I use Cacti over SNMP to monitor stuff like that.

--
Robert G. Werner
Oracle Apps Systems Administrator
rwer...@pomwonderful.com
559.521.5089

From: Serge Dukic [mailto:serge.du...@orionhealth.com]
Sent: Tuesday, February 14, 2012 2:22 PM
To: nagios-users@lists.sourceforge.net
Subject: [Nagios-users] Plugin to monitor bandwidth usage

Hi,

I've got some strange issues with a web application, where it loses 
connectivity at a certain time each night. After a bit of investigation, I 
think that this might be related to network congestion. i.e. the backups are 
taking up all of the available bandwidth and as a result the web app 
connections time out.

I'd like to use a plugin to monitor the amount of bandwidth which is being used 
by the server as a whole to see if it is ever saturated. e.g. if bandwidth 
remains at 90% of 1Gb/s send a warning

Does anyone know of a plugin which would allow me to monitor this?

Thank you
Serge
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Virtualization & Cloud Management Using Capacity Planning
Cloud computing makes use of virtualization - but cloud computing 
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