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

Sawyer, David david.sawyer at mckesson.co.uk
Wed Jul 3 16:08:28 MEST 2002

Has any device had a reboot?!?

I ask this because sometimes the interfaces don't keep the same ifIndex
values after a reboot.

It's best to not use ifIndex, but some other form of reference that doesn't
change after a reboot.

David Sawyer

Email: david.sawyer at mckesson.co.uk

   MRTG/RRDTool daemon for Windows9x/ME/2k
   MRTG GUI ConfigMaker for Windows9x/ME/2k

-----Original Message-----
From: Ivette Reategui [mailto:reategi at mail.nlm.nih.gov]
Sent: 03 July 2002 14:48
To: mrtg at list.ee.ethz.ch
Subject: [mrtg] Graphs show innacurate traffic. Monitoring on other side
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

Anyone willing to shed some light on this phenomenon?


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