On 26/05/2011 08:58, ying-xiang wrote:
in another words,is there a limit to be the amount of one AS BGP routers? we have a network design will put 2500+ routers running ibgp session into a single AS.of course,RR or confederation is required.even so, i am not sure it will be done with this design.AFAIK, router’s memory is a import thing to consume of bgp route prefix.apart from this,what else should get my attention?
2500 routers is quite a large network. For this size, you will probably want to break it down into a number of confederations and create a routing policy for each confederation.
It's not really possible to summarise how to do this in a short email, but things to look out for are:
- RR cpu load and the number of clients on each RR - the size of each confederation - whether or not all your routers need to receive a full routing table - FIB size on your hardware routers - your IGP management - whether you're going to run mpls or not BGP + RRs + confederations will scale to whatever size you need. Nick _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
