We have a CCR1072 connected to two providers, Cogent and TP. Cogent sends us the full BGP table on a single link. TP splits the network in two seperate links, one for local Bulgaria traffic (coming in on two separate BGP session for failover) and one for International traffic (coming in on two separate BGP sessions for failover). Currently, we see the following:
Session 1a: BGP Local 7450 routes
Session 1b: BGP Local 7450 routes
Session 2a: BGP Int'l 845000 routes
Session 2b: BGP Int'l 845000 routes
Session 3: BGP Total 858000 routes
If we allow all tables to be pushed to the CCR, we run into a situation with over 2.5 million routes. We are using CCR on 6.47.8. Will switching to ROS v7b3 help us in managing this better?
What is the best way to deploy our network in this situation? Would using a BGP-RR help us and if so, what would be the best way to configure the network? We have looked at filtering /23 or lower routes and use a default route entry for such traffic.
As a note, we have 10 Gbps from Cogent and 3 Gbps from Telepoint (coming in on a 10 Gbps SFP+ interface). Also TP does not limit traffic so we need to keep that under control on our side (if we can)
Would appreciate any help and suggestions extended.