A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Protocol Independent Multicast Working Group of the IETF.
Title : Protocol Independent Multicast ECMP Redirect
Author(s) : Yiqun Cai
Liming Wei
Heidi Ou
Vishal Arya
Sunil Jethwani
Filename : draft-ietf-pim-ecmp-05.txt
Pages : 12
Date : 2012-07-31
Abstract:
A Protocol Independent Multicast (PIM) router uses the Reverse Path
Forwarding (RPF) procedure to select an upstream interface and router
to build forwarding state. When there are equal cost multiple paths
(ECMP), existing implementations often use hash algorithms to select
a path. Such algorithms do not allow the spread of traffic among the
ECMPs according to administrative metrics. This usually leads to
inefficient or ineffective use of network resources. This document
introduces the ECMP Redirect, a mechanism to improve the RPF
procedure over ECMPs. It allows ECMP path selection to be based on
administratively selected metrics, such as data transmission delays,
path preferences and routing metrics.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-pim-ecmp
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-pim-ecmp-05
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-ietf-pim-ecmp-05
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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