Cisco 2500 Series Routers

Field Notice: End of Engineering for Cisco 2500 12.2 Images

July 25, 2001

Products Affected




Cisco 2500 series


Cisco 2500 Series Interim Image c2500-a3js-l 2501-2525


Cisco 2500 Series IOS ENTERPRISE/FW PLUS IPSEC 56 - c2500-jk8os-l 2501-2525


Cisco 2500 Series IOS ENTERPRISE PLUS IPSEC 56 c2500-jk8s-l 2501-2525

Problem Description

The following Cisco 2500 images have outgrown the flash memory size on the Cisco 2501 through the 2525 products:

  • c2500-a3js-l

  • c2500-jk8s-l

  • c2500-jk8os-l

The largest supported flash memory size for the Cisco 2500 is 16 MB; therefore, images larger than 16,777,216 bytes cannot run on the Cisco 2500 routers.


The Cisco 2500 series is a mature product. Some of the Cisco IOS ® Software Release 12.2 images have outgrown the Cisco 2500 series flash memory capacity.

Problem Symptoms

The affected images exceed the flash memory size.

The images cannot be loaded into the router using Trivial File Transfer Protocol (TFTP), File Transfer Protocol (FTP), remote copy protocol (rcp), or Netboot.



There is no workaround.


The End of Engineering (EOE) release for the affected images is 12.2(1).

EOE means:

  • There will be no more scheduled maintenance releases for images beyond 12.2(1).

  • Ongoing support for functionality in the 12.2 release train is not available.

  • Cisco IOS Software Release 12.2(1) is the last 12.2 maintenance release that is available for ordering.

Cisco will continue to provide Technical Assistance Center (TAC) support on EOE images, but no new software defect repairs will occur.

Upgrade Option:

Cisco has provided a Technology Migration Plan.

It is recommended that Cisco 2500 series users upgrade to the Cisco 2600 series.


To follow the bug ID link below and see detailed bug information, you must be a registered user and you must be logged in.



CSCdu55380 (registered customers only)

Remove C2500 images that are too big to fit in C2500 flash.

Cisco IOS Versions Affected

Cisco IOS Major Release

Cisco IOS Maintenance Release

Cisco IOS Images


12.2(0.6) and later

c2500-jk8s-l c2500-jk8os-l


12.2(0.1) and later


How To Upgrade Software

Maintenance Solution:

To obtain a different IOS feature set by using the links below, you must be a registered user and you must be logged in.

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

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