The MPLS WG Archive

["Adrian Farrel" <adrian@olddog.co.uk>]

Hi,

In Seoul, while discussing draft-farrel-mpls-preemption-00.txt, I asked whether
draft-ietf-mpls-soft-preemption-01.txt was now fully redundant or whether it would be
respun for a different problem space.

As far as I can see, the resubmission as 02 is unchanged from 01 so I assume that this has
been done simply to keep the draft alive. Can the authors/chairs/WG comment on the plans
for this draft.

Thanks,
Adrian

Hint: I am scheduled to respin draft-farrel-mpls-preemption to fully address GMPLS
requirements (it already addresses MPLS requirements). However, I am only going to do this
if there really is support from the WG. I see no value in both drafts addressing the same
problem space.

----- Original Message ----- 
From: <Internet-Drafts@ietf.org>
To: <IETF-Announce:>
Cc: <mpls@UU.NET>
Sent: Tuesday, March 23, 2004 9:46 PM
Subject: I-D ACTION:draft-ietf-mpls-soft-preemption-02.txt


> A New Internet-Draft is available from the on-line Internet-Drafts directories.
> This draft is a work item of the Multiprotocol Label Switching Working Group of the
IETF.
>
> Title : MPLS Traffic Engineering Soft preemption
> Author(s) : M. Meyer, et al.
> Filename : draft-ietf-mpls-soft-preemption-02.txt
> Pages : 10
> Date : 2004-3-23
>
> This draft documents MPLS TE Soft Preemption, a suite of protocol
> modifications extending the current concept of preemption with the goal
> of reducing/eliminating traffic disruption of preempted TE LSPs.  Under
> present RSVP-TE signaling methods, LSPs are immediately displaced upon
> preemption.  The introduction of a new preemption pending flag helps
> more gracefully mitigate the re-route process of displaced LSPs.  For
> the brief period soft preemption is activated, reservations (though not
> necessarily traffic levels) are in effect overbooked until the LSP can
> be re-routed.  For this reason, the feature is primarily interesting in
> packet oriented MPLS networks with Diffserv and TE capabilities.
>
> A URL for this Internet-Draft is:
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