[Nagiosplug-help] check_snmp_int.pl on a cisco 6500

[nagios at mm.quex.org]

On Tue, Dec 07, 2004 at 03:19:51PM -0800, Rossella Mariotti-Jones wrote:

> Thanks for replying so fast. What I'd like to do exactly is to monitor
> (and get and alert) when an interface goes down or comes up.
> 
> I've played a little with the switches and I found that this works:
> 
> [root at ccc-nagios plugins]# ./check_snmp_int.pl -H 10.0.0.X -C string -n
> 
> 1 :DOWN, A :UP, 14:DOWN, CPU:UP, 20:UP, 16:DOWN, 18:DOWN, 12:DOWN,
> 17:DOWN, PortChannel:DOWN, 3 :DOWN, AUI:UP, 2 :DOWN, 19:DOWN, 22:DOWN, 7
> :DOWN, 9 :DOWN, 13:DOWN, 23:DOWN, 6 :DOWN, 4 :DOWN, B :DOWN, 10:UP,
> 15:DOWN, 21:UP, 8 :DOWN, 24:DOWN, 5 :DOWN, 11:UP: 22 int NOK : CRITICAL
> 
> Now, how do I include it into the files and which files? I'm guessing
> probably service.cfg and checkcommands.cfg? Am I on the right track
> considering my goal? Thanks.

If you want an alert EVERY time an interface goes up/down, you'll
need to configure the device to send an SNMP trap to a host.

Otherwise, you can poll it at whatever interval you feel is suitable,
but you won't see if an interface drops out and comes back inside that
interval (or comes up and drops out again).

If you go the polling route, you'll need to make a wrapper to
remember the status of the interfaces during the last poll, and
compare it to the current poll.  If they've changed, return an
alert status.


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