END-OF-SALE AND END-OF-LIFE ANNOUNCEMENT FOR THE CISCO IOS SOFTWARE RELEASE 12.0
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Updated:April 7, 2009
PRODUCT BULLETIN NO. EOL5093
Cisco Systems® announces the end-of-sale and end-of life dates for the
Cisco IOS software Release 12.0. The last day to order the affected product is
August 13, 2001. Customers with active service contracts will continue to receive support from the Cisco Technical Assistance Center (TAC) as shown in Table 1 in EoL product bulletin. Table 1 describes the end-of-life milestones, definitions, and dates for the Cisco IOS software Release 12.0.
Table 1. End-of-Life Milestones and Dates for the Cisco IOS software Release 12.0.
End-of-Life Announcement Date
The date the document that announces the end of sale and end of life of a product is distributed to the general public.
August 13, 2001
The last date to order the product through Cisco point-of-sale mechanisms. The product is no longer for sale after this date.
August 13, 2001
End of Software Maintenance Releases Date: OS SW
The last date that Cisco Engineering may release any final software maintenance releases or bug fixes. After this date, Cisco Engineering will no longer develop, repair, maintain, or test the product software.
October 15, 2001
Last Date of Support: OS SW
The last date to receive service and support for the product. After this date, all support services for the product are unavailable, and the product becomes obsolete.
August 31, 2004
HW = Hardware OS SW = Operating System Software App SW = Application Software
PRODUCT MIGRATION OPTIONS
Customers currently on Cisco IOS software Release 12.0 are recommended to upgrade to the latest version of Cisco IOS software Release 12.1 or 12.1T. 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 more information on the content of Release 12.1, please refer to
Cisco IOS software Release 12.1T is an Early Deployment Release and provides the same functionality as Release 12.1, plus new features and enhancements in all areas of Cisco IOS software: IP routing and services, Security, Connectivity & Scalability, Voice, and Management. For detailed information on the content of Release 12.1T, please refer to Cisco IOS Software Release 12.1T Feature Overview Product Bulletin (PB #1065) at
When upgrading to a more recent release, certain software images may no longer be available, hardware platforms may no longer be supported, or there may be may be changes to memory requirements. For further information, please refer to the Cisco Download Software Area at
Cisco customers with current SMARTnet Onsite or SMARTnet contracts can upgrade to Cisco IOS software Release 12.1 as part of their service contracts. For further information on upgrade service or SMARTnet, please consult your Cisco sales representative.