I have a network with a mixture of C3560 and C2900 series switches. As of this week we are lossing the gig port / trunk ports on all of the C2900 series switches. This ranks from WS-C2950, WS-C2950G, WS-C2960, 24 - 48 ports, to PoE and non-PoE. I currently have around 60 C2900 series switchs.
The C3560 series has no problems but one location that only has (2) C3560. The gig port / trunk are no longer lit and shutdown. I have not tried to console into one that was down to see what the error was. I have just unplugged the switches and plug them back in, after they boot the system is up and running.
Is there a know problem with the IOS on the C2900?
I am just confused that is only affecting them and not the C3560, C6509 or C4507.