[c-nsp] ISIS/BFD Monitoring

[Alex K.]

Hello everyone,

A customer of mine, ran into interesting problem - his monitoring software
unable to provide him with a meaningful alert, in case a link goes down.

As an ISP, they have lots of links, they run ISIS/BFD on all of them but,
as it regularly happens with carriers, layer 2 never actually goes down
(apart from SDH and dark fiber links, but those are few).

I tested their equipment (mainly Cisco gear) and all it generates, is a
trap wich basically say - "ISIS sission 657843347853325524854 went down".

What they looking for, is a monitoring system, which on the scenario above,
is able to provide the NOC team with a meaningful alert, such as: "ISIS
status on interface <interface description> changed to down. Please notify
the network team".

Any suggestions and sharing of personal experience will be appreciated.

Thank you.