Cisco IOS Software Releases 12.0 Mainline

Cisco IOS Early Deployment Release 12.0(5)WC6, No. 1986

Table Of Contents

Product Bulletin No. 1986

Migration Guide

New Features in Cisco IOS Release 12.0(5)WC6

Detailed Information


Software Download Information

Product Bulletin No. 1986

Cisco IOS Early Deployment
  Release 12.0(5)WC6

This Product Bulletin describes the content and delivery information concerning Cisco IOS® Software release 12.0(5)WC6. This release is specific for the Long-Reach Ethernet (LRE) solution and should be used by the Catalyst 2900 Series LRE XL switches and not the Catalyst 2900 Series XL and Catalyst 3500 Series XL. For more information about the Cisco IOS Software release process, please see Product Bulletin #537.

Migration Guide

Diagram 1 below displays Cisco IOS 12.0(5)WC6 release functionality relative to the 12.0 and 12.0T releases. This diagram identifies the recommended migration path for the Catalyst 2900 Series LRE XL switches only. LRE customers should upgrade from 12.0(5)WC4 directly to 12.0(5)WC6.

Figure 1

Cisco IOS Release 12.0(5)WC Release Train

New Features in Cisco IOS Release 12.0(5)WC6

This is an Early Deployment release for the following platform: Catalyst 2900 LRE XL. Please note that this release is NOT intended for Catalyst 2900 XL and Catalyst 3500 XL switches. The following features will be delivered in the initial release of Cisco IOS 12.0(5)WC6 and incorporate all new features added from 12.0(5)WC4.

New Features:

RADIUS Authentication for switch console

Port Security MAC Address Aging

BDPU Guard

UDLD port auto-recovery

LRE rate selection: Automates the normally tedious manual process of selecting a profile that can be supported on a given interface

Cluster Management Suite enhancements for LRE rate selection

Additional LRE profiles:











LRE-998-15-4-M2 (renamed from PUBLIC-ANSI)

LRE-997-10-4-M2 (renamed from PUBLIC-ETSI)

LRE persistence: LRE link state changes (up/down) are delayed to prevent spanning-tree and MAC address table changes

Additional MIB Support:



IF-MIB (RFC 1573) support for CPE Ethernet ports

RMON-MIB (RFC 1757) support for CPE Ethernet ports

Private VLAN Edge (protected port) for the Fast Ethernet ports on the CISCO585-LRE CPE

Detailed Information

For more information about the platforms and features being delivered in Cisco IOS 12.0(5)WC6, refer to the following Release Notes:


Cisco IOS Software release 12.0(5)WC6 follows the standard Cisco support policy:

Software Download Information

Customers can download Cisco IOS Release 12.0(5)WC6 software from Cisco in the Software Image Library: