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Cisco IOS Software Releases 12.1 Special and Early Deployments

Cisco IOS Software Release 12.1(5)YA

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Document ID: 20324


Description of the Release

 
 
 		 Cisco IOS® Software Release 12.1(5)YA is a short-lived Early Deployment release (XED) optimized for the new universal router module (URM) for the Cisco IGX 8400 series. This release is based upon the 12.1T maintenance release. 

Universal Router Module
The Universal Router Module (URM) front card is the first IOS blade in the IGX 8400 series platforms creating voice and router functionality. URM provides voice interoperability between the IGX switches and the branch routers such as the Cisco 1700, 2600, and 3600 series platforms. For more detailed information about the IGX 8400 series platform and the URM feature being delivered in Cisco IOS Software Release 12.1(5)YA please reference:
Release Notes for Cisco IGX 8400 Series URM for Cisco IOS Release 12.1 YA

Product and Feature Support


Features

 The Cisco IOS Software Release 12.1(5)YA will support the following platforms:

Product/Feature Image Name Memory Requirements
Cisco IGX 8400 Series  urm-is-mz. Release Notes for Cisco IGX 8400 Series URM for Cisco IOS Release 12.1 YA

Note:
The features delivered with this XED release will be immediately incorporated into Cisco IOS Software Release 12.1(5)T and subsequent Cisco IOS 12.2 releases. 

Support Pages

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 For more information, consult the following web pages: 
 

Parent Release Documentation

Other Links

Target Market

 		 Cisco Systems, Inc. released Cisco IOS Software Release 12.1(5)YA as a short-lived ED release for a new platform: the Cisco IGX 8400 series URM. URM is the first IOS blade on the IGX switches. It is targeted for the Enterprise Market.

Lifecycle of Release

 

 
 
 
 
 
 
 

 Cisco IOS Reference Guide
 
Milestones Y2K Compliance Release Designation
CCO FCS: February 12, 2001

MFG FCS: 

EOS: 

EOE:

EOL:

 Yes XED Release
Maintenance Releases CCO registered customers can view the Projected Release Dates for Cisco IOS Software Product Bulletin

It is highly recommended that Release Notes are used to determine if a maintenance release should be used. Release Notes provide announcements of new features and a summary of known caveats at the time of the renumber. 

Maintenance Cycle: Download Image
Cisco IOS Software Release 12.1(5)YA:
No maintenance plans for an X release.		  
Interim Builds

Short-lived X releases do not provide interim builds.

Recommended Customer Migration Path

To view the projected release date of Cisco IOS Software Release 12.1(5)YA, see:
Projected Release Dates for Cisco IOS Software Product Bulletin

Note:
The recommended migration path is the logical superceding release, which brings additional features and hardware support to the network without loss of previously configured functionality.  In this case the URM feature will be available again on Cisco IOS Software 12.2(2)XB release, and finally on the 12.2(3)T maintenance release.

Updated: Feb 18, 2003 Document ID: 20324