Server Bandwidth Utilization

[lamin]

Hello There,
I want to know if NagiosXI can monitor and graph the amount of bandwidth utilization that any given server is using.

Thanks

[mguthrie]

I believe that this is typically done by monitoring the bandwidth on each port of a router or switch, and the "network switch wizard" that ships with XI should automatically set that up for you with any ports that are active.

[lamin]

SO, is there a plugin or script for monitoring the server bandwidth utilization? You meant to tell me that task is only doable in router or switch via a port number.

[tonyyarusso]

Actually, the same plugins that do this for routers and switches will work for the server itself, provided a few things are true about your configuration. Those wizards use SNMP to query common OIDs for octets in and out of a network interface, so if you have SNMP installed/enabled on the server that same information will be available there too. Note however that this information is still on a per-interface level even on the server level, so if you have a server with multiple NICs and are looking for an aggregate measurement of their bandwidth that would require some plugin customization. Additionally, if you wanted to do this without SNMP support that would be possible, but I don't think any of the existing plugins take this approach.