[Pce] Fw: Time for a liaison to the ITU
"Adrian Farrel" <adrian@olddog.co.uk> Fri, 09 November 2007 22:32 UTC
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From: Adrian Farrel <adrian@olddog.co.uk>
To: pce@ietf.org
Date: Fri, 09 Nov 2007 22:32:09 -0000
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Cc: Ross Callon <rcallon@juniper.net>, Scott Bradner <sob@harvard.edu>
Subject: [Pce] Fw: Time for a liaison to the ITU
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Hi working group, In recent months there has been a resurgence of interest in the inter-layer characteristics of the ASON architecture defined in the ITU-T. This has included discussions in Study Group 15 Questions 12 and 14 about how to provide routing in a layered network. As you may recall, Study Group 15 recently recognized PCE as an option for handling their multi-level routing requirements , and published G.7715.2 describing how a separate path computation component could be used. So we think that draft-ietf-pce-inter-layer-frwk-05.txt and draft-ietf-pce-inter-layer-req-05.txt may be of interest to them and propose to send the short liaison below. Your comments are welcomed. Regards, Adrian and JP === To: ITU-T Q12/15 and Q14/15 Cc: Stephen Trowbridge, Kam Lam, Malcolm Betts, Ross Callon, Dave Ward, Scott Bradner Subject: Application of PCE to Inter-Layer Networks For: Information The Path Computation Element (PCE) working group of the IETF is aware that your Questions have recently been discussing the inter-layer aspects of the ASON architecture and particularly how to select routes across a multi-layer network, and how to represent within a higher layer network the potential or real connectivity across a lower layer network. In the light of G.7715.2 we believe that you may be interested in some work being discussed in the PCE working group. "Framework for PCE-Based Inter-Layer MPLS and GMPLS Traffic Engineering" may be found at http://www.ietf.org/internet-drafts/draft-ietf-pce-inter-layer-frwk-05.txt. This document should be read in the context of the general PCE architecture described in "A Path Computation Element (PCE)-Based Architecture" http://www.ietf.org/rfc/rfc4655.txt Although not specifically targeted at the ASON architecture, we would welcome any comments that you have on draft-ietf-pce-inter-layer-frwk-05.txt, and invite interested parties to contribute either through the liaison process or via the PCE working group mailing list details of which can be found at the PCE working group charter page http://www.ietf.org/html.charters/pce-charter.html We are also looking at the requirements driven by inter-layer routing for extensions to the PCE Protocol (PCEP) used for communication between Path Computation Clients (PCCs) and PCEs. These can be found in "PCC-PCE Communication and PCE Discovery Requirements for Inter-Layer Traffic Engineering " http://www.ietf.org/internet-drafts/draft-ietf-pce-inter-layer-req-05.txt Best regards, JP Vasseur and Adrian Farrel IETF PCE working group co-chairs _______________________________________________ Pce mailing list Pce@lists.ietf.org https://www1.ietf.org/mailman/listinfo/pce
- [Pce] Fw: Time for a liaison to the ITU Adrian Farrel