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Cisco IOS Software Releases 12.0 Mainline

End of Sales/Engineering for Cisco IOS Release 12.0(T)- No. 943

Table Of Contents

Product Bulletin No. 943

End of Sales (EOS)

Upgrade Path

End of Engineering (EOE)

End of Life


Product Bulletin No. 943


End of Sales and Engineering for
Cisco IOS Software
Releases 12.0T

Updated: September 27, 2001

This Product Bulletin serves as the updated notification of Cisco IOS Software Release 12.0T reaching the End of Sales and End of Engineering milestones.

End of Sales (EOS)

The EOS date for Cisco IOS Software Releases 12.0T running on the Cisco 2600, 3600, and 3800 Series routers is December 31, 2001. For all other platforms, Release 12.0T reached EOS on December 29, 2000.

Software releases reaching EOS are no longer orderable, but continue to be downloadable through the Cisco Connection Online (CCO) Software Center and Field Service Operations (FSO). Software defects found in this release may be addressed in Release 12.1 maintenance releases.

Upgrade Path

Customers currently on Cisco IOS Software Releases 12.0T are recommended to upgrade to the latest version of Cisco IOS Software Major Release 12.2 or 12.1. Release 12.1 provides the same functionality as Release 12.0T, but with a higher level of end-to-end testing within various network environments. For detailed information on the content of Release 12.1, please refer to Cisco IOS Software Release 12.1 New Features Product Bulletin No. 1078 at http://www.cisco.com/warp/ customer/cc/pd/iosw/prodlit/1078_pp.htm.

Cisco IOS Software Major Release 12.2 is the latest Major Release. It provides the same functionality as Release 12.1, plus new features and enhancements in all networking technology areas; IP routing and services, Security, Connectivity & Scalability, Voice, and Management. For detailed information on the content of Major Release 12.2, please refer to Cisco IOS Software Major Release 12.2 New Features Product Bulletin No. 1262 at http://www.cisco.com/warp/public/cc/pd/iosw/iore/prodlit/1262_pp.htm.

Cisco customers with current SMARTnet Onsite or SMARTnet contracts can upgrade to Cisco IOS Software Release 12.1 or 12.2 as part of their service contracts. For further information on upgrade service or SMARTnet, please consult your Cisco sales representative or access the SMARTnet web page at http://www.cisco.com/warp/public/cc/serv/mkt/sup/ent/snet/smnet_ds.htm.

End of Engineering (EOE)

Cisco IOS Software Release 12.0T reached EOE on December 27, 1999 with maintenance Release 12.0(7)T.

Since Release 12.0T reached EOE, there are no new maintenance releases for 12.0T. The End of Engineering release continues to be available through CCO and FSO Web sites until End of Life. Software defects found in this release may be addressed in Release 12.1.

End of Life

Cisco IOS Software Release 12.0T is scheduled to reach End of Life on December 31, 2003. At this time, support will no longer be provided for this release and the release will no longer be downloadable from CCO or FSO. Please refer to the Cisco IOS Software Release Dates & Milestones Product Bulletin No. 367 at http://www.cisco.com/warp/public/cc/pd/iosw/iore/prodlit/367_pb.htm for Cisco IOS Software life cycle information.

For More Information

For life cycle information on all currently supported Cisco IOS Software releases, please refer to Product Bulletin 367, which is available on CCO at http://www.cisco.com/warp/public/cc/cisco/mkt/ios/rel/prodlit/367_pp.htm.