A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Selective Advertisement of Multiple Paths within BGP
Authors : Keyur Patel
Acee Lindem
Filename : draft-keyupate-idr-bgp-selective-add-paths-00.txt
Pages : 8
Date : 2016-03-18
Abstract:
Originally, a BGP speaker was only allowed to advertise one path to
any given address prefix. If the BGP speaker advertised a second
path to a given prefix, the second path was considered to be a
replacement for the first. The BGP ADD-PATH capability was defined
to enable a BGP speaker to advertise multiple paths to a given
address prefix, without one path replacing any of the others.
However, whether a BGP speaker advertises multiple paths for any
given prefix is always a matter of local policy for that BGP speaker.
In certain situations, it is desirable to allow a BGP speaker to
signal to its peers that the peers may advertise multiple
simultaneous paths for certain prefixes but not for others. This
document defines a new BGP capability, the Selective ADD-PATH
capability, that allows a BGP speaker to signal to its peers whether
a particular prefix is or is not eligible to have multiple paths
advertised.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-keyupate-idr-bgp-selective-add-paths/
There's also a htmlized version available at:
https://tools.ietf.org/html/draft-keyupate-idr-bgp-selective-add-paths-00
Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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