New draft on Extra class LSP

[Kohei Shiomoto <Shiomoto.Kohei@lab.ntt.co.jp>]

Sorry for the incorrect subject in the previous mail. I resend it with a 
new subject.

Hi, all

Please notice that a new internet-draft has been posted. The draft is 
targeted at the IETF57 ccamp meeting. The draft is prepared to initiate 
the discussion at the ccamp-wg on the extra class LSP service, which 
makes use of reserved but unallocated bandwidth for the protecting LSPs 
in the pre-planned LSP re-routing recovery method (including shared mesh 
restoration).  Comments and feedbacks are highly appreciated.
Thanks.
--
Kohei Shiomoto
NTT Network Innovation Laboratories
Phone +81 422 59 4402, Fax +81 422 59 6387
3-9-11 Midori, Musashino, Tokyo 180-8585, Japan

------------------------------------------------------------------------------------------------
A New Internet-Draft is available from the on-line Internet-Drafts 
directories

   Title        : Extra class LSP service using protecting resources in
                  GMPLS networks
   Author(s)    : K. Shimano et al.
   Filename    : draft-pil-ccamp-extra-lsp-00.txt
   Pages        : 8
   Date        : 2003-6-27
   
This document provides the problem statement on a extra class LSP ser-
vice and addresses the issues.  The extra class LSP uses the resource
reserved but not allocated for the protecting LSPs in the pre-planned
LSP re-routing without extra-traffic (including shared mesh) recovery
method.  Network utilization is improved because the resource reserved
for the protecting LSPs are used for the extra class LSPs.  The extra
class LSP is preempted less frequently than the conventional priority
mechanism using setup and holding priorities because the resource
reserved for the protecting LSPs is allocated only if the working LSP
fails, which is usually expected to rarely occur.  This document pro-
poses the extra class LSP service using the resource reserved but not
allocated for the protecting LSP at the provisioning phase.  This docu-
ment addresses the issues on the extra class LSP: (1) advertisement of
available resource, (2) extra class LSP indication in signaling message
(3) extra class LSP preemption signaling, and (4) preventing unintended
connections.

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