Cisco Cisco IOS Software Release 12.0(16) Guide De Dépannage
The Cisco IOS evolution to port−ready status indicates that Cisco IOS 11.3 and later can be more easily
ported to new platforms. Bulletproofing, a synonym for still finer levels of modularity, allows Cisco IOS
features to be defined tightly with little to no dependencies on other features or subsystems. Bulletproofing
allows Cisco IOS feature/solution sets to be built specifically to customer requirements. As Cisco IOS
continues to evolve, customers will be able to mix and match specific features to meet the requirements of
their unique environments.
ported to new platforms. Bulletproofing, a synonym for still finer levels of modularity, allows Cisco IOS
features to be defined tightly with little to no dependencies on other features or subsystems. Bulletproofing
allows Cisco IOS feature/solution sets to be built specifically to customer requirements. As Cisco IOS
continues to evolve, customers will be able to mix and match specific features to meet the requirements of
their unique environments.
Historical Facts
Cisco IOS 8.3 was the last popular Cisco IOS release before the 1990s.
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Cisco IOS 9.1 first customer shipped (FCS) in December 1992.
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Cisco IOS 9.1(16) is the last maintenance release of Cisco IOS 9.1. Cisco IOS 9.1 users were notified
that, as of April 17, 1995, they should upgrade to Cisco IOS 10.0(9) or 10.2(5). Cisco IOS 9.17 has
reached its end of sales (EOS) and end of maintenance (EOM) milestones. Cisco IOS 9.17(16) is the
last maintenance release of 9.17. No more features or bug fixes were to be applied to the Cisco IOS
9.17 line.
that, as of April 17, 1995, they should upgrade to Cisco IOS 10.0(9) or 10.2(5). Cisco IOS 9.17 has
reached its end of sales (EOS) and end of maintenance (EOM) milestones. Cisco IOS 9.17(16) is the
last maintenance release of 9.17. No more features or bug fixes were to be applied to the Cisco IOS
9.17 line.
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For more information, refer to:
Cisco IOS Software
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Types of Cisco IOS Software Releases
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Release Designations Defined
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Related Information
Technical Support & Documentation − Cisco Systems
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© 2014 − 2015 Cisco Systems, Inc. All rights reserved. Terms & Conditions | Privacy Statement | Cookie Policy | Trademarks of
Cisco Systems, Inc.
Updated: Dec 01, 2006
Document ID: 13327