Cisco Catalyst 2950 LRE Series Switches

Release Notes for the Catalyst 2950 LRE Switches, Cisco IOS Release 12.1(14)EA1b

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Release Notes for the Catalyst 2950 LRE Switches, Cisco IOS Release 12.1(14)EA1b

Table Of Contents

Release Notes for the Catalyst 2950 LRE Switches, Cisco IOS Release 12.1(14)EA1b


Resolved Caveat in Cisco IOS Release 12.1(14)EA1b

Which Software Files to Download from

Related Documentation

Obtaining Documentation

Documentation CD-ROM

Ordering Documentation

Documentation Feedback

Obtaining Technical Assistance

Technical Assistance Center

Cisco TAC Website

Cisco TAC Escalation Center

Obtaining Additional Publications and Information

Release Notes for the Catalyst 2950 LRE Switches, Cisco IOS Release 12.1(14)EA1b

September 2003

Cisco IOS Release 12.1(14)EA1b runs on the Catalyst 2950 Long-Reach Ethernet (LRE) switches.

Note Use these release notes with the information in the Cisco IOS Release 12.1(14)EA1 release notes and the Cisco IOS Release notes 12.1(14)EA1a.

Caution Do not run Cisco IOS Release 12.1(14)EA1 or 12.1(14)EA1a on a Catalyst 2950 LRE switch if there are Cisco 585 LRE CPE devices connected to the switch.

These release notes include important information about this release and any caveats that apply to it. See the "Related Documentation" section for links to the switch documentation on


This document has the following sections:

Resolved Caveat in Cisco IOS Release 12.1(14)EA1b

Which Software Files to Download from

Related Documentation

Obtaining Documentation

Obtaining Technical Assistance

Obtaining Additional Publications and Information

Resolved Caveat in Cisco IOS Release 12.1(14)EA1b

This severity 2 caveat was resolved in this release:


A Catalyst 2950 LRE switch no longer reloads under these conditions:

All of the LRE interfaces have Cisco 585 LRE customer premises equipment (CPE) devices connected to them.

At least one end device (for example, a PC) is connected to the Ethernet port on all of the LRE CPE devices.

Traffic is flowing between all of the end devices, the LRE CPE devices, and the LRE switch.

An LRE link on at least one LRE CPE device is shut down and then re-established.

Which Software Files to Download from

Table 1 lists the software filenames for this release.

Caution The Catalyst 2950 LRE cryptographic image includes a bootloader upgrade. The bootloader can take up to 30 seconds to upgrade. Do not power cycle the switch while you are copying this image to the switch. If a power failure occurs when you are copying this image to the switch, call Cisco Systems immediately.

Table 1 Cisco IOS Software Image Files for Catalyst 2950 Switches 



Catalyst 2950 LRE image files and CMS files


Catalyst 2950 LRE cryptographic image file and CMS files

We recommend that you download the combined .tar file that contains the image file and the HTML files. For instructions on how to upgrade your switch, refer to the Cisco IOS Release 12.1(14)EA1 release notes.

Related Documentation

These documents provide complete information about the Catalyst 2950 LRE switches and are available at

Catalyst 2950 Desktop Switch Hardware Installation Guide (order number DOC-7811157=)

Catalyst 2950 and Catalyst 2955 Desktop Switch Software Configuration Guide (order number DOC-7811380=)

Catalyst 2950 and Catalyst 2955 Desktop Switch Command Reference (order number DOC-7811381=)

Catalyst 2950 and Catalyst 2955 Desktop Switch System Message Guide (order number DOC-7814233=)

For other information about related products, refer to these documents:

Cisco LRE CPE Hardware Installation Guide (order number DOC-7811469=)

Cluster Management Suite (CMS) online help (available only from the switch CMS software)

Installation Notes for the Catalyst Family Small-Form-Factor Pluggable Modules (order number DOC-7815160=)

Installation and Warranty Notes for the Cisco LRE 48 POTS Splitter (order number DOC-7812250=)

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We appreciate your comments.

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