We have WS-C3550-24-EMI. We are currently running 12.1(14)EA1. We upgraded the IOS to 12.2(40)SE and we are encountering this following warning :
!!! WARNING: The switch is not usable !!!
Device test failed for CAM mask read
Also we observed all the interfaces to be down. I am attaching the "show version" and "show post" output.
Any suggestions would be appreciated.