I'm seeing events from two of my switches which show critical alarms for high error rates on a few ports, but investigation of the ports shows nothing. No errors via "show int", no errors via "show counters int" or "show int counters errors". Nothing appears to be wrong, but CiscoWorks opened and closed events for one of these interfaces 17 times overnight.
I've tried removing the device from DFM and rediscovering, but it still happens so I don't think it is a corruption. I notice when looking at the events it shows high valudes for InputPacketErrorRate (69000+ pps on tengig interface). I don't see any errors on the interface on the other side of the link that match the timestamps, but the opposing interfaces log the same kinds of InputPacketErrorRate events at other times.
I'm having trouble getting our support provider to believe there may be an issue as they only trust in the CLI.
Does anyone know what this counter in DFM is showing? I'd like to hook it up to a graph in OpenView to prove it isn't CiscoWorks making it up.