[mrtg] Re: MRTG graphing stops after DoS attack

[Jon Heugh]

Typically when a router has very High CPU utilization it will stop
responding to SNMP queries. It is done by design so that the more important
processes get more CPU. same thing with the console and telnet sessions.

----- Original Message -----
From: "Kjetil Kvig" <kjetil at catchcom.com>
To: "MRTG-list (E-post)" <mrtg at list.ee.ethz.ch>
Sent: Thursday, June 06, 2002 4:36 AM
Subject: [mrtg] MRTG graphing stops after DoS attack


>
> I run MRTG on 40-50 Riverstone routers, and when a heavy DoS attack
> comes over the link, MRTG completely stops graphing any traffic on this
particular router...it just displays a grey area until the mrtg daemon is
restarted.
>
> Is there a way to avoid this?
> If not, i will have to put some kind of notifying on to alarm me when it
happens.
>
> Any help appreciated.
>
>
> Regards
> Kjetil Kvig
>
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