Has anyone else had serious issues with either of the new versions of Cisco IOS for the 3550-24PWR switches?
When I run either of these any time a port goes up and down on a switch with IP Phones connected, they all unregister with CallManager. When I downgraded to c3550-i9k2l2q3-tar.121-19.EA1.tar everything works as expected. Can anyone think of anything I am missing here? I have opened a ticket on 121-20.EA1 but expected that 121-19.EA1c would be ok, yet it also exhibits the same problem.