From: Roman Rodichev (roman@iementor.com)
Date: Wed Oct 17 2007 - 18:55:55 ART
You can probably research enhanced object tracking and EEM in 12.4T to
achieve your goal. I'll take a look at it myself if such monitoring is
possible
Roman Rodichev
5xCCIE #7927 (R&S, Security, Voice, Storage, Service Provider)
Instructor, Content Developer
ieMentor Corporation http://www.iementor.com
Y!M: roman7927
On 10/17/07, Alex Steer <alex.steer@eison.co.uk> wrote:
>
> I was looking at monitoring route changes for a customer.
> (Un)fortunately they have a very resilient network and devices don't
> become unreachable upon failure of pretty much anything. Typically they
> have 2 main MPLS circuits and a backup mesh VPN (not adjacent to
> customer equipment).
>
> I looked at using SNMP to report routing table changes, its pretty
> static unless we make changes. The best I could do was monitor a mib
> route change counter. This counter starts at 0 and just keeps going up.
> Never does it go back down to 0 after a certain period, so pretty
> useless. I'm sure there must be a way without doing something daft like
> rmon but I'm not a CCIE and don't know how.
>
> Used different loopback interfaces in the end to determine when the
> primary network was down. Still can't tell if we loose one of the main
> circuits though as they are connected behind CPEs. I hope the SP can.
>
> Ooow look, the lights off
>
> Alex
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