Cisco Cisco 5760 Wireless LAN Controller

CSCui57827

When a fiber interface is configured with the default configuration, the following error message is 
displayed: 

ETHCNTR-3-LOOP_BACK_DETECTED 

and the interface is placed in the error-disabled state. 

The workaround is to configure the interface with the no keepalive command. 

CSCui59004

When the Network Time Protocol (NTP) configuration is removed from the controller, the Cisco 
IOS software unexpectedly halts. 

There is no workaround. 

CSCud06451

During many simultaneous dot1x authentication operations, sessions may time out and fail to 
correctly authenticate. The console will continuously report authorization and authentication 
messages. 

There is no workaround. 

CSCuf77489 

The switch can crash when there are concurrent sessions and you try remove an existing password 
from the console or VTY. Various inconsistencies can be seen in the running configuration that can 
result in a crash.

The workaround is to minimize configuration changes to the password, and to use a standalone 
switch when making such changes.

CSCug75799 

All wireless clients become stuck in idle state. Once idle, the clients cannot reconnect to the wireless 
network. New clients can connect, but will become idle on disconnect.

The workaround is to reload the affected device or stack and upgrade to release 3.3.0(SE) or greater. 

CSCug80708 

A port channel is in the “not connect” status when BPDU packets are received. 

There is no workaround. 

CSCug87540 

Layer 3 traffic routed on one switch or stack member fails for newly added devices. 

There is no direct workaround. Reload the impacted switch to recover.