Cisco IOS Software Releases 12.2 Mainline

Cross-Platform Release Notes for Cisco IOS Release 12.2, Part 1: System Requirements

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Release Notes for Cisco IOS Release 12.2

Table Of Contents

Release Notes for Cisco IOS Release 12.2


Cross-Platform System Requirements

Supported Hardware Platforms

Determining Your Software Version

Upgrading to a New Release

Release Notes for Cisco IOS Release 12.2

April 27, 2007

Cisco IOS Release 12.2(46)


Note See the "Important Notes" section on page 185 for important information about Cisco IOS Release 12.2.

These release notes support Cisco IOS Release 12.2, up to and including Cisco IOS Release 12.2(46). These release notes are updated to describe new memory requirements, hardware support, software image deferrals, and changes to the microcode or modem code and related documents.

Cisco IOS Release 12.2(21a) and all subsequent 12.2 releases are deemed "Generally Deployable." We believe that Release 12.2 is suitable for deployment anywhere in the network where the features and functionality of the release are required.

For a list of the software caveats that apply to Cisco IOS Release 12.2, refer to the Caveats for Cisco IOS Release 12.2 document, which accompanies these release notes. The caveats document is updated for every maintenance release and is located on

We recommend that you view the field notices for this release to see if your software or hardware platforms are affected. If you have an account on, you can find field notices at If you do not have a login account, you can find field notices at


These release notes contain the following sections:

Cross-Platform System Requirements

Feature Support, page 7

Memory Recommendations, page 9

Platform-Specific Information, page 10

New and Changed Information, page 93

MIBs, page 183

Limitations and Restrictions, page 185

Important Notes, page 185

Caveats for Cisco IOS Release 12.2, page 261

Troubleshooting, page 262

Related Documentation, page 263

Notices, page 267

Obtaining Documentation, Obtaining Support, and Security Guidelines, page 269

Cross-Platform System Requirements

This section describes the system requirements for Cisco IOS Release 12.2 and includes the following sections:

Supported Hardware Platforms

Determining Your Software Version

Upgrading to a New Release

Supported Hardware Platforms

Cisco IOS Release 12.2 supports the following Cisco hardware platforms:

Cisco VG 200 Voice Gateway1

Cisco 4500 series

Cisco 800 series

Catalyst 5000 family RSM/VIP2

Cisco uBR920 series

Cisco AS5300 universal access server

Cisco 1400 series

Cisco AS5400 universal access server

Cisco 1600/1600R series

Cisco AS5800 universal access server

Cisco 1700 series

Cisco 7000 family

Cisco 2500 series2

Cisco uBR7200 series

Cisco 2600 series

Cisco ICS 77503

Cisco 3600 series

Cisco 15104 Optical Networking System4

Cisco MC3810 multiservice access concentrator5

Cisco MGX 8850 route processor module6

Catalyst 4000 Access Gateway Module

Cisco Signaling Link Terminal

1 The Cisco VG 200 Voice Gateway is not supported in Cisco IOS Release 12.2(34).

2 The Cisco 2500 series routers are not supported in Cisco IOS Release 12.2(34).

3 The Cisco ICS7750 images are not supported in Cisco IOS Release 12.2(19) and later releases.

4 The Cisco 15104 image is supported in Cisco IOS Release 12.2(1), Release 12.2(3), Release 12.2(6), Release 12.2(10), and Release 12.2(17). The Cisco 15104 image is not supported in Cisco IOS Release 12.2(12), Release 12.2(13), Release 12.2(16), Release 12.2(19), and later releases.

5 The Cisco MC3810 multiservice access concentrator is not supported in Cisco IOS Release 12.2(34).

6 The Cisco MGX 8850 Route Processor Module images are not supported in Cisco IOS Release 12.2(19) and later releases.

For detailed descriptions of the new hardware features, see the "New and Changed Information" section on page 93.

For additional information about supported hardware for these platforms and release, refer to the Hardware/Software Compatibility Matrix in the Cisco Software Advisor at the following location:

Determining Your Software Version

To determine the version of Cisco IOS software that is currently running on your Cisco network device, log in to the device and enter the show version EXEC command:

Router> show version
Cisco Internetwork Operating System Software 
IOS (tm) 12.2 Software (C2500-D-L), Version 12.2(28), RELEASE SOFTWARE

Upgrading to a New Release

For information about selecting a new Cisco IOS software release, please refer to How to Choose a Cisco IOS Software Release at:

For information about upgrading to a new software release, refer to the appropriate platform-specific document:

Cisco VG200 Series Gateways

Cisco 800 Series Routers

Cisco uBR900 Series Cable Access Routers

Cisco 1400 Series Routers

Cisco 1600 Series Routers

Cisco 1700 Series Routers

Cisco 2500 Series Routers

Cisco 2600 Series Multiservice Platforms

Cisco 3600 Series Multiservice Platforms

Cisco MC3810 Multiservice Access Concentrators

Cisco Catalyst 4500 Series Switches

Cisco Catalyst 5000 Series Switches

Cisco AS5300 Series Universal Gateways

Cisco AS5400 Series Universal Gateways

Cisco AS5800 Series Universal Gateways

Cisco 6400 Series Broadband Aggregators

Cisco 7200 Series, 7300 Series, 7400 Series, and 7500 Series Routers

Cisco uBR7200 Series Universal Broadband Routers

Cisco ICS 7700 Series Integrated Communication Systems

For Cisco IOS Upgrade Ordering Instructions, refer to the document at the following location:

To choose a new Cisco IOS software release by comparing feature support or memory requirements, use Cisco Feature Navigator. Cisco Feature Navigator is a web-based tool that enables you to determine which Cisco IOS software images support a specific set of features and which features are supported in a specific Cisco IOS image. You can search by feature or by feature set (software image). Under the release section, you can compare Cisco IOS software releases side by side to display both the features unique to each software release and the features that the releases have in common.

Cisco Feature Navigator is updated regularly when major Cisco IOS software releases and technology releases occur. For the most current information, go to the Cisco Feature Navigator home page at the following URL:

To choose a new Cisco IOS software release based on information about defects that affect that software, use Bug Toolkit at: