Comware

On quite a few of our ports were see largish numbers reported in the 'Unknown Protos' counter (show interface). Does anybody know what this counter shows exactly?

(54xx chassis running 13.09)

That is the number of packets received via the interface which were discarded because of an unknown or unsupported protocol. I believe this is fixed in a later version of the software.

More info in rfc2233 http://tools.ietf.org/html/rfc2233

The part I was referring to that was fixed is the unnecessarily increment, even on down ports.

That much I gathered, the info about a bug in that area was useful. We're considering another upgrade round soon-ish anyway.

That said, I'm still not too sure what would make this counter increase. Unknown protos would imply that the frames and/or packets do make sense at some level, so I would assume them to be properly handled at the level they still make sense, not dropped.