[Info-vax] PEA0: Errors
Christoph Gartmann
gartmann at nonsense.immunbio.mpg.de
Thu Mar 5 10:04:48 EST 2009
In article <003d46c3$0$28517$c3e8da3 at news.astraweb.com>, JF Mezei <jfmezei.spamnot at vaxination.ca> writes:
>If the problem is getting worse, the switch might give your some info.
>Is this a managed switch you can log into and get information about
>ports ?
Yes, the switch tells something about excessive collisions and drop rates.
>This may sound stupid, but are the cable app properly connected ? You
>could have a connector that is loose (either within the other connector,
> or the cable is loose within the connector).
Meanwhile I think I found the reason: the packet sniffer shows that it is an
antispam box that produces huge amounts of illegal tcp sequence numbers every
37 minutes so that the switch gets overwhelmed :-( This box communicates
with one of the cluster members in order to deliver mail.
Regards,
Christoph Gartmann
--
Max-Planck-Institut fuer Phone : +49-761-5108-464 Fax: -80464
Immunbiologie
Postfach 1169 Internet: gartmann at immunbio dot mpg dot de
D-79011 Freiburg, Germany
http://www.immunbio.mpg.de/home/menue.html
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