Re: [nsp] GEIP+ overruns/missed packets

From: Jim Warner (warner@cats.UCSC.EDU)
Date: Mon Aug 06 2001 - 15:01:41 EDT


We had something that looked like a missed packet (or lost interrupt)
problem on our GE/IP+. It appeared to me that *all* the packet
received interrupts were being missed all the traffic was scooped
up by a scavenger procedure that ran at the next clock tick.

Our big symptom was that pinging the router over the LAN produced
a delay spread that looked like the 2nd panel in:

    http://people.ucsc.edu/~warner/geip.html

We upgraded to 12.0(18)S and our problems went away.

-jim



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