From: Shawn Armstrong (email@example.com)
Date: Wed Oct 02 2002 - 15:24:19 PDT
The graphs are being generated using Flowscan and rrdtool.
Stats are coming from all outbound interfaces (verified using flowwatch)
Martin van den Nieuwelaar wrote:
> Shawn Armstrong wrote:
>> I've run into an inconsistancy that I can not explain, and was
>> wondering if someone may have some insight as to what's happening.
>> I'm currently monitoring all the links out of my institution with MRTG
>> as well as running Cflowd. The graph created by MRTG shows current
>> traffic data as In: 40.1 Mb/s Out: 19.0 Mbps. Cflowd graphs show In:
>> 16.2 Mb/s Out: 12.1 Mb/s.
>> All the routers that I'm polling with MRTG are sending flow data to
>> Cflowd, so it's not an issue of routers being left out off the flow
>> data. Also, we are not a transit network, so that's not an issue.
>> Anyone have any ideas?
> How are you creating CFlowd graphs? CFlowd doesn't produce graphs as
> Depending on how many connections off your network you have it would be
> worth checking you are actually getting stats from every outward
> pointing interface.
> I think the issue may lie with how the graphs are being generated. ie.
> there may be a flaw in the way the collected data is turned into the
> graph. Garbage In, Garbage Out as they say.
-- Shawn Armstrong Sr Network Engineer Information Technology Services Systems Services University of Alaska Phone: (907) 474-5498 mailto:firstname.lastname@example.org PGP Key: 0x8F79F610
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