Nagios: Monitoring WAN link status.

[Kevin Keane]

Mike Saldivar wrote:
> On Tue, May 19, 2009 at 10:13 AM, Jimmyboy <jimmyjose2980 at gmail.com 
> <mailto:jimmyjose2980 at gmail.com>> wrote:
>
>     Hello Experts,
>      
>     After installing Nagios 3.0.6 on Ubuntu 8.10 (VM senario), I have
>     managed to configure it to monitor my Windows-based machines and
>     Route-Switch Modules (RSMs).
>      
>     I read the documentation which says that Nagios is a system and
>     network monitoring application. It watches hosts and services,
>     etc. However, I was curious to know whether it could also be
>     configured to monitor WAN links' status, latency, flap-detection, etc.
>      
>
>
> Yes, if your network devices support SNMP, they can report via SNMP to 
> Nagios, and you can monitor anything your device is willing to report 
> via SNMP.
You could also use a simple ping check to the remote router. SNMP is 
great to check internals of a device. If your interest is whether 
something is up, simple is best. Also, since the remote router has no 
idea about latency on the WAN link, that is something only ping can tell.

Flap-detection is built into Nagios itself. It's enabled in the default 
configurations, so you usually don't have to do anything about it.


-- 
Kevin Keane
Owner
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