[c-nsp] Reset an interface automatically when it goes down?

[Tassos Chatzithomaoglou]

You can use EEM to watch for a specific syslog output and then execute the clear command.

--
Tassos

Ed Ravin wrote on 26/1/2007 5:12 μμ:
> On Fri, Jan 26, 2007 at 11:23:19AM +0100, Wolfgang Roth wrote:
>> we use a Cisco 3640 with NM-2V and VIC-2BRI-NT/T modules as VoIP/PTSN 
>> gateway. The device is running a 12.4(12) enterprise image.
>>
>> Sometimes unpredictable one of the BRI interfaces goes down (with ISDN 
>> state 'AWAITING_ESTABLISHMENT'). Until now we weren't able to find a reason 
>> for this behaviour. Resetting the interface with the 'clear interface' 
>> command immediately brings the interface up again.
>>
>> What we want to do now is to automatically execute a 'clear interface 
>> BRIX/Y' command when this happens. Is that possible and what would be the 
>> best way to achieve this (cron job, TCL script, ...)?
> 
> I'm already doing this with a cron job on a Unix host that tests for
> what we think is the failure condition and then uses RANCID to log in
> through a still-working router interface and run the clear int command.
> 
> But I would much rather do it in TCL since it would be self-contained on
> the router.  Have not had the time to do that yet, but everyone who knows
> how on this list says it can be done.  Try searching the list archives
> for messages about TCL or "Event Manager", you'll find lots of useful
> info and links.
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