I have a Dell blade chassis with a pair of WS-CBS3030-DEL-F switch modules. When I plugged in a cisco copper gbic, traffic paused for several seconds. I don't think it could have been a spanning tree issue as the roots for the vlans were upstream and the interface was disabled before the gbic was plugged in. Traffic did resume processing. There was no log entry to boot. IOS version is 12.2(44)SE.
I've never had a problem with gbics before, has anyone ever seen behavior like this?