A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Advertisement of Multiple Paths in BGP
Author(s) : D. Walton, D. Cook, A. Retana, J. Scudder
Filename : draft-walton-bgp-add-paths-01.txt
Pages : 11
Date : 2002-11-7
The BGP specification [1,2] defines an 'Update-Send Process' to
advertise the routes chosen by the Decision Process to other BGP
speakers. No provisions are made to facilitate the advertisement of
multiple paths to the same destination. In fact, a route with the
same NLRI as a previously advertised route implicitly replaces the
original advertisement.
This document proposes a mechanism that will allow the advertisement
of multiple paths for the same prefix without the new paths
implicitly replacing any previous ones. The essence of the mechanism
is that each path is identified by an arbitrary identifier in
addition to its prefix.
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