[mrtg] Re: Graph is different

PAUL WILLIAMSON pwilliamson at mandtbank.com
Sat Jun 11 14:48:45 MEST 2005

>>> "Pavel Ruzicka" <pavouk at pavouk.org> 06/11/05 8:29 AM >>>

> > What I still did not understand is why it happen on the eth
> > only, what traffic is generated/requested by/from the router?
> It can be some unicast traffic, which ends on the router.
> For example ICMP ping to router.
> Or maybe some huge broadcast or multicast traffic, which is not 
> distributed to other networks. I don't know now if broadcast or 
> multicast traffic is countered in to IfOutOctets.
> If you can't use ethereal or similar packet grabber/analyzer, 
> you can enable on router IP accounting or NetFlow.

It could be a non-routable protocol.  Something like 
NetBIOS isn't routable (I think).

The router doesn't just make up packets.  MRTG 
only polls for numbers, so it doesn't just pull numbers 
out of thin air either.


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