OT: Re: Calculating Bandwidth with snmp on cisco router]
Andrew J. Hoyos
hoyosa at msoe.edu
Wed May 19 03:54:45 CEST 2004
Instead of doing it via SNMP, cisco routers and the like usually have
a 'netflow' feature. There are many tools that can use this
information.
The best, IMHO, is flowscan
(http://net.doit.wisc.edu/~plonka/flowscan/). There is a good HOWTO on
setting this up located at:
http://netflowguide.com/?page=guide&guidepage=1
We use this to graph campus bandwidth, and I know there is also a
module called 'flowmonitor' that can do ISP style bandwidth watching.
If you don't want to go down that route, cricket (cricket.sf.net) can
do monitoring of bw, I think it also has features for notifications.
While nagios could probably also do this, via some SNMP plugin,
doesn't really give you any quantative history of the data.
--
Andrew J. Hoyos
Asst. Unix Administrator
Milwaukee School of Engineering
1025 N. Broadway, Milwaukee, Wisconsin 53202
+1(414)277-2414 email: hoyosa at msoe.edu
On 05/18/04 21:07, Jennifer Fountain wrote:
> Does anyone here monitor bandwidth on a cisco router? If so, how did you
> do it and how do you display your results? I am looking to monitor when
> our wan networks max out their bandwidth or approach maxing their
> bandwidth. Thanks for any info.
>
>
>
> Kind Regards,
>
> Jennifer Fountain
> R&B Inc
> 3400 E Walnut Street
> Colmar, PA 18915
>
>
>
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