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Re: When cat comes chasing...

To: pen-test@securityfocus.com
Subject: Re: When cat comes chasing...
From: Antonin Kral <A.Kral@sh.cvut.cz>
Date: Sat, 24 Mar 2007 00:57:32 +0100
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Hi Wali,

* WALI <hkhasgiwale@gmail.com> [2007-03-24 00:50] wrote:
> Crazy Solution: I take out any patch cable and re-inserts it, the problem 
> gets resolved. I reset any switch, the problem gets resolved. I disconnect 
> any uplink cable between the four switches or do a ARP reset thru command 
> line, the problem gets resolved for couple of hours or even days.

This sounds like problems with spanning tree in the network. Do you run
STP? Take a look at the topology changes reported by stp. Or one more
thing - this could happen because of over-fulling CAM (switching) tables
of particular switch. Check if you are not running out of memory
somewhere.

    Cheers,

        Antonin

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