[mrtg] mrtg incorrect data when over 100MB

[Tobias Oetiker]

Hi Ve2cii,

Yesterday kent at rustyice.co.uk wrote:

> Its caused by the 32 bit counters wrapping too quickly for the sample to make sense of it.
>
> Kent
> Sent from my BlackBerry® wireless device
>
> -----Original Message-----
> From: ve2cii at canasoft.net
> Date: Thu, 6 May 2010 16:19:59
> To: <mrtg at lists.oetiker.ch>
> Subject: [mrtg] mrtg incorrect data when over 100MB
>
>    Hi Everyone,
>
>     I am probing a cisco 3500 and a number of windows machines.  When the
> traffic goes over 150MB via the 3500 to one of the machines I start getting
> incorrect data from the 3500.  I thought the problem was the 3500 and was
> about to replace it but then the problem occured in another 3500 as well
> as one of the machines. I decreased the probe time (cron job) from 5 minutes
> to 3 minutes and that fixed the problem until the traffic went over 250MB.
> I am also logging the mrtg so I can send logs if need be.
>    Any ideas???

use snmpv2 by specifying :::::2 after the target name ... see
mrtg-referenc

cheers
tobi

>
>
> -
> sysadm  cronomagic.com
> e-mail  ve2cii at canasoft.net
>
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-- 
Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland
http://it.oetiker.ch tobi at oetiker.ch ++41 62 775 9902 / sb: -9900