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re: BST - BGP Scalable Transport
From: Cengiz Alaettinoglu <cengiz () packetdesign com>
Date: 11 Feb 2003 08:43:04 -0800

Hi Ron,

On Mon, 2003-02-10 at 11:24, Ron da Silva wrote:

Questions that missed the cutoff at the end of your preso:

Most operators have some per-peer inbound policies.  Since the
next hop adjacency may move around due to chaning primaries,
where do you configure the policy ? (all routers?)

Yes. The entire pool of routers responsible for ebgp peers on that
location needs to share the configuration information because any one of
them could be the primary for that peer.

Also, some of those polices include modifying attributes before
forwarded the update internally via iBGP.  Where does the
policy get implemented? (on the NA box?)

Policy is applied at the primary and the secondary routers for the ebgp
peer. The bst sessions used for handling the ebgp peer and ibgp peers
are different and the rest of the routers will only learn the modified
routes from the primary.


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