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Procurve 'Unknown Protos' counter

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IJdo Dijkstra
Occasional Contributor

Procurve 'Unknown Protos' counter

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)
3 REPLIES
SCOOTER
Esteemed Contributor
Solution

Re: Procurve 'Unknown Protos' counter

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.
SCOOTER
Esteemed Contributor

Re: Procurve 'Unknown Protos' counter

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.
IJdo Dijkstra
Occasional Contributor

Re: Procurve 'Unknown Protos' counter

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.