[c-nsp] ETH spikes

Dracul chris.garzon at gmail.com
Mon Apr 21 10:58:05 EDT 2008


I'm not sure what happened. But I think I might have done the several things
you mentioned.
Thanks! will be observing more.

chris

On Mon, Apr 21, 2008 at 6:57 PM, Howard Jones <howie at thingy.com> wrote:

> Dracul wrote:
>
> > Hi All,
> >
> > Anybody experienced sudden big spikes with their eth interfaces in their
> > routers? WAN bandwidth is just 2MB but suddenly the MRTG graphs
> > registered a 100MB bandwidth on the eth0 going to the Proxy server.
> > although
> > on the proxy server eth1 (going to customer network) everything is
> > normal.
> >
> > network fluke or something?
> >
> >
> Did you restart the SNMP service on the machine or clear the counters?
> Sometimes you get wierd things like this when MRTG/Cacti/Whatever looks
> every five minutes and sees that the uptime is still going up, but the
> octets counter has gone back to zero, and the only 'logical' explanation is
> that you passed 100M of traffic in the last 5 minutes to wrap the counters.
>
> Howie
>


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