Cisco Cisco IOS Software Release 12.2(55)SE

You can also download the image file from the TFTP server to the switch and keep the current image by 
replacing the /overwrite option with the /leave-old-sw option.

For recovery procedures, see the “Troubleshooting” chapter in the software configuration guide for 
this release.

You can assign IP information to your switch by using these methods:

The Express Setup program, as described in the switch getting started guide.

The CLI-based setup program, as described in the switch hardware installation guide.

The DHCP-based autoconfiguration, as described in the switch software configuration guide.

Manually assigning an IP address, as described in the switch software configuration guide.

Support for CDP and LLDP enhancements for exchanging location information with video end 
points for dynamic location-based content distribution from servers.

Support for dynamic creation or attachment of an auth-default ACL on a port that has no configured 
static ACLs configured.

AAA guarantee-first support for enabling or disabling system accounting as the first record.

An option to suppress verbose 802.1x, authentication manager, and MAC authentication bypass 
syslog messages.

Support for increasing the NVRAM buffer size for saving large configuration files. 

ARP tracking probe enhancement to specify a source IP address for a VLAN.

Support for 100EX SFP modules, Version -02 (10-2262-02) or later

Network Edge Access Topology (NEAT) controls the supplicant port during the supplicant 
authentication period. When you connect a supplicant switch to the authenticator switch, the 
authenticator port could be error-disabled when receiving Spanning Tree Protocol (STP) bridge 
protocol data unit  (BPDU) packets and the supplicant switch is not authenticated. The NEAT feature 
is now enhanced to block the supplicant port during authentication, to ensure authentication 
completes. 

Use the dot1x supplicant controlled transient global configuration command to control access to 
the supplicant port during authentication. Use the no form of this command to provide access to the 
supplicant port during the authentication period.