[Info-vax] PEA0: Errors

[Christoph Gartmann]

In article <goour4$h6j$1 at south.jnrs.ja.net>, "Richard Brodie" <R.Brodie at rl.ac.uk> writes:
>
>"Christoph Gartmann" <gartmann at nonsense.immunbio.mpg.de> wrote in message 
>news:gootg7$mej$1 at news.belwue.de...
>
>>   FCS Rx          : 0                  Drops Tx        : 2,654,260
>>   Alignment Rx    : 0                Collisions Tx   : 117,101
>>   Runts Rx        : 0                  Late Colln Tx   : 0
>>   Giants Rx       : 0                  Excessive Colln : 0
>
>Those look clean enough, drops and collisions I would ignore. It's the
>counters that are all 0 here I would worry about. Any of the other
>cluster members showing significant numbers there, like the one(s)
>the switch log calls out, for example?

The Alphas all show collisions and late collions where the boot node
has the highest numbers (206 and 120). But the 3Com switch doesn't
provide these numbers, so I don't know whether they are back to normal now.
At least there are no more PEA0 errors since almost three hours.

>>  So I assume these "drops" are nothing to worry about.
>
>It just means that there are bursts of traffic that the switch port can't
>forward. That's not unexpected where you have some 10Mbit/s
>systems, although it does make them somewhat vulnerable to a
>DoS attack (whether intentional or otherwise). 

Ok, I understand.

Regards,
   Christoph Gartmann

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