Table Of Contents
Release Notes for the Catalyst 3750 and 3750-E Switches, Cisco IOS Release 12.2(55)EY
January 18, 2011
Cisco IOS Release 12.2(55)EY runs on Catalyst 3750 and Catalyst 3750-E switches.
Note Use these release notes in conjunction with the information in these documents:
These release notes include important information about this Cisco IOS release and any limitations, restrictions, and caveats that apply to it. Verify that these release notes are correct for your switch:
•If you are installing a new switch, refer to the Cisco IOS release label on the rear panel of your switch.
•If your switch is on, use the show version privileged EXEC command.
•If you are upgrading to a new release, refer to the software upgrade filename for the software version. See the "Deciding Which Software Files to Use" section.
You can download the switch software from this site (for registered Cisco.com users with a login password):
This software release is part of a special release of Cisco IOS software that is not released on the same 8-week maintenance cycle that is used for other platforms. As maintenance releases and future software releases become available, they will be posted to Cisco.com in the Cisco IOS software area.
This information is in the release notes:
Deciding Which Software Files to Use
The upgrade procedures in the Release Notes for the Catalyst 3750, 3560, 2975, 2960-S, and 2960 Switches, Cisco IOS Release 12.2(55)SE and the Release Notes for Catalyst 3750-X, 3750-E, 3560-X, and 3560-E Switches, Cisco IOS Release 12.2(55)SE describe how to perform the upgrade by using a combined tar file. This file contains both the Cisco IOS image file and the files needed for CMS. You must use the combined tar file to upgrade the switch through CMS. To upgrade the switch through the command-line interface (CLI), use the tar file and the archive download-sw privileged EXEC command.
Table 1 lists the filenames for this software release.
New Hardware Features
These new hardware features are in this release:
•Catalyst 3750V2-24FS-S—24 small-form factor pluggable (SFP) module slots (downlink) and 2 SFP module slots (uplink)
Cisco IOS Caveats for Cisco IOS Release 12.2(55)EY
No new caveats were opened or resolved in this release for the Catalyst 3750 and 3750-E switch. This release is based on Cisco IOS Release 12.2(55)SE. For a list of open and resolved caveats for Cisco IOS Release 12.2(55)SE, refer to these documents:
These documents provide complete information about the Catalyst 3750 switches and are available at Cisco.com: http://www.cisco.com/go/cat3750_docs
•Catalyst 3750 Switch Software Configuration Guide
•Catalyst 3750 Switch Command Reference
•Catalyst 3750, 3560, 3550, 2975, 2970, 2960, and 2960-S Switch System Message Guide
•Catalyst 3750 Switch Hardware Installation Guide
•Catalyst 3750 Getting Started Guide
•Regulatory Compliance and Safety Information for the Catalyst 3750 Switch
•Catalyst 3750-E and Catalyst 3560-E Switch Software Configuration Guide
•Catalyst 3750-E and Catalyst 3560-E Switch Command Reference
•Catalyst 3750-E and Catalyst 3560-E Switch Hardware Installation Guide
•Catalyst 3750-E Switch Getting Started Guide
•Regulatory Compliance and Safety Information for the Catalyst 3750-E and Catalyst 3560-E Switch
For other information about related products, refer to these documents:
•Cisco RPS 300 Redundant Power System Hardware Installation Guide
•Cisco RPS 675 Redundant Power System Hardware Installation Guide
•Information about Cisco SFP, SFP+, and GBIC modules is available from this Cisco.com site:
SFP compatibility matrix documents are available from this Cisco.com site:
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What's New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:
Subscribe to the What's New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service and Cisco currently supports RSS version 2.0.
This document is to be used in conjunction with the documents listed in the "Obtaining Documentation and Submitting a Service Request" section.
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Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and coincidental.
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