- Bronze, 100 points or more
We're moving from one internet connection to two and our isp is going to have us use bgp for our route advertisement. I've looked at some bgp configs, and understand how we can do failover in the event of an ISP failure, but I'm also looking to be prepared for an equipment failure on our side.
I am looking for a way to monitor my border router's access to an inside host on my network, and use that to stop it from advertising the route to the ISP.
I'm hoping to prevent the following from causing an issue:
Is there a way to do this?
Thanks in advance,
Hi RIck, [Pls Rate if HELPS]
BGP will stop advertising the Prefixes if the IGP withdraw's the prefixes.
You can use OSPF to manipulate the IGP Network using COST. If the Primary (Eg: Switch in core) fails, the fail-over will happen for Secondary Switch (Eg: Secondary Switch connected to Sec Router with Sec.. ISP). By avoiding the Cross-Connect between the Primary Router and Secondary Switch the same can be acheived.
In viceversa, if the Primary Restores, the OSPF Routes are synchronised, the COST comes into the Picture and the traffic perfers Priamry Link, since there are Cross-Connect between the Pri Switch & Sec Switch.
Hope I am Informative.
Pls Rate if HELPS
Guru Prasad R