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Cisco IOS Software Releases 12.3 Special and Early Deployments

Cisco IOS Software Release 12.3(2)XE

Document ID: 60180

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Description of the Release

Cisco IOS® Software Release 12.3(2)XE is an ED (XED) release optimized for the following features:

  • Carlos 9
  • NBAR
  • Zutswang
  • IOS configurable DHCP client
  • E-mail SMTP

This release is based upon the Cisco IOS Software 12.3(2)T maintenance release. 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 12.3(2)XE supports these platforms:

Product/Feature Image Name Memory  Requirements
Cisco 1700 Series (Legacy)
  • c1700-y-mz
  • c1700-y7-mz
  • c1700-sy7-mz
  • c1700-sv8y7-mz
  • c1700-k9o3sy7-mz
  • c1700-k9o3sv8y7-mz
  • c1700-bnr2sy7-mz
  • c1700-bk9no3r2sy7-mz
  • c1700-bk9no3r2sv8y7-mz
  • c1710-k9o3sy-mz
  • c1710-bk9no3r2sy-mz
See Release Notes
Cisco 1700 Series (New)
  • c1700-ipbase-mz
  • c1700-ipvoice-mz
  • c1700-entbase-mz
  • c1700-advsecurityk9-mz
  • c1700-spservicesk9-mz
  • c1700-entservicesk9-mz
  • c1700-advipservicesk9-mz
  • c1700-adventerprisek9-mz
  • c1710-bk9no3r2sy-mz
  • c1710-k9o3sy-mz
See Release Notes
Cisco 820
  • c820-v6y6-mz
  • c820-sv6y6-mz
  • c820-ov6y6-mz
  • c820-k9osv6y6-mz
See Release Notes
Cisco 828
  • c828-k9osy6-mz
  • c828-oy6-mz
  • c828-sy6-mz
  • c828-y6-mz
See Release Notes
Cisco 831
  • c831-k9o3sy6-mz
  • c831-k9o3y6-mz
See Release Notes
Cisco 836
  • c836-k9o3sy6-mz
  • c836-k9o3y6-mz
  • c836-k9o3s8y6-mz
See Release Notes
Cisco 837
  • c837-k9o3sy6-mz
  • c837-k9o3y6-mz
See Release Notes
SOHO 91/96/97
  • soho91-k9oy6-mz
  • soho96- k9oy1-mz
  • soho97-k9oy1-mz
See Release Notes
  • ics7700-bk8no3r2sv3y-mz
  • ics7700-bk9no3r2sv3y-mz
  • ics7700-bnr2sv3y-mz
  • ics7700-k8o3sv3y-mz
  • ics7700-k9o3sv3y-mz
  • ics7700-sv12y10-mz
  • ics7700-sv3y-mz
  • ics7700-sv3y10-mz
See Release Notes

Feature Description Example

Current DDR is based on Dynamic Routing Protocols or Line Protocol detecting routing/line failures and triggering a back-up connection.

Many scenarios do not involve Dynamic Routing or the potential for Line Protocol failure. For example:

  • Only Static Routes Used
  • Dual-Ethernet Routers

Note: The features delivered with this XED release are immediately incorporated into Cisco IOS 12.3T and subsequent Cisco IOS 12.3T 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 12.3(2)XE as a short-lived (ED) release for the Cisco 1700, 820, 828, 831, 837, SOHO 91/96/97, and ICS7700 platforms. It is targeted for the Service Provider market.

Lifecycle of Release

Cisco IOS Software Release Reference Guide

Milestones Y2K Compliance Release Designation
CCO FCS: November 20, 2003

MFG FCS: November 27, 2003




Yes ED 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
Cisco IOS Software Release 12.3(2)XE - There will be a maintenance release every seven weeks.

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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 Cisco IOS Software Release 12.3(2)XE, see the Projected Release Dates for Cisco IOS Software Release Product Bulletin.

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Updated: Jul 16, 2004 Document ID: 60180

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