Requirements for GMPLS applications of PCE
draft-ietf-pce-gmpls-aps-req-08

The information below is for an old version of the document
Document Type Active Internet-Draft (pce WG)
Authors Tomohiro Otani  , Kenichi Ogaki  , Diego Caviglia  , Fatai Zhang  , Cyril Margaria 
Last updated 2013-06-27 (latest revision 2013-06-10)
Replaces draft-otani-pce-gmpls-aps-req
Stream IETF
Intended RFC status Informational
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Stream WG state Submitted to IESG for Publication
Document shepherd Julien Meuric
Shepherd write-up Show (last changed 2013-05-21)
IESG IESG state IESG Evaluation::Revised I-D Needed
Consensus Boilerplate Yes
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Needs a YES.
Responsible AD Adrian Farrel
Send notices to pce-chairs@tools.ietf.org, draft-ietf-pce-gmpls-aps-req@tools.ietf.org
IANA IANA review state IANA OK - No Actions Needed
Network Working Group                                           T. Otani
Internet-Draft                                                  K. Ogaki
Intended status: Informational                                      KDDI
Expires: December 12, 2013                                   D. Caviglia
                                                                Ericsson
                                                                F. Zhang
                                                     Huawei Technologies
                                                             C. Margaria
                                                        Coriant R&D GmbH
                                                           June 10, 2013

               Requirements for GMPLS applications of PCE
                  draft-ietf-pce-gmpls-aps-req-08.txt

Abstract

   The initial effort of the PCE (Path computation element) WG is
   specifically focused on MPLS.  As a next step, this draft describes
   functional requirements for GMPLS application of PCE.

Status of This Memo

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   This Internet-Draft will expire on December 12, 2013.

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   Copyright (c) 2013 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
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Otani, et al.           Expires December 12, 2013               [Page 1]
Internet-Draft         Reqs for GMPLS apps of PCE              June 2013

   to this document.  Code Components extracted from this document must
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  GMPLS applications of PCE . . . . . . . . . . . . . . . . . .   3
     2.1.  Path computation in GMPLS network . . . . . . . . . . . .   3
     2.2.  Unnumbered Interface  . . . . . . . . . . . . . . . . . .   5
     2.3.  Asymmetric Bandwidth Path Computation . . . . . . . . . .   5
   3.  Requirements for GMPLS application of PCE . . . . . . . . . .   5
     3.1.  Requirements on Path Computation Request  . . . . . . . .   5
     3.2.  Requirements on Path Computation Reply  . . . . . . . . .   6
     3.3.  GMPLS PCE Management  . . . . . . . . . . . . . . . . . .   8
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .   8
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
   6.  Acknowledgement . . . . . . . . . . . . . . . . . . . . . . .   8
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   8
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .   8
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  10
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  11

1.  Introduction

   The initial effort of the PCE (Path computation element) WG is
   focused on solving the path computation problem within a domain or
   over different domains in MPLS networks.  As the same case with MPLS,
   service providers (SPs) have also come up with requirements for path
   computation in GMPLS-controlled networks [RFC3945] such as
   wavelength, TDM-based or Ethernet-based networks as well.

   [RFC4655] and [RFC4657] discuss the framework and requirements for
   PCE on both packet MPLS networks and GMPLS-controlled networks.  This
   document complements these RFCs by providing some considerations of
   GMPLS applications in the intra-domain and inter-domain networking
   environments and indicating a set of requirements for the extended
   definition of PCE-related protocols.

   Note that the requirements for inter-layer and inter-area traffic
   engineering described in [RFC6457] and [RFC4927] are outside of the
   scope of this document.

   Constraint-based shortest path first (CSPF) computation within a
   domain or over domains for signaling GMPLS Label Switched Paths
   (LSPs) is usually more stringent than that of MPLS TE LSPs [RFC4216],
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