[mrtg] Re: MRTG not reflecting true interface usage

tony bourke tony at vegan.net
Thu Mar 21 18:12:02 MET 2002


32 bit counters strikes again!

In a 5 minute interval, no SNMP program (MRTG, RRDTool, or anything else)
can measure traffic greater than 115 Mbps because of the rollover problem.
You're only solution is to use 64-bit counters.  You can specifiy this in
the config by using SNMPv2 I believe.

Tony

On Thu, 21 Mar 2002, Stephen May wrote:

>
> For some reason one of my MRTG graphs isn't reflecting the true usage of
> trhe interface it's monitoring.  The graph is showing the bandwidth at about
> 35Mb/s, whereas the router is showing the bandwidth at about 140Mb/s!  The
> config file is pointing at the correct interface, and has the correct
> interface speed setting.  Anyone got any suggestions as to what could be
> causing this difference?
>
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Tony Bourke				tony at vegan.net



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