It's not something that I have experience of deploying but Cisco has an Optimised Edge Routing feature (aka Performance Routing) which you may want to take a look at as it is designed for multi-homed scenarios.
Steven -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Chris Wallace Sent: 21 February 2011 21:10 To: [email protected] Subject: [c-nsp] BGP Failover Question I am looking for some help with an issue we recently had with one of our BGP peers recently. I currently have two DIA providers each terminated into their own edge router and I am doing iBGP to exchange routes between the two edge routers. Last week Provider A made a policy change "somewhere" in their network in the middle of the day causing traffic to stop routing. Of course this connection happens to be the preferred route for the majority of our inbound and outbound traffic. I never saw our physical link go down and never saw our peer drop therefore BGP did not stop advertising routes, this caused most of our customers traffic to go nowhere. In order to fix the issue I had to manually shutdown the peer till Provider A confirmed the change they made had been reverted. This isn't the first time we have seen this issue with our various providers, how can I prevent issues like this from happening in the future? ---Chris _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ -------- NetServices UK Ltd, Company No. 07118768, Registered Office: Modwen Road, Waters Edge Business Park, SALFORD, M5 3EZ -------- _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
