Last Call: <draft-ietf-pwe3-fat-pw-06.txt> (Flow Aware Transport of Pseudowires over an MPLS Packet Switched Network) to Proposed Standard

The IESG <iesg-secretary@ietf.org> Fri, 06 May 2011 19:34 UTC

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From: The IESG <iesg-secretary@ietf.org>
To: IETF-Announce <ietf-announce@ietf.org>
Subject: Last Call: <draft-ietf-pwe3-fat-pw-06.txt> (Flow Aware Transport of Pseudowires over an MPLS Packet Switched Network) to Proposed Standard
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Date: Fri, 06 May 2011 12:34:49 -0700
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The IESG has received a request from the Pseudowire Emulation Edge to
Edge WG (pwe3) to consider the following document:
- 'Flow Aware Transport of Pseudowires over an MPLS Packet Switched
   Network'
  <draft-ietf-pwe3-fat-pw-06.txt> as a Proposed Standard

The IESG plans to make a decision in the next few weeks, and solicits
final comments on this action. Please send substantive comments to the
ietf@ietf.org mailing lists by 2011-05-20. Exceptionally, comments may be
sent to iesg@ietf.org instead. In either case, please retain the
beginning of the Subject line to allow automated sorting.

The file can be obtained via
http://datatracker.ietf.org/doc/draft-ietf-pwe3-fat-pw/

IESG discussion can be tracked via
http://datatracker.ietf.org/doc/draft-ietf-pwe3-fat-pw/


No IPR declarations have been submitted directly on this I-D.


Abstract

   Where the payload of a pseudowire comprises a number of distinct
   flows, it can be desirable to carry those flows over the equal cost
   multiple paths (ECMPs) that exist in the packet switched network.
   Most forwarding engines are able to hash based on MPLS label stacks
   and use this mechanism to balance MPLS flows over ECMPs.

   This document describes a method of identifying the flows, or flow
   groups, within pseudowires such that Label Switching Routers can
   balance flows at a finer granularity than individual pseudowires.
   The mechanism uses an additional label in the MPLS label stack.