[rancid] Re: HP Procuves losing mangement interfaces

Jody Botham jody at ask4.com
Tue Apr 14 08:55:56 UTC 2009

Michael Kania wrote:
> All,
> I've been having a problem with a subset of switches periodically losing 
> their management interfaces. We have 3 data centers set up within the 
> united states and only 1 is having this problem. The problem data center 
> is unique in that it is our largest(roughly ~110 hp procurve 2810s) and 
> CPU usage on each switch averages 35-45%. The servers behind each switch 
> remain connected while the management interface is down. Pinging, 
> snmpget and ssh all fail. The downed management interface on the switch 
> eventually recovers and logs don't show any sign of failure.
> The rancid logs show a timeout when trying to contact that switch and 
> then 3 failures to ssh. I've found that when rancid polls the switch CPU 
> usage spikes dramatically, and my assumption was that the seviere spikes 
> in CPU utilization causes the management interface to fall over. So 
> mitigate against this, Ive turned down the number of retries and the 
> polling interval, but the problem still remains. Anyone familiar with 
> this issue?
> Im using rancid version : 2.3.2~a9 on debian etch
> Thanks,
> Mike Kania
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What's the exact model of 2810 and what firmware are you running?  We've 
had similar issues with ProCurve kit (different model of switch but I 
think the 2810 may have the same ASIC) recently and worked with them to 
resolve the bug in their firmware.  You can mail me off list if you need to.



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