[Nagiosplug-help] Check_ifoperstatus Plugin

[Andreas Ericsson]

Naman Latif wrote:
> Hi, I am using "check_ifoperstatus" plugin to monitor various Cisco
> devices. It works fine mostly but for some devices its coming back as
>  "check_ifoperstatus plugin for Nagios monitors operational" in the
> Status Information field.
> 
> I have verified that exactly the same command works from the command
> line and returns the correct info as "Interface xxx is up".
> 
> Randomly it will start working ok. NAGIOS considers this false
> information as OK and doesn't send out the notification.

Nagios doesn't care about the textstring, but rather what exit code the 
plugin returns. You can see the exit-code when running it manually by doing:
echo $?
immediately after you've run it.

> I have seen
> the same message being returned even if the device didn't respond to
> SNMP and NAGIOS considered it as OK state and didn't send out a
> notification. Anyone had the same problem ?
> 

This is more serious. The plugins should all return UNKNOWN (or perhaps 
CRITICAL in this case) when it can't get data to evaluate properly.

-- 
Andreas Ericsson                   andreas.ericsson at op5.se
OP5 AB                             www.op5.se
Lead Developer