Province and Postal Code:<br \/>\n                                 &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<\/p>\n<p>Signature of Shareholder:<br \/>\n                           &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<\/p>\n<p>Signature Guaranteed by:<br \/>\n                          &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<\/p>\n<p>NOTE: If this notice of retraction is for less than all of the shares<br \/>\nrepresented by this certificate, a certificate representing the remaining<br \/>\nshare(s) of Exchangeco represented by this certificate will be issued and<br \/>\nregistered in the name of the shareholder as it appears on the register of<br \/>\nExchangeco, unless the Share Transfer Power on the share certificate is duly<br \/>\ncompleted in respect of such share(s).<\/p>\n<p>                                       3<\/p>\n<p>                                   APPENDIX 2<\/p>\n<p>                                ESCROW AGREEMENT<\/p>\n<p>         THIS AGREEMENT made as of the o day of o, 2000<\/p>\n<p>AMONG:<\/p>\n<p>         610381 B.C. INC., a company existing under the laws of the<br \/>\n         Province of British Columbia<\/p>\n<p>         (hereinafter referred to as &#8220;EXCHANGECO&#8221;)<\/p>\n<p>AND:<\/p>\n<p>         REDBACK NETWORKS INC., a corporation existing under the<br \/>\n         laws of the State of Delaware,<\/p>\n<p>         (hereinafter referred to as &#8220;REDBACK&#8221;)<\/p>\n<p>AND:<\/p>\n<p>         MONTREAL TRUST COMPANY OF CANADA, a trust company existing<br \/>\n         under the federal laws of Canada,<\/p>\n<p>         (hereinafter referred to as the &#8220;ESCROW AGENT&#8221;)<\/p>\n<p>AND:<\/p>\n<p>         ANDREW  WAITMAN, AS AGENT FOR AND ON BEHALF OF THE<br \/>\n         SHAREHOLDERS (AS DEFINED HEREIN)<\/p>\n<p>         (hereinafter referred to as the &#8220;SHAREHOLDERS&#8217; AGENT&#8221;)<\/p>\n<p>WHEREAS:<\/p>\n<p>A.       Pursuant to an arrangement agreement (the &#8220;ARRANGEMENT AGREEMENT&#8221;)<br \/>\ndated as of July 30, 2000 among Redback, Exchangeco and Abatis Systems<br \/>\nCorporation (&#8220;ABATIS&#8221;), Redback and Exchangeco are to issue certain securities<br \/>\nto holders of certain securities of Abatis pursuant to a plan of arrangement<br \/>\n(the &#8220;PLAN OF ARRANGEMENT&#8221;);<\/p>\n<p>B.       Pursuant to the Arrangement Agreement and the Plan of Arrangement, an<br \/>\nEscrow Fund (as defined herein), consisting of certain Escrow Securities (as<br \/>\ndefined in the Plan of Arrangement), is to be established to indemnify Redback,<br \/>\nExchangeco, 610380 B.C. Inc. and their respective officers, directors, employees<br \/>\nor agents (collectively, the &#8220;INDEMNIFIED PARTIES&#8221;) for any and all Losses (as<br \/>\ndefined herein); and<\/p>\n<p>C.       Pursuant to the Plan of Arrangement, each of the Persons entitled<br \/>\nthereunder to receive Escrow Securities (collectively, the &#8220;SHAREHOLDERS&#8221;) (i)<br \/>\nare deemed to have irrevocably appointed and authorized the Shareholders&#8217; Agent<br \/>\nas the agent of such Person, to enter into and act under this Agreement on his<br \/>\nbehalf, (ii) are deemed to have irrevocably authorized and directed Redback and<br \/>\nExchangeco, and their respective representatives and agents, to deposit, or<br \/>\ncause to be deposited, the Escrow Securities with the Escrow Agent at the<br \/>\nEffective Time under the Plan of Arrangement, (iii) are deemed to have<br \/>\nirrevocably authorized the Escrow Agent to hold and deal with such Person&#8217;s<br \/>\nEscrow Securities in accordance with the terms of this Agreement, and (iv) will<br \/>\nbe bound by the provisions of this Agreement in respect of all of such Person&#8217;s<br \/>\nEscrow Securities.<\/p>\n<p>         NOW THEREFORE in consideration of the respective covenants and<br \/>\nagreements in this Agreement and for other valuable consideration (the receipt<br \/>\nand sufficiency of which are hereby acknowledged), the parties hereby covenant<br \/>\nand agree as follows:<\/p>\n<p>1.0      DEFINITIONS AND INTERPRETATION<br \/>\n1.1      Each term denoted in this Agreement by initial capital letters and not<br \/>\notherwise defined herein shall have the meaning ascribed thereto in the Plan of<br \/>\nArrangement, unless the context otherwise requires.<\/p>\n<p>1.2      Where used herein, the term &#8220;LOSSES&#8221; means any and all losses,<br \/>\nliabilities, claims, damages (including incidental and consequential damages),<br \/>\npayments, fines, fees, taxes, penalties, deficiencies or expenses (including<br \/>\ncosts of investigation and defence and reasonable legal and accounting fees and<br \/>\nexpenses), whether or not involving a Third Party Claim (as defined herein),<br \/>\nincurred or suffered by any Indemnified Party relating to, arising, directly or<br \/>\nindirectly, from or in connection with:<\/p>\n<p>         (a)      any misrepresentation or breach of any representation,<br \/>\n                  warranty, obligation, covenant or agreement of Abatis<br \/>\n                  contained in the Arrangement Agreement or in <\/p>\n<p>                                       2<\/p>\n<p>                  any other certificate, instrument, agreement or document<br \/>\n                  delivered pursuant thereto; and<\/p>\n<p>         (b)      any matter which is disclosed in Schedule &#8220;A&#8221; attached hereto;<\/p>\n<p>after taking into account any income tax savings or recoveries or insurance<br \/>\nproceeds realized or received in respect thereof.<\/p>\n<p>1.3      The division of this Agreement into sections and other portions and<br \/>\nthe insertion of headings are for convenience of reference only and<br \/>\nshall not affect the construction or interpretation hereof. Unless otherwise<br \/>\nindicated, all references in this Agreement to a &#8220;section&#8221; followed by a number<br \/>\nand\/or a letter refer to the specified section of this Agreement. Unless<br \/>\notherwise indicated, the terms &#8220;this Agreement&#8221;, &#8220;hereof&#8221;, &#8220;herein&#8221;, &#8220;hereunder&#8221;<br \/>\nand &#8220;hereby&#8221; and similar expressions refer to this Agreement, as amended or<br \/>\nsupplemented from time to time pursuant to the applicable provisions hereof, and<br \/>\nnot to any particular section or other portion hereof.<\/p>\n<p>1.4      Unless the context otherwise requires, words importing the singular<br \/>\nshall include the plural and VICE VERSA and words importing any gender shall<br \/>\ninclude all genders.<\/p>\n<p>1.5      If any date on which any action is required to be taken hereunder is<br \/>\nnot aBusiness Day, such action shall be required to be taken on the next<br \/>\nsucceeding Business Day.<\/p>\n<p>2.0      ESCROW AND ESCROW SECURITIES<br \/>\n2.1      At or promptly after the Effective Time, Exchangeco and Redback will<br \/>\ndeposit, or cause to be deposited, on behalf of the respective Shareholders, the<br \/>\nEscrow Securities registered in the name of the Escrow Agent in escrow with the<br \/>\nEscrow Agent, such Escrow Securities, together with any other property (as<br \/>\ncontemplated in section 2.2) to be held by the Escrow Agent from time to time<br \/>\nhereunder, being referred to herein as the &#8220;ESCROW FUND&#8221;. The Escrow Fund shall<br \/>\nbe held by the Escrow Agent on behalf of the respective Shareholders and<br \/>\ndistributed or dealt with by the Escrow Agent in accordance with the terms and<br \/>\nconditions of this Agreement. For the purposes of this Agreement, the Escrow<br \/>\nSecurities deposited on behalf of and in respect of each Shareholder, and the<br \/>\ndistributions thereon and accretions thereto, shall be considered a separate<br \/>\npool within the Escrow Fund (each an &#8220;ESCROW POOL&#8221;), and recourse to the Escrow<br \/>\nFund in respect of Losses shall be PRO-RATA against each Escrow Pool in<br \/>\naccordance with the<\/p>\n<p>                                       3<\/p>\n<p>number of Escrow Securities set out opposite each Shareholder&#8217;s name in Exhibit<br \/>\nA hereto. In the event that the terms of this Agreement are inconsistent or<br \/>\nconflict in any way with the provisions of the Arrangement Agreement, this<br \/>\nAgreement shall be deemed to govern.<\/p>\n<p>2.2      If during the term of this Agreement, there is any subdivision,<br \/>\nconsolidation, reclassification, exchange, conversion or distribution (including<br \/>\ncash dividends), consolidation, amalgamation, merger, liquidation or wind-up<br \/>\ninvolving either Exchangeco or Redback, which results in any change in or to the<br \/>\nEscrow Securities or distribution of property in connection with the Escrow<br \/>\nSecurities, the Escrow Fund shall be deemed to include any such securities or<br \/>\nother property distributed in connection with the Escrow Securities and the<br \/>\nterms of this Agreement shall be deemed to be amended to the extent necessary to<br \/>\nrecognize such distributions and to give effect to the intent of this Agreement.<\/p>\n<p>3.0      RECOURSE TO THE ESCROW FUND<br \/>\n3.1      The Shareholders hereby jointly and severally agree to indemnify and<br \/>\nhold harmless the Indemnified Parties against, and the Escrow Fund shall be<br \/>\navailable to indemnify the Indemnified Parties for, any and all Losses incurred<br \/>\nor sustained, directly or indirectly, by any of them. The provisions of this<br \/>\nAgreement shall be the sole and exclusive remedy available to the Indemnified<br \/>\nParties to obtain recovery from the Shareholders with respect to any Losses,<br \/>\nexcept to the extent any Loss relates to, arises, directly or indirectly, from<br \/>\nor is connected to any fraudulent act or omission of any Shareholder in which<br \/>\ncase the Indemnified Parties shall have full recourse against such Shareholder<br \/>\nin respect of all remedies available at law or in equity.<\/p>\n<p>3.2      At any time prior to 5:00 p.m. (Pacific Time) on the date which is 180<br \/>\ndays from the Effective Date (the &#8220;EXPIRATION TIME&#8221;), Redback, on behalf of any<br \/>\nof the Indemnified Parties, may deliver to the Escrow Agent a certificate (a<br \/>\n&#8220;CLAIM NOTICE&#8221;):<\/p>\n<p>         (a)      stating that any of the Indemnified Parties has incurred a<br \/>\n                  Loss or Losses, or that Redback reasonably anticipates that an<br \/>\n                  Indemnified Party will incur a Loss or Losses on the basis of<br \/>\n                  facts or circumstances which exist prior to the Expiration<br \/>\n                  Time;<\/p>\n<p>         (b)      specifying in reasonable detail the individual items of<br \/>\n                  Losses, the amount of such Losses, the date on which each such<br \/>\n                  Loss was incurred or is reasonably anticipated to be incurred,<br \/>\n                  the misrepresentation or breach of Abatis that resulted in<br \/>\n                  such Loss and the basis for and facts giving rise to each such<br \/>\n                  Loss,<\/p>\n<p>                                       4<\/p>\n<p>and Redback shall concurrently deliver a duplicate copy of such Claim Notice to<br \/>\nthe Shareholders&#8217; Agent.<\/p>\n<p>         For a period of 20 Business Days after delivery of a Claim Notice (the<br \/>\n&#8220;DISPUTE PERIOD&#8221;), the Shareholders&#8217; Agent shall be entitled to deliver to the<br \/>\nEscrow Agent a notice disputing the matters set out in the Claim Notice (a<br \/>\n&#8220;DISPUTE NOTICE&#8221;). After the expiration of the Dispute Period, unless the<br \/>\nShareholders&#8217; Agent shall have delivered a Dispute Notice within the Dispute<br \/>\nPeriod, the Escrow Agent shall, subject to section 3.5, deliver to Redback or as<br \/>\nRedback may direct out of the Escrow Fund, as promptly as practicable, Escrow<br \/>\nSecurities (in the same ratio as the ratio of Redback Common Shares to<br \/>\nExchangeco Shares as of the date the Escrow Fund was first established) or other<br \/>\nproperty from each Escrow Pool comprising the Escrow Fund in accordance with the<br \/>\nratio set out in section 2.1 herein with an aggregate value of such Escrow<br \/>\nSecurities or other property (determined in accordance with section 13.1) equal<br \/>\nto the Losses specified in such Claim Notice. Where the basis for a claim upon<br \/>\nthe Escrow Fund by Redback is that an Indemnified Party reasonably anticipates<br \/>\nthat it will pay or accrue a Loss, no payment will be made from the Escrow Fund<br \/>\nfor such Loss unless and until such Loss is actually incurred.<\/p>\n<p>3.3     Upon receipt of a Dispute Notice within the Dispute Period, the Escrow<br \/>\nAgent shall deliver a copy of such Dispute Notice to Redback. The Escrow Agent<br \/>\nshall make no delivery of Escrow Securities or other property from each Escrow<br \/>\nPool comprising the Escrow Fund to Redback or as Redback may direct in respect<br \/>\nof any Losses which are the subject of a Dispute Notice received by the Escrow<br \/>\nAgent within the Dispute Period until the Escrow Agent shall have received<br \/>\neither (i) joint written instructions signed by each of Redback and the<br \/>\nShareholders&#8217; Agent, giving instructions to the Escrow Agent with respect to<br \/>\nresolution of a claim specified in a Claim Notice, which direction identifies<br \/>\nsuch claim and provides specific instructions to the Escrow Agent with respect<br \/>\nto the distribution of Escrow Securities or other property from each Escrow Pool<br \/>\ncomprising the Escrow Fund, in respect thereof or (ii) a certificate of either<br \/>\nRedback or the Shareholders&#8217; Agent certifying that a claim specified in a Claim<br \/>\nNotice has been resolved by a court of competent jurisdiction, for which a<br \/>\nfinal, non-appealable order has been issued entitling any of the Indemnified<br \/>\nParties or the Shareholders, as the case may be, to the release from the Escrow<br \/>\nFund of Escrow Securities, or other property comprising the Escrow Fund, as<br \/>\nspecified in such order (a &#8220;DISPUTE RESOLUTION NOTICE&#8221;).<\/p>\n<p>                                       5<\/p>\n<p>         Upon receipt of such Dispute Resolution Notice, the Escrow Agent shall<br \/>\ndeliver to Redback or as Redback may direct or to the Shareholders, as the case<br \/>\nmay be, out of the Escrow Fund, as promptly as practicable, Escrow Securities or<br \/>\nother property comprising the Escrow Fund in the amounts specified in such<br \/>\nDispute Resolution Notice.<\/p>\n<p>3.4      As promptly as practicable after the Expiration Time, Redback shall<br \/>\nprovide the Escrow Agent written instructions to release to each Shareholder any<br \/>\npart of his Escrow Pool which, in the opinion of Redback, acting reasonably, is<br \/>\nnot necessary to satisfy any claims in any Claim Notices outstanding as of the<br \/>\nExpiration Time, subject to any claims for indemnification made by the<br \/>\nShareholders&#8217; Agent pursuant to section 6.5. If no Claim Notices are outstanding<br \/>\nas of the Expiration Time, the Escrow Agent shall distribute the Escrow Fund<br \/>\npursuant to the written instructions of the Shareholders&#8217; Agent given pursuant<br \/>\nto section 12.1(a), which may include instructions to the Escrow Agent to<br \/>\ndistribute all or any part of the Escrow Fund to the Shareholders&#8217; Agent in<br \/>\nsatisfaction of any claim for indemnification he may have pursuant to section<br \/>\n6.5.<\/p>\n<p>3.5      The Indemnified Parties shall not be entitled to receive any Escrow<br \/>\nSecurities, or other property comprising the Escrow Fund, and shall not<br \/>\notherwise be entitled to any indemnification under this Agreement, unless and<br \/>\nuntil they have, as a group, incurred, or reasonably anticipate incurring, one<br \/>\nor more Losses in an aggregate amount of not less than US$250,000, in which case<br \/>\nthe Indemnified Parties shall be entitled to be indemnified out of the Escrow<br \/>\nFund in the manner provided in this Agreement for the full amount of any and all<br \/>\nLosses, including the initial Losses up to such US$250,000 threshold.<\/p>\n<p>3.6      Redback shall act as trustee on behalf of the Indemnified Parties and<br \/>\naccepts such trust and shall enforce the terms of this Agreement on behalf of<br \/>\nthe Indemnified Parties.<\/p>\n<p>4.0      THIRD-PARTY CLAIMS<br \/>\n4.1      In the event Redback becomes aware of a third party claim (a &#8220;THIRD<br \/>\nPARTY CLAIM&#8221;) prior to the Expiration Time which Redback reasonably expects may<br \/>\nresult in a Loss and a claim by an Indemnified Party against the Escrow Fund,<br \/>\nRedback shall deliver a Claim Notice specifying such anticipated Losses to the<br \/>\nEscrow Agent in the manner set out in section 3.0. Redback shall promptly and<br \/>\ndiligently defend any such Third Party Claim. The Shareholders&#8217; Agent, on behalf<br \/>\nof the Shareholders, shall have the right to participate in the negotiation,<br \/>\nsettlement or defence of any Third Party Claim and to retain counsel to act on<br \/>\nbehalf<\/p>\n<p>                                       6<\/p>\n<p>of the Shareholders, provided that the fees and disbursements of such counsel<br \/>\nwill be paid by the Shareholders without recourse to the Escrow Fund. Redback<br \/>\nshall have the right in its sole discretion to settle any Third Party Claim;<br \/>\nprovided, however, that if Redback settles any Third Party Claim without the<br \/>\nShareholders&#8217; Agent&#8217;s consent (which consent shall not be unreasonably withheld<br \/>\nor delayed), the Shareholders&#8217; Agent shall be entitled to file with the Escrow<br \/>\nAgent a Dispute Notice, in which case the Escrow Agent shall not release any<br \/>\nEscrow Securities, or other property comprising the Escrow Fund, from the Escrow<br \/>\nFund with respect to the amount of Losses incurred by the Indemnified Party in<br \/>\nsuch settlement until a Dispute Resolution Notice shall have been delivered to<br \/>\nthe Escrow Agent. In the event that the Shareholders&#8217; Agent has consented to any<br \/>\nsuch settlement in writing, the Shareholders&#8217; Agent shall have no power or<br \/>\nauthority to object under any provision of section 3.0 to the amount of any<br \/>\nclaim by the Indemnified Party against the Escrow Fund with respect to the<br \/>\namount of Losses incurred by the Indemnified Party in such settlement.<\/p>\n<p>5.0      PROTECTION OF ESCROW FUND;<br \/>\n         VOTING OF ESCROW SECURITIES<br \/>\n5.1      The Escrow Agent shall hold and safeguard the Escrow Fund from the<br \/>\nEffective Time until the termination of this Agreement pursuant to section 12.0,<br \/>\nshall treat such fund as an escrow fund in accordance with the terms of this<br \/>\nAgreement and not as the property of Redback and shall hold and dispose of the<br \/>\nEscrow Fund only in accordance with the terms hereof.<\/p>\n<p>5.2      The Escrow Agent, as the registered holder of the Escrow Securities<br \/>\nwill vote the Redback Common Shares held as a part of the Escrow Fund at any<br \/>\nmeeting of the holders of Redback Common Shares or of shareholders of Redback<br \/>\ngenerally, in accordance with the written directions of the Shareholders&#8217; Agent<br \/>\nand, in the absence of such directions, shall not be required to and shall not<br \/>\nvote the Redback Common Shares held as a part of the Escrow Fund.<\/p>\n<p>6.0      SHAREHOLDERS&#8217; AGENT<br \/>\n6.1      Pursuant to the Plan of Arrangement, the Shareholders&#8217; Agent has been<br \/>\nappointed as agent for the Shareholders to give and receive notices and<br \/>\ncommunications, to authorize delivery to Redback, or as Redback may direct, of<br \/>\nEscrow Securities, or other property comprising the Escrow Fund, from the Escrow<br \/>\nFund in satisfaction of claims by the Indemnified Parties, to object to such<br \/>\ndeliveries, to agree to, negotiate, enter into settlements and compromises of,<br \/>\nand comply with orders of courts with respect to such claims, and to take all<br \/>\nactions necessary or appropriate, in the judgment of the Shareholders&#8217; Agent,<br \/>\nfor the <\/p>\n<p>                                       7<\/p>\n<p>accomplishment of the foregoing. No bond shall be required of the Shareholders&#8217;<br \/>\nAgent, and the Shareholders&#8217; Agent shall not receive compensation for his<br \/>\nservices under this Agreement.<\/p>\n<p>6.2      A decision, act, consent or instruction of the Shareholders&#8217; Agent<br \/>\nshall constitute a decision of all the Shareholders and shall be final, binding<br \/>\nand conclusive upon each such Shareholder, and the Escrow Agent and Redback may<br \/>\nrely upon any such decision, act, consent or instruction of the Shareholders&#8217;<br \/>\nAgent as being the decision, act, consent or instruction of every Shareholder<br \/>\nand any notices or communications to or from the Shareholders&#8217; Agent shall<br \/>\nconstitute notice to or from each of the Shareholders. The Escrow Agent and<br \/>\nRedback are hereby relieved from any liability to any Person for any acts done<br \/>\nby them in accordance with any decision, act, consent or instruction of the<br \/>\nShareholders&#8217; Agent.<\/p>\n<p>6.3      The Shareholders may, from time to time upon not less than 20 days&#8217;<br \/>\nprior written notice to Redback, remove the Shareholders&#8217; Agent and appoint a<br \/>\nsuccessor shareholders&#8217; agent provided, however, that the Shareholders&#8217; Agent<br \/>\nmay not be removed unless holders of at least a two-thirds interest in the<br \/>\nEscrow Fund agree in writing to such removal and to the identity of the<br \/>\nsuccessor Shareholders&#8217; Agent. Any vacancy in the position of Shareholders&#8217;<br \/>\nAgent under this Agreement may be filled by written approval of the holders of a<br \/>\nsimple majority in interest of the Escrow Fund. In the event of an appointment<br \/>\nof a successor shareholders&#8217; agent, such appointment shall be confirmed to the<br \/>\nEscrow Agent forthwith.<\/p>\n<p>6.4      The Shareholders&#8217; Agent shall not be liable for any act done or omitted<br \/>\nhereunder as agent of the Shareholders while acting in good faith, or acting on<br \/>\nthe advice of counsel. The Shareholders&#8217; Agent shall have no duty, obligation or<br \/>\nresponsibility to expend his personal funds in support of his activities as<br \/>\nagent of the Shareholders.<\/p>\n<p>6.5      The Shareholders shall jointly and severally indemnify and hold<br \/>\nharmless the Shareholders&#8217; Agent against all claims, losses, damages, reasonable<br \/>\ncosts, penalties, fines and reasonable expenses (including reasonable expenses<br \/>\nof the Shareholders&#8217; Agent&#8217;s legal counsel) which, without fraud, negligence,<br \/>\nrecklessness, wilful misconduct or bad faith on the part of the Shareholder&#8217;s<br \/>\nAgent, may be paid, incurred or suffered by the Shareholders&#8217; Agent by reason or<br \/>\nas a result of the performance by the Shareholders&#8217; Agent of his obligations set<br \/>\nout in this Agreement or in the Registration Rights Agreement.<\/p>\n<p>                                       8<\/p>\n<p>7.0      CONCERNING THE ESCROW AGENT<br \/>\n7.1      The Escrow Agent shall be obligated only for the performance of the<br \/>\nDuties (as defined below), and any additional duties as set forth in any<br \/>\nadditional written escrow instructions which the Escrow Agent may receive after<br \/>\nthe date of this Agreement which are signed by an officer of Redback and the<br \/>\nShareholders&#8217; Agent and are acceptable to the Escrow Agent.<\/p>\n<p>7.2      The Escrow Agent will identify in its books that the Escrow Securities,<br \/>\nor other property comprising the Escrow Fund, held in escrow under this<br \/>\nAgreement from time to time and ensure that the Escrow Securities and such other<br \/>\nproperty are held separate and distinct from other securities or property held<br \/>\nby it. The Escrow Agent will keep complete and accurate records regarding the<br \/>\nEscrow Fund and will provide any party to this Agreement with full details of<br \/>\nthe management and status of the Escrow Fund within a reasonable time following<br \/>\nreceipt of a written request therefor.<\/p>\n<p>7.3      The &#8220;DUTIES&#8221; shall include:<\/p>\n<p>  (a)    holding and safeguarding the Escrow Fund and dealing with the Escrow<br \/>\n         Fund only in accordance with the terms of this Agreement;<\/p>\n<p>  (b)    investing any moneys forming, from time to time, a part of the Escrow<br \/>\n         Fund as provided in this Agreement; and<\/p>\n<p>  (c)    taking such other actions and doing such other things as are<br \/>\n         specifically provided in this Agreement.<\/p>\n<p>         In the exercise of its Duties, the Escrow Agent shall have (and is<br \/>\ngranted) such incidental and additional rights, powers, duties and authority not<br \/>\nin conflict with any of the provisions of this Agreement as the Escrow Agent,<br \/>\nacting in good faith and in the reasonable exercise of its discretion, may deem<br \/>\nnecessary, appropriate or desirable to effect the purpose of this Agreement. Any<br \/>\nexercise of such discretionary rights, powers, duties and authorities by the<br \/>\nEscrow Agent shall be final, conclusive and binding upon all Persons.<\/p>\n<p>7.4      The Escrow Agent represents to the parties hereto that at the date of<br \/>\nexecution and delivery of this Agreement there exists no material conflict of<br \/>\ninterest in the role of the Escrow Agent as fiduciary hereunder and the role of<br \/>\nthe Escrow Agent in any other capacity. The<\/p>\n<p>                                        9<\/p>\n<p>Escrow Agent shall, within 30 days after it becomes aware that such material<br \/>\nconflict of interest exists, either eliminate such material conflict of interest<br \/>\nor resign in the manner and with the effect specified in section 10.0. If,<br \/>\nnotwithstanding the foregoing provisions of this section 7.4, the Escrow Agent<br \/>\nhas such a material conflict of interest, the validity and enforceability of<br \/>\nthis Agreement shall not be affected in any manner whatsoever by reason only of<br \/>\nthe existence of such material conflict of interest. If the Escrow Agent<br \/>\ncontravenes the foregoing provisions of this section 7.4, any interested party<br \/>\nmay apply to the Supreme Court of British Columbia for an order that the Escrow<br \/>\nAgent be replaced as Escrow Agent hereunder.<\/p>\n<p>7.5      The Escrow Agent is hereby expressly authorized to accept any orders<br \/>\ngiven in compliance with this Agreement or orders, judgments or decrees of any<br \/>\ncourt of competent jurisdiction, and is hereby expressly authorized to comply<br \/>\nwith and obey such orders, judgments or decrees, and shall not be liable to the<br \/>\nShareholders&#8217; Agent or to any other Person by reason of such compliance,<br \/>\nnotwithstanding any such order, judgment or decree being subsequently reversed,<br \/>\nmodified, annulled, set aside, vacated or found to have been entered without<br \/>\njurisdiction.<\/p>\n<p>7.6      The Escrow Agent shall be held to the exercise of reasonable care in<br \/>\ncarrying out its obligations under this Agreement and in exercising its rights,<br \/>\npowers, Duties and authorities hereunder shall act honestly and in good faith<br \/>\nand will treat the Escrow Fund with the same degree of care as if the property<br \/>\ncomprising the Escrow Fund were its own. The Escrow Agent shall be without<br \/>\nliability to the parties hereto for any loss, damage, cost, expense (including<br \/>\nlegal fees on a solicitor and own client basis), liability or claim which does<br \/>\nnot arise from its fraud, bad faith, negligence, recklessness or wilful<br \/>\nmisconduct. The Escrow Agent shall not be liable for any error of judgment or<br \/>\nfor any act done or step taken or omitted by it in good faith or for any mistake<br \/>\nof fact or law (except for acts of fraud, bad faith, negligence, recklessness or<br \/>\nwilful misconduct).<\/p>\n<p>7.7      The Escrow Agent will not delegate or assign any of its Duties, but<br \/>\nmay:<\/p>\n<p>  (a)    in relation to these presents act and rely on the opinion or advice of<br \/>\n         or information obtained from any solicitor, attorney, auditor,<br \/>\n         accountant, appraiser, valuator, engineer or other expert, whether<br \/>\n         Escrow Agent or by Redback and\/or the Shareholders&#8217; Agent or otherwise,<br \/>\n         retained by the and may employ such assistants as may be necessary to<br \/>\n         the proper discharge of its powers and Duties and<\/p>\n<p>                                       10<\/p>\n<p>         determination of its rights hereunder and may pay proper and<br \/>\n         reasonable compensation for all such legal and other advice or<br \/>\n         assistance referred to above; and<\/p>\n<p>  (b)    retain or employ such agents, employees and other assistants as it may<br \/>\n         reasonably require for the proper determination and discharge of its<br \/>\n         powers and the Duties hereunder, and may pay reasonable remuneration<br \/>\n         for all services performed for it (and shall be entitled to receive<br \/>\n         reasonable remuneration for all services performed by it) in the<br \/>\n         discharge of the Duties hereof and compensation for all disbursements,<br \/>\n         costs and expenses made or incurred by it in the discharge of its<br \/>\n         duties hereunder and in the management of the Escrow Fund.<\/p>\n<p>7.8      The Escrow Fund will not be subject to any right, lien or claim of any<br \/>\nkind (&#8220;CLAIMS&#8221;) in favour of the Escrow Agent or in favour of any of its<br \/>\ncreditors. The Escrow Agent will notify each of Redback and the Shareholders&#8217;<br \/>\nAgent promptly in writing of any attempt by any person to assert any Claim<br \/>\nagainst any of the Escrow Fund and will not make any admission or concession in<br \/>\nrespect of such Claim except to the extent authorized by Redback and the<br \/>\nShareholders&#8217; Agent.<\/p>\n<p>7.9      Nothing contained in this Agreement shall constitute the Escrow Agent<br \/>\nas trustee for any party hereto or impose on the Escrow Agent any duties or<br \/>\nobligations other than those for which there is an express provision herein. No<br \/>\ncovenant or obligation shall be implied in this Agreement against the Escrow<br \/>\nAgent. Except as provided herein, the Escrow Agent shall have no responsibility<br \/>\nor liability for delivery of any Escrow Securities or other property in the<br \/>\nEscrow Fund.<\/p>\n<p>7.10     If it becomes illegal or impossible for the Escrow Agent to carry out<br \/>\nany of the provisions hereof, the Escrow Agent shall incur no liability as a<br \/>\nconsequence of the enforceability or lack thereof of this Agreement.<\/p>\n<p>7.11     The Escrow Agent shall not be liable to any party hereto in acting upon<br \/>\nany written notice, request, waiver, consent, receipt or other paper or document<br \/>\nreasonably believed by the Escrow Agent to be signed by the proper party or<br \/>\nparties. Absent its actual knowledge to the contrary, the Escrow Agent will be<br \/>\nentitled to treat as genuine and as the document it purports to be any letter,<br \/>\npaper, facsimile or other document furnished or caused to be furnished<\/p>\n<p>                                       11<\/p>\n<p>to the Escrow Agent by the proper party or parties, and reasonably believed by<br \/>\nthe Escrow Agent to be genuine and to have been transmitted by the proper party<br \/>\nor parties.<\/p>\n<p>7.12     In the event of any disagreement between any Person or Persons named in<br \/>\nthis Agreement and any other Person resulting in any adverse claims or demands<br \/>\nbeing made in connection with the Escrow Fund, the Escrow Agent shall be<br \/>\nentitled at its option to refuse to comply with any such claims or demands, so<br \/>\nlong as such disagreement shall continue, and in so doing the Escrow Agent shall<br \/>\nnot be or become liable for damages or interest to any Person named in this<br \/>\nAgreement, for its refusal to comply with such conflicting or adverse demands;<br \/>\nand the Escrow Agent shall be entitled to continue so to refrain and refuse so<br \/>\nto act until:<\/p>\n<p>  (a)    the rights of the adverse claimants have been finally adjudicated in a<br \/>\n         court of competent jurisdiction; or<\/p>\n<p>  (b)    all differences have been resolved by agreement of the parties<br \/>\n         involved.<\/p>\n<p>7.13     The Duties of the Escrow Agent under this Agreement may be altered,<br \/>\namended, modified or revoked only by written instrument signed by all of the<br \/>\nparties hereto.<\/p>\n<p>7.14     If the Escrow Agent reasonably requires other or further instruments in<br \/>\nconnection with performance of its Duties under this Agreement, the necessary<br \/>\nparties hereto shall join in furnishing such instruments.<\/p>\n<p>7.15     The Escrow Agent shall not be required to expend or risk its own funds<br \/>\nor otherwise incur financial liabilities in the performance of any of its Duties<br \/>\nhereunder, or in the exercise of any of its rights and powers hereunder.<\/p>\n<p>8.0      COMPENSATION<br \/>\n8.1      Redback and Exchangeco jointly and severally agree to pay the Escrow<br \/>\nAgent reasonable compensation for all of the services rendered by it under this<br \/>\nAgreement and will reimburse the Escrow Agent for all reasonable expenses<br \/>\n(including taxes other than taxes based on the net income of the Escrow Agent)<br \/>\nand disbursements, including the cost and expense of any suit or litigation of<br \/>\nany character and any proceedings before any governmental agency reasonably<br \/>\nincurred by the Escrow Agent in connection with its duties under this Agreement;<br \/>\nprovided that Redback and Exchangeco shall have no obligation to reimburse the<br \/>\nEscrow Agent<\/p>\n<p>                                       12<\/p>\n<p>for any expenses or disbursements paid, incurred or suffered by the Escrow Agent<br \/>\nin any suit or litigation in which the Escrow Agent is determined to have acted<br \/>\nfraudulently, in bad faith or with negligence, recklessness or wilful<br \/>\nmisconduct.<\/p>\n<p>9.0      INDEMNIFICATION AND LIMITATION OF LIABILITY<br \/>\n9.1      Redback shall indemnify and hold harmless the Escrow Agent and each of<br \/>\nits directors, officers, employees and agents appointed and acting in accordance<br \/>\nwith this Agreement (collectively, the &#8220;ESCROW AGENT INDEMNIFIED PARTIES&#8221;)<br \/>\nagainst all claims, losses, damages, reasonable costs, penalties, fines and<br \/>\nreasonable expenses (including reasonable expenses of the Escrow Agent&#8217;s legal<br \/>\ncounsel) which, without fraud, negligence, recklessness, wilful misconduct or<br \/>\nbad faith on the part of such Escrow Agent Indemnified Party, may be paid,<br \/>\nincurred or suffered by the Escrow Agent Indemnified Party by reason or as a<br \/>\nresult of the Escrow Agent&#8217;s acceptance or administration of the Escrow Fund,<br \/>\nits compliance with its duties set forth in this Agreement, or any written or<br \/>\noral instruction delivered to the Escrow Agent by Redback or the Shareholders&#8217;<br \/>\nAgent on behalf of the Shareholders pursuant hereto.<\/p>\n<p>         In no case shall Redback be liable under this indemnity for any claim<br \/>\nagainst any of the Escrow Agent Indemnified Parties unless Redback is notified<br \/>\nby the Escrow Agent of the written assertion of a claim or of any action<br \/>\ncommenced against the Escrow Agent Indemnified Parties promptly after any of the<br \/>\nEscrow Agent Indemnified Parties has received any such written assertion of a<br \/>\nclaim or shall have been served with a summons or other first legal process<br \/>\ngiving information as to the nature and basis of the claim. Subject to (ii)<br \/>\nbelow, Redback shall be entitled to participate at its own expense in the<br \/>\ndefence and, if Redback so elects at any time after receipt of such notice it<br \/>\nmay assume the defence of any suit brought to enforce any such claim. The Escrow<br \/>\nAgent shall have the right to employ separate counsel in any such suit and<br \/>\nparticipate in the defence thereof, but the fees and expenses of such counsel<br \/>\nshall be at the expense of the Escrow Agent unless: (i) the employment of such<br \/>\ncounsel has been authorized by Redback; or (ii) the named parties to any such<br \/>\nsuit include both the Escrow Agent and Redback and the Escrow Agent shall have<br \/>\nbeen advised by counsel acceptable to Redback that there may be one or more<br \/>\nlegal defences available to the Escrow Agent that are different from or in<br \/>\naddition to those available to Redback and that, in the judgment of such<br \/>\ncounsel, would present a conflict of interest were a joint representation to be<br \/>\nundertaken (in which case Redback shall not have the right to assume the defence<br \/>\nof such suit on behalf of the Escrow Agent but shall be liable to pay the<br \/>\nreasonable fees and expenses of counsel for the Escrow Agent). This indemnity<\/p>\n<p>                                       13<\/p>\n<p>shall survive the termination of this Agreement and the resignation or removal<br \/>\nof the Escrow Agent.<\/p>\n<p>9.2      LIMITATION OF LIABILITY. The Escrow Agent shall not be held liable for<br \/>\nany loss which may occur by reason of depreciation of the value of any part of<br \/>\nthe Escrow Fund or any loss incurred on any investment of funds pursuant to this<br \/>\nAgreement, except to the extent that such loss is attributable to fraud,<br \/>\nnegligence, recklessness, wilful misconduct or bad faith on the part of the<br \/>\nEscrow Agent.<\/p>\n<p>10.0     RESIGNATION AND REMOVAL OF THE ESCROW AGENT<br \/>\n10.1     The Escrow Agent may resign as Escrow Agent at any time with or without<br \/>\ncause by giving not less than 20 days prior written notice to Redback and the<br \/>\nShareholders&#8217; Agent, such resignation to be effective 20 days following the date<br \/>\nsuch notice is given; provided that no such resignation shall become effective<br \/>\nuntil the appointment of a successor escrow agent, to be appointed by Redback<br \/>\nand the Shareholders&#8217; Agent by mutual agreement and Redback and the<br \/>\nShareholders&#8217; Agent shall use their best efforts to mutually agree upon a<br \/>\nsuccessor agent within 20 days after receiving such notice. If the parties fail<br \/>\nto agree upon a successor escrow agent within such time, the Shareholders&#8217;<br \/>\nAgent, with the consent of Redback, which shall not be unreasonably withheld,<br \/>\nshall have the right to appoint a successor escrow agent. The successor escrow<br \/>\nagent selected in the such manner shall execute and deliver an instrument<br \/>\naccepting such appointment and it shall thereupon be deemed the Escrow Agent<br \/>\nhereunder and it shall without further acts be vested with all the estates,<br \/>\nproperties, rights, powers, and duties of the predecessor Escrow Agent as if<br \/>\noriginally named as the Escrow Agent. If no successor escrow agent is named, the<br \/>\nEscrow Agent may apply to a court of competent jurisdiction for the appointment<br \/>\nof a successor escrow agent. Thereafter, the predecessor Escrow Agent shall be<br \/>\ndischarged from any further duties and liabilities under this Agreement.<\/p>\n<p>11.0     ESCROW AGENT&#8217;S DEALING WITH TRANSFER AGENT<br \/>\n11.1     The Escrow Agent is not the transfer agent of the Escrow Securities.<br \/>\nRedback shall deliver to the Escrow Agent a certificate setting forth the name,<br \/>\naddress, telephone number and fax number of the transfer agents for each of<br \/>\nRedback and for Exchangeco and shall cause such transfer agent to cooperate with<br \/>\nthe Escrow Agent in the performance of its Duties under this Agreement. When<br \/>\nEscrow Securities are required to be delivered by the Escrow Agent, the Escrow<br \/>\nAgent shall be deemed to have completed such delivery when it has delivered<br \/>\ncertificates<\/p>\n<p>                                       14<\/p>\n<p>representing the applicable Escrow Securities to the transfer agent with<br \/>\ninstructions from the Shareholders&#8217; Agent as to how Escrow Securities should be<br \/>\ndistributed.<\/p>\n<p>12.0     TERMINATION<br \/>\n12.1     The escrow created by this Agreement shall continue until the earliest<br \/>\nto occur of the following events:<\/p>\n<p>  (a)    as promptly as practicable after the Expiration Time if there are no<br \/>\n         outstanding Claim Notices, in which case the Escrow Agent shall<br \/>\n         distribute the Escrow Fund in accordance with the written instructions<br \/>\n         of the Shareholders&#8217; Agent;<\/p>\n<p>  (b)    Redback and the Shareholders&#8217; Agent agree in writing to terminate such<br \/>\n         escrow, in which case the Escrow Agent shall distribute the Escrow Fund<br \/>\n         in accordance with the written instructions of Redback and the<br \/>\n         Shareholders&#8217; Agent; or<\/p>\n<p>  (c)    21 years after the death of the last survivor of the descendants of His<br \/>\n         Majesty King George VI of Canada and the United Kingdom of Great<br \/>\n         Britain and Northern Ireland living on the date of the creation of such<br \/>\n         escrow, in which case the Escrow Agent shall distribute the Escrow Fund<br \/>\n         in accordance with the written instructions of Redback.<\/p>\n<p>The Shareholders&#8217; Agent may, in the written instructions given pursuant to this<br \/>\nsection 12.1, set off against any part of the Escrow Fund to be distributed to<br \/>\nthe Shareholders any amounts that may be owed to him pursuant to the provisions<br \/>\nof section 6.5. The determination of the value of the Escrow Fund for the<br \/>\npurposes of this right of set off in favour of the Shareholders&#8217; Agent shall be<br \/>\nin accordance with the provisions of section 13.1.<\/p>\n<p>12.2     This Agreement shall terminate upon the distribution of all of the<br \/>\nproperty comprising the Escrow Fund; provided however that the provisions of<br \/>\nsections 8.0 and 9.0 shall survive any termination of this Agreement.<\/p>\n<p>13.0     GENERAL<br \/>\n13.1     For purposes of valuing the Escrow Fund from time to time,<\/p>\n<p>  (a)    a Redback Common Share or an Exchangeable Share shall have a value<br \/>\n         equal to US$148.96428; and<\/p>\n<p>                                       15<\/p>\n<p>  (b)    any other form of property (including securities other than Escrow<br \/>\n         Securities) which may, from time to time, form a part of the Escrow<br \/>\n         Fund shall have a value equal to the fair market value of such<br \/>\n         property, as determined, acting reasonably and in good faith by the<br \/>\n         board of directors of Redback.<\/p>\n<p>Any selection, opinion or determination by the board of directors of Redback<br \/>\npursuant to this section 13.1 will be conclusive and binding on all parties.<\/p>\n<p>13.2     If any term or other provisions of this Agreement is invalid, illegal<br \/>\nor incapable of being enforced by any rule or law, or public policy, all other<br \/>\nconditions and provisions of this Agreement will nevertheless remain in full<br \/>\nforce and effect so long as the economic or legal substance of the transactions<br \/>\ncontemplated by this Agreement is not affected in any manner materially adverse<br \/>\nto any party. Upon the determination that any term or other provision is<br \/>\ninvalid, illegal or incapable of being enforced, the parties to this Agreement<br \/>\nwill negotiate in good faith to modify this Agreement so as to effect the<br \/>\noriginal intent of the parties as closely as possible in an acceptable manner to<br \/>\nthe end that the transactions contemplated by this Agreement are fulfilled to<br \/>\nthe fullest extent possible.<\/p>\n<p>13.3     This Agreement shall be binding upon and enure to the benefit of the<br \/>\nparties hereto and their respective successors and permitted assigns.<\/p>\n<p>13.4     All notices and other communications between the parties to this<br \/>\nAgreement shall be in writing and shall be deemed to have been given if<br \/>\ndelivered personally or by confirmed telecopy to the parties at the following<br \/>\naddresses (or at such other address for any such party as shall be specified in<br \/>\nlike notice):<\/p>\n<p>  (a)    to Exchangeco or Redback:<\/p>\n<p>         Redback Networks Inc.<br \/>\n         1195 Borregas Avenue<br \/>\n         Sunnyvale, CA<br \/>\n         94089<br \/>\n         ATTENTION:        General Counsel<br \/>\n         &#8212;&#8212;&#8212;<br \/>\n         Facsimile:        (408) 571-5195<\/p>\n<p>                                       16<\/p>\n<p>         with a copy to:<\/p>\n<p>         Gunderson Dettmer LLP<br \/>\n         155 Constitution Drive<br \/>\n         Menlo Park, California  94025<br \/>\n         ATTENTION:        Gregory K. Miller<br \/>\n         &#8212;&#8212;&#8212;<br \/>\n         Facsimile:        (650) 321-2800<\/p>\n<p>         and to:<\/p>\n<p>         Fraser Milner Casgrain<br \/>\n         1500 &#8211; 1040 West Georgia Street<br \/>\n         Vancouver, British Columbia  V6E 4H8<br \/>\n         ATTENTION:        Gary R. Sollis<br \/>\n         &#8212;&#8212;&#8212;<br \/>\n         Facsimile:        (604) 683-5214<\/p>\n<p> (b)     to the Escrow Agent:<\/p>\n<p>         Montreal Trust Company of Canada<br \/>\n         Corporate Trust Department<br \/>\n         3rd Floor &#8211; 510 Burrard Street<br \/>\n         Vancouver, British Columbia  V6C 3B9<br \/>\n         ATTENTION:        Nicole Clement<br \/>\n         &#8212;&#8212;&#8212;<br \/>\n         Facsimile:        (604) 683-4079<\/p>\n<p> (c)     to the Shareholders&#8217; Agent:<\/p>\n<p>         Andrew Waitman<br \/>\n         c\/o Celtic House International Corporation<br \/>\n         555 Legget Drive, Suite 211<br \/>\n         Kanata, Ontario<br \/>\n         K2K 2X3<br \/>\n         ATTENTION:        General Counsel<br \/>\n         &#8212;&#8212;&#8212;<br \/>\n         Facsimile:        (613) 271-2025<\/p>\n<p>         with a copy to:<\/p>\n<p>         McCarthy Tetrault<br \/>\n         1300 &#8211; 777 Dunsmuir Street<br \/>\n         P.O. Box 10424<br \/>\n         Vancouver, British Columbia  V7Y 1K2<br \/>\n         ATTENTION:        Ted I. Koffman<br \/>\n         &#8212;&#8212;&#8212;<br \/>\n         Facsimile:        (604) 622-5707<\/p>\n<p>                                       17<\/p>\n<p>Any notice or other communication given personally shall be deemed to have been<br \/>\ngiven and received upon delivery thereof and if given by telecopy shall be<br \/>\ndeemed to have been given and received on the date of confirmed receipt thereof<br \/>\nunless such day is not a Business Day in which case it shall be deemed to have<br \/>\nbeen given and received upon the immediately following Business Day.<\/p>\n<p>13.5     This Agreement may be executed in counterparts, each of which shall be<br \/>\ndeemed an original, but all of which taken together shall constitute one and the<br \/>\nsame instrument.<\/p>\n<p>13.6     This Agreement shall be construed and enforced in accordance with the<br \/>\nlaws of the Province of British Columbia and the federal laws of Canada<br \/>\napplicable therein.<\/p>\n<p>13.7     The Escrow Agent may assign all of its duties hereunder to any<br \/>\ncorporation organized and existing under the federal laws of Canada and<br \/>\nauthorized to carry on the business of a trust company in each of the Provinces<br \/>\nof Canada which is affiliated with Computershare Investor Services Inc. Such<br \/>\nassignment shall be effective upon notice by the Escrow Agent to Redback and<br \/>\nExchangeco, without any further documentation or consent of the parties hereto.<\/p>\n<p>         IN WITNESS WHEREOF the parties hereto have caused this Agreement to be<br \/>\nduly executed as of the date first above written.<\/p>\n<p>                                        610381 B.C. INC.<\/p>\n<p>                                        Per:<br \/>\n                                               &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br \/>\n                                               Authorized Signatory<\/p>\n<p>                                        REDBACK NETWORK INC.<\/p>\n<p>                                        Per:<br \/>\n                                               &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br \/>\n                                               Authorized Signatory<\/p>\n<p>                                       18<\/p>\n<p>                                        MONTREAL TRUST COMPANY<br \/>\n                                        OF CANADA<\/p>\n<p>                                        Per:<br \/>\n                                               &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br \/>\n                                               Authorized Signatory<\/p>\n<p>                                              &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br \/>\n                                              ANDREW WAITMAN, AS AGENT<br \/>\n                                              FOR AND ON BEHALF OF THE<br \/>\n                                              SHAREHOLDERS<\/p>\n<p>                                       19<\/p>\n<p>                                  SCHEDULE &#8220;A&#8221;<\/p>\n<p>          ADDITIONAL MATTERS TO BE INCLUDED IN THE DEFINITION OF LOSSES<\/p>\n<p>All Schedule numbers referred to in this Schedule &#8220;A&#8221; refer to Schedules of the<br \/>\nAbatis Disclosure Schedule (as such term is defined in the Arrangement<br \/>\nAgreement).<\/p>\n<p>1.       All matters disclosed in item 2 of Schedule 3.1.4, item 4 of<br \/>\n         Schedule 3.1.5, item 5 of Schedule 3.1.8, item 8 of Schedule<br \/>\n         3.1.9(d), item 1 of Schedule 3.1.23, item 1 of Schedule<br \/>\n         3.1.28, item 3 of Schedule 3.1.36, item 2 of Schedule 3.1.48<br \/>\n         and item 1 of Schedule 5.3(b)(xviii).<\/p>\n<p>2.       All matters disclosed in item 2 of Schedule 3.1.2, item 4 of<br \/>\n         Schedule 3.1.4, item 1 of Schedule 3.1.5, item 5 of Schedule<br \/>\n         3.1.7, item 7 of Schedule 3.1.8, item 3 of Schedule 3.1.23,<br \/>\n         item 2 of Schedule 3.1.28, item 5 of 3.1.36 and item 3 of<br \/>\n         Schedule 5.3(b)(xviii).<\/p>\n<p>3.       All matters disclosed in item 4 of Schedule 3.1.4, item 2 of<br \/>\n         Schedule 3.1.5, item 5 of Schedule 3.1.7, item 7 of Schedule<br \/>\n         3.1.8, item 3 of Schedule 3.1.23, item 3 of Schedule 3.1.28,<br \/>\n         item 5 of 3.1.36 and item 3 of Schedule 5.3(b)(xviii).<\/p>\n<p>4.       All matters disclosed in item 1 of Schedule 3.1.2, item 7 of<br \/>\n         Schedule 3.1.9(d) and item 2 of Schedule 3.1.11.<\/p>\n<p>5.       All matters disclosed in item 1 of Schedule 3.1.48.<\/p>\n<p>                                       20<\/p>\n<p>                                   APPENDIX 3<\/p>\n<p>                         EXERCISE OF REPLACEMENT OPTIONS<\/p>\n<p>A.       OPTIONS WITH SPECIAL EXERCISE TERMS<\/p>\n<p>  o      Each Replacement Option issued in exchange for a Abatis Option<br \/>\n         containing exercise terms different from those set out in Section 7,<br \/>\n         12, 13 and 14 of the Abatis Key Employees Stock Option Plan, (before<br \/>\n         giving effect to the Plan of Arrangement) shall become exercisable<br \/>\n         at the times and subject to the vesting and exercise conditions<br \/>\n         specified in such Abatis Option for, at each time specified<br \/>\n         therein, the number of Redback Common Shares which is equal to the<br \/>\n         product (rounded to the nearest lower whole number) obtained when<br \/>\n         the number of Abatis Shares for which such Abatis Option would<br \/>\n         have, but for the Arrangement, been exercisable at such time is<br \/>\n         multiplied by the Exchange Ratio.<\/p>\n<p>B.       OTHER OPTIONS<\/p>\n<p>         Subject to paragraph C below, each Replacement Option other than the<br \/>\n         Replacement Options referred to above will become exercisable as<br \/>\n         follows:<\/p>\n<p>  o      With respect to the first 25% of the Redback Common Shares subject<br \/>\n         thereto, when the holder thereof has completed 12 months of continuous<br \/>\n         service with Abatis and\/or Redback from the later of the date of grant<br \/>\n         of the Abatis Option for which such Replacement Option is to be<br \/>\n         exchanged and the date of commencement of such service.<\/p>\n<p>  o      With respect to an additional 1\/48th of the Redback Common Shares<br \/>\n         subject thereto, when the holder thereof has completed each month of<br \/>\n         continuous service with Abatis and\/or Redback after the first<br \/>\n         anniversary of the later of date of grant of the Abatis Option for<br \/>\n         which such Replacement Option is to be exchanged and the date of<br \/>\n         commencement of such service.<\/p>\n<p>C.       CLARIFICATION WITH RESPECT TO FULLY OR PARTIALLY EXERCISABLE OPTIONS<\/p>\n<p>  o      For greater certainty, and in addition to paragraph A or B above, each<br \/>\n         Replacement Option issued in exchange for a Abatis Option which is<br \/>\n         fully or partially exercisable as at the Effective Date shall be<br \/>\n         immediately exercisable for the number of Redback Common Shares<br \/>\n         which is equal to the product (rounded to the nearest lower whole<br \/>\n         number) obtained when the number of Abatis Shares for <\/p>\n<p>         which such Abatis Option is exercisable as at the Effective Date is<br \/>\n         multiplied by the Exchange Ratio.<\/p>\n<p>D.       CONTINUED APPLICATION OF OTHER TERMS<\/p>\n<p>  o      For greater certainty, except as provided in the Plan of<br \/>\n         Arrangement (including this Appendix 3), all of the other terms and<br \/>\n         conditions of each Replacement Option shall be the same as the terms<br \/>\n         and conditions of the Abatis Option for which it is exchanged,<br \/>\n         including, without limitation, the terms contained in sections 12, 13<br \/>\n         and 14 of the Abatis Key Employees Stock Option Plan.<\/p>\n<p>                                       2<\/p>\n<p>                                    EXHIBIT F<\/p>\n<p>                     PRINCIPAL SHAREHOLDER VOTING AGREEMENT<\/p>\n<p>         THIS AGREEMENT made the 30th day of July, 2000<\/p>\n<p>BETWEEN:<\/p>\n<p>         REDBACK NETWORKS INC., a corporation  incorporated  under the laws of<br \/>\n         the State of Delaware<\/p>\n<p>         (&#8220;Parentco&#8221;)<\/p>\n<p>AND:<\/p>\n<p>         THE UNDERSIGNED SHAREHOLDER OF ABATIS SYSTEMS CORPORATION<\/p>\n<p>         (the &#8220;Holder&#8221;)<\/p>\n<p>AND:<\/p>\n<p>         610381 B.C. INC., a corporation  incorporated under the laws of the<br \/>\n         Province of British Columbia<\/p>\n<p>         (&#8220;Exchangeco&#8221;)<\/p>\n<p>         WHEREAS:<\/p>\n<p>A.       Concurrently herewith, Parentco, Abatis Systems Corporation (the<br \/>\n&#8220;Target&#8221;) and Exchangeco have entered into an Arrangement Agreement of even date<br \/>\nherewith (as such agreement may hereafter be amended or modified from time to<br \/>\ntime, the &#8220;Arrangement Agreement&#8221;), pursuant to which Parentco, Target and<br \/>\nExchangeco have agreed, subject to certain conditions, to enter into a Plan of<br \/>\nArrangement (as such plan may hereafter be amended or modified from time to<br \/>\ntime, the &#8220;Plan of Arrangement&#8221;), under which the shares of the Target (the<br \/>\n&#8220;Target Shares&#8221;) will be exchanged by the current holders thereof with<br \/>\nExchangeco, a newly incorporated wholly-owned subsidiary of Parentco, for<br \/>\nexchangeable shares of Exchangeco or shares of common stock of Parentco, at the<br \/>\nelection of such holders;<\/p>\n<p>B.       The Holder beneficially owns or holds the number of shares in the<br \/>\ncapital of Target, and options to acquire such shares, if any, set forth on the<br \/>\nsignature page of this Agreement;<\/p>\n<p>C.       The Holder is a party to a letter agreement (the &#8220;Alcatel Letter<br \/>\nAgreement&#8221;) between the Holder and other major shareholders of the Target, and<br \/>\nAlcatel Networks Corporation (&#8220;Alcatel&#8221;), pursuant to which the Holder and<br \/>\nCeltic House International Corporation (collectively &#8220;Celtic House&#8221;) agree to<br \/>\nmake a payment to Alcatel or Alcatel agrees to transfer shares in the Target to<br \/>\nCeltic House, as the case may be, upon the occurrence of certain events based on<br \/>\nthe price of common shares of Parentco;<\/p>\n<p>D.       The Holder is also a party to a letter agreement (the &#8220;Celtic House<br \/>\nLetter Agreement&#8221;) between the Holder and other major shareholders of the Target<br \/>\npursuant to which the Holder and such other shareholders agree to transfer<br \/>\nshares in the Target to each other in the event the obligations under the<br \/>\nAlcatel Letter Agreement are triggered;<\/p>\n<p>E.       Parentco has required, as an inducement and a condition to entering<br \/>\ninto the Arrangement Agreement, that the Holder concurrently therewith enter<br \/>\ninto this Agreement with respect to (i) all shares of any class of the Target<br \/>\nand all options to purchase shares of any class of the Target that are<br \/>\nbeneficially owned or held by the Holder and (ii) any and all other shares or<br \/>\nsecurities of the Target issued or issuable in respect thereof on or after the<br \/>\ndate hereof (collectively, the &#8220;Subject Securities&#8221;); and<\/p>\n<p>F.       This Agreement sets out the terms and conditions of the agreement of<br \/>\nthe Holder to support the Arrangement (as defined in the Arrangement Agreement)<br \/>\nand to vote the Subject Securities in favour of the Arrangement.<\/p>\n<p>         NOW THEREFORE, in consideration of the mutual covenants and agreements<br \/>\nset forth herein, the payment of the sum of Ten ($10.00) Dollars by Parentco to<br \/>\nthe Holder and other valuable consideration (the receipt and sufficiency of<br \/>\nwhich is hereby acknowledged), the parties hereto covenant and agree as follows:<\/p>\n<p>1.       VOTING OF EQUITY SECURITIES<\/p>\n<p>    (a)  The Holder hereby agrees that, during the period (the &#8220;Term&#8221;) from<br \/>\n         the date of this Agreement until the Expiration Date (as defined<br \/>\n         below), at any meeting of the <\/p>\n<p>                                       2<\/p>\n<p>         shareholders or optionholders of the Target, or of any class of<br \/>\n         shareholders of the Target, however called, and in any action by<br \/>\n         written consent of the shareholders or optionholders of the Target<br \/>\n         or of any class of shareholders of the Target, the Holder shall<br \/>\n         (or shall cause the holder of record to, if the Holder is the<br \/>\n         beneficial owner but not the holder of record of the Subject<br \/>\n         Securities), at the written direction of Parentco, (i) vote all of<br \/>\n         the Subject Securities in favor of the transactions contemplated<br \/>\n         by the Arrangement Agreement and Plan of Arrangement and any<br \/>\n         actions required in furtherance of the transactions contemplated<br \/>\n         thereby, (ii) vote all of the Subject Securities to oppose any<br \/>\n         action or agreement that would result in a breach of any<br \/>\n         representation, warranty, agreement, covenant or other obligation<br \/>\n         of the Target under the Arrangement Agreement or the Plan of<br \/>\n         Arrangement, and (iii) vote all of the Subject Securities to<br \/>\n         oppose any proposed action by the Target or any other party the<br \/>\n         result of which could be reasonably inferred to impede, interfere<br \/>\n         with, prevent or delay Parentco from completing the transactions<br \/>\n         contemplated by this Agreement, the Arrangement Agreement or the<br \/>\n         Plan of Arrangement, or to materially change the business,<br \/>\n         operations, capital or affairs of the Target, including, but not<br \/>\n         limited to: (A) any Opposing Proposal, as hereinafter defined,<br \/>\n         involving the Target or any of its subsidiaries; (B) any change in<br \/>\n         the management or board of directors of the Target, except (1) as<br \/>\n         otherwise agreed to in writing by Parentco, or (2) to appoint a<br \/>\n         nominee or nominees of a shareholder of the Target to the board of<br \/>\n         directors of the Target in accordance with the terms of the<br \/>\n         shareholders&#8217; agreement among Alcatel, the Holder, the Target,<br \/>\n         Adam Lorant, Paul Terry and Jim Arseneault made effective as of<br \/>\n         the 4th day of September, 1998, as amended effective as of<br \/>\n         November 23, 1999 and April 3, 2000 (the &#8220;Shareholders&#8217;<br \/>\n         Agreement&#8221;); (C) a sale, lease, transfer, exclusive licence,<br \/>\n         disposition or joint venture of or relating to any of the assets<br \/>\n         of the Target outside the ordinary course of business, or of any<br \/>\n         of the assets which are material to its business, whether or not<br \/>\n         in the ordinary course of business; (D) a reorganization,<br \/>\n         recapitalization, dissolution or liquidation of the Target; or (E)<br \/>\n         any change in the authorized capital of the Target or any<br \/>\n         amendment of the Target&#8217;s articles, by-laws or other constating<br \/>\n         documents, other than in connection with the Arrangement. The<br \/>\n         Holder further agrees that, during the Term, it shall not enter<br \/>\n         into any agreement or understanding with any person the effect of<br \/>\n         which would be inconsistent or contrary to the provisions and<br \/>\n         agreements contained herein.<\/p>\n<p>                                       3<\/p>\n<p>    (b)  The Holder will, concurrently with the execution of this<br \/>\n         Agreement, complete, execute and deliver to Parentco a proxy<br \/>\n         in the form attached hereto as Exhibit A with respect to the<br \/>\n         Subject Securities (the &#8220;Proxy&#8221;), which, subject to the terms<br \/>\n         of this Agreement and the Proxy, shall be irrevocable to the<br \/>\n         fullest extent permissible by law during the Term.<\/p>\n<p>    (c)  The Holder hereby irrevocably constitutes and appoints Parentco<br \/>\n         the true and lawful agent, attorney and attorney in fact of the<br \/>\n         Holder with respect to the Subject Securities, with full power of<br \/>\n         substitution (such power of attorney, being coupled with an<br \/>\n         interest, being irrevocable) to, at any time during the Term,<br \/>\n         execute and deliver such additional instruments of proxy,<br \/>\n         authorizations or consents, and to exercise such other similar<br \/>\n         rights of the Holder, in respect of the Subject Securities at any<br \/>\n         annual, special or adjourned meeting of the shareholders or<br \/>\n         optionholders of the Target, or of any class of shareholders of<br \/>\n         the Target, and in any written consent in lieu of any such<br \/>\n         meeting, as may in the opinion of Parentco, acting reasonably, be<br \/>\n         necessary or desirable to give effect to the terms and intent of<br \/>\n         this Agreement.<\/p>\n<p>    (d)  The Holder hereby revokes any and all other authorities,<br \/>\n         whether as agent, attorney-in-fact, attorney, proxy (other<br \/>\n         than the Proxy contemplated herein) or otherwise, previously<br \/>\n         conferred or agreed to be conferred by the Holder at any time<br \/>\n         with respect to the Subject Securities and the matters<br \/>\n         contemplated above. No subsequent authority, whether as agent,<br \/>\n         attorney-in-fact, attorney, proxy or otherwise, will be<br \/>\n         granted with respect to the Subject Securities, in connection<br \/>\n         with the matters contemplated above, by or on behalf of the<br \/>\n         Holder during the Term, other than as provided for under this<br \/>\n         Agreement.<\/p>\n<p>2.       TERM<\/p>\n<p>         This Agreement shall become effective on the date hereof and shall<br \/>\nterminate at such time (the &#8220;Expiration Date&#8221;) as is the earliest of: (i) the<br \/>\nEffective Time of the Plan of Arrangement (as such term is defined therein);<br \/>\n(ii) the time at which the Arrangement Agreement is terminated in accordance<br \/>\nwith its terms; (iii) December 31, 2000; or (iv) upon any amendment to or waiver<br \/>\nby the Target of any of the provisions of the Arrangement Agreement or the Plan<br \/>\nof Arrangement if such amendment or waiver would have a material negative effect<br \/>\non the consideration which the Holder is entitled to receive in exchange for the<br \/>\nSubject Securities under <\/p>\n<p>                                       4<\/p>\n<p>the Plan of Arrangement (and, for greater certainty, any change to the Exchange<br \/>\nRatio (as defined in the Plan of Arrangement) shall be deemed to be material for<br \/>\nthis purpose), unless the Holder gives its prior written consent to such waiver<br \/>\nor amendment, such consent not to be unreasonably withheld. The termination of<br \/>\nthis Agreement shall not prejudice the right of any party hereto in respect of<br \/>\nany breach hereof by the other party or parties.<\/p>\n<p>3.       NON-SOLICITATION AGREEMENT<\/p>\n<p>    (a)  The Holder hereby covenants and agrees not to, directly or<br \/>\n         indirectly, prior to the Expiration Date, (i) solicit, initiate or<br \/>\n         encourage, directly or indirectly, any submission of proposals or<br \/>\n         offers or engage in negotiations with any persons other than<br \/>\n         Parentco or any subsidiary thereof or take any action intended,<br \/>\n         designed or reasonably likely to facilitate the efforts of any<br \/>\n         persons, other than Parentco or any subsidiary thereof, relating<br \/>\n         to an Opposing Proposal; (ii) furnish any non-public information<br \/>\n         regarding the Target to any person in connection with or in<br \/>\n         response to an Opposing Proposal or potential Opposing Proposal;<br \/>\n         (iii) engage in any discussions or negotiate with any persons with<br \/>\n         respect to any Opposing Proposal; (iv) agree to, approve, endorse<br \/>\n         or recommend any Opposing Proposal; or (v) enter into any letter<br \/>\n         of intent, term sheet, memorandum of understanding or other<br \/>\n         similar document or any agreement contemplating or otherwise<br \/>\n         relating to any Opposing Proposal. The Holder shall immediately<br \/>\n         cease and cause to be terminated any existing discussions or<br \/>\n         negotiations with any persons other than Parentco that relate to<br \/>\n         any Opposing Proposal. In the event that the Holder receives from<br \/>\n         any third party any offer or indication of interest (whether made<br \/>\n         in writing or otherwise) regarding any Opposing Proposal, then the<br \/>\n         Holder shall promptly communicate to Parentco the material terms<br \/>\n         of each such Opposing Proposal, including the identity of the<br \/>\n         third party.<\/p>\n<p>    (b)  For purposes of this Agreement, &#8220;Opposing Proposal&#8221; means (i) any<br \/>\n         proposal, other than a proposal by Parentco or any of its<br \/>\n         subsidiaries, for an arrangement, amalgamation, merger or other<br \/>\n         business combination involving the Target or any subsidiary<br \/>\n         thereof, (ii) any proposal or offer, other than a proposal or<br \/>\n         offer by Parentco or any of its subsidiaries, to acquire from the<br \/>\n         Target or any subsidiary thereof in any manner, directly or<br \/>\n         indirectly, including by way of joint venture or exclusive<br \/>\n         license, an equity interest in the Target or any subsidiary<br \/>\n         thereof, any voting securities of the Target or any subsidiary<br \/>\n         thereof or a material amount of assets of the Target and its<br \/>\n         subsidiaries, taken as a whole, other than the issuance of shares<br \/>\n         of the Target pursuant to conversion rights or the exercise of<br \/>\n         options, each of which are outstanding on the date hereof and<br \/>\n         disclosed in the<\/p>\n<p>                                       5<\/p>\n<p>         Arrangement Agreement (which shares, if and when<br \/>\n         issued to the Holder, will become Subject Securities for the<br \/>\n         purposes of this Agreement), or (iii) any proposal or offer, other<br \/>\n         than a proposal or offer by Parentco or any of its subsidiaries,<br \/>\n         to acquire from the shareholders of the Target by tender offer,<br \/>\n         takeover bid, exchange offer, purchase agreement or otherwise more<br \/>\n         than 10% of the outstanding shares of any class of the Target<br \/>\n         (other than pursuant to the Alcatel Letter Agreement or the Celtic<br \/>\n         House Letter Agreement).<\/p>\n<p>4.       COVENANTS OF THE HOLDER<\/p>\n<p>    (a)  During the period from the date of this Agreement until the<br \/>\n         Expiration Date, except in accordance with the provisions of<br \/>\n         this Agreement, the Holder agrees that it will not, directly<br \/>\n         or indirectly:<\/p>\n<p>         (i)      sell, transfer, pledge, encumber, hypothecate or<br \/>\n                  assign, or otherwise dispose of, or enter into any<br \/>\n                  contract, option, hedging arrangement or other<br \/>\n                  arrangement or understanding with respect to the<br \/>\n                  sale, transfer, pledge, hypothecation or assignment,<br \/>\n                  or other disposition (which, for greater certainty,<br \/>\n                  shall exclude the act of the exercise of an option<br \/>\n                  for Target Shares) of, any Subject Securities, other<br \/>\n                  than pursuant to the obligations of the Holder under<br \/>\n                  the Alcatel Letter Agreement or the Celtic House<br \/>\n                  Letter Agreement or as set out in paragraph (d)<br \/>\n                  below;<\/p>\n<p>         (ii)     enter into any agreement or commitment providing for<br \/>\n                  or contemplating any of the events listed in<br \/>\n                  paragraph (i) above except for the Alcatel Letter<br \/>\n                  Agreement and the Celtic House Letter Agreement;<\/p>\n<p>         (iii)    withdraw or revoke, purport or attempt to withdraw or<br \/>\n                  revoke, or take any actions or steps which would have<br \/>\n                  the effect, by operation of law or otherwise, of<br \/>\n                  withdrawing or revoking, the Proxy at any time prior<br \/>\n                  to the termination of the Proxy in accordance with<br \/>\n                  its terms;<\/p>\n<p>         (iv)     deposit any Subject Securities into a voting trust or<br \/>\n                  grant any proxies or enter into any voting agreement<br \/>\n                  or arrangement with respect to any Subject<br \/>\n                  Securities, other than pursuant to this Agreement; or<\/p>\n<p>         (v)      exercise any  statutory or other right of dissent or appraisal<br \/>\n                  with respect to the Plan of Arrangement.<\/p>\n<p>                                       6<\/p>\n<p>    (b)  During the Term, the Holder agrees to use all reasonable<br \/>\n         efforts to complete the transactions contemplated by the<br \/>\n         Arrangement Agreement in accordance with the terms and<br \/>\n         conditions of such agreement, and, without limiting the<br \/>\n         generality of the foregoing, agrees to assist Parentco to<br \/>\n         complete the transactions contemplated by the Arrangement<br \/>\n         Agreement, including, without limitation, by co-operating with<br \/>\n         Parentco, at Parentco&#8217;s expense, in obtaining all<br \/>\n         governmental, regulatory and other approvals required to<br \/>\n         permit Parentco and the Target to complete the transactions<br \/>\n         provided for therein.<\/p>\n<p>    (c)  The Holder will as soon as practicable after the execution<br \/>\n         hereof or, in the case of any Subject Securities issued<br \/>\n         hereafter, as soon as practicable after such issuance, cause a<br \/>\n         legend substantially in the following form to be affixed to<br \/>\n         the certificate(s) representing all of the shares of the<br \/>\n         Target included in such Subject Securities:<\/p>\n<p>              &#8220;The shares represented by this certificate are subject to the<br \/>\n              provisions of a certain agreement made the 30th day of July, 2000<br \/>\n              between Redback Networks Inc., 610381 B.C. Inc. and 3494365 Canada<br \/>\n              Inc. and such shares are not transferable, except in compliance<br \/>\n              with the terms and conditions of such agreement.&#8221;;<\/p>\n<p>         and will promptly thereafter provide a photocopy of such<br \/>\n         certificate(s), bearing the foregoing legend, to Parentco.<\/p>\n<p>    d)   Notwithstanding the restriction contained in paragraph 4(a), a<br \/>\n         Holder may transfer all or any part of the Subject Securities to<br \/>\n         an affiliate of such Holder (as such term is defined in the CANADA<br \/>\n         BUSINESS CORPORATIONS ACT) (a &#8220;Transferee&#8221;), provided that prior<br \/>\n         to any such transfer the Transferee executes and delivers to<br \/>\n         Parentco an agreement, in form and content acceptable to Parentco,<br \/>\n         acting reasonably, with respect to the transferred Subject<br \/>\n         Securities, (including, without limitation, a duly completed and<br \/>\n         executed Proxy), under which the Transferee agrees to be bound by<br \/>\n         the terms of this Agreement and further agrees that, prior to the<br \/>\n         Transferee ceasing to be an affiliate of the Holder, it will<br \/>\n         re-transfer such Subject Securities to the Holder. No such<br \/>\n         transfer shall release the Holder from liability for its<br \/>\n         obligations under this Agreement.<\/p>\n<p>    (e)  Immediately upon the Effective Time, the Holder will execute<br \/>\n         and deliver to Parentco, if determined to be necessary by<br \/>\n         Parentco, a customary form of letter under Rule 145 under the<br \/>\n         U.S. SECURITIES ACT OF 1933 if the Holder is an affiliate<\/p>\n<p>                                       7<\/p>\n<p>         of the Target under such Act, which letter shall be substantially<br \/>\n         in the form appended to the Arrangement Agreement.<\/p>\n<p>    (f)  If the Holder is a party to the Shareholders&#8217; Agreement, the<br \/>\n         Holder shall, if requested by Parentco, execute and deliver at<br \/>\n         or before the Effective Date (as defined in the Arrangement<br \/>\n         Agreement) an agreement, in form and content acceptable to<br \/>\n         Parentco, acting reasonably, terminating the Shareholder&#8217;s<br \/>\n         Agreement effective as at the Effective Time (as defined in<br \/>\n         the Arrangement Agreement).<\/p>\n<p>5.       REPRESENTATIONS AND WARRANTIES OF THE HOLDER<\/p>\n<p>         The Holder represents and warrants to Parentco as follows:<\/p>\n<p>    (a)  the Holder is the sole legal and beneficial owner of the Subject<br \/>\n         Securities, free and clear of any encumbrance, pledge,<br \/>\n         hypothecation, charge, lien or adverse claim, other than pursuant<br \/>\n         to the Shareholders&#8217; Agreement, and the Holder has good and<br \/>\n         marketable title to and exclusive right to vote the Target Shares<br \/>\n         comprising the Subject Securities and, in the case of any options<br \/>\n         for Target Shares which comprise a part of the Subject Securities,<br \/>\n         the Holder has good title and the exclusive right to vote such<br \/>\n         options for Target Shares to the extent that any voting rights are<br \/>\n         conferred on the holder of such options;<\/p>\n<p>    (b)  the only securities of the Target owned, directly or<br \/>\n         indirectly, by the Holder are the Subject Securities (as set<br \/>\n         forth on the final page of this Agreement) and the Holder will<br \/>\n         not purchase or obtain any right or agreement to purchase, any<br \/>\n         additional securities of the Target during the period from the<br \/>\n         date of this Agreement to the Expiration Date except pursuant<br \/>\n         to the exercise of options for Target Shares which comprise a<br \/>\n         part of the Subject Securities and except pursuant to the<br \/>\n         Alcatel Letter Agreement or the Celtic House Letter Agreement;<\/p>\n<p>    (c)  the Holder has all necessary right, power and authority to execute<br \/>\n         and deliver this Agreement and the Proxy and to perform its<br \/>\n         obligations hereunder and thereunder and, if the Holder is a<br \/>\n         corporation or other body corporate, the execution and delivery of<br \/>\n         this Agreement and the Proxy and the performance and observance of<br \/>\n         all of its obligations contained herein and therein have been duly<br \/>\n         authorized by all necessary corporate action on its part;<\/p>\n<p>    (d)  the execution, delivery and performance of this Agreement and the<br \/>\n         Proxy by the Holder will not require, on the part of the Holder,<br \/>\n         the consent of or filing with any<\/p>\n<p>                                       8<\/p>\n<p>         other person other than the consent of each of the parties to the<br \/>\n         Shareholders&#8217; Agreement, which the Holder has obtained and will<br \/>\n         not constitute a violation of, conflict with or result in a<br \/>\n         default under (i) if the Holder is a corporation or other body<br \/>\n         corporate, the memorandum, articles, by-laws or other constating<br \/>\n         documents of the Holder, (ii) any contract, understanding or<br \/>\n         arrangement to which the Holder is a party or by which the Holder<br \/>\n         is bound, (iii) any judgment, decree or order applicable to the<br \/>\n         Holder, or (iv) any law, rule or regulation of any governmental<br \/>\n         body applicable to the Holder;<\/p>\n<p>    (e)  each of this Agreement and the Proxy has been duly executed<br \/>\n         and delivered by the Holder and, assuming the due<br \/>\n         authorization, execution and delivery of this Agreement by<br \/>\n         Parentco and Exchangeco, constitutes a legal, valid and<br \/>\n         binding obligation of the Holder, enforceable in accordance<br \/>\n         with its terms; and<\/p>\n<p>    (f)  none of the Subject Securities are subject to any voting trust,<br \/>\n         proxy or other agreement or arrangement with respect to the voting<br \/>\n         or disposition of the Subject Securities with respect to the<br \/>\n         matters referred to herein, other than (i) the Shareholders&#8217;<br \/>\n         Agreement, the applicable provisions of which have been waived by<br \/>\n         each of the parties thereto; (ii) this Agreement; and (iii) with<br \/>\n         respect to the disposition of the Subject Securities, the Alcatel<br \/>\n         Letter Agreement and the Celtic House Letter Agreement; and, there<br \/>\n         are no outstanding options, warrants or rights to purchase,<br \/>\n         acquire or convert, or agreements relating to, such Subject<br \/>\n         Securities, other than rights and agreements contained in the<br \/>\n         Shareholders&#8217; Agreement, the Alcatel Letter Agreement, the Celtic<br \/>\n         House Letter Agreement and this Agreement, none of which will<br \/>\n         impair or interfere with the Holder&#8217;s ability to perform or comply<br \/>\n         with its obligations, or Parentco&#8217;s ability to enforce its rights,<br \/>\n         under this Agreement.<\/p>\n<p>6.       EFFECT OF REPRESENTATIONS,<br \/>\n         WARRANTIES AND COVENANTS OF THE HOLDER<\/p>\n<p>         The Holder hereby agrees to indemnify and hold harmless Parentco from<br \/>\nand against any and all liabilities, losses, obligations, costs or expenses<br \/>\n(including reasonable fees and disbursements of legal counsel), arising out of,<br \/>\nresulting from or relating to any breach by the Holder of any of its<br \/>\nrepresentations, warranties, covenants or agreements contained in this<br \/>\nAgreement.<\/p>\n<p>                                       9<\/p>\n<p>7.       REPRESENTATIONS AND WARRANTIES OF PARENTCO AND EXCHANGECO <\/p>\n<p>         Each of Parentco and Exchangeco hereby represents and warrants to the<br \/>\nHolder as follows:<\/p>\n<p>         (a)      it is a corporation duly formed under the laws of the state of<br \/>\n                  Delaware, in the case of Parentco, and under the laws of<br \/>\n                  British Columbia, in the case of Exchangeco;<\/p>\n<p>         (b)      it has all requisite corporate power and authority to enter<br \/>\n                  into and perform all of its obligations under this Agreement<br \/>\n                  and under the Arrangement Agreement;<\/p>\n<p>         (c)      the execution and delivery of each of this Agreement and the<br \/>\n                  Arrangement Agreement and the consummation of the transactions<br \/>\n                  contemplated hereby and thereby have been duly authorized by<br \/>\n                  all necessary corporate action on its part;<\/p>\n<p>         (d)      each of this Agreement and the Arrangement Agreement has been<br \/>\n                  duly executed and delivered by it; and<\/p>\n<p>         (e)      assuming the due authorization, execution and delivery thereof<br \/>\n                  by each of the parties hereto other than Parentco and<br \/>\n                  Exchangeco, each of this Agreement and the Arrangement<br \/>\n                  Agreement constitutes a legal, valid and binding agreement of<br \/>\n                  each of Parentco and Exchangeco, enforceable in accordance<br \/>\n                  with its terms.<\/p>\n<p>8.       COVENANT OF PARENTCO<\/p>\n<p>         During the Term, Parentco agrees to use, and agrees to cause Exchangeco<br \/>\nto use, commercially reasonable efforts to complete the transactions<br \/>\ncontemplated by the Arrangement Agreement in accordance with the terms and<br \/>\nconditions of such agreement.<\/p>\n<p>9.       THIRD PARTY PROCEEDINGS<\/p>\n<p>         Notwithstanding the provisions of section 1, the Holder shall not be<br \/>\nobliged, and the holder of the Proxy shall not be entitled, to vote the Subject<br \/>\nSecurities in the manner provided therein if at the time of such vote there<br \/>\nshall be in force any order or decree of a Governmental Entity (as defined in<br \/>\nthe Arrangement Agreement) restraining or enjoining the Holder or the holder of<br \/>\nthe Proxy from voting the Subject Securities, provided that such order or decree<br \/>\nis not the result of any breach of representation, warranty, covenant or<br \/>\nagreement of the <\/p>\n<p>                                       10<\/p>\n<p>Holder in this Agreement, and provided further that the Holder<br \/>\nhas notified Parentco of such order or decree and has promptly taken, and<br \/>\ncontinues to diligently take, all reasonable action to cause such order or<br \/>\ndecree to be revoked, vacated or removed.<\/p>\n<p>10.      EFFECT OF REPRESENTATIONS, WARRANTIES AND COVENANTS OF PARENTCO AND<br \/>\n         EXCHANGECO<\/p>\n<p>         Parentco hereby agrees to indemnify and hold harmless the Holder from<br \/>\nand against any and all liabilities, losses, obligations, costs or expenses<br \/>\n(including reasonable fees and disbursements of legal counsel), arising out of,<br \/>\nresulting from or relating to any breach by Parentco or Exchangeco of any of its<br \/>\nrepresentations, warranties, covenants or agreements contained in this<br \/>\nAgreement.<\/p>\n<p>11.      ADJUSTMENTS<\/p>\n<p>         In the event of any increase or decrease or other change in the Subject<br \/>\nSecurities by reason of stock dividend, stock split, recapitalization,<br \/>\ncombination, exchange of shares or the like, the number of Subject Securities<br \/>\nsubject to this Agreement shall be adjusted appropriately and equitably.<\/p>\n<p>12.      GOVERNING LAW<\/p>\n<p>         This Agreement shall be governed by and construed in accordance with<br \/>\nthe laws of the Province of British Columbia and the laws of Canada applicable<br \/>\ntherein.<\/p>\n<p>13.      FURTHER ASSURANCES<\/p>\n<p>         Each party hereto will, at the request of the other party, promptly<br \/>\nexecute and deliver any and all such further documents and instruments and take<br \/>\nor cause to be taken any and all such further actions as may reasonably be<br \/>\nrequired in order to fully perform and carry out the terms and intent of this<br \/>\nAgreement.<\/p>\n<p>14.      ASSIGNMENT<\/p>\n<p>         This Agreement may not be assigned by any party hereto, except that (i)<br \/>\nParentco may assign this Agreement to any direct or indirect subsidiary thereof,<br \/>\nprovided that no such <\/p>\n<p>                                       11<\/p>\n<p>transfer shall release Parentco from liability for its obligations under this<br \/>\nAgreement, and (ii) the Holder may assign this Agreement to a Transferee of such<br \/>\nHolder in accordance with paragraph 4(d) hereof.<\/p>\n<p>15.      REMEDIES<\/p>\n<p>         The Holder acknowledges that each of the covenants set out in sections<br \/>\n1, 3 and 4 of this Agreement is reasonable and valid and further acknowledges<br \/>\nthat damages for breach of any of the covenants set out in sections 1, 3 and 4<br \/>\nof this Agreement may be inadequate as such breach may cause Parentco<br \/>\nirreparable harm. The Holder further acknowledges and agrees that the balance of<br \/>\nconvenience is in favour of Parentco and that Parentco shall be entitled, in<br \/>\naddition to any other remedies or damages that may be available at law or equity<br \/>\nor in this Agreement, to the remedy of specific performance of such covenants or<br \/>\nother commitments and preliminary and permanent injunctive relief to restrain<br \/>\nany breach or threatened breach of those covenants or other commitments or to<br \/>\notherwise enforce the provisions of this Agreement. The Holder agrees that the<br \/>\nforegoing acknowledgements may be used by Parentco as evidence in any court<br \/>\napplication for enforcement of the covenants or other commitments referred to<br \/>\nabove by way of specific performance or injunction and hereby waives any<br \/>\nrequirement for the posting or securing of any bond or other security in<br \/>\nconnection with obtaining any such equitable remedies.<\/p>\n<p>         Parentco acknowledges that the covenant set out in section 8 of this<br \/>\nAgreement is reasonable and valid and further acknowledges that damages for<br \/>\nbreach of the covenant set out in section 8 of this Agreement may be inadequate<br \/>\nas such breach may cause the Holder irreparable harm. Parentco further<br \/>\nacknowledges and agrees that the balance of convenience is in favour of the<br \/>\nHolder and that the Holder shall be entitled, in addition to any other remedies<br \/>\nor damages that may be available at law or equity or in this Agreement, to the<br \/>\nremedy of specific performance of such covenants or other commitments and<br \/>\npreliminary and permanent injunctive relief to restrain any breach or threatened<br \/>\nbreach of those covenants or other commitments or to otherwise enforce the<br \/>\nprovisions of this Agreement. Parentco agrees that the foregoing<br \/>\nacknowledgements may be used by the Holder as evidence in any court application<br \/>\nfor the enforcement of the covenants or other commitments referred to above by<br \/>\nway of specific performance or injunction and hereby waives any requirement for<br \/>\nthe posting or securing of any bond or other security in connection with<br \/>\nobtaining any such equitable remedies.<\/p>\n<p>                                       12<\/p>\n<p>16.      NOTICES<\/p>\n<p>         All notices or other communication required or permitted hereunder<br \/>\nshall be in writing and shall be deemed duly given if delivered in person, by<br \/>\nconfirmed facsimile transmission or by overnight courier service, addressed as<br \/>\nfollows:<\/p>\n<p>         (a)      to Parentco and to Exchangeco:<\/p>\n<p>                  Redback Networks Inc.<br \/>\n                  1195 Borregas Avenue<br \/>\n                  Sunnyvale, CA<br \/>\n                  94089<br \/>\n                  Attention:        President<br \/>\n                  Facsimile:        (408) 571-5195<\/p>\n<p>                  with a copy to:<\/p>\n<p>                  Fraser Milner Casgrain<br \/>\n                  1500 &#8211; 1040 West Georgia Street<br \/>\n                  Vancouver, British Columbia  V6E 4H8<br \/>\n                  Attention:        Gary R. Sollis<br \/>\n                  Facsimile:        (604) 683-5214<\/p>\n<p>                  and to:<\/p>\n<p>                  Gunderson Dettmer LLP<br \/>\n                  155 Constitution Drive<br \/>\n                  Menlo Park, California  94025<br \/>\n                  Attention:        Gregory K. Miller<br \/>\n                  Facsimile:        (650) 321-2800<\/p>\n<p>         (b)      to the Holder:<br \/>\n                  3494365 Canada Inc.<br \/>\n                  555 Legget Drive, Suite 211<br \/>\n                  Kanata, Ontario  K2K 2X3<br \/>\n                  Attention:        President<br \/>\n                  Facsimile:        (613) 271-2025<\/p>\n<p>                  with a copy to:<br \/>\n                  Abatis Systems Corporation<br \/>\n                  200-4190 Still Creek Drive<br \/>\n                  Burnaby, British Columbia  V5C 6C6<br \/>\n                  Attention:        President<br \/>\n                  Facsimile:        (604) 918-4795<\/p>\n<p>                                       13<\/p>\n<p>                  and to:<\/p>\n<p>                  McCarthy Tetrault<br \/>\n                  1300 &#8211; 777 Dunsmuir Street<br \/>\n                  P.O. Box 10424<br \/>\n                  Vancouver, British Columbia  V7Y 1K2<br \/>\n                  Attention:        Ted I. Koffman<br \/>\n                  Facsimile:        (604) 622-5707<\/p>\n<p>17.      SEVERABILITY<\/p>\n<p>         If any term, provision, covenant or restriction of this Agreement is<br \/>\nheld by a court of competent jurisdiction to be invalid, void or unenforceable,<br \/>\nthe remainder of the terms, provisions, covenants and restrictions of this<br \/>\nAgreement shall remain in full force and effect and shall in no way be affected,<br \/>\nimpaired or invalidated, and the parties hereto shall in such event negotiate in<br \/>\ngood faith to modify the Agreement to preserve each party&#8217;s anticipated benefits<br \/>\nunder this Agreement.<\/p>\n<p>18.      COUNTERPARTS<\/p>\n<p>         This Agreement may be executed in any number of counterparts, each of<br \/>\nwhich shall be deemed to be an original, but all of which together shall<br \/>\nconstitute one and the same agreement. A signed counterpart provided by way of<br \/>\nfacsimile shall be as binding upon the parties as an originally signed<br \/>\ncounterpart.<\/p>\n<p>19.      BINDING EFFECT; BENEFITS<\/p>\n<p>         This Agreement shall survive the death or incapacity of any Holder and<br \/>\nshall inure to the benefit of and shall be binding upon the parties hereto and<br \/>\ntheir respective heirs, legal representatives, successors and permitted assigns.<br \/>\nNothing in this Agreement, expressed or implied, is intended to or shall confer<br \/>\non any person other than the parties hereto and their respective heirs, legal<br \/>\nrepresentatives and successors and permitted assigns any rights, remedies,<br \/>\nobligations or liabilities under or by reason of this Agreement.<\/p>\n<p>                                       14<\/p>\n<p>20.      NO AGENCY<\/p>\n<p>         Nothing herein shall be deemed create any agency or partnership<br \/>\nrelationship between the parties hereto.<\/p>\n<p>         IN WITNESS WHEREOF, the parties have cause this Agreement to be duly<br \/>\nexecuted on the day and year first above written.<\/p>\n<p>REDBACK NETWORKS INC.<\/p>\n<p>Per:                                       3494365 CANADA INC.<br \/>\n    &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-     &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br \/>\n     Authorized Signatory                  Print Name of Holder<\/p>\n<p>    &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-     &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br \/>\n     Print Name and Title                  Signature of Holder (or if Holder is<br \/>\n                                           a corporation, of an Authorized<br \/>\n                                           Signatory)<\/p>\n<p>                                           &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br \/>\n610381 B.C. INC.                           (Print Name and Title of Authorized<br \/>\n                                           Signatory of Holder, if applicable)<\/p>\n<p>Per:<br \/>\n    &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;       &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br \/>\n     Authorized Signatory                  Address<\/p>\n<p>    &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;       &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br \/>\n     Print Name and Title                  Telephone<\/p>\n<p>                                           &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br \/>\n                                           Facsimile<\/p>\n<p>                                           &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br \/>\n                                           Securities beneficially owned or held<br \/>\n                                           by Holder:<\/p>\n<p>                                           3,334,333             Class A Voting<br \/>\n                                           &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br \/>\n                                           Common Shares of the Corporation<\/p>\n<p>                                                                     Class B<br \/>\n                                           &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br \/>\n                                           Non-Voting Common Shares of the<br \/>\n                                           Corporation<\/p>\n<p>                                                                 options granted<br \/>\n                                           &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br \/>\n                                           under the Corporation&#8217;s Option Plans<\/p>\n<p>                                       15<\/p>\n<p>                              REDBACK NETWORKS INC.<\/p>\n<p>                                    EXHIBIT A<\/p>\n<p>                                IRREVOCABLE PROXY<\/p>\n<p>         The undersigned holder of securities of Abatis Systems Corporation (the<br \/>\n&#8220;Corporation&#8221;), a corporation incorporated pursuant to the CANADA BUSINESS<br \/>\nCORPORATIONS ACT, hereby irrevocably (to the fullest extent permitted by law)<br \/>\nnominates and appoints the Senior Vice-President and Chief Financial Officer of<br \/>\nRedback Networks Inc., or, failing him or her, the General Counsel and Assistant<br \/>\nSecretary of Redback Networks Inc., as the sole and exclusive proxy of the<br \/>\nundersigned, with full power of substitution and resubstitution, to attend, act,<br \/>\nvote and exercise all voting and related rights (to the full extent that the<br \/>\nundersigned is entitled to do so) with respect to (i) all shares of any class of<br \/>\nthe Corporation and options to purchase shares of the Corporation that are<br \/>\nbeneficially owned by the undersigned and (ii) any and all other shares or<br \/>\nsecurities of the Corporation issued or issuable in respect thereof on or after<br \/>\nthe date hereof (collectively, the &#8220;Subject Securities&#8221;), in accordance with the<br \/>\nterms of this Proxy at any time until the Expiration Date. The Subject<br \/>\nSecurities beneficially owned by the undersigned shareholder of the Corporation<br \/>\nas of the date of this Proxy are listed on the final page of this Proxy.<\/p>\n<p>         This Proxy is irrevocable (to the fullest extent permitted by law)<br \/>\nuntil the Expiration Date, is coupled with an interest and is granted pursuant<br \/>\nto the Principal Shareholder Voting Agreement of even date herewith between<br \/>\nParentco, Exchangeco and the undersigned shareholder (the &#8220;Voting Agreement&#8221;).<br \/>\nAll capitalized terms used and not otherwise defined herein shall have the same<br \/>\nmeaning as assigned thereto in the Voting Agreement. Upon the undersigned&#8217;s<br \/>\nexecution of this Proxy, any and all prior proxies given by the undersigned with<br \/>\nrespect to any of the Subject Securities are hereby revoked and the undersigned<br \/>\nagrees not to grant any subsequent proxies with respect to the Subject<br \/>\nSecurities for any of the matters set forth in the ensuing paragraph until the<br \/>\nExpiration Date.<\/p>\n<p>         The proxyholder appointed hereunder is hereby authorized and empowered<br \/>\nby the undersigned, at any time prior to the Expiration Date, to act as the<br \/>\nundersigned&#8217;s proxy to vote the Subject Securities, and, subject to section 9 of<br \/>\nthe Voting Agreement, to exercise all voting, consent and similar rights of the<br \/>\nundersigned with respect to the Subject Securities (including, without<br \/>\nlimitation, the power to execute and deliver written consents) at every annual,<br \/>\nspecial or adjourned meeting of the shareholders or the optionholders of the<br \/>\nCorporation or of any class of shareholders of the Corporation and in every<br \/>\nwritten consent in lieu of such meeting (i) in favour <\/p>\n<p>of the Arrangement Agreement and Plan of Arrangement and other transactions<br \/>\ncontemplated by the Arrangement Agreement and Plan of Arrangement, (ii) against<br \/>\nany proposed action by the Target or any other party the result of which could<br \/>\nbe reasonably inferred to prevent or delay Parentco from completing the<br \/>\ntransactions contemplated by the Arrangement Agreement or the Plan of<br \/>\nArrangement, or to materially change the business, operations, capital or<br \/>\naffairs of the Target, and (iii) otherwise as contemplated by the Voting<br \/>\nAgreement.<\/p>\n<p>         The proxyholder appointed hereunder may not exercise this Proxy on any<br \/>\nother matter except as provided above and in accordance with the Voting<br \/>\nAgreement. The undersigned shareholder may vote and may grant proxies in respect<br \/>\nof the Subject Securities on all other matters.<\/p>\n<p>         Any obligation of the undersigned hereunder shall be binding upon the<br \/>\nsuccessors and assigns of the undersigned.<\/p>\n<p>         This Proxy is irrevocable (to the fullest extent permitted by law)<br \/>\nuntil the Expiration Date. This Proxy shall terminate, and be of no further<br \/>\nforce and effect, automatically upon the Expiration Date.<\/p>\n<p>         This Proxy is not solicited by or on behalf of management of the<br \/>\nCorporation.<\/p>\n<p>Dated:  July 30, 2000      3494365 CANADA INC.<br \/>\n                           &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br \/>\n                           Print Name of Shareholder<\/p>\n<p>                           &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br \/>\n                           Signature of Shareholder (or if Shareholder is a<br \/>\n                           corporation, of an Authorized Signatory)<\/p>\n<p>                           &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br \/>\n                           (Print Name and Title of Authorized Signatory of<br \/>\n                           Shareholder, if applicable )<\/p>\n<p>                           Securities beneficially owned or held by Shareholder:<\/p>\n<p>                           3,334,333   Class A Voting Common Shares of the<br \/>\n                           &#8212;&#8212;&#8212;&#8211;<br \/>\n                           Corporation<br \/>\n                                       Class B Non-Voting Common Shares of the<br \/>\n                           &#8212;&#8212;&#8212;&#8211;<br \/>\n                           Corporation<\/p>\n<p>                                       options granted under the Corporation&#8217;s<br \/>\n                           &#8212;&#8212;&#8212;&#8211;<br \/>\n                           Option Plans<\/p>\n<p>                                       2<\/p>\n<p>                                    EXHIBIT G<\/p>\n<p>                                SUPPORT AGREEMENT<\/p>\n<p>         THIS MEMORANDUM OF AGREEMENT made as of the o day of o, 2000<\/p>\n<p>AMONG:<\/p>\n<p>            REDBACK  NETWORKS INC., a corporation existing under the laws<br \/>\n            &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br \/>\n            of the State of Delaware<\/p>\n<p>            (&#8220;REDBACK&#8221;)<\/p>\n<p>AND:<\/p>\n<p>            610380 B.C. INC., a company existing under the laws of the<br \/>\n            &#8212;&#8212;&#8212;&#8212;&#8212;-<br \/>\n            Province of British Columbia<\/p>\n<p>            (&#8220;NEWCO&#8221;)<\/p>\n<p>AND:<\/p>\n<p>            610381 B.C. INC., a company  existing under the laws of the<br \/>\n            &#8212;&#8212;&#8212;&#8212;&#8212;-<br \/>\n            Province of British Columbia<\/p>\n<p>            (&#8220;EXCHANGECO&#8221;)<\/p>\n<p>         WHEREAS:<\/p>\n<p>A.       Pursuant to an arrangement agreement (the &#8220;ARRANGEMENT AGREEMENT&#8221;)<br \/>\ndated as of July 30, 2000 among Redback, Exchangeco and Abatis Systems<br \/>\nCorporation (&#8220;ABATIS&#8221;), Exchangeco is to issue exchangeable shares (the<br \/>\n&#8220;EXCHANGEABLE SHARES&#8221;) to certain holders of Class A Voting Common Shares and<br \/>\nClass B Non-Voting Common Shares of Abatis pursuant to the plan of arrangement<br \/>\n(the &#8220;PLAN OF ARRANGEMENT&#8221;) contemplated by the Arrangement Agreement; and<\/p>\n<p>B.       Pursuant to the Arrangement Agreement Redback and Exchangeco have<br \/>\nagreed to execute a support agreement substantially in the form of this<br \/>\nAgreement;<\/p>\n<p>         NOW THEREFORE in consideration of the respective covenants and<br \/>\nagreements in this Agreement and for other valuable consideration (the receipt<br \/>\nand sufficiency of which are hereby acknowledged), the parties hereto covenant<br \/>\nand agree as follows:<\/p>\n<p>1.0      DEFINITIONS AND INTERPRETATION<\/p>\n<p>1.1      DEFINED TERMS. Each term denoted herein by initial capital letters and<br \/>\nnot otherwise defined herein shall have the meaning ascribed thereto in the<br \/>\nrights, privileges, restrictions and conditions (collectively, the &#8220;SHARE<br \/>\nPROVISIONS&#8221;) attaching to the Exchangeable Shares attached as Appendix 1 to the<br \/>\nPlan of Arrangement as set out in the Articles of Arrangement of Abatis, unless<br \/>\nthe context requires otherwise.<\/p>\n<p>1.2      INTERPRETATION NOT AFFECTED BY HEADINGS. The division of this Agreement<br \/>\ninto sections and the insertion of headings are for convenience of reference<br \/>\nonly and shall not affect the construction or interpretation of this Agreement.<br \/>\nUnless otherwise indicated, all references to a &#8220;section&#8221; followed by a number<br \/>\nand\/or a letter refer to the specified section of this Agreement. The terms<br \/>\n&#8220;this Agreement&#8221;, &#8220;hereof&#8221;, &#8220;herein&#8221; and &#8220;hereunder&#8221; and similar expressions<br \/>\nrefer to this Agreement and not to any particular section or other portion<br \/>\nhereof and include any agreement or instrument supplementary or ancillary<br \/>\nhereto.<\/p>\n<p>1.3      NUMBER, GENDER AND PERSONS. In this Agreement, unless the context<br \/>\notherwise requires, words importing the singular number only shall include the<br \/>\nplural and VICE VERSA and words importing any gender shall include all genders.<\/p>\n<p>1.4      DATE FOR ANY ACTION. If any date on which any action is required to be<br \/>\ntaken under this Agreement is not a Business Day, such action shall be required<br \/>\nto be taken on the next succeeding Business Day. For the purposes of this<br \/>\nAgreement, a &#8220;BUSINESS DAY&#8221; means any day on which commercial banks are open for<br \/>\nbusiness in San Francisco, California and Vancouver, British Columbia, other<br \/>\nthan a Saturday, a Sunday or a day observed as a holiday in Vancouver, British<br \/>\nColumbia under the laws of the Province of British Columbia or the federal laws<br \/>\nof Canada or in San Francisco, California under the laws of the State of<br \/>\nCalifornia or the federal laws of the United States of America.<\/p>\n<p>                                       2<\/p>\n<p>2.0      COVENANTS OF REDBACK AND EXCHANGECO<br \/>\n2.1      COVENANTS  REGARDING  EXCHANGEABLE  SHARES. So long as any Exchangeable<br \/>\nShares not owned by Redback or its Affiliates are outstanding, Redback will:<\/p>\n<p>         (a)      not declare or pay any dividend on the Redback Common Shares<br \/>\n                  unless (i) Exchangeco shall simultaneously declare or pay, as<br \/>\n                  the case may be, an equivalent dividend (as provided for in<br \/>\n                  section 3.1 of the Share Provisions) on the Exchangeable<br \/>\n                  Shares and (ii) Exchangeco shall have or shall be provided<br \/>\n                  with sufficient money or other assets or authorized but<br \/>\n                  unissued securities available to enable the due declaration<br \/>\n                  and the due and punctual payment, in accordance with<br \/>\n                  applicable law, of any such dividend on the Exchangeable<br \/>\n                  Shares;<\/p>\n<p>         (b)      advise Exchangeco sufficiently in advance of the declaration<br \/>\n                  by Redback of any dividend on the Redback Common Shares and<br \/>\n                  take all such other actions as are reasonably necessary, in<br \/>\n                  cooperation with Exchangeco, to ensure that the respective<br \/>\n                  declaration date, record date and payment date for a dividend<br \/>\n                  on the Exchangeable Shares shall be the same as the<br \/>\n                  declaration date, record date and payment date for the<br \/>\n                  corresponding dividend on the Redback Common Shares;<\/p>\n<p>         (c)      ensure that the record date for any dividend declared on<br \/>\n                  Redback Common Shares is not less than 10 Business Days after<br \/>\n                  the declaration date of such dividend;<\/p>\n<p>         (d)      take all such actions and do all such things as are reasonably<br \/>\n                  necessary or desirable to enable and permit Exchangeco, in<br \/>\n                  accordance with applicable law, to pay and otherwise perform<br \/>\n                  its obligations with respect to the satisfaction of the<br \/>\n                  Liquidation Amount, the Retraction Price or the Redemption<br \/>\n                  Price in respect of each issued and outstanding Exchangeable<br \/>\n                  Share upon the liquidation, dissolution or winding-up of<br \/>\n                  Exchangeco, the delivery of a Retraction Request by a holder<br \/>\n                  of Exchangeable Shares or a redemption of Exchangeable Shares<br \/>\n                  by Exchangeco, as the case may be, including without<br \/>\n                  limitation all such actions and all such things as are<br \/>\n                  necessary or desirable to enable and permit Exchangeco to<br \/>\n                  cause to be delivered Redback Common Shares to the holders of<br \/>\n                  Exchangeable Shares in accordance with the provisions of<br \/>\n                  Article 5, 6 or 7, as the case may be, of the Share<br \/>\n                  Provisions;<\/p>\n<p>         (e)      take all such actions and do all such things as are reasonably<br \/>\n                  necessary or desirable to enable and permit Newco, in<br \/>\n                  accordance with applicable law, to perform its obligations<br \/>\n                  arising upon the exercise by it of the Liquidation Call Right,<br \/>\n                  the Retraction Call Right or the Redemption Call Right,<br \/>\n                  including without limitation all such actions and all such<br \/>\n                  things as are necessary or desirable to <\/p>\n<p>                                       3<\/p>\n<p>                  enable and permit Newco to cause to be delivered Redback<br \/>\n                  Common Shares to the holders of Exchangeable Shares in<br \/>\n                  accordance with the provisions of the Liquidation Call Right,<br \/>\n                  the Retraction Call Right or the Redemption Call Right, as the<br \/>\n                  case may be;<\/p>\n<p>         (f)      not exercise its vote as a shareholder, nor allow any direct<br \/>\n                  or indirect subsidiary to exercise its own vote as a<br \/>\n                  shareholder, of Exchangeco to initiate the voluntary<br \/>\n                  liquidation, dissolution or winding-up of Exchangeco nor take<br \/>\n                  any action or omit to take any action that is designed to<br \/>\n                  result in the liquidation, dissolution or winding-up of<br \/>\n                  Exchangeco;<\/p>\n<p>         (g)      not exercise its vote as a shareholder, nor allow any direct<br \/>\n                  or indirect subsidiary of Redback to exercise its own vote as<br \/>\n                  a shareholder, of Exchangeco to authorize the continuance or<br \/>\n                  other transfer of the corporate existence of Exchangeco to any<br \/>\n                  jurisdiction outside of Canada;<\/p>\n<p>         (h)      at the same time, or as near thereto as is reasonably<br \/>\n                  practicable, as such materials are first sent to holders of<br \/>\n                  Redback Common Shares by or on behalf of management of<br \/>\n                  Redback, mail or cause to be mailed (or otherwise communicate<br \/>\n                  in the same manner as Redback utilizes in communicating to<br \/>\n                  holders of Redback Common Shares) to each holder of<br \/>\n                  Exchangeable Shares, other than Affiliates of Redback, copies<br \/>\n                  of all proxy materials (including notices of Redback<br \/>\n                  shareholder meetings but excluding proxies to vote Redback<br \/>\n                  Common Shares), information statements or circulars, reports<br \/>\n                  (including without limitation all interim and annual financial<br \/>\n                  statements) and other written communications that, in each<br \/>\n                  case, are to be distributed from time to time to holders of<br \/>\n                  Redback Common Shares;<\/p>\n<p>         (i)      as soon as is reasonably practicable after receipt by Redback<br \/>\n                  or the shareholders of Redback (if such receipt is known by<br \/>\n                  Redback) of any material sent or given to the holders of<br \/>\n                  Redback Common Shares by or on behalf of a third party,<br \/>\n                  including without limitation dissident proxy and information<br \/>\n                  circulars (and related information and material) and tender<br \/>\n                  and exchange offer circulars (and related information and<br \/>\n                  material), use reasonable efforts to obtain and deliver to<br \/>\n                  each holder of Exchangeable Shares, other than Affiliates of<br \/>\n                  Redback, copies of all such materials, other than proxies to<br \/>\n                  vote Redback Common Shares;<\/p>\n<p>         (j)      not call for redemption of any Preferred Shares it holds and<br \/>\n                  not allow Exchangeco to call for redemption of any of the<br \/>\n                  issued and outstanding Preferred Shares;<\/p>\n<p>                                       4<\/p>\n<p>         (k)      forthwith give written notice to the holders of Exchangeable<br \/>\n                  Shares if it intends to take action which would result in<br \/>\n                  Exchangeco becoming any of the entities described in<br \/>\n                  paragraphs (a) to (e.l), inclusive, of the definition of<br \/>\n                  &#8220;specified financial institution&#8221; in subsection 248(1) of the<br \/>\n                  INCOME TAX ACT (Canada); and<\/p>\n<p>         (l)      forthwith give written notice to the holders of Exchangeable<br \/>\n                  Shares if it intends to carry on, as its principal business,<br \/>\n                  an &#8220;investment business&#8221;, as such term is defined for purposes<br \/>\n                  of clause (b)(ii)(A) of the definition of &#8220;exempt interest&#8221; in<br \/>\n                  proposed subsection 94.1(1) of the INCOME TAX ACT (Canada) as<br \/>\n                  set out in the draft legislation regarding the taxation of<br \/>\n                  non-resident trusts and foreign investment entities released<br \/>\n                  by the Department of Finance of Canada on June 22, 2000 as<br \/>\n                  amended from time to time or as enacted and in effect from<br \/>\n                  time to time.<\/p>\n<p>         Any written materials distributed by Redback to holders of Exchangeable<br \/>\nShares pursuant to this Section 2.1 shall be sent by mail (or otherwise<br \/>\ncommunicated in the same manner as Redback utilizes in communications to holders<br \/>\nof Redback Common Shares) to each holder at its respective address shown on the<br \/>\nregister of holders of Exchangeable Shares maintained by or on behalf of<br \/>\nExchangeco.<\/p>\n<p>2.2      SEGREGATION OF FUNDS. Redback will cause Exchangeco to deposit a<br \/>\nsufficient amount of its funds in a separate account of Exchangeco and segregate<br \/>\na sufficient amount of such other of its assets and property as is necessary to<br \/>\nenable Exchangeco to pay dividends when due and to pay or otherwise satisfy its<br \/>\nrespective obligations under Article 5, 6 or 7 of the Share Provisions, as<br \/>\napplicable.<\/p>\n<p>2.3      RESERVATION OF REDBACK COMMON SHARES. Redback hereby represents,<br \/>\nwarrants and covenants in favour of Exchangeco and Newco that Redback has<br \/>\nirrevocably reserved for issuance and will, at all times while any Exchangeable<br \/>\nShares (other than Exchangeable Shares held by Redback or its Affiliates) are<br \/>\noutstanding, keep available, free from pre-emptive and other rights, out of its<br \/>\nauthorized and unissued capital stock such number of Redback Common Shares (or<br \/>\nother shares or securities into which Redback Common Shares may be reclassified<br \/>\nor changed as contemplated by section 2.7 hereof) (a) as is equal to the sum of<br \/>\n(i) the number of Exchangeable Shares issued and outstanding from time to time<br \/>\nand (ii) the number of Exchangeable Shares issuable upon the exercise of all<br \/>\nrights to acquire Exchangeable Shares outstanding from time to time and (b) as<br \/>\nare now and may hereafter be required to enable and permit Redback to meet its<br \/>\nobligations under the Exchange Trust Agreement and under any other security or<br \/>\ncommitment pursuant to which Redback may now or hereafter be required to <\/p>\n<p>                                       5<\/p>\n<p>issue Redback Common Shares, to enable and permit Newco to meet its obligations<br \/>\nunder each of the Liquidation Call Right, the Retraction Call Right and the<br \/>\nRedemption Call Right and to enable and permit Exchangeco to meet its<br \/>\nobligations hereunder and under the Share Provisions.<\/p>\n<p>2.4      NOTIFICATION OF CERTAIN EVENTS. In order to assist Redback to comply<br \/>\nwith its obligations hereunder and to permit Newco to exercise the Liquidation<br \/>\nCall Right, the Retraction Call Right and the Redemption Call Right, Exchangeco<br \/>\nwill notify Redback and Newco of each of the following events at the times set<br \/>\nforth below:<\/p>\n<p>         (a)      promptly, upon the earlier of (i) receipt by Exchangeco of<br \/>\n                  notice of and (ii) Exchangeco otherwise becoming aware of, any<br \/>\n                  threatened or instituted claim, suit, petition or other<br \/>\n                  proceedings with respect to the involuntary liquidation,<br \/>\n                  dissolution or winding-up of Exchangeco or to effect any other<br \/>\n                  distribution of the assets of Exchangeco among its<br \/>\n                  shareholders for the purpose of winding up its affairs;<\/p>\n<p>         (b)      immediately, upon receipt by Exchangeco of a Retraction<br \/>\n                  Request;<\/p>\n<p>         (c)      on the same date on which notice of redemption is given to<br \/>\n                  holders of Exchangeable Shares, upon the determination of a<br \/>\n                  Redemption Date in accordance with the Share Provisions; and<\/p>\n<p>         (d)      as soon as practicable upon the issuance by Exchangeco of any<br \/>\n                  Exchangeable Shares or rights to acquire Exchangeable Shares<br \/>\n                  (other than the issuance of Exchangeable Shares and rights to<br \/>\n                  acquire Exchangeable Shares in exchange for outstanding shares<br \/>\n                  of any class of Abatis pursuant to the Arrangement).<\/p>\n<p>2.5      DELIVERY OF REDBACK COMMON SHARES TO EXCHANGECO AND NEWCO. In<br \/>\nfurtherance of Redback&#8217;s obligations under sections 2.1(d) and (e) hereof, upon<br \/>\nnotice from Exchangeco or Newco of any event that requires Exchangeco or Newco,<br \/>\nas the case may be, to cause to be delivered Redback Common Shares to any holder<br \/>\nof Exchangeable Shares, Redback shall forthwith issue and deliver or cause to be<br \/>\ndelivered to Exchangeco or Newco, as the case may be, the requisite number of<br \/>\nRedback Common Shares to be received by, and issued to or to the order of, the<br \/>\nformer holder of the surrendered Exchangeable Shares, as Exchangeco or Newco, as<br \/>\nthe case may be, shall direct. All such Redback Common Shares shall be duly<br \/>\nauthorized and validly issued as fully paid and non-assessable shares of Redback<br \/>\nand shall be free and clear of any lien, claim or encumbrance. In consideration<br \/>\nof the issuance and delivery of <\/p>\n<p>                                       6<\/p>\n<p>each such Redback Common Share, Exchangeco or Newco, as the case may be, shall<br \/>\nissue to Redback, or as Redback shall direct, common or preferred shares of<br \/>\nExchangeco or Newco having equivalent value and Redback acknowledges and agrees<br \/>\nthat such common or preferred shares of Exchangeco or Newco shall be sufficient<br \/>\nconsideration for the issuance of the Redback Common Shares to Exchangeco or<br \/>\nNewco, as the case may be. Redback will cause each certificate representing such<br \/>\nRedback Common Shares issued to bear the legends as required below:<\/p>\n<p>         (a)      each Redback Common Share to be issued pursuant to this<br \/>\n                  Section 2.5 shall bear the following legend:<\/p>\n<p>                  &#8220;THE SECURITIES REPRESENTED HEREBY MAY NOT BE SOLD, PLEDGED OR<br \/>\n                  OTHERWISE TRANSFERRED EXCEPT IN ACCORDANCE WITH RULE 145 OF<br \/>\n                  THE SECURITIES ACT OF 1933, AS AMENDED.&#8221;<\/p>\n<p>         (b)      each Redback Common Share to be issued pursuant to this<br \/>\n                  Section 2.5 prior to the 90th day following the Effective Date<br \/>\n                  (as such term is defined in the Plan of Arrangement) shall<br \/>\n                  bear the following legend:<\/p>\n<p>                  &#8220;THE SECURITIES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO<br \/>\n                  A LOCK-UP PROVISION UNDER THE PLAN OF ARRANGEMENT UNDER<br \/>\n                  SECTION 192 OF THE CANADA BUSINESS CORPORATIONS ACT BETWEEN<br \/>\n                  ABATIS SYSTEMS CORPORATION AND ITS SHAREHOLDERS, AMONG OTHERS,<br \/>\n                  PURSUANT TO WHICH THE HOLDER OF THE SECURITIES REPRESENTED BY<br \/>\n                  THIS CERTIFICATE AGREES THAT SUCH HOLDER SHALL NOT OFFER TO<br \/>\n                  SELL, CONTRACT TO SELL OR OTHERWISE SELL, DISPOSE OF OR GRANT<br \/>\n                  ANY RIGHTS WITH RESPECT TO SUCH SECURITIES FOR A CERTAIN<br \/>\n                  PERIOD OF TIME (NOT TO EXCEED 90 DAYS) AFTER _________, 2000.<br \/>\n                  THE FOREGOING RESTRICTION PRECLUDES SUCH HOLDER FROM ENGAGING<br \/>\n                  IN ANY HEDGING OR OTHER TRANSACTIONS THAT MAY LEAD TO OR<br \/>\n                  RESULT IN A SALE OF THE SECURITIES REPRESENTED BY THIS<br \/>\n                  CERTIFICATE DURING SUCH PERIOD EVEN IF SUCH SECURITIES WOULD<br \/>\n                  BE SOLD BY SOMEONE OTHER THAN THE HOLDER.&#8221;<\/p>\n<p>                                       7<\/p>\n<p>         (c)      each Redback Common Share to be issued pursuant to this<br \/>\n                  Section 2.5 prior to the existence of an effective<br \/>\n                  registration statement filed pursuant to the Registration<br \/>\n                  Rights Agreement dated as of the date hereof between Redback<br \/>\n                  and Andrew Waitman, as agent for the shareholders of Abatis,<br \/>\n                  registering such Redback Common Shares shall bear the<br \/>\n                  following legend:<\/p>\n<p>                  &#8220;THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED OR<br \/>\n                  QUALIFIED PURSUANT TO THE SECURITIES ACT OF 1933, AS AMENDED<br \/>\n                  (THE &#8220;SECURITIES ACT&#8221;), OR ANY STATE SECURITIES LAW. NEITHER<br \/>\n                  THESE SHARES NOR ANY PORTION THEREOF OR INTEREST THEREIN, MAY<br \/>\n                  BE SOLD, TRANSFERRED OR OTHERWISE DISPOSED OF UNLESS (1) THE<br \/>\n                  SAME ARE REGISTERED AND QUALIFIED IN ACCORDANCE WITH THE<br \/>\n                  SECURITIES ACT AND ANY APPLICABLE STATE SECURITIES LAW, (2)<br \/>\n                  THE SHARES ARE SOLD IN COMPLIANCE WITH RULE 144 UNDER THE<br \/>\n                  SECURITIES ACT, OR (3) IN THE OPINION OF COUNSEL, REASONABLY<br \/>\n                  SATISFACTORY TO REDBACK NETWORKS INC., SUCH REGISTRATION AND<br \/>\n                  QUALIFICATION ARE NOT REQUIRED. HEDGING TRANSACTIONS INVOLVING<br \/>\n                  THESE SECURITIES MAY NOT BE CONDUCTED UNLESS CONDUCTED IN<br \/>\n                  COMPLIANCE WITH THE SECURITIES ACT.&#8221;<\/p>\n<p>         (d)      each Redback Common Share to be issued pursuant to this<br \/>\n                  Section 2.5 in exchange for Exchangeable Shares which are<br \/>\n                  Escrow Securities (as such term is defined in the Plan of<br \/>\n                  Arrangement) shall bear the following legend:<\/p>\n<p>                  &#8220;THE SECURITIES REPRESENTED HEREBY ARE SUBJECT TO FORFEITURE<br \/>\n                  AND CERTAIN OTHER RESTRICTIONS ON TRANSFER PURSUANT TO THE<br \/>\n                  TERMS OF THE PLAN OF ARRANGEMENT UNDER SECTION 192 OF THE<br \/>\n                  CANADA BUSINESS CORPORATIONS ACT BETWEEN ABATIS SYSTEMS<br \/>\n                  CORPORATION AND ITS SHAREHOLDERS, AMONG OTHERS, AND THE ESCROW<br \/>\n                  AGREEMENT BETWEEN REDBACK NETWORKS INC., 610381 B.C. INC.,<br \/>\n                  MONTREAL TRUST COMPANY OF CANADA AND ANDREW WAITMAN, AS AGENT<br \/>\n                  FOR THE SHAREHOLDERS OF ABATIS SYSTEMS CORPORATION, AND MAY<br \/>\n                  NOT BE SOLD, OFFERED FOR SALE, PLEDGED OR HYPOTHECATED EXCEPT<br \/>\n                  IN ACCORDANCE WITH THE TERMS OF SUCH AGREEMENTS.&#8221;<\/p>\n<p>                                       8<\/p>\n<p>2.6      QUALIFICATION OF REDBACK COMMON SHARES. If any Redback Common Shares<br \/>\n(or other shares or securities into which Redback Common Shares may be<br \/>\nreclassified or changed as contemplated by section 2.7 hereof) to be issued and<br \/>\ndelivered hereunder require registration or qualification with or approval of or<br \/>\nthe filing of any document, including any prospectus or similar document or the<br \/>\ntaking of any proceeding with or the obtaining of any order, ruling or consent<br \/>\nfrom any governmental or regulatory authority (i) under any Canadian provincial<br \/>\nsecurities or other law or regulation or pursuant to the rules and regulations<br \/>\nof any securities or other regulatory authority applicable to holders who are<br \/>\nresident in the Provinces of Alberta, Ontario or British Columbia, or (ii) under<br \/>\nany United States federal or state securities or other law or regulation or<br \/>\npursuant to the rules and regulations of any United States securities or other<br \/>\nregulatory authority before such shares (or such other shares or securities) may<br \/>\nbe issued by Redback and delivered by Redback at the direction of Newco or<br \/>\nExchangeco, if applicable, to the holder of surrendered Exchangeable Shares or<br \/>\nin order that such shares (or such other shares or securities) may be freely<br \/>\ntraded thereafter through the facilities of a stock exchange or market in the<br \/>\nUnited States or through the NNM provided that such first trade is made in<br \/>\naccordance with the rules of the stock exchange or market upon which the trade<br \/>\nis made or the rules of the NNM in accordance with all laws applicable to that<br \/>\nstock exchange or market or applicable to the NNM (other than any restrictions<br \/>\nof general application on transfer by reason of a holder being a &#8220;control<br \/>\nperson&#8221; of Redback for purposes of Canadian provincial securities law or an<br \/>\n&#8220;affiliate&#8221; of Redback for purposes of United States federal or state securities<br \/>\nlaw), Redback will in good faith expeditiously take all such actions and do all<br \/>\nsuch things as are necessary or desirable to cause such Redback Common Shares<br \/>\n(or such other shares or securities) to be and remain duly registered, qualified<br \/>\nor approved under United States and\/or Canadian law, as the case may be,<br \/>\nprovided that nothing herein shall require Redback to prepare, file with the<br \/>\nUnited States Securities and Exchange Commission or maintain a registration<br \/>\nstatement, prospectus or similar document with regard to such shares or<br \/>\notherwise qualify such shares to be freely tradeable in the United States except<br \/>\nin accordance with the terms of the Registration Rights Agreement contemplated<br \/>\nby the Arrangement Agreement. Redback will in good faith expeditiously take all<br \/>\nsuch actions and do all such things as are reasonably necessary or desirable to<br \/>\ncause all Redback Common Shares (or such other shares or securities) to be<br \/>\ndelivered hereunder to be listed, quoted or posted for trading on all stock<br \/>\nexchanges and quotation systems on which outstanding Redback Common Shares (or<br \/>\nsuch other shares or securities) have been listed by Redback and remain listed<br \/>\nand are quoted or posted for trading at such time.<\/p>\n<p>                                       9<\/p>\n<p>2.7      ECONOMIC  EQUIVALENCE. So long as any Exchangeable Shares not owned by<br \/>\nRedback or its Affiliates are outstanding:<\/p>\n<p>         (a)      Redback will not without prior approval of Exchangeco and the<br \/>\n                  prior approval of the holders of the Exchangeable Shares given<br \/>\n                  in accordance with section 10.2 of the Share Provisions:<\/p>\n<p>                  (i)      issue or distribute Redback Common Shares (or<br \/>\n                           securities exchangeable for or convertible into or<br \/>\n                           carrying rights to acquire Redback Common Shares) to<br \/>\n                           the holders of all or substantially all of the then<br \/>\n                           outstanding Redback Common Shares by way of stock<br \/>\n                           dividend or other distribution, other than an issue<br \/>\n                           of Redback Common Shares (or securities exchangeable<br \/>\n                           for or convertible into or carrying rights to acquire<br \/>\n                           Redback Common Shares) to holders of Redback Common<br \/>\n                           Shares who exercise an option to receive dividends in<br \/>\n                           Redback Common Shares (or securities exchangeable for<br \/>\n                           or convertible into or carrying rights to acquire<br \/>\n                           Redback Common Shares) in lieu of receiving cash<br \/>\n                           dividends; or<\/p>\n<p>                  (ii)     issue or distribute rights, options or warrants to<br \/>\n                           the holders of all or substantially all of the then<br \/>\n                           outstanding Redback Common Shares entitling them to<br \/>\n                           subscribe for or to purchase Redback Common Shares<br \/>\n                           (or securities exchangeable for or convertible into<br \/>\n                           or carrying rights to acquire Redback Common Shares);<br \/>\n                           or<\/p>\n<p>                  (iii)    issue or distribute to the holders of all or<br \/>\n                           substantially all of the then outstanding Redback<br \/>\n                           Common Shares (A) shares or securities of Redback of<br \/>\n                           any class other than Redback Common Shares (or<br \/>\n                           securities exchangeable for or convertible into or<br \/>\n                           carrying rights to acquire Redback Common Shares),<br \/>\n                           (B) rights, options or warrants other than those<br \/>\n                           referred to in section 2.7(a)(ii) above, (C)<br \/>\n                           evidences of indebtedness of Redback or (D) assets of<br \/>\n                           Redback,<\/p>\n<p>                  unless the economic equivalent on a per share basis of such<br \/>\n                  rights, options, securities, shares, evidences of indebtedness<br \/>\n                  or other assets is issued or distributed simultaneously to<br \/>\n                  holders of the Exchangeable Shares; provided that, for greater<br \/>\n                  certainty, the above restrictions shall not apply to any<br \/>\n                  securities issued or distributed by Redback in order to give<br \/>\n                  effect to and to consummate the transactions contemplated by,<br \/>\n                  and in accordance with, the Arrangement Agreement and the Plan<br \/>\n                  of Arrangement.<\/p>\n<p>                                       10<\/p>\n<p>         (b)      Redback will not without the prior approval of Exchangeco and<br \/>\n                  the prior approval of the holders of the Exchangeable Shares<br \/>\n                  given in accordance with section 10.2 of the Share Provisions:<\/p>\n<p>                  (i)      subdivide, redivide or change the then outstanding<br \/>\n                           Redback Common Shares into a greater number of<br \/>\n                           Redback Common Shares; or<\/p>\n<p>                  (ii)     reduce, combine, consolidate or change the then<br \/>\n                           outstanding Redback Common Shares into a lesser<br \/>\n                           number of Redback Common Shares; or<\/p>\n<p>                  (iii)    reclassify or otherwise change Redback Common Shares<br \/>\n                           or effect an amalgamation, merger, reorganization or<br \/>\n                           other transaction affecting Redback Common Shares,<\/p>\n<p>                  unless the same or an economically equivalent change shall<br \/>\n                  simultaneously be made to the rights attached to the<br \/>\n                  Exchangeable Shares.<\/p>\n<p>         (c)      Redback will ensure that the record date for any event<br \/>\n                  referred to in section 2.7(a) or (b) above, or (if no record<br \/>\n                  date is applicable for such event) the effective date for any<br \/>\n                  such event, is not less than five Business Days after the date<br \/>\n                  on which such event is declared or announced by Redback (with<br \/>\n                  contemporaneous notification thereof by Redback to<br \/>\n                  Exchangeco).<\/p>\n<p>         (d)      The board of directors of Exchangeco shall determine, in good<br \/>\n                  faith and in its sole discretion, economic equivalence for the<br \/>\n                  purposes of any event referred to in section 2.7(a) or (b)<br \/>\n                  above and each such determination shall be conclusive and<br \/>\n                  binding on Redback. In making such determination, the<br \/>\n                  following factors shall, without excluding other factors<br \/>\n                  determined by the board of directors of Exchangeco to be<br \/>\n                  relevant, be considered by the board of directors of<br \/>\n                  Exchangeco:<\/p>\n<p>                  (i)      in the case of any stock dividend or other<br \/>\n                           distribution payable in Redback Common Shares, the<br \/>\n                           number of such shares issued in proportion to the<br \/>\n                           number of Redback Common Shares previously<br \/>\n                           outstanding;<\/p>\n<p>                  (ii)     in the case of the issuance or distribution of any<br \/>\n                           rights, options or warrants to subscribe for or<br \/>\n                           purchase Redback Common Shares (or securities<br \/>\n                           exchangeable for or convertible into or carrying<br \/>\n                           rights to acquire Redback Common Shares), the<br \/>\n                           relationship between the exercise price of each such<br \/>\n                           right, option or warrant and the Current Market<br \/>\n                           Price;<\/p>\n<p>                                       11<\/p>\n<p>                  (iii)    in the case of the issuance or distribution of any<br \/>\n                           other form of property (including without limitation<br \/>\n                           any shares or securities of Redback of any class<br \/>\n                           other than Redback Common Shares, any rights, options<br \/>\n                           or warrants other than those referred to in section<br \/>\n                           2.7(d)(ii) above, any evidences of indebtedness of<br \/>\n                           Redback or any assets of Redback), the relationship<br \/>\n                           between the fair market value (as determined by the<br \/>\n                           board of directors of Exchangeco in the manner<br \/>\n                           contemplated above) of such property to be issued or<br \/>\n                           distributed with respect to each outstanding Redback<br \/>\n                           Common Share and the Current Market Price;<\/p>\n<p>                  (iv)     in the case of any subdivision, redivision or change<br \/>\n                           of the then outstanding Redback Common Shares into a<br \/>\n                           greater number of Redback Common Shares or the<br \/>\n                           reduction, combination, consolidation or change of<br \/>\n                           the then outstanding Redback Common Shares into a<br \/>\n                           lesser number of Redback Common Shares or any<br \/>\n                           amalgamation, merger, reorganization or other<br \/>\n                           transaction affecting Redback Common Shares, the<br \/>\n                           effect thereof upon the then outstanding Redback<br \/>\n                           Common Shares; and<\/p>\n<p>                  (v)      in all such cases, the general taxation consequences<br \/>\n                           of the relevant event to holders of Exchangeable<br \/>\n                           Shares to the extent that such consequences may<br \/>\n                           differ from the taxation consequences to holders of<br \/>\n                           Redback Common Shares as a result of differences<br \/>\n                           between taxation laws of Canada and the United States<br \/>\n                           (except for any differing consequences arising as a<br \/>\n                           result of differing marginal taxation rates and<br \/>\n                           without regard to the individual circumstances of<br \/>\n                           holders of Exchangeable Shares).<\/p>\n<p>         (e)      Exchangeco agrees that, to the extent required, upon due<br \/>\n                  notice from Redback, Exchangeco will use its best efforts to<br \/>\n                  take or cause to be taken such steps as may be necessary for<br \/>\n                  the purposes of ensuring that appropriate dividends are paid<br \/>\n                  or other distributions are made by Exchangeco, or<br \/>\n                  subdivisions, redivisions or changes are made to the<br \/>\n                  Exchangeable Shares, in order to implement the required<br \/>\n                  economic equivalent with respect to the Redback Common Shares<br \/>\n                  and Exchangeable Shares as provided for in this section 2.7.<\/p>\n<p>2.8      TENDER OFFERS. In the event that a tender offer, share exchange offer,<br \/>\nissuer bid, take-over bid or similar transaction with respect to Redback Common<br \/>\nShares (an &#8220;OFFER&#8221;) is proposed by Redback or is proposed to Redback or its<br \/>\nshareholders and is recommended by the board of directors of Redback, or is<br \/>\notherwise effected or to be effected with the consent or <\/p>\n<p>                                       12<\/p>\n<p>approval of the board of directors of Redback, and the Exchangeable Shares are<br \/>\nnot redeemed by Exchangeco or purchased by Newco pursuant to the Redemption Call<br \/>\nRight, Redback will use its reasonable efforts expeditiously and in good faith<br \/>\nto take all such actions and do all such things as are necessary or desirable to<br \/>\nenable and permit holders of Exchangeable Shares (other than Redback and its<br \/>\nAffiliates) to participate in such Offer to the same extent and on an<br \/>\neconomically equivalent basis as the holders of Redback Common Shares, without<br \/>\ndiscrimination. Without limiting the generality of the foregoing, Redback will<br \/>\nuse its reasonable efforts expeditiously and in good faith to ensure that<br \/>\nholders of Exchangeable Shares may participate in each such Offer without being<br \/>\nrequired to retract Exchangeable Shares as against Exchangeco (or, if so<br \/>\nrequired, to ensure that any such retraction shall be effective only upon, and<br \/>\nshall be conditional upon, the closing of such Offer and only to the extent<br \/>\nnecessary to tender or deposit to the Offer and, in such event, Newco shall be<br \/>\nentitled to exercise the Retraction Call Right without compliance with the<br \/>\nnotice provisions thereof). Nothing herein shall affect the rights of Exchangeco<br \/>\nto redeem (or Newco to purchase pursuant to the Redemption Call Right)<br \/>\nExchangeable Shares, as applicable, in the event of a Redback Control<br \/>\nTransaction.<\/p>\n<p>2.9      OWNERSHIP OF OUTSTANDING SHARES. Without the prior approval of<br \/>\nExchangeco and the prior approval of the holders of the Exchangeable Shares<br \/>\ngiven in accordance with section 10.2 of the Share Provisions, Redback covenants<br \/>\nand agrees in favour of Exchangeco that, as long as any outstanding Exchangeable<br \/>\nShares are owned by any Person other than Redback or any of its Affiliates,<br \/>\nRedback (or any successor to Redback by way of merger, consolidation, or<br \/>\npurchase of all or substantially all of the assets of Redback) will be and<br \/>\nremain the direct or indirect beneficial owner of all issued and outstanding<br \/>\nvoting shares in the capital of Exchangeco and Newco.<\/p>\n<p>2.10     REDBACK AND AFFILIATES NOT TO VOTE EXCHANGEABLE SHARES. Redback<br \/>\ncovenants and agrees that it will appoint and cause to be appointed proxyholders<br \/>\nwith respect to all Exchangeable Shares held by it and its Affiliates for the<br \/>\nsole purpose of attending each meeting of holders of Exchangeable Shares in<br \/>\norder to be counted as part of the quorum for each such meeting. Redback further<br \/>\ncovenants and agrees that it will not, and will cause its Affiliates not to,<br \/>\nexercise any voting rights which may be exercisable by holders of Exchangeable<br \/>\nShares from time to time pursuant to the Share Provisions or pursuant to the<br \/>\nprovisions of the Company Act (or any successor or other corporate statute by<br \/>\nwhich Exchangeco may in the future be governed) with respect to any Exchangeable<br \/>\nShares held by it or by its Affiliates in respect of any matter considered at<br \/>\nany meeting of holders of Exchangeable Shares, including without limitation any<\/p>\n<p>                                       13<\/p>\n<p>approval to be given by the holders of Exchangeable Shares pursuant to Section<br \/>\n10.2 of the Share Provisions.<\/p>\n<p>2.11     RULE 10b-18 PURCHASES. For certainty, nothing contained in this<br \/>\nAgreement, including without limitation the obligations of Redback contained in<br \/>\nSection 2.8 hereof, shall limit the ability of Redback or Exchangeco to make a<br \/>\n&#8220;Rule 10b-18 Purchase&#8221; of Redback Common Shares pursuant to Rule 10b-18 of the<br \/>\nUnited States SECURITIES EXCHANGE ACT of 1934, as amended, or any successor<br \/>\nprovisions thereof.<\/p>\n<p>2.12     DUE PERFORMANCE. On and after the Effective Date, Redback shall duly<br \/>\nand in a timely manner perform all of its obligations provided for in the Plan<br \/>\nof Arrangement, including any obligations that may arise upon the exercise of<br \/>\nRedback&#8217;s rights under the Share Provisions.<\/p>\n<p>2.13     ECONOMIC EQUIVALENCE. Redback hereby acknowledges that any<br \/>\ndetermination of economic equivalence made by the Board of Directors pursuant to<br \/>\nSection 3.5 of the Share Provisions shall, where applicable to Redback, be<br \/>\nconclusive and binding on it.<\/p>\n<p>3.0      REDBACK SUCCESSORS<br \/>\n3.1      CERTAIN REQUIREMENTS IN RESPECT OF COMBINATION, ETC.. Redback shall not<br \/>\nconsummate any transaction (whether by way of reconstruction, reorganization,<br \/>\nconsolidation, merger, transfer, sale, lease or otherwise) whereby all or<br \/>\nsubstantially all of its undertaking, property and assets would become the<br \/>\nproperty of any other person or, in the case of a merger, of the continuing<br \/>\ncorporation resulting therefrom unless:<\/p>\n<p>         (a)      such other person or continuing corporation (the &#8220;REDBACK<br \/>\n                  SUCCESSOR&#8221;) by operation of law, becomes, without more, bound<br \/>\n                  by the terms and provisions of this Agreement or, if not so<br \/>\n                  bound, executes, prior to or contemporaneously with the<br \/>\n                  consummation of such transaction, an agreement supplemental<br \/>\n                  hereto and such other instruments (if any) as are reasonably<br \/>\n                  necessary or advisable to evidence the assumption by the<br \/>\n                  Redback Successor of liability for all moneys payable and<br \/>\n                  property deliverable hereunder and the covenant of such<br \/>\n                  Redback Successor to pay and deliver or cause to be delivered<br \/>\n                  the same and its agreement to observe and perform all the<br \/>\n                  covenants and obligations of Redback under this Agreement; and<\/p>\n<p>         (b)      such transaction shall be upon such terms and conditions as<br \/>\n                  substantially to preserve and not to impair in any material<br \/>\n                  respect any of the rights, duties, powers <\/p>\n<p>                                       14<\/p>\n<p>                  and authorities of the other parties hereunder or the holders<br \/>\n                  of the Exchangeable Shares.<\/p>\n<p>3.2      VESTING OF POWERS IN SUCCESSOR. Whenever the conditions of section 3.1<br \/>\nhave been duly observed and performed, the parties, if required by section 3.1,<br \/>\nshall execute and deliver a supplemental agreement hereto and thereupon the<br \/>\nRedback Successor shall possess and from time to time may exercise each and<br \/>\nevery right and power of Redback under this Agreement in the name of Redback or<br \/>\notherwise and any act or proceeding by any provision of this Agreement required<br \/>\nto be done or performed by the board of directors of Redback or any officers of<br \/>\nRedback may be done and performed with like force and effect by the directors or<br \/>\nofficers of the Redback Successor.<\/p>\n<p>3.3      WHOLLY-OWNED SUBSIDIARIES. Nothing in this Agreement shall be construed<br \/>\nas preventing the amalgamation or merger of any wholly-owned direct or indirect<br \/>\nsubsidiary of Redback with or into Redback or another wholly-owned direct or<br \/>\nindirect subsidiary of Redback or the winding-up, liquidation or dissolution of<br \/>\nany wholly-owned subsidiary of Redback, other than Exchangeco or Newco, provided<br \/>\nthat all of the assets of such subsidiary are transferred to Redback or another<br \/>\nwholly-owned direct or indirect subsidiary of Redback and any such transactions<br \/>\nare expressly permitted by this section 3.0.<\/p>\n<p>4.0      GENERAL<\/p>\n<p>4.1      TERM. This Agreement shall come into force and be effective as of the<br \/>\ndate hereof and shall terminate and be of no further force and effect at such<br \/>\ntime as no Exchangeable Shares (or securities or rights convertible into or<br \/>\nexchangeable for or carrying rights to acquire Exchangeable Shares) are held by<br \/>\nany person or entity other than Redback and any of its Affiliates.<\/p>\n<p>4.2      CHANGES IN CAPITAL OF REDBACK AND EXCHANGECO. Notwithstanding the<br \/>\nprovisions of section 4.4 hereof, at all times after the occurrence of any event<br \/>\ncontemplated by sections 2.7 and 2.8 hereof or otherwise, as a result of which<br \/>\neither Redback Common Shares or the Exchangeable Shares or both are in any way<br \/>\nchanged, this Agreement shall forthwith be amended and modified as necessary in<br \/>\norder that it shall apply with full force and effect, MUTATIS MUTANDIS, to all<br \/>\nnew securities into which Redback Common Shares or the Exchangeable Shares or<br \/>\nboth are so changed and the parties hereto shall execute and deliver an<br \/>\nagreement in writing giving effect to and evidencing such necessary amendments<br \/>\nand modifications.<\/p>\n<p>                                       15<\/p>\n<p>4.3      SEVERABILITY. If any term or other provision of this Agreement is<br \/>\ninvalid, illegal or incapable of being enforced by any rule or law, or public<br \/>\npolicy, all other conditions and provisions of this Agreement will nevertheless<br \/>\nremain in full force and effect so long as the economic or legal substance of<br \/>\nthe transactions contemplated by this Agreement is not affected in any manner<br \/>\nmaterially adverse to any party. Upon the determination that any term or other<br \/>\nprovision is invalid, illegal or incapable of being enforced, the parties to<br \/>\nthis Agreement will negotiate in good faith to modify this Agreement so as to<br \/>\neffect the original intent of the parties as closely as possible in an<br \/>\nacceptable manner to the end that the transactions contemplated by this<br \/>\nAgreement are fulfilled to the fullest extent possible.<\/p>\n<p>4.4      AMENDMENTS, MODIFICATIONS. This Agreement may not be amended or<br \/>\nmodified except by an agreement in writing executed by Exchangeco, Newco and<br \/>\nRedback and approved by the holders of the Exchangeable Shares (other than<br \/>\nRedback or any Affiliates of Redback) in accordance with section 10.2 of the<br \/>\nShare Provisions.<\/p>\n<p>4.5      MINISTERIAL AMENDMENTS. Notwithstanding the provisions of section 4.4,<br \/>\nthe parties to this Agreement may in writing at any time and from time to time,<br \/>\nwithout the approval of the holders of the Exchangeable Shares, amend or modify<br \/>\nthis Agreement for the purposes of:<\/p>\n<p>         (a)      adding to the covenants of any or all parties provided that<br \/>\n                  the board of directors of each of Exchangeco, Newco and<br \/>\n                  Redback shall be of the good faith opinion that such additions<br \/>\n                  will not be prejudicial to the rights or interests of the<br \/>\n                  holders of the Exchangeable Shares;<\/p>\n<p>         (b)      making such amendments or modifications not inconsistent with<br \/>\n                  this Agreement as may be necessary or desirable with respect<br \/>\n                  to matters or questions which, in the good faith opinion of<br \/>\n                  the board of directors of each of Exchangeco, Newco and<br \/>\n                  Redback, it may be expedient to make, provided that each such<br \/>\n                  board of directors shall be of the good faith opinion that<br \/>\n                  such amendments or modifications will not be prejudicial to<br \/>\n                  the rights or interests of the holders of the Exchangeable<br \/>\n                  Shares; or<\/p>\n<p>         (c)      making such changes or corrections which, on the advice of<br \/>\n                  counsel to Exchangeco, Newco and Redback, are required for the<br \/>\n                  purpose of curing or correcting any ambiguity or defect or<br \/>\n                  inconsistent provision or clerical omission or mistake or<br \/>\n                  manifest error, provided that the Boards of Directors of each<br \/>\n                  of Exchangeco, Newco and Redback shall be of the good faith<br \/>\n                  opinion that such <\/p>\n<p>                                       16<\/p>\n<p>                  changes or corrections will not be prejudicial to the rights<br \/>\n                  or interests of the holders of the Exchangeable Shares.<\/p>\n<p>4.6      MEETING TO CONSIDER AMENDMENTS. Exchangeco, at the request of Redback,<br \/>\nshall call a meeting or meetings of the holders of the Exchangeable Shares for<br \/>\nthe purpose of considering any proposed amendment or modification requiring<br \/>\napproval pursuant to section 4.4 hereof. Any such meeting or meetings shall be<br \/>\ncalled and held in accordance with the articles of Exchangeco, the Share<br \/>\nProvisions and all applicable laws.<\/p>\n<p>4.7      AMENDMENTS  ONLY IN WRITING. No amendment to or modification or waiver<br \/>\nof any of the provisions of this Agreement otherwise permitted hereunder shall<br \/>\nbe effective unless made in writing and signed by all of the parties hereto.<\/p>\n<p>4.8      ENUREMENT. This Agreement shall be binding upon and enure to the<br \/>\nbenefit of the parties hereto and their respective successors and assigns.<\/p>\n<p>4.9      NOTICES TO PARTIES. All notices and other communications between the<br \/>\nparties to this Agreement shall be in writing and shall be deemed to have been<br \/>\ngiven if delivered personally or by confirmed telecopy to the parties at the<br \/>\nfollowing address (or at such other address for any such party as shall be<br \/>\nspecified in like notice):<\/p>\n<p>                  Redback Networks Inc.<br \/>\n                  1195 Borregas Avenue<br \/>\n                  Sunnyvale, CA  94089<br \/>\n                  ATTENTION:     General Counsel<br \/>\n                  Facsimile:     (408) 571-5195<\/p>\n<p>                  with a copy to:<\/p>\n<p>                  Gunderson Dettmer LLP<br \/>\n                  155 Constitution Drive<br \/>\n                  Menlo Park, California  94025<br \/>\n                  ATTENTION:     Gregory K. Miller<br \/>\n                  Facsimile:     (650) 321-2800<\/p>\n<p>                                       17<\/p>\n<p>                  and to:<\/p>\n<p>                  Fraser Milner Casgrain<br \/>\n                  1500 &#8211; 1040 West Georgia Street<br \/>\n                  Vancouver, British Columbia  V6E 4H8<br \/>\n                  ATTENTION:     Gary R. Sollis<br \/>\n                  Facsimile:     (604) 683-5214<\/p>\n<p>         Any notice or other communication given personally shall be deemed to<br \/>\nhave been given and received upon delivery thereof and if given by telecopy<br \/>\nshall be deemed to have been given and received on the date of confirmed receipt<br \/>\nthereof unless such day is not a Business Day in which case it shall be deemed<br \/>\nto have been given and received upon the immediately following Business Day.<\/p>\n<p>4.10     COUNTERPARTS. This Agreement may be executed in counterparts, each of<br \/>\nwhich shall be deemed an original, and all of which taken together shall<br \/>\nconstitute one and the same instrument.<\/p>\n<p>4.11     JURISDICTION. This Agreement shall be construed and enforced in<br \/>\naccordance with the laws of the Province of British Columbia and the federal<br \/>\nlaws of Canada applicable therein.<\/p>\n<p>4.12     ATTORNMENT. Each of Redback and Newco agrees that any action or<br \/>\nproceeding arising out of or relating to this Agreement may be instituted in the<br \/>\ncourts of British Columbia, waives any objection which it may have now or<br \/>\nhereafter to the venue of any such action or proceeding, irrevocably submits to<br \/>\nthe jurisdiction of the said courts in any such action or proceeding, agrees to<br \/>\nbe bound by any judgment of the said courts and not to seek, and hereby waives,<br \/>\nany review of the merits of any such judgment by the courts of any other<br \/>\njurisdiction and hereby appoints Exchangeco at its registered office in the<br \/>\nProvince of British Columbia as attorney for service of process.<\/p>\n<p>                                       18<\/p>\n<p>4.13     GUARANTY AND ASSIGNMENT. Redback hereby unconditionally and irrevocably<br \/>\nguarantees the full and punctual performance of all of Newco&#8217;s obligations<br \/>\nhereunder. Newco may assign all or any portion of its rights and obligations<br \/>\nhereunder to Redback or any Affiliate of Redback without the consent of either<br \/>\nof the other parties hereto, provided that Redback or such Affiliate, as the<br \/>\ncase may be, enters into a supplemental agreement reflecting such assignment, in<br \/>\nform and content acceptable to the other parties, acting reasonably.<\/p>\n<p>         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be<br \/>\nduly executed as of the date first above written.<\/p>\n<p>                          REDBACK NETWORKS INC.<\/p>\n<p>                          Per:<br \/>\n                                 &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br \/>\n                                 Authorized Signatory<\/p>\n<p>                          610380 B.C. INC.<\/p>\n<p>                          Per:<br \/>\n                                 &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br \/>\n                                 Authorized Signatory<\/p>\n<p>                          610381 B.C. INC.<\/p>\n<p>                          Per:<br \/>\n                                 &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br \/>\n                                 Authorized Signatory<\/p>\n<p>                                       19<\/p>\n<p>                                    EXHIBIT H<\/p>\n<p>                          REGISTRATION RIGHTS AGREEMENT<\/p>\n<p>                              REDBACK NETWORKS INC.<\/p>\n<p>                                     o, 2000<\/p>\n<p>                                TABLE OF CONTENTS<\/p>\n<p>1.  Registration Rights&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..1<br \/>\n         1.1  Definitions&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;2<br \/>\n         1.2  Shelf Registration&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..3<br \/>\n         1.3  Demand Registration&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.4<br \/>\n         1.4  Obligations of the Company&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;5<br \/>\n         1.5  Furnish Information&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.7<br \/>\n         1.6  Expenses of Demand Registration&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.7<br \/>\n         1.7  Delay of Registration&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..7<br \/>\n         1.8  Indemnification&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..7<br \/>\n         1.9  Reports Under Securities Exchange Act of 1934&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..9<br \/>\n         1.10  No Assignment of Registration Rights&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;10<br \/>\n         1.11  Termination of Registration Rights&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..10<\/p>\n<p>2.  Miscellaneous&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.10<br \/>\n         2.1  Successors and Assigns&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;10<br \/>\n         2.2  Governing Law&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;10<br \/>\n         2.3  Counterparts&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.10<br \/>\n         2.4  Titles and Subtitles&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..10<br \/>\n         2.5  Notices&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;11<br \/>\n         2.6  Expenses&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..11<br \/>\n         2.7  Amendments and Waivers&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;11<br \/>\n         2.8  Severability&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.12<br \/>\n         2.9  Aggregation of  Stock&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.12<br \/>\n         2.10  Entire Agreement&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..12<\/p>\n<p>Exhibit A         Shareholder Information Questionnaire<\/p>\n<p>                                       i<\/p>\n<p>                          REGISTRATION RIGHTS AGREEMENT<\/p>\n<p>                  This REGISTRATION RIGHTS AGREEMENT is made as of o, 2000 (this<br \/>\n&#8220;Agreement&#8221;), by and among Redback Networks Inc., a Delaware corporation (the<br \/>\n&#8220;Company&#8221;), and Andrew Waitman acting as agent (the &#8220;Shareholders&#8217; Agent&#8221;) to<br \/>\nthe shareholders (each a &#8220;Shareholder&#8221; and collectively, the &#8220;Shareholders&#8221;) of<br \/>\nAbatis Systems Corporation, a corporation existing under the federal laws of<br \/>\nCanada (&#8220;Abatis&#8221;).<\/p>\n<p>                                    RECITALS<\/p>\n<p>                  WHEREAS, the Company, Abatis and 610381 B.C. Inc., a company<br \/>\nexisting under the laws of the Province of British Columbia and wholly owned<br \/>\nsubsidiary of the Company (&#8220;Exchangeco&#8221;), are parties to that certain<br \/>\nArrangement Agreement made as of July 30, 2000 (together with all exhibits,<br \/>\nschedules, supplements and any amendments thereto, the &#8220;Arrangement Agreement&#8221;)<br \/>\npursuant to which the Company will acquire Abatis (the &#8220;Arrangement&#8221;);<\/p>\n<p>                  WHEREAS, the Company, Abatis, Exchangeco, 610380 B.C. Inc., a<br \/>\ncompany existing under the laws of the Province of British Columbia and a wholly<br \/>\nowned subsidiary of the Company (&#8220;Newco&#8221;), and the Shareholders are bound to<br \/>\neffect the Arrangement upon the effectiveness of the related Plan of Arrangement<br \/>\n(together with all exhibits, schedules, supplements and any amendments thereto,<br \/>\nthe &#8220;Plan of Arrangement&#8221;);<\/p>\n<p>                  WHEREAS, the execution and delivery of this Agreement is a<br \/>\ncondition to the closing of the Arrangement;<\/p>\n<p>                  WHEREAS, the Arrangement Agreement and the Plan of Arrangement<br \/>\n(collectively, the &#8220;Arrangement Documents&#8221;) provide that, as of the Effective<br \/>\nDate, each of the shares of Abatis held by the Shareholders will be exchanged<br \/>\nfor either (i) shares of the Common Stock of the Company or (ii) non-voting<br \/>\nexchangeable shares of Exchangeco exchangeable into the Common Stock of the<br \/>\nCompany (&#8220;Exchangeable Shares&#8221;);<\/p>\n<p>                  WHEREAS, pursuant to the Plan of Arrangement, each of the<br \/>\nShareholders will be deemed to have irrevocably appointed the Shareholders&#8217;<br \/>\nAgent, as the agent of each such Shareholder, to execute and deliver this<br \/>\nAgreement; and<\/p>\n<p>                  WHEREAS, the shares of Common Stock of the Company issued to<br \/>\nthe Shareholders in exchange for Exchangeable Shares will be granted<br \/>\nregistration rights as set forth herein.<\/p>\n<p>                  THIS AGREEMENT WITNESSETH THAT in consideration of the<br \/>\nrespective covenants and agreements herein contained and for other good and<br \/>\nvaluable consideration (the receipt and sufficiency of which is hereby<br \/>\nacknowledged by each party), the parties hereby covenant and agree as follows:<\/p>\n<p>                  1.       REGISTRATION RIGHTS. The Company covenants and agrees<br \/>\n                           as follows:<\/p>\n<p>                  1.1      DEFINITIONS. For purposes of this Section 1:<\/p>\n<p>                  (a)      The term &#8220;Act&#8221; means the Securities Act of 1933, as<br \/>\namended.<\/p>\n<p>                  (b)      The term &#8220;Form S-3&#8221; means such form under the Act as<br \/>\nin effect on the date hereof or any registration form under the Act subsequently<br \/>\nadopted by the SEC that permits inclusion or incorporation of substantial<br \/>\ninformation by reference to other documents filed by the Company with the SEC.<\/p>\n<p>                  (c)      The term &#8220;1934 Act&#8221; shall mean the Securities<br \/>\nExchange Act of 1934, as amended.<\/p>\n<p>                  (d)      The term &#8220;No-Action Letter&#8221; shall mean a letter<br \/>\nreceived from the SEC stating that the SEC would not recommend an enforcement<br \/>\naction with respect to certain substantive issues addressed therein.<\/p>\n<p>                  (e)      The terms &#8220;register,&#8221; &#8220;registered,&#8221; and<br \/>\n&#8220;registration&#8221; refer to a registration effected by preparing and filing a<br \/>\nregistration statement or similar document in compliance with the Act, and the<br \/>\ndeclaration or ordering of effectiveness of such registration statement or<br \/>\ndocument.<\/p>\n<p>                  (f)      The term &#8220;Registrable Securities&#8221; means (i) the<br \/>\nCommon Stock of the Company issuable or issued to the Shareholders upon exchange<br \/>\nof the Exchangeable Shares, and (ii) any Common Stock of the Company issued as<br \/>\n(or issuable upon the conversion or exercise of any warrant, right or other<br \/>\nsecurity that is issued as) a dividend or other distribution with respect to, or<br \/>\nin exchange for, or in replacement of the shares referenced in (i) above.<\/p>\n<p>                  (g)      The number of shares of &#8220;Registrable Securities then<br \/>\noutstanding&#8221; shall be determined by the number of shares of Common Stock<br \/>\noutstanding that are, and the number of shares of Common Stock issuable pursuant<br \/>\nto then outstanding Exchangeable Shares that are, Registrable Securities.<\/p>\n<p>                  (h)      The term &#8220;SEC&#8221; shall mean the Securities and Exchange<br \/>\nCommission.<\/p>\n<p>                  (i)      The term &#8220;Shelf Registration&#8221; means a registration<br \/>\neffected pursuant to Section 1.2 hereof.<\/p>\n<p>                  (j)      The term &#8220;Shelf Registration Statement&#8221; means a<br \/>\n&#8220;shelf&#8221; registration statement filed under the Act providing for the<br \/>\nregistration of, and the sale on a continuous or delayed basis by the<br \/>\nShareholders of, all of the Registrable Securities pursuant to Rule 415 under<br \/>\nthe Act and\/or any similar rule that may be adopted by the SEC, filed by the<br \/>\nCompany pursuant to the provisions of Section 1.2 of this Agreement, including<br \/>\nthe prospectus contained therein, any amendments and supplements to such<br \/>\nregistration statement, including post-effective amendments, and all exhibits<br \/>\nand all material incorporated by reference in such registration statement.<\/p>\n<p>                  (k)      Capitalized terms not otherwise defined herein shall<br \/>\nhave the same meanings ascribed to them in the Arrangement Documents.<\/p>\n<p>                                       2<\/p>\n<p>                  1.2      SHELF REGISTRATION.<\/p>\n<p>                  (a)      The Company shall use reasonable best efforts to<br \/>\nprepare and file, as soon as practicable, but no later than 60 calendar days<br \/>\nfollowing the Effective Date, a Shelf Registration Statement on the appropriate<br \/>\nform and any related qualification or compliance with respect to all of the<br \/>\nRegistrable Securities owned by the Shareholders so as to permit or facilitate<br \/>\nthe sale and distribution of the Shareholders&#8217; Registrable Securities. The<br \/>\nCompany shall use all reasonable best efforts to cause such Shelf Registration<br \/>\nStatement to become effective, and, subject to the provisions below, use<br \/>\ncommercially reasonable efforts to keep such Shelf Registration Statement<br \/>\neffective until January 31, 2003 (the &#8220;Shelf Termination Date&#8221;); provided,<br \/>\nhowever, if the Company, on the Shelf Termination Date, has another effective<br \/>\nshelf registration statement on file unrelated to the Registrable Securities,<br \/>\nthen the Company shall use all commercially reasonable efforts to extend the<br \/>\nShelf Termination Date to terminate concurrently with the termination date of<br \/>\nsuch other effective shelf registration statement (the &#8220;Extended Shelf<br \/>\nTermination Date&#8221;). Notwithstanding the foregoing, no Shareholder shall be<br \/>\nentitled to be named as a selling securityholder in the Shelf Registration<br \/>\nStatement or to use the prospectus forming a part thereof for resales of<br \/>\nRegistrable Securities unless such Shareholder shall furnish to the Company the<br \/>\ninformation requested on EXHIBIT A hereto. Notwithstanding the foregoing, the<br \/>\nCompany shall not be obligated to effect any such registration, qualification or<br \/>\ncompliance, pursuant to this Section 1.2:<\/p>\n<p>                           (i)      for more than one year after the Effective<br \/>\nDate, if a No-Action Letter is obtained by the Company confirming that the<br \/>\nholding period under Rule 144(d) for the Registrable Shares to be received on<br \/>\nthe exchange of the Exchangeable Shares will be treated as having commenced on<br \/>\nthe date on which the Exchangeable Shares were first acquired by the<br \/>\nShareholders;<\/p>\n<p>                           (ii)     if the Company shall furnish to the<br \/>\nShareholders a certificate signed by the president of the Company stating that<br \/>\nin the good faith judgment of the board of directors of the Company, it would be<br \/>\nseriously detrimental to the Company and its shareholders for such Shelf<br \/>\nRegistration to be effected at such time, in which event the Company shall have<br \/>\nthe right to defer the filing of the Shelf Registration Statement for a period<br \/>\nof not more than sixty (60) days after such date, provided that such right to<br \/>\ndefer filing shall be exercised by the Company not more than once in any twelve<br \/>\n(12) month period; or<\/p>\n<p>                           (iii)    in any jurisdiction in which the Company<br \/>\nwould be required to execute a general consent to service of process in<br \/>\neffecting such registration, qualification or compliance.<\/p>\n<p>                  (b)      Subject to the foregoing, the Company shall effect<br \/>\nsuch registration, qualification, or compliance (including, without limitation,<br \/>\nthe execution of an undertaking to file post-effective amendments, appropriate<br \/>\nqualification under applicable blue sky (except that in no event shall the<br \/>\nCompany be required to qualify to do business as a foreign corporation in any<br \/>\njurisdiction where it would not, but for the requirements of this paragraph (c),<br \/>\nbe required to be so qualified, to subject itself to taxation in any such<br \/>\njurisdiction or to consent to general service of process in any such<br \/>\njurisdiction) or other state securities laws and appropriate compliance with<br \/>\napplicable regulations issued under the Securities Act and any other<\/p>\n<p>                                       3<\/p>\n<p>governmental requirements or regulations) covering the Registrable Securities so<br \/>\nrequested to be registered as soon as practicable after receipt of the request<br \/>\nor requests of the Shareholders.<\/p>\n<p>                  (c)      It shall be a condition precedent to the obligations<br \/>\nof the Company to take any action pursuant to this Section 1.2 with respect to<br \/>\nthe Registrable Securities of a Shareholder that such Shareholder shall furnish<br \/>\nto the Company the information requested on EXHIBIT A hereto, which shall<br \/>\ninclude such information regarding itself, himself or herself, the Registrable<br \/>\nSecurities held by it, him or her, and the intended method of disposition of<br \/>\nsuch securities, and such other information as shall be reasonably requested by<br \/>\nthe Company and required to effect the registration of the Registrable<br \/>\nSecurities.<\/p>\n<p>                  1.3      DEMAND REGISTRATION.<\/p>\n<p>                  (a)      Subject to the limitations of subsection 1.3(b)<br \/>\nhereof, if the Company shall receive at any time following the later of (i) six<br \/>\nmonths after the Shelf Termination Date (or, if applicable, the Extended Shelf<br \/>\nTermination Date), or (ii) the 31st of December following the Shelf Termination<br \/>\nDate (or, if applicable, the Extended Shelf Termination Date), a written request<br \/>\nfrom the Shareholders of a majority of the Registrable Securities then<br \/>\noutstanding (the &#8220;Initiating Shareholders&#8221;) that the Company file a registration<br \/>\nstatement on Form S-3 or other form if Form S-3 is not available covering the<br \/>\nregistration of at least fifty percent (50%) of the Registrable Securities then<br \/>\noutstanding and in no event less than an aggregate amount of Registrable<br \/>\nSecurities equal to the lesser of either (i) 500,000 shares of Registrable<br \/>\nSecurities (as adjusted from time to time for stock splits and stock dividends),<br \/>\nor (ii) that aggregate number of shares of Registrable Securities with an<br \/>\nanticipated aggregate offering price of at least $50,000,000, then the Company<br \/>\nshall:<\/p>\n<p>                           (i)      promptly give written notice of the proposed<br \/>\nregistration, and any related qualification or compliance, to all other<br \/>\nShareholders;<\/p>\n<p>                           (ii)     use all reasonable best efforts to effect,<br \/>\nas soon as practicable, such registration and all such qualifications and<br \/>\ncompliances as may be so requested and as would permit or facilitate the sale<br \/>\nand distribution of all or such portion of such Shareholders&#8217; Registrable<br \/>\nSecurities as are specified in such request, together with all or such portion<br \/>\nof the Registrable Securities of any other Shareholders joining in such request<br \/>\nas are specified in a written request given within thirty (30) days after<br \/>\nreceipt of such written notice from the Company, provided, however, that the<br \/>\nCompany shall not be obligated to effect any such registration, qualification or<br \/>\ncompliance, pursuant to this Section 1.3:<\/p>\n<p>                                    (1)      if the Company has, within the<br \/>\ntwelve (12) month period preceding the date of such request, already effected<br \/>\none registration for the Shareholders pursuant to this Section 1.3; or<\/p>\n<p>                                    (2)      in any particular jurisdiction in<br \/>\nwhich the Company would be required to qualify to do business or to execute a<br \/>\ngeneral consent to service of process in effecting such registration,<br \/>\nqualification or compliance.<\/p>\n<p>                                       4<\/p>\n<p>                           (iii)    Subject to the foregoing, the Company shall<br \/>\nfile a registration statement covering the Registrable Securities and other<br \/>\nsecurities so requested to be registered as soon as practicable after receipt of<br \/>\nthe request or requests of the Shareholders.<\/p>\n<p>                  (b)      Notwithstanding the foregoing, if the Company shall<br \/>\nfurnish to Shareholders requesting a registration statement pursuant to this<br \/>\nSection 1.3, a certificate signed by the Chief Executive Officer of the Company<br \/>\nstating that in the good faith judgment of the Board of Directors of the<br \/>\nCompany, it would be seriously detrimental to the Company and its stockholders<br \/>\nfor such registration statement to be filed and it is therefore essential to<br \/>\ndefer the filing of such registration statement, the Company shall have the<br \/>\nright to defer taking action with respect to such filing for a period of not to<br \/>\nexceed sixty (60) days in any 90-day period or an aggregate of 120 days in any<br \/>\n365 day period.<\/p>\n<p>                  1.4      OBLIGATIONS OF THE COMPANY. Whenever required under<br \/>\nthis Section 1 to effect the registration of any Registrable Securities, the<br \/>\nCompany shall:<\/p>\n<p>                  (a)      With respect to Section 1.2 herein, prepare and file<br \/>\nwith the SEC, a Shelf Registration Statement on the appropriate form with<br \/>\nrespect to such Registrable Securities and use all reasonable best efforts to<br \/>\ncause such Shelf Registration Statement to become effective, and, subject to the<br \/>\nprovisions below, use reasonable best efforts to, keep such Shelf Registration<br \/>\nStatement effective until the Shelf Termination Date, or, if applicable, the<br \/>\nExtended Shelf Termination Date. Sixty (60) days prior to the Shelf Termination<br \/>\nDate or, if applicable, the Extended Shelf Termination Date, the Company agrees<br \/>\nto provide each Shareholder of Registrable Securities then outstanding written<br \/>\nnotice of the pending termination of the Shelf Registration Statement. If at any<br \/>\ntime after a Shelf Registration Statement becomes effective under Section 1.2,<br \/>\nthe Company advises the Shareholders in writing that the Shelf Registration<br \/>\nStatement shall contain any untrue statement of a material fact or omit to state<br \/>\nany material fact required to be stated therein or necessary to make the<br \/>\nstatements therein not misleading, or any prospectus comprising a part of such<br \/>\nShelf Registration Statement shall contain any untrue statement of a material<br \/>\nfact or omit to state any material fact required to be stated therein or<br \/>\nnecessary to make the statements therein, in light of the circumstances under<br \/>\nwhich they were made, not misleading or the occurrence or existence of any<br \/>\npending corporate development that, in the reasonable discretion of the Company,<br \/>\nmakes it appropriate to suspend the availability of the Shelf Registration<br \/>\nStatement and the related prospectus, the Company shall give notice to the<br \/>\nShareholders that the availability of the Shelf Registration Statement is<br \/>\nsuspended (which notice need not specify the nature of the event giving rise to<br \/>\nsuch suspension) and the Shareholders shall suspend any further sale of<br \/>\nRegistrable Securities pursuant to the Shelf Registration Statement for a period<br \/>\nnot to exceed sixty (60) days in any 90-day period or an aggregate of 120 days<br \/>\nin any 365 day period; provided, however, that the Company shall not be allowed<br \/>\nto suspend the use of the Shelf Registration Statement for any period of time<br \/>\nending on the Shelf Termination Date unless the Shelf Registration Termination<br \/>\nDate is extended for such period of time not to exceed sixty (60) days.<\/p>\n<p>                  (b)      With respect to Section 1.3, prepare and file with<br \/>\nthe SEC a registration statement on the appropriate form with respect to such<br \/>\nRegistrable Securities and use all reasonable best efforts to cause such<br \/>\nregistration statement to become effective, and, upon the request of the<br \/>\nShareholders of a majority of the Registrable Securities registered thereunder,<br \/>\nkeep <\/p>\n<p>                                       5<\/p>\n<p>such registration statement effective for a period of thirty (30) days or,<br \/>\nif earlier, until the distribution contemplated in the Registration Statement<br \/>\nhas been completed.<\/p>\n<p>                  (c)      Prepare and file with the SEC such amendments and<br \/>\nsupplements to such registration statement and the prospectus used in connection<br \/>\nwith such registration statement as may be necessary to comply with the<br \/>\nprovisions of the Act with respect to the disposition of all securities covered<br \/>\nby such registration statement.<\/p>\n<p>                  (d)      Furnish to the Shareholders such numbers of copies of<br \/>\na prospectus, including a preliminary prospectus, in conformity with the<br \/>\nrequirements of the Act, and such other documents as they may reasonably request<br \/>\nin order to facilitate the disposition of Registrable Securities owned by them.<\/p>\n<p>                  (e)      Use reasonable best efforts to register and qualify<br \/>\nthe securities covered by such registration statement under such other<br \/>\nsecurities or blue sky laws of such jurisdictions as shall be reasonably<br \/>\nrequested by the Shareholders; provided that the Company shall not be required<br \/>\nin connection therewith or as a condition thereto to qualify to do business or<br \/>\nto file a general consent to service of process in any such states or<br \/>\njurisdictions.<\/p>\n<p>                  (f)      Use reasonable best efforts to cause all such<br \/>\nRegistrable Securities registered hereunder to be listed on each securities<br \/>\nexchange on which similar securities issued by the Company are then listed and<br \/>\nto pay for all fees associated with such listing.<\/p>\n<p>                  (g)      The Company shall notify each Shareholder if the SEC<br \/>\nadvises the Company that the exchange of the Exchangeable Shares for Registrable<br \/>\nSecurities is required as a condition to the filing of any registration<br \/>\nstatement under Section 1. If such exchange is required, the Company&#8217;s<br \/>\nobligation to register the Registrable Securities under Section 1 shall be<br \/>\nconditioned upon the exchange occurring prior to the filing of the Registration<br \/>\nStatement. If a registration statement must be withdrawn because the SEC takes<br \/>\nthe position that the exchange must be made before filing, the expenses of such<br \/>\nprior filing shall be borne by the Company pursuant to Section 1.6 and such<br \/>\nprior filing shall not be deemed to satisfy the Company&#8217;s obligation to effect a<br \/>\nregistration under Section 1.3.<\/p>\n<p>                  (h)      The Company shall be obligated to reissue promptly<br \/>\nunlegended certificates at the request of any Shareholder thereof if the<br \/>\nShareholder shall have obtained an opinion of counsel (which counsel may be<br \/>\ncounsel to the Company) reasonably acceptable to the Company to the effect that<br \/>\nsuch Registrable Securities may lawfully be disposed of without registration,<br \/>\nqualification or legend and any other additional representations or<br \/>\ncertifications reasonably requested by the Company, including, if applicable,<br \/>\nreceipt of a standard broker&#8217;s representation letter and other representations<br \/>\ncustomarily relied upon by transfer agents in Rule 144 sales. Further, the<br \/>\nCompany shall cause its transfer agent to transfer promptly any Registrable<br \/>\nSecurities being transferred pursuant to Rule 144 upon receipt of a standard<br \/>\nbroker&#8217;s representation letter and other representations customarily relied upon<br \/>\nby transfer agents in Rule 144 sales.<\/p>\n<p>                                       6<\/p>\n<p>                  1.5      FURNISH INFORMATION.<\/p>\n<p>                  (a)      It shall be a condition precedent to the obligations<br \/>\nof the Company to take any action pursuant to this Section 1 with respect to the<br \/>\nRegistrable Securities of any selling Shareholder that such Shareholder shall<br \/>\nfurnish to the Company such information regarding itself, the Registrable<br \/>\nSecurities held by it, and the intended method of disposition of such securities<br \/>\nas shall be required to effect the registration of such Shareholder&#8217;s<br \/>\nRegistrable Securities.<\/p>\n<p>                  (b)      The Company shall have no obligation with respect to<br \/>\nany registration requested pursuant to Section 1.3 if, due to the operation of<br \/>\nsubsection 1.5(a), the number of shares or the anticipated aggregate offering<br \/>\nprice of the Registrable Securities to be included in the registration does not<br \/>\nequal or exceed the number of shares or the anticipated aggregate offering price<br \/>\nrequired to originally trigger the Company&#8217;s obligation to initiate such<br \/>\nregistration as specified in subsection 1.3(a).<\/p>\n<p>                  1.6      EXPENSES OF DEMAND REGISTRATION. All expenses other<br \/>\nthan underwriting discounts and commissions incurred in connection with<br \/>\nregistrations, filings or qualifications pursuant to Section 1, including<br \/>\n(without limitation) all registration, filing and qualification fees, printers&#8217;<br \/>\nand accounting fees, and fees and disbursements of counsel for the Company shall<br \/>\nbe borne by the Company; provided, however, that the Company shall not be<br \/>\nrequired to pay for any expenses of any registration proceeding begun pursuant<br \/>\nto Section 1.3 if the registration request is subsequently withdrawn at the<br \/>\nrequest of the Shareholders of a majority of the Registrable Securities to be<br \/>\nregistered (in which case all participating Shareholders shall bear such<br \/>\nexpenses), unless the Shareholders of a majority of the Registrable Securities<br \/>\nagree to forfeit their right to one such registration pursuant to Section 1.3.<\/p>\n<p>                  1.7      DELAY OF REGISTRATION . No Shareholder shall have any<br \/>\nright to obtain or seek an injunction restraining or otherwise delaying any such<br \/>\nregistration as the result of any controversy that might arise with respect to<br \/>\nthe interpretation or implementation of this Section 1.<\/p>\n<p>                  1.8      INDEMNIFICATION. In the event any Registrable<br \/>\nSecurities are included in a registration statement under this Section 1:<\/p>\n<p>                  (a)      To the extent permitted by law, the Company will<br \/>\nindemnify and hold harmless each Shareholder, any underwriter (as defined in the<br \/>\nAct) for such Shareholder, and each person, if any, who controls such<br \/>\nShareholder or underwriter within the meaning of the Act or the 1934 Act,<br \/>\nagainst any losses, claims, damages, or liabilities (joint or several) to which<br \/>\nthey may become subject under the Act, the 1934 Act or other federal or state<br \/>\nlaw, insofar as such losses, claims, damages, or liabilities (or actions in<br \/>\nrespect thereof) arise out of or are based upon any of the following statements,<br \/>\nomissions or violations (collectively, a &#8220;Violation&#8221;): (i) any untrue statement<br \/>\nor alleged untrue statement of a material fact contained in such registration<br \/>\nstatement, including any preliminary prospectus or final prospectus contained<br \/>\ntherein or any amendments or supplements thereto, (ii) the omission or alleged<br \/>\nomission to state therein a material fact required to be stated therein, or<br \/>\nnecessary to make the statements therein not misleading, or (iii) any violation<br \/>\nor alleged violation by the Company of the Act, the 1934 Act, <\/p>\n<p>                                       7<\/p>\n<p>any state securities law or any rule or regulation promulgated under the Act,<br \/>\nthe 1934 Act or any state securities law; and the Company will pay to each such<br \/>\nShareholder, underwriter or controlling person, as incurred, any legal or other<br \/>\nexpenses reasonably incurred by them in connection with investigating or<br \/>\ndefending any such loss, claim, damage, liability or action; provided, however,<br \/>\nthat the indemnity agreement contained in this subsection 1.8(a) shall not apply<br \/>\nto amounts paid in settlement of any such loss, claim, damage, liability or<br \/>\naction if such settlement is effected without the consent of the Company (which<br \/>\nconsent shall not be unreasonably withheld), nor shall the Company be liable in<br \/>\nany such case for any such loss, claim, damage, liability or action to the<br \/>\nextent that it arises out of or is based upon a Violation that occurs in<br \/>\nreliance upon and in conformity with written information furnished expressly for<br \/>\nuse in connection with such registration by any such Shareholder, underwriter or<br \/>\ncontrolling person.<\/p>\n<p>                  (b)      To the extent permitted by law, each selling<br \/>\nShareholder will indemnify and hold harmless the Company, each of its directors,<br \/>\neach of its officers who has signed the registration statement, each person, if<br \/>\nany, who controls the Company within the meaning of the Act, any underwriter,<br \/>\nany other Shareholder selling securities in such registration statement and any<br \/>\ncontrolling person of any such underwriter or other Shareholder, against any<br \/>\nlosses, claims, damages or liabilities (joint or several) to which any of the<br \/>\nforegoing persons may become subject under the Act, the 1934 Act or other<br \/>\nfederal or state law, insofar as such losses, claims, damages or liabilities (or<br \/>\nactions in respect thereto) arise out of or are based upon any Violation, in<br \/>\neach case to the extent (and only to the extent) that such Violation occurs in<br \/>\nreliance upon and in conformity with written information furnished by such<br \/>\nShareholder expressly for use in connection with such registration; and each<br \/>\nsuch Shareholder will pay, as incurred, any legal or other expenses reasonably<br \/>\nincurred by any person intended to be indemnified pursuant to this subsection<br \/>\n1.8(b) in connection with investigating or defending any such loss, claim,<br \/>\ndamage, liability or action; provided, however, that the indemnity agreement<br \/>\ncontained in this subsection 1.8(b) shall not apply to amounts paid in<br \/>\nsettlement of any such loss, claim, damage, liability or action if such<br \/>\nsettlement is effected without the consent of such Shareholder (which consent<br \/>\nshall not be unreasonably withheld); provided that in no event shall any<br \/>\nindemnity under this subsection 1.8(b) exceed the net proceeds from the offering<br \/>\nreceived by such Shareholder.<\/p>\n<p>                  (c)      Promptly after receipt by an indemnified party under<br \/>\nthis Section 1.8 of notice of the commencement of any action (including any<br \/>\ngovernmental action), such indemnified party will, if a claim in respect thereof<br \/>\nis to be made against any indemnifying party under this Section 1.8, deliver to<br \/>\nthe indemnifying party a written notice of the commencement thereof and the<br \/>\nindemnifying party shall have the right to participate in and, to the extent the<br \/>\nindemnifying party so desires, jointly with any other indemnifying party<br \/>\nsimilarly noticed, to assume the defense thereof with counsel mutually<br \/>\nsatisfactory to the parties; provided, however, that an indemnified party<br \/>\n(together with all other indemnified parties that may be represented without<br \/>\nconflict by one counsel) shall have the right to retain one separate counsel,<br \/>\nwith the fees and expenses to be paid by the indemnifying party, if<br \/>\nrepresentation of such indemnified party by the counsel retained by the<br \/>\nindemnifying party would be inappropriate due to actual or potential differing<br \/>\ninterests between such indemnified party and any other party represented by such<br \/>\ncounsel in such proceeding. The failure to deliver written notice to the<br \/>\nindemnifying party within a reasonable time of the commencement of any such<br \/>\naction, if prejudicial to its ability to defend such action, shall relieve such<br \/>\nindemnifying party of any liability to the indemnified party<\/p>\n<p>                                       8<\/p>\n<p>under this Section 1.8, but the omission so to deliver written notice to the<br \/>\nindemnifying party will not relieve it of any liability that it may have to any<br \/>\nindemnified party otherwise than under this Section 1.8.<\/p>\n<p>                  (d)      If the indemnification provided for in this Section<br \/>\n1.8 is held by a court of competent jurisdiction to be unavailable to an<br \/>\nindemnified party with respect to any loss, liability, claim, damage or expense<br \/>\nreferred to therein, then the indemnifying party, in lieu of indemnifying such<br \/>\nindemnified party hereunder, shall contribute to the amount paid or payable by<br \/>\nsuch indemnified party as a result of such loss, liability, claim, damage or<br \/>\nexpense in such proportion as is appropriate to reflect the relative fault of<br \/>\nthe indemnifying party on the one hand and of the indemnified party on the other<br \/>\nin connection with the statements or omissions that resulted in such loss,<br \/>\nliability, claim, damage or expense as well as any other relevant equitable<br \/>\nconsiderations. The relative fault of the indemnifying party and of the<br \/>\nindemnified party shall be determined by reference to, among other things,<br \/>\nwhether the untrue or alleged untrue statement of a material fact or the<br \/>\nomission to state a material fact relates to information supplied by the<br \/>\nindemnifying party or by the indemnified party and the parties&#8217; relative intent,<br \/>\nknowledge, access to information and opportunity to correct or prevent such<br \/>\nstatement or omission. Notwithstanding the provisions of this Section 1.8(d), no<br \/>\nShareholder shall be required to contribute any amount in excess of the amount<br \/>\nby which the net proceeds received by such holder from the Registrable<br \/>\nSecurities sold by it exceeds the amount of any damages which such holder has<br \/>\notherwise been required to pay by reason of such untrue or alleged untrue<br \/>\nstatement or omission or alleged omission. No person guilty of fraudulent<br \/>\nmisrepresentations (within the meaning of Section 11(f) of the Securities Act)<br \/>\nshall be entitled to contribution from any person who was not guilty of such<br \/>\nfraudulent misrepresentation. No party shall be liable for contribution with<br \/>\nrespect to any action, suit, proceeding or claim settled without its prior<br \/>\nconsent, which consent shall not be unreasonably withheld or delayed.<\/p>\n<p>                  (e)      The obligations of the Company and Shareholders under<br \/>\nthis Section 1.8 shall survive the completion of any offering of Registrable<br \/>\nSecurities in a registration statement under this Section 1, and otherwise.<\/p>\n<p>                  1.9      REPORTS UNDER SECURITIES EXCHANGE ACT OF 1934. With a<br \/>\nview to making available to the Shareholders the benefits of Rule 144<br \/>\npromulgated under the Act and any other rule or regulation of the SEC that may<br \/>\nat any time permit a Shareholder to sell securities of the Company to the public<br \/>\nwithout registration or pursuant to a registration on Form S-3, the Company<br \/>\nagrees to:<\/p>\n<p>                  (a)      make and keep public information available, as those<br \/>\nterms are understood and defined in SEC Rule 144;<\/p>\n<p>                  (b)      file with the SEC in a timely manner all reports and<br \/>\nother documents required of the Company under the Act and the 1934 Act; and<\/p>\n<p>                  (c)      furnish to any Shareholder, so long as such<br \/>\nShareholder owns any Registrable Securities, forthwith upon request (i) a<br \/>\nwritten statement by the Company that it has complied with the reporting<br \/>\nrequirements of Rule 144 under the Act and the 1934 Act, (ii) a copy of the most<br \/>\nrecent annual or quarterly report of the Company and such other reports and<\/p>\n<p>                                       9<\/p>\n<p>documents so filed by the Company, and (iii) such other information as may be<br \/>\nreasonably requested in availing any Shareholder of Rule 144 under the Act.<\/p>\n<p>                  1.10     NO ASSIGNMENT OF REGISTRATION RIGHTS. The<br \/>\nregistration rights provided hereunder are not assignable, except to a<br \/>\ntransferee upon the death of any Shareholder, a personal legal representative in<br \/>\nthe event of incapacity of any Shareholder, a trust or other estate planning<br \/>\nentity established by any Shareholder for the benefit of the Shareholder, or<br \/>\notherwise by operation of law. Notwithstanding the foregoing, a Shareholder may<br \/>\ntransfer all or any part of the Registrable Securities to an affiliate of such<br \/>\nShareholder (as such term is defined in the CANADA BUSINESS CORPORATIONS ACT) (a<br \/>\n&#8220;Transferee&#8221;) and may transfer the registration rights provided hereunder to<br \/>\nsuch Transferee, who shall be deemed a Shareholder for all purposes of this<br \/>\nAgreement, provided that (i) such transfer is exempt from the registration and<br \/>\nprospectus requirements of applicable Canadian provincial securities laws, and<br \/>\n(ii) prior to any such transfer, the Transferee executes and delivers to the<br \/>\nCompany an agreement, in form and content acceptable to the Company, acting<br \/>\nreasonably, with respect to the transferred Registrable Securities, under which<br \/>\nthe Transferee agrees to be bound by the terms of this Agreement and further<br \/>\nagrees that, prior to the Transferee ceasing to be an affiliate of the<br \/>\nShareholder, it will re-transfer such Registrable Securities to the Shareholder.<br \/>\nNo such transfer shall release the Shareholder from liability for its<br \/>\nobligations under this Agreement.<\/p>\n<p>                  1.11     TERMINATION OF REGISTRATION RIGHTS. No Shareholder<br \/>\nshall be entitled to exercise any right provided for in this Section 1 after ten<br \/>\n(10) years following the Effective Date or, as to any Shareholder, such earlier<br \/>\ntime at which all Registrable Securities held by such Shareholder can be sold in<br \/>\nany three (3) month period without registration in compliance with Rule 144 of<br \/>\nthe Act. Upon the termination of registration rights pursuant to this Section<br \/>\n1.11, the Company shall have the right to withdraw any registration statement,<br \/>\nor any portion thereof, covering the Registrable Securities.<\/p>\n<p>                  2.       MISCELLANEOUS.<\/p>\n<p>                  2.1      SUCCESSORS AND ASSIGNS. Except as otherwise provided<br \/>\nherein, the terms and conditions of this Agreement shall inure to the benefit of<br \/>\nand be binding upon the respective successors and assigns of the parties.<br \/>\nNothing in this Agreement, express or implied, is intended to confer upon any<br \/>\nparty other than the parties hereto or their respective successors and assigns<br \/>\nany rights, remedies, obligations, or liabilities under or by reason of this<br \/>\nAgreement, except as expressly provided in this Agreement.<\/p>\n<p>                  2.2      GOVERNING LAW. This Agreement shall be governed by<br \/>\nand construed under the internal laws of the State of California.<\/p>\n<p>                  2.3      COUNTERPARTS. This Agreement may be executed in two<br \/>\nor more counterparts, each of which shall be deemed an original, but all of<br \/>\nwhich together shall constitute one and the same instrument.<\/p>\n<p>                  2.4      TITLES AND SUBTITLES. The titles and subtitles used<br \/>\nin this Agreement are used for convenience only and are not to be considered in<br \/>\nconstruing or interpreting this Agreement.<\/p>\n<p>                                       10<\/p>\n<p>                  2.5      NOTICES. Unless otherwise provided, any notice<br \/>\nrequired or permitted under this Agreement shall be given in writing and shall<br \/>\nbe deemed effectively given upon personal delivery to the party to be notified<br \/>\nor upon deposit with the United States Post Office or Canada Post, by registered<br \/>\nor certified mail, postage prepaid and addressed to the party to be notified at<br \/>\nthe address indicated for such party on the signature page hereof, or at such<br \/>\nother address as such party may designate by ten (10) days&#8217; advance written<br \/>\nnotice to the other parties.<\/p>\n<p>                  2.6      EXPENSES. If any action at law or in equity is<br \/>\nnecessary to enforce or interpret the terms of this Agreement, the prevailing<br \/>\nparty shall be entitled to reasonable attorneys&#8217; fees, costs and necessary<br \/>\ndisbursements in addition to any other relief to which such party may be<br \/>\nentitled.<\/p>\n<p>                  2.7      AMENDMENTS AND WAIVERS. Any term of this Agreement,<br \/>\nexcept as provided in this section 2.7, may be amended and the observance of any<br \/>\nterm of this Agreement may be waived (either generally or in a particular<br \/>\ninstance and either retroactively or prospectively), only with the written<br \/>\nconsent of the Company and the Shareholders of a majority of the Registrable<br \/>\nSecurities then outstanding. Any amendment or waiver effected in accordance with<br \/>\nthis paragraph shall be binding upon each Shareholder and the Company.<\/p>\n<p>                  2.8      SHAREHOLDERS&#8217; AGENT.<\/p>\n<p>                  (a)      Pursuant to the Plan of Arrangement, the<br \/>\nShareholders&#8217; Agent has been appointed as agent for the Shareholders to give and<br \/>\nreceive notices and communications, and to take all actions necessary or<br \/>\nappropriate, in the judgment of the Shareholders&#8217; Agent, for the accomplishment<br \/>\nof the foregoing. No bond shall be required of the Shareholders&#8217; Agent, and the<br \/>\nShareholders&#8217; Agent shall not receive compensation for his services under this<br \/>\nAgreement.<\/p>\n<p>                  (b)      A decision, act, consent or instruction of the<br \/>\nShareholders&#8217; Agent shall constitute a decision of all the Shareholders and<br \/>\nshall be final, binding and conclusive upon each such Shareholder, and the<br \/>\nCompany may rely upon any such decision, act, consent or instruction of the<br \/>\nShareholders&#8217; Agent as being the decision, act, consent or instruction of every<br \/>\nShareholder and any notices or communications to or from the Shareholders&#8217; Agent<br \/>\nshall constitute notice to or from each of the Shareholders. The Company is<br \/>\nhereby relieved from any liability to any Person for any acts done by them in<br \/>\naccordance with any decision, act, consent or instruction of the Shareholders&#8217;<br \/>\nAgent.<\/p>\n<p>                  (c)      The Shareholders may, from time to time upon not less<br \/>\nthan 20 days&#8217; prior written notice to the Company, remove the Shareholders&#8217;<br \/>\nAgent and appoint a successor shareholders&#8217; agent; provided, however, that the<br \/>\nShareholders&#8217; Agent may not be removed unless holders of at least a two-thirds<br \/>\nof the Registrable Securities then outstanding agree in writing to such removal<br \/>\nand to the identity of the successor Shareholders&#8217; Agent. Any vacancy in the<br \/>\nposition of Shareholders&#8217; Agent under this Agreement may be filled by written<br \/>\napproval of the holders of a simple majority of the Registrable Securities then<br \/>\noutstanding.<\/p>\n<p>                  (d)      The Shareholders&#8217; Agent shall not be liable for any<br \/>\nact done or omitted hereunder as agent of the Shareholders while acting in good<br \/>\nfaith, or acting on the advice of <\/p>\n<p>                                       11<\/p>\n<p>counsel. The Shareholders&#8217; Agent shall have no duty, obligation or<br \/>\nresponsibility to expend his personal funds in support of his activities as<br \/>\nagent of the Shareholders.<\/p>\n<p>                  (e)      The Shareholders shall jointly and severally<br \/>\nindemnify and hold harmless the Shareholders&#8217; Agent against all claims, damages,<br \/>\nreasonable costs, penalties, fines and reasonable expenses (including reasonable<br \/>\nexpenses of the Shareholders&#8217; Agent&#8217;s legal counsel) which, without fraud,<br \/>\nrecklessness, willful misconduct or bad faith on the part of the Shareholders&#8217;<br \/>\nAgent, may be paid, incurred or suffered by the Shareholders&#8217; Agent by reason of<br \/>\nor as a result of the performance by the Shareholders&#8217; Agent of his obligations<br \/>\nset out in this Agreement.<\/p>\n<p>                  2.9      SEVERABILITY. If one or more provisions of this<br \/>\nAgreement are held to be unenforceable under applicable law, such provision<br \/>\nshall be excluded from this Agreement and the balance of the Agreement shall be<br \/>\ninterpreted as if such provision were so excluded and shall be enforceable in<br \/>\naccordance with its terms.<\/p>\n<p>                  2.10     AGGREGATION OF STOCK. All shares of Registrable<br \/>\nSecurities held or acquired by affiliated entities or persons shall be<br \/>\naggregated together for the purpose of determining the availability of any<br \/>\nrights under this Agreement.<\/p>\n<p>                  2.11     ENTIRE AGREEMENT. This Agreement constitutes the full<br \/>\nand entire understanding and agreement between the parties with regard to the<br \/>\nsubjects hereof.<\/p>\n<p>                [Remainder of this page intentionally left blank]<\/p>\n<p>                                       12<\/p>\n<p>                  IN WITNESS WHEREOF, the parties have executed this Agreement<br \/>\nas of the date first above written.<\/p>\n<p>                                    REDBACK NETWORKS INC.<\/p>\n<p>                                    By:<br \/>\n                                       &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br \/>\n                                    Chief Executive Officer<\/p>\n<p>                           Address:<\/p>\n<p>                                    By:<br \/>\n                                       &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br \/>\n                                         Andrew Waitman, as agent for and<br \/>\n                                         on behalf of the Shareholders<\/p>\n<p>                           Address:<\/p>\n<p>                                    EXHIBIT A<\/p>\n<p>                     SHAREHOLDER INFORMATION QUESTIONNAIRE:<\/p>\n<p>All information furnished below by the undersigned for use in the Shelf<br \/>\nRegistration Statement is, and on the date such shares registered thereunder,<br \/>\nwill be true, correct, and complete in all material respects, and does not, and<br \/>\non the date on which the undersigned sells such shares, will not, contain any<br \/>\nuntrue statement of a material fact or omit to state any material fact necessary<br \/>\nto make such information not misleading. By completing and returning this<br \/>\ninformation statement, the undersigned hereby consents to the use of his or her<br \/>\nname, address, and share ownership information in the appropriate form of<br \/>\nregistration statement of Redback Networks Inc.<\/p>\n<p>A. DATE.<\/p>\n<p>         Fill in Date:<br \/>\n                                                    &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/p>\n<p>B. NAME.                                                    Print:<\/p>\n<p>         Print and sign name or names<br \/>\n         exactly as name or names appear on         &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br \/>\n         share certificate. If certificate is held<br \/>\n         in more than one name, all must sign.      &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/p>\n<p>                                                             Sign:<\/p>\n<p>                                                    &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/p>\n<p>                                                    &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/p>\n<p>C.       ADDRESS.<\/p>\n<p>         Fill in your address:<br \/>\n                                                    &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/p>\n<p>                                                    &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/p>\n<p>                                                    &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/p>\n<p>D. STOCK OWNED.<\/p>\n<p>         Fill in number of shares of<br \/>\n         Common Stock owned of record        Of Record          Beneficially<br \/>\n         and beneficially.<br \/>\n                                       &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-   &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<\/p>\n<p>E. AGGREGATE NUMBER OF SHARES OF COMMON STOCK ACQUIRED IN PRIVATE PLACEMENT OF<br \/>\n   COMMON STOCK TO BE REGISTERED:<\/p>\n<p>                                                         Shares<br \/>\n                    &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/p>\n<p>F. STATUS.<\/p>\n<p>         The signatory hereto is an individual ( ), partnership ( ), corporation<br \/>\n( ), or other, as more fully described below ( ). The signatory is not acting in<br \/>\na fiduciary capacity or as a nominee in selling shares in the public offering,<br \/>\nexcept as indicated below.<\/p>\n<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<\/p>\n<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<\/p>\n<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<\/p>\n<p>                                    EXHIBIT I<\/p>\n<p>                              ASSUMPTION AGREEMENT<\/p>\n<p>                                  STOCK OPTION<br \/>\n                 ASSUMPTION, AMENDING AND CONFIRMATION AGREEMENT<\/p>\n<p>                 THIS AGREEMENT made as of the o day of o, 2000.<\/p>\n<p>BETWEEN:<\/p>\n<p>            REDBACK  NETWORKS  INC., a corporation  existing under the laws of<br \/>\n            the State of Delaware<\/p>\n<p>            (hereinafter referred to as &#8220;REDBACK&#8221;)<\/p>\n<p>AND:<\/p>\n<p>            ABATIS SYSTEMS CORPORATION, a corporation existing under the<br \/>\n            federal laws of Canada<\/p>\n<p>            (hereinafter referred to as &#8220;ABATIS&#8221;)<\/p>\n<p>WHEREAS:<\/p>\n<p>A.       Abatis has issued and outstanding options entitling directors,<br \/>\nofficers, employees and consultants of Abatis to purchase an aggregate of up to<br \/>\no Class A Voting Common Shares (&#8220;ABATIS SHARES&#8221;) in the capital of Abatis<br \/>\n(collectively the &#8220;ABATIS OPTIONS&#8221;) pursuant to Abatis&#8217;s Key Employee Stock<br \/>\nOption Plan (the &#8220;ABATIS STOCK OPTION PLAN&#8221;);<\/p>\n<p>B.       Pursuant to an arrangement agreement (the &#8220;ARRANGEMENT AGREEMENT&#8221;)<br \/>\namong Redback, 610381 B.C. Inc. (&#8220;EXCHANGECO&#8221;) and Abatis dated as of July 30,<br \/>\n2000, Exchangeco has agreed to acquire all of the issued and outstanding Abatis<br \/>\nShares in exchange for Shares of Common Stock of Redback (&#8220;REDBACK COMMON<br \/>\nSHARES&#8221;) and exchangeable shares of Exchangeco exchangeable for Redback Common<br \/>\nShares pursuant to a statutory plan of arrangement (the &#8220;PLAN OF ARRANGEMENT&#8221;)<br \/>\nunder section 192 of the CANADA BUSINESS CORPORATIONS ACT;<\/p>\n<p>C.       Under the Plan of Arrangement, each Abatis Option will be exchanged for<br \/>\nan option (a &#8220;REPLACEMENT OPTION&#8221;) to purchase Redback Common Shares; and<\/p>\n<p>D.       To enable the holders of Abatis Options (&#8220;OPTIONHOLDERS&#8221;) to purchase<br \/>\nRedback Common Shares upon exercise of the Replacement Options Redback has<br \/>\nagreed to assume Abatis&#8217;s obligations under the Abatis Stock Option Plan, as<br \/>\namended hereby, and to exchange Abatis Options for Replacement Options on the<br \/>\nbasis set out in the Plan of Arrangement.<\/p>\n<p>         NOW THEREFORE in consideration of the sum of $10.00 paid by each party<br \/>\nto the other and other good and valuable consideration, the receipt and<br \/>\nsufficiency of which is hereby acknowledged, the parties hereto agree as<br \/>\nfollows:<\/p>\n<p>1.       DEFINITIONS. Each term denoted herein by initial capital letters and<br \/>\nnot otherwise defined herein shall have the meaning ascribed thereto in the Plan<br \/>\nof Arrangement unless the context requires otherwise.<\/p>\n<p>2.       ASSUMPTION OF PLAN AND OPTIONS. In order to implement the Plan of<br \/>\nArrangement and enable Optionholders to purchase Redback Common Shares pursuant<br \/>\nto the Replacement Options on the basis set out in the Plan of Arrangement,<br \/>\nRedback shall, with effect from the Effective Time, assume, observe, perform and<br \/>\ndischarge all covenants, terms, conditions and obligations contained in the<br \/>\nAbatis Stock Option Plan and the Abatis Options required to be observed,<br \/>\nperformed and discharged by Abatis in the place and stead of Abatis on the terms<br \/>\nand conditions specified herein.<\/p>\n<p>3.       AMENDMENT OF PLAN. For greater certainty, the covenants, terms,<br \/>\nconditions and obligations which Redback will observe, perform and discharge in<br \/>\nrespect of the Abatis Stock Option Plan shall, with effect from the Effective<br \/>\nTime, be deemed to be those in the Abatis Stock Option Plan, subject to the<br \/>\namendments as follows:<\/p>\n<p>         (a)      each and every reference to a &#8220;Common Share&#8221; thereunder shall<br \/>\n                  be deemed to be a reference to that fraction of a Redback<br \/>\n                  Common Share equal to the Exchange Ratio and any reference to<br \/>\n                  &#8220;Common Shares&#8221; under the Abatis Stock Option Plan shall be<br \/>\n                  deemed to be reference to Redback Shares;<\/p>\n<p>         (b)      each and every reference to Abatis or the &#8220;Corporation&#8221; in<br \/>\n                  sections 9, 10, 11 and 17 of the Abatis Stock Option Plan<br \/>\n                  shall be deemed to be a reference to Redback;<\/p>\n<p>         (c)      the second paragraph of section 5 of the Abatis Stock Option<br \/>\n                  Plan shall be deemed to be deleted in its entirety;<\/p>\n<p>         (d)      section 7 of the Abatis Stock Option Plan shall be deemed to<br \/>\n                  be deleted in its entirety and replaced with the vesting and<br \/>\n                  exercise provisions set out in Schedule &#8220;A&#8221; hereto;<\/p>\n<p>         (e)      section 22 of the Abatis Stock Option Plan shall be deemed to<br \/>\n                  be deleted in its entirety and replaced with the following:<\/p>\n<p>                  &#8220;22.     NOTICES<\/p>\n<p>                                       2<\/p>\n<p>                  All written notices to be given by the Optionee to Abatis or<br \/>\n                  to Redback shall be delivered personally or by registered<br \/>\n                  mail, postage prepaid, addressed as follows:<\/p>\n<p>                  Redback Networks Inc.<br \/>\n                  1195 Borregas Avenue<br \/>\n                  Sunnyvale, CA<br \/>\n                  94089<br \/>\n                  ATTENTION:  General Counsel<br \/>\n                  Facsimile:  (408) 571-5195<\/p>\n<p>                  Any  notice  given by the Optionee pursuant to the terms of an<br \/>\n                  Option shall not be effective until actually received by<br \/>\n                  Redback at the above address.&#8221;; and<\/p>\n<p>         (f)      Schedule I to the Abatis Stock Option Plan shall be deemed to<br \/>\nbe deleted in its entirety.<\/p>\n<p>4.       AMENDMENT OF OPTIONS. For greater certainty, the covenants, terms,<br \/>\nconditions and obligations which Redback will observe, perform and discharge in<br \/>\nrespect of each Abatis Option and document evidencing the same shall, pursuant<br \/>\nto the Plan of Arrangement and with effect from the Effective Time, be deemed to<br \/>\nbe those in the respective Abatis Option and document evidencing the same,<br \/>\nsubject to the amendments as follows:<\/p>\n<p>         (a)      each and every reference to a Abatis Common Share therein<br \/>\n                  shall be deemed to be a reference to a fraction of a Redback<br \/>\n                  Common Share equal to the Exchange Ratio and the total number<br \/>\n                  of Abatis Shares purchasable (the &#8220;ABATIS OPTION SHARES&#8221;)<br \/>\n                  pursuant to such Abatis Option shall be deemed to be a<br \/>\n                  reference to the number of Redback Common Shares equal to the<br \/>\n                  product (rounded down to the nearest whole number) obtained<br \/>\n                  when the number of Abatis Option Shares is multiplied by the<br \/>\n                  Exchange Ratio;<\/p>\n<p>         (b)      each and every reference to Abatis therein shall be deemed to<br \/>\n                  be a reference to Redback;<\/p>\n<p>         (c)      each and every reference to a dollar amount therein shall be<br \/>\n                  deemed to be a reference to the United States Dollar<br \/>\n                  Equivalent (immediately prior to the Effective Time) of the<br \/>\n                  quotient obtained when that dollar amount is divided by the<br \/>\n                  Exchange Ratio (rounded up to the nearest whole cent); and<\/p>\n<p>         (d)      the vesting and exercise provisions therein shall be deemed to<br \/>\n                  be deleted and replaced with the applicable vesting and<br \/>\n                  exercise provisions set out in Schedule &#8220;A&#8221; hereto.<\/p>\n<p>5.       OTHER TERMS. Other than as provided herein, the term to expiry,<br \/>\nconditions to and manner of exercise and other terms and conditions of the<br \/>\nReplacement Options shall be the same as the terms and conditions of the Abatis<br \/>\nOptions for which they are exchanged.<\/p>\n<p>                                       3<\/p>\n<p>6.       OPTION CERTIFICATES OR NOTICES. Any document or agreement evidencing a<br \/>\nAbatis Option shall be deemed to evidence a Replacement Option.<\/p>\n<p>7.       REGISTRATION. As promptly as practicable after the Effective Date, but<br \/>\nin any event within 30 days thereafter, Redback shall file with the United<br \/>\nStates Securities and Exchange Commission a registration statement on Form S-8<br \/>\n(or other applicable form) in order to register under the UNITED STATES<br \/>\nSECURITIES ACT of 1933 those Redback Common Shares to be issued from time to<br \/>\ntime after the Effective Time upon exercise of the Replacement Options.<\/p>\n<p>8.       NOTIFICATION OF THIS AGREEMENT AND THE ARRANGEMENT. Redback shall, as<br \/>\npromptly as practicable after the Effective Date, deliver to each of the<br \/>\nOptionholders by pre-paid ordinary mail a notice of the terms of this Agreement<br \/>\nand a confirmation of the number of Redback Common Shares and the relevant<br \/>\nexercise price thereof under each of their respective Replacement Options.<\/p>\n<p>9.       NOTICES. All notices and other communications which may or are required<br \/>\nto be given pursuant to any provision of this Agreement shall be given or made<br \/>\nin writing and shall be deemed to be validly given if served personally or by<br \/>\ntelecopy, in each case addressed to the particular party at:<\/p>\n<p>                  (a)      If to Redback:<\/p>\n<p>                  Redback Networks Inc.<br \/>\n                  1195 Borregas Avenue<br \/>\n                  Sunnyvale, CA<br \/>\n                  94089<\/p>\n<p>                  ATTENTION:  General Counsel<br \/>\n                  Facsimile:  (408) 571-5195<\/p>\n<p>                  (b)      If to Abatis:<\/p>\n<p>                  Abatis Systems Corporation<br \/>\n                  4190 Still Creek Drive<br \/>\n                  Suite 200<br \/>\n                  Burnaby, British Columbia<br \/>\n                  V5C 6C6<\/p>\n<p>                  ATTENTION:     President<br \/>\n                  Facsimile:     (604) 918-4795<\/p>\n<p>or at such other address of which any party may, from time to time, advise the<br \/>\nother parties by notice in writing given in accordance with the foregoing. The<br \/>\ndate of receipt of any such notice shall be deemed to be the date of delivery or<br \/>\ntelecopying thereof.<\/p>\n<p>                                       4<\/p>\n<p>10.      FURTHER ASSURANCES. Each party hereto shall, from time to time, and at<br \/>\nall times hereafter, at the request of the other parties hereto, but without<br \/>\nfurther consideration, do all such further acts and things and execute and<br \/>\ndeliver all such further documents and instruments as shall be reasonably<br \/>\nrequired in order to fully perform and carry out the terms and intent hereof.<\/p>\n<p>11.      GOVERNING LAWS. This Agreement shall be governed by and construed in<br \/>\naccordance with the laws of the Province of British Columbia and the laws of<br \/>\nCanada applicable therein and shall be treated in all respects as a British<br \/>\nColumbia contract.<\/p>\n<p>12.      BINDING EFFECT. This Agreement shall be binding upon and shall enure to<br \/>\nthe benefit of the parties hereto and their respective successors.<\/p>\n<p>13.      COUNTERPARTS. This Agreement may be executed in one or more<br \/>\ncounterparts, each of which shall be deemed to be an original, but all of which<br \/>\ntogether shall constitute one and the same instrument.<\/p>\n<p>         IN WITNESS WHEREOF the parties hereto have executed this Agreement as<br \/>\nof the date first written above.<\/p>\n<p>REDBACK NETWORKS INC.<\/p>\n<p>Per:<br \/>\n      &#8212;&#8212;&#8212;&#8212;<br \/>\n        Authorized Signatory<\/p>\n<p>ABATIS SYSTEMS CORPORATION<\/p>\n<p>Per:<br \/>\n      &#8212;&#8212;&#8212;&#8212;<br \/>\n        Authorized Signatory<\/p>\n<p>                                       5<\/p>\n<p>                                  SCHEDULE &#8220;A&#8221;<\/p>\n<p>                         EXERCISE OF REPLACEMENT OPTIONS<\/p>\n<p>A.       OPTIONS WITH SPECIAL EXERCISE TERMS<\/p>\n<p>         o     Each Replacement Option issued in exchange for a Abatis Option<br \/>\n         containing exercise terms different from those set out in Section 7,<br \/>\n         12, 13 and 14 of the Abatis Stock Option Plan (before giving effect to<br \/>\n         this Agreement) shall become exercisable at the times and subject to<br \/>\n         the vesting and exercise conditions specified in such Abatis Option<br \/>\n         for, at each time specified therein, the number of Redback Common<br \/>\n         Shares which is equal to the product (rounded to the nearest lower<br \/>\n         whole number) obtained when the number of Abatis Shares for which such<br \/>\n         Abatis Option would have, but for the Arrangement, been exercisable at<br \/>\n         such time is multiplied by the Exchange Ratio.<\/p>\n<p>B.       OTHER OPTIONS<\/p>\n<p>                  Subject to paragraph C below, each Replacement Option other<br \/>\n         than the Replacement Options referred to above will become exercisable<br \/>\n         as follows:<\/p>\n<p>         o     With respect to the first 25% of the Redback Common Shares<br \/>\n         subject thereto, when the holder thereof has completed 12 months of<br \/>\n         continuous service with Abatis and\/or Redback from the later of the<br \/>\n         date of grant of the Abatis Option for which such Replacement Option is<br \/>\n         to be exchanged and the date of commencement of such service.<\/p>\n<p>         o     With respect to an additional 1\/48th of the Redback Common Shares<br \/>\n         subject thereto, when the holder thereof has completed each month of<br \/>\n         continuous service with Abatis and\/or Redback after the first<br \/>\n         anniversary of the later of date of grant of the Abatis Option for<br \/>\n         which such Replacement Option is to be exchanged and the date of<br \/>\n         commencement of such service.<\/p>\n<p>C.       CLARIFICATION WITH RESPECT TO FULLY OR PARTIALLY EXERCISABLE OPTIONS<\/p>\n<p>         o     For greater certainty, and in addition to paragraph A or B above,<br \/>\n         each Replacement Option issued in exchange for a Abatis Option which is<br \/>\n         fully or partially exercisable as at the Effective Date shall be<br \/>\n         immediately exercisable for the number of Redback Common Shares which<br \/>\n         is equal to the product (rounded to the nearest lower whole number)<br \/>\n         obtained when the number of Abatis Shares for <\/p>\n<p>         which such Abatis Option is exercisable as at the Effective Date is<br \/>\n         multiplied by the Exchange Ratio.<\/p>\n<p>D.       CONTINUED APPLICATION OF OTHER TERMS<\/p>\n<p>         o     For greater certainty, except as provided in this Assumption,<br \/>\n         Amending and Confirmation Agreement (including this Schedule A), all of<br \/>\n         the other terms and conditions of each Replacement Option shall be the<br \/>\n         same as the terms and conditions of the Abatis Option for which it is<br \/>\n         exchanged, including, without limitation, the terms contained in<br \/>\n         sections 12, 13 and 14 of the Abatis Stock Option Plan.<\/p>\n<p>                                       2<\/p>\n","protected":false},"template":"","meta":{"_acf_changed":false,"_stopmodifiedupdate":true,"_modified_date":"","_cloudinary_featured_overwrite":false},"corporate_contracts_companies":[8660],"corporate_contracts_industries":[],"corporate_contracts_types":[9622,9626],"class_list":["post-43262","corporate_contracts","type-corporate_contracts","status-publish","hentry","corporate_contracts_companies-redback-networks-inc","corporate_contracts_types-planning","corporate_contracts_types-planning__merger"],"acf":[],"_links":{"self":[{"href":"https:\/\/corporate.findlaw.com\/legal-api\/wp-json\/wp\/v2\/corporate_contracts\/43262","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/corporate.findlaw.com\/legal-api\/wp-json\/wp\/v2\/corporate_contracts"}],"about":[{"href":"https:\/\/corporate.findlaw.com\/legal-api\/wp-json\/wp\/v2\/types\/corporate_contracts"}],"wp:attachment":[{"href":"https:\/\/corporate.findlaw.com\/legal-api\/wp-json\/wp\/v2\/media?parent=43262"}],"wp:term":[{"taxonomy":"corporate_contracts_companies","embeddable":true,"href":"https:\/\/corporate.findlaw.com\/legal-api\/wp-json\/wp\/v2\/corporate_contracts_companies?post=43262"},{"taxonomy":"corporate_contracts_industries","embeddable":true,"href":"https:\/\/corporate.findlaw.com\/legal-api\/wp-json\/wp\/v2\/corporate_contracts_industries?post=43262"},{"taxonomy":"corporate_contracts_types","embeddable":true,"href":"https:\/\/corporate.findlaw.com\/legal-api\/wp-json\/wp\/v2\/corporate_contracts_types?post=43262"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}