Supervision SNMP question
Hi all
I have a problem with a link between a Cisco 7609 and a Cisco 7606.
This link is managed by a service provider with their own routers.
I want to check regularly if there is a good connectivity between my 2 routers (I don't want to check the physical state, but at least layer 2 status)
I browse the mib of my equipment and found in the "cdpcache--> cdpcachetable.cdpcacheentry", several cases of neighbors:
-Instance 10.23
-Instance 11.20
-Instance 13.21
-Instance 24.17
-Etc...
Each Instance correspond to one of the router's neighbors.
I decide to make a comparison of the cdpcachedeviceid, witch is the name of my router, in my case, and everything works fine
But when I got a cut on the link, the instance of disappear in the cache and when it reappears, it takes another number
So my monitor did not until I have manually
I also tried to find the tool LDP or neighbors OSPF to the fields, but I have not found anything.
Any ideas?
Thank you very much
Florent
Wouldn't be better to get entries syslog for the event that occurs (for example, modification of routing adjacency) when the Middle link is lost? You can then define an action (email, raise alert etc.) the arrival of this specific system log entry.
You can also query the routing table and look for some objects (routing entries) that are present only when the remote site is accessible.
Tags: Cisco Network
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