[c-nsp] Route Reflector Design

[JH Cockburn]

Hi Mike,
Regarding the next-hop stuff and taken from the RFC (2796):

   In addition, when a RR reflects a route, it should not modify the
   following path attributes: NEXT_HOP, AS_PATH, LOCAL_PREF, and MED.
   Their modification could potential result in routing loops.

Also on page 6 of this RFC the deployment of RR's is discussed under the
heading "9. Configuration and Deployment Considerations"

Hope this helps...

Cheers
JC

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Mike Johnson
Sent: Wednesday, July 02, 2008 2:57 PM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] Route Reflector Design

To all,

Does anyone have any good docs on RR design in service provider networks?

I have read docs detailing a central route reflector and a RR for each POP.
The piece I am missing is how the next-hop attribute reflected for each POP
prefix (say POP1)
into the AS is routed to by other POPs or other routers not peering with the
POP1(say POP10)?

I assume an IGP is used somehow, however, its the internal IGP design I am
not grasping.

thanx in advance

Mike j
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