Hi All,
I was wondering maybe you have some experience on how to monitor wan links. (Up or Down)
The links I need to monitor are layer 2. The problem is that usually the physical interface will stay up and the link will be down at the carrier network so both ends of link will be up.

The best visual affect will be to blink the link on map. (Probably not possible).

Maybe you have an idea.

Appreciate the help.