OT: Re: Calculating Bandwidth with snmp on cisco router]

[Andrew J. Hoyos]

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
> 
> 
> 
> -------------------------------------------------------
> This SF.Net email is sponsored by: SourceForge.net Broadband
> Sign-up now for SourceForge Broadband and get the fastest
> 6.0/768 connection for only $19.95/mo for the first 3 months!
> http://ads.osdn.com/?ad_id%62&alloc_ida84&op=click
> _______________________________________________
> Nagios-users mailing list
> Nagios-users at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/nagios-users
> ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue.
> ::: Messages without supporting info will risk being sent to /dev/null




-------------------------------------------------------
This SF.Net email is sponsored by: SourceForge.net Broadband
Sign-up now for SourceForge Broadband and get the fastest
6.0/768 connection for only $19.95/mo for the first 3 months!
http://ads.osdn.com/?ad_id=2562&alloc_id=6184&op=click
_______________________________________________
Nagios-users mailing list
Nagios-users at lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nagios-users
::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. 
::: Messages without supporting info will risk being sent to /dev/null