Table Of Contents
Release Notes for the Catalyst 3750, 3550,
2970, 2955, 2950, and 2950 LRE Switches, Cisco IOS Release 12.1(14)EA1a
September 8, 2002
Cisco IOS Release 12.1(14)EA1a runs on these switches:
•Catalyst 2950 LRE
Note Use these release notes with the information in the Cisco IOS Release 12.1(14)EA1 release notes for these specific switch platforms.
Note Cisco IOS Release 12.1(14)EA1a is compatible with Catalyst 3750 switch stacks containing stack members running Cisco IOS Release 12.1(14)EA1. We recommend upgrading the entire switch stack to Cisco IOS Release 12.1(14)EA1a if at least one stack member is running this release.
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 Cisco.com.
This document has the following sections:
Resolved Caveat Common to All Switches Supporting this Release
The switches can now authenticate 802.1X clients running the Open 1x supplicant on Linux or the Meetinghouse supplicant on the MacOS.
Resolved Caveats Specific to the Catalyst 3750 and 2970 Switches for this Release
Jumbo frames, when enabled by using the system mtu jumbo size global configuration command, no longer halt the switch CPU.
The switch no longer drops small IP packets (less than 46 bytes in size, including the IP header and payload) that are routed through Cisco Express Forwarding (CEF).
Resolved Caveats Specific to the Catalyst 3750 Switches for this Release
Virtual Terminal Protocol (VTP) pruning works properly even when the switch stack is the Spanning Tree Protocol (STP) root.
After the switch stack reloads, VLAN access control list (ACL) configurations are retained on the correct VLANs.
Which Software Files to Download from Cisco.com
New software releases are posted on Cisco.com and are also available through authorized resellers. These tables list the software filenames for this software release:
•Table 1 (Catalyst 3750)
•Table 2 (Catalyst 3550)
•Table 3 (Catalyst 2970)
•Table 4 (Catalyst 2955)
•Table 5 (Catalyst 2950)
•Table 6 (Catalyst 2950 LRE)
Note 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 for your switch platform.
Caution The Catalyst 3550, 2955, 2950, and 2950LRE crypto images include 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.
These documents provide complete information about the switches and are available at Cisco.com:
•For Catalyst 3750: http://www.cisco.com/univercd/cc/td/doc/product/lan/cat3750/index.htm
•For Catalyst 3550: http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/index.htm
•For Catalyst 2970: http://www.cisco.com/univercd/cc/td/doc/product/lan/cat2970/index.htm
•For Catalyst 2955, 2950, and 2950 LRE: http://www.cisco.com/univercd/cc/td/doc/product/lan/cat2950/index.htm
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Obtaining Technical Assistance
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Technical Assistance Center
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•Priority level 1 (P1)—An existing network is "down," or there is a critical impact to your business operations. You and Cisco will commit all necessary resources around the clock to resolve the situation.
Cisco TAC Website
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If you are a Cisco.com registered user, and you cannot resolve your technical issues by using the Cisco TAC website, you can open a case online at this URL:
If you have Internet access, we recommend that you open P3 and P4 cases online so that you can fully describe the situation and attach any necessary files.
Cisco TAC Escalation Center
The Cisco TAC Escalation Center addresses priority level 1 or priority level 2 issues. These classifications are assigned when severe network degradation significantly impacts business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC engineer automatically opens a case.
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Obtaining Additional Publications and Information
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•Training—Cisco offers world-class networking training. Current offerings in network training are listed at this URL:
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