Best practice for BGP session/ full routes for customer

Mon Jul 7 18:33:12 UTC 2014

Hello everyone!

I have quick question on how you provide full BGP table to downstream
customers?

Most of large networks have few border routers ("Internet gateways") which
get full table feed and then they have "Access routers" on which customers
are terminated. Now I don't think it makes sense to push full routing table
on the "access routers" and simply their default points to border routers.

In this scenario what is best practice for giving full table to downstream?

   1. Having multi-hop BGP session with a loopback on "border router" for
   injecting full table in customer router and another BGP session with access
   router for receiving routes? (messy!)

   2. Injecting full table in just all access routers so that it can be
   provided whenever needed?

   3. Any other?

Thanks in advance!

-- 

Anurag Bhatia
anuragbhatia.com

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