[mrtg] Re: Graphs show innacurate traffic. Monitoring on otherside of the link shows correct traffic.

[Ivette Reategui]

Thanks, Marc and David, for taking the time to think about this.

I found out what the problem was. We monitor several devices, each has
its own cfg file.  There is a mrtg.cfg file, which includes each
device's cfg file.  One of those devices was taken out of production. 
So when mrtg polled it there was a "no response" message on each
interface.  This delayed the polls on the rest of the devices, which
caused inaccurate averages.

So that's the story.  Thanks.

- Ivette

>>> "Marc Bilodeau" <marc at somix.com> 07/03/02 10:05AM >>>
Are you trending the MIB-II InOctets and OutOctets? If so, maybe the
vendor has their own port counters in their enterprise mibs. Some
vendors use their own mibs over MIB-II standards. If you're not using
MIB-II OIDs, what OIDs are you using to measure traffic? What version
of
MRTG are you using?

Marc

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-----Original Message-----
From: mrtg-bounce at list.ee.ethz.ch [mailto:mrtg-bounce at list.ee.ethz.ch]

On Behalf Of Ivette Reategui
Sent: Wednesday, July 03, 2002 9:48 AM
To: mrtg at list.ee.ethz.ch 
Subject: [mrtg] Graphs show innacurate traffic. Monitoring on
otherside
of the link shows correct traffic.


Hi everyone,

We are monitoring traffic on a link.  On our side of the link, we
monitor an atm switch and a Juniper router involved in the connection.

>From the other side traffic graphs are generated by monitoring a
Juniper
switch.  So traffic graphs for both sides' had been identical. 
However
as of last Thursday our graphs show a sharp decrease in traffic (which
is inaccurate), while the other side's graphs show traffic as usual. 
I
contacted our network administrator, he said nothing has changed on
our
side.

Anyone willing to shed some light on this phenomenon?

TIA

- Ivette

Ivette Reategui
Computer Consultant
SAIC
Communications Engineering Branch
National Library of Medicine
Phone: (301) 435-3221
Email: reategi at mail.nlm.nih.gov 

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