Cisco IOS Software Releases 12.1 Special and Early Deployments

Cisco IOS Software Release 12.1(11)YJ

Document ID: 30007

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Description of the Release

Cisco IOS® Software Release 12.1(11)YJ is an ED release (XED) optimized for the Catalyst 2950. This release is based upon the Cisco IOS Software 12.1(11)EA1 maintenance release. This product provides Ethernet connectivity over telephone grade wires. Any early deployment (ED) release of software should be used in a test network before being deployed in a production network.

Product and Feature Support

Cisco IOS Software Release 12.1(11)YJ will support the following platforms:

Product/Feature Image Name Memory  Requirements
Catalyst 2950
  • c2950lre-i6l2q4-mz
  • c2950lre-i6k2l2q4-mz
  • c2950lre-i6l2q4-tar
  • c2950lre-i6l2q4-tar
See Release Notes

Note: The features delivered with this XED release will be immediately incorporated into Cisco IOS Software Release 12.1(14)EA1 and subsequent Cisco IOS 12.1EA software releases.

Support Pages

For more information, consult the following web pages:

Release Documentation

Parent Release Documentation

Other Links

Target Market

Cisco Systems, Inc. released Cisco IOS Software Release 12.1(11)YJ as a short-lived release for the Catalyst 2950. It is targeted for the commercial and residential Metro Ethernet markets.

Lifecycle of Release

Cisco IOS Software Release Reference Guide

Milestones Y2K Compliance Release Designation
CCO FCS: January 2, 2002

MFG FCS: January 9, 2002




Yes XED Release

Maintenance Releases

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
12.1(11)YJ - No maintenance plans for an X release.

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Important Notes: N/A

Interim Builds

Short-lived X releases do not provide interim builds.

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Recommended Customer Migration Path

To view the projected release date of the Cisco IOS Software Release 12.1(11)YJ, see the Projected Release Dates for Cisco IOS Software Release Product Bulletin.

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Updated: Oct 28, 2003 Document ID: 30007