I had a 65k crash at the weekend when a module was replaced (WS-X6548-GE-TX). The switch has WS-SUP32-10GE-3B and most likely crashed due a memory issue after initial analysis of the logs. IOS is 12.2(18)SXF9.
After the switch came back up a lot of servers on all modules could not connect to anything even though the NIC was up on the switch and server sides. It could be fixed by shut no shut on either side.
Has anyone seen this behaviour and how to avoid this in the future?