Name: draft-chen-bgp-group-path-update-02
Title: Advertisement of the Group Best Paths in BGP
State: Active
Authors: Enke Chen
Group: Individual Submissions (none)
Date: 2004-09-29
In this document we first identify the (neighbor-AS based) Group Best Paths
for an address prefix as the sufficient subset that can be advertised by a
BGP route reflector or a BGP confederation ASBR to eliminate the MED-type
route oscillations in a network. We then propose a BGP extension to support
the advertisement of the Group Best Paths by a route reflector or a
confederation ASBR. The extension also allows the advertisement of all the
paths in a group that survive the MED comparison, thus achieving the same
routing consistency as the full IBGP mesh. The proposed mechanisms are
designed such that the vast majority of the BGP speakers in a network need
only minor software changes in order to deploy the mechanisms.
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