I have a 3550-12G Switch. Last Saturday, after issued the "show cdp nei detail", the switch was hung and then crased.
From the "show version", I saw the following message.
System returned to ROM by error - Program Exception (0x0700)!, PC 0x0.
And the IOS Version is 12.1(22)EA1a, is this a bug? I can't find it in bug toolkit.