[c-nsp] 6500 iBGP mesh

[Aubrey Wells]

Hello,
We currently have two iBGP peered edge routers that are eBGP peered to 
several upstreams, as well as several private peering arrangements. 
These two routers are in seperate data centers connected via a Layer-2 
ethernet circuit. Downstream from the edge routers is a mesh of 
Sup2/MSFC2 6506s that are aggregate points for many other POPs. All 
devices are connected via IGP (ospf). Currently, when a customer route 
gets to an edge router, it looks up the destination in the table and 
sometimes has to send the packet over the layer2 circuit to the other 
edge router. Since all traffic at some point goes through a 6500, I 
would perfer to have the 6500 make the decision of which edge router to 
go to for the route, saving me the bandwidth on the L2 interconnection 
between the edge routers, and eliminating a hop for the customer.

My thoughts on solving the problem is to set up a iBGP mesh between the 
6500s and the edge routers so any one route will (almost) never hit both 
edge routers. Will the Sup2 be able to handle a full view from each edge 
router to accomplish my goal? Any suggestions to make it work (outside 
of upgrading to Sup720)?

TIA

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Aubrey Wells
One Ring Networks
aubrey.wells at oneringnetworks.com