[mrtg] FW: Re: Counter Rollovers

Makai József jozsef.makai at siemens.com
Wed Jan 15 08:53:06 MET 2003

Hi Jim,

1. You can configure the SNMP query. See 'Extended Host Name Syntax' in the
Reference doc.

2. Check the CPU utilisation graph of your computer. It will tell you if the
mrtg should be moved to a stronger box.


> Thanks.  From the sounds of it, what I'm seeing then must be 
> loss of SNMP
> packets.
> Does mrtg have any mechanism to deal with missing SNMP 
> responses - such as
> requerying the device?  Like I say, I only notice it when the 
> network is
> relatively busy.  The traffice is Internet traffic, though, 
> measurable only
> in the range of 200-250 kB/s on any given port (HP 2400M 
> switch).  I can't
> imagine that it's either the switch or network congestion as 
> the cause of
> the packet loss. It seems more likely that the loss is ocurring at the
> machine running mrtg, which does get very busy at times (also 
> running mySQL
> and email).  Any solutions, short of moving mrtg to a different box?
> Jim

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