Cisco Cisco IOS Software Release 12.2(55)SE 發佈版本通知

Before downloading software, read this section for important information.

The Cisco IOS image is stored as a bin file in a directory that is named with the Cisco IOS release. The 
image is stored on the system board flash device (flash:).

You can use the show version privileged EXEC command to see the software version that is running on 
your switch. 

You can also use the dir filesystem: privileged EXEC command to see the directory names of other 
software images that you might have stored in flash memory.

The upgrade procedures in these release notes describe how to perform the upgrade by using a combined 
tar file. This file contains the Cisco IOS image file. To upgrade the switch through the command-line 
interface (CLI), use the tar file and the archive download-sw privileged EXEC command.

 lists the software filename for this software release.

Before upgrading your switch software, make sure that you have archived copies of the current Cisco 
IOS release and the Cisco IOS release to which you are upgrading. You should keep these archived 
images until you have upgraded all devices in the network to the new Cisco IOS image and until you 
have verified that the new Cisco IOS image works properly in your network.

c3750me-i5k91-tar.122-55.SE.tar

Cisco IOS cryptographic image tar file.
This image has the Kerberos, SSH

1

, SSL

2

, Layer 2+, and 

Layer 3 features.

1.

SSH = Secure Shell

2.

SSL = Secure Socket Layer