Cisco Cisco IOS Software Release 12.2(52)SE

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Cisco IOS Release 12.2(52)SE and later runs on Catalyst 3750-E and Catalyst 3560-E switches. Cisco 
IOS Release 12.2(52)EX and later runs on Cisco enhanced EtherSwitch service modules.

The Catalyst 3750-E switches support stacking through Cisco StackWise Plus technology. The 
Catalyst 3560-E switches and the Cisco enhanced EtherSwitch service modules do not support switch 
stacking. Unless otherwise noted, the term switch refers to a standalone switch and to a switch stack.

For more information, see the 

 and the 

These release notes include important information about Cisco IOS Release 12.2(52)SE 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, see the Cisco IOS release label on the rear panel of your switch.

If your switch is on, use the show version privileged EXEC command. See the 

If you are upgrading to a new release, see the software upgrade filename for the software version. 
See the 

You can download the switch software from this site (registered Cisco.com users with a login password):

http://tools.cisco.com/support/downloads/go/MDFTree.x?butype=switches

This software release is part of a special release of Cisco IOS software that is not released on the same 
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.

For the complete list of Catalyst 3750-E and Catalyst 3560-E switch documentation and of Cisco 
enhanced EtherSwitch service module documentation, see the 

.