I'm trying to find a possible cause for momentary loss of trunking on a Gig Interface. There's no apparent Layer 1 loss and the other end of the connection doesn't experience any impact to it's trunking. Here's the log entry.
Apr 8 15:25:13.413 EST: %DTP-5-NONTRUNKPORTON: Port Gi0/12 has become non-trunk
Apr 8 15:25:13.564 EST: %DTP-5-TRUNKPORTON: Port Gi0/12 has become dot1q trunk