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PCEP Requirements for WSON Routing and Wavelength Assignment
draft-ietf-pce-wson-routing-wavelength-11

Document type: Active Internet-Draft (pce WG)
Document stream: IETF
Last updated: 2014-03-11
Intended RFC status: Unknown
Other versions: plain text, pdf, html

IETF State: WG Document
Document shepherd: No shepherd assigned

IESG State: I-D Exists
Responsible AD: (None)
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Network Working Group                                            Y. Lee
Internet Draft                                                   Huawei
Intended status: Informational
Expires: September 2014                                    G. Bernstein
                                                      Grotto Networking

                                                       Jonas Martensson
                                                                  Acreo

                                                              T. Takeda
                                                                    NTT

                                                           T. Tsuritani
                                                                   KDDI

                                                           O. G. de Dios
                                                              Telefonica

                                                         March 11, 2014

       PCEP Requirements for WSON Routing and Wavelength Assignment

               draft-ietf-pce-wson-routing-wavelength-11.txt

Status of this Memo

   This Internet-Draft is submitted to IETF in full conformance with
   the provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF), its areas, and its working groups.  Note that
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   Drafts.

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   This Internet-Draft will expire on September 11, 2014.

Lee & Bernstein       Expires September 11, 2014               [Page 1]
Internet-Draft      PCEP Requirement for WSON RWA            March 2014

Copyright Notice

   Copyright (c) 2014 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
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with
   respect to this document.  Code Components extracted from this
   document must include Simplified BSD License text as described in
   Section 4.e of the Trust Legal Provisions and are provided without
   warranty as described in the Simplified BSD License.

Abstract

   This memo provides application-specific requirements for the Path
   Computation Element communication Protocol (PCEP) for the support of
   Wavelength Switched Optical Networks (WSON). Lightpath provisioning
   in WSONs requires a routing and wavelength assignment (RWA) process.
   From a path computation perspective, wavelength assignment is the
   process of determining which wavelength can be used on each hop of a
   path and forms an additional routing constraint to optical light
   path computation. Requirements for Optical impairments will be
   addressed in a separate document.

Conventions used in this document

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC-2119 0.

Table of Contents

   1. Introduction ...................................................3
   2. WSON RWA Processes & Architecture ..............................4
   3. Requirements ...................................................6
      3.1. Path Computation Type Option..............................6
      3.2. RWA Processing............................................6
      3.3. Bulk RWA Path Request/Reply...............................7
      3.4. RWA Path Re-optimization Request/Reply....................7

Lee & Bernstein       Expires September 11, 2014               [Page 2]
Internet-Draft      PCEP Requirement for WSON RWA            March 2014

      3.5. Wavelength Range Constraint...............................7
      3.6. Wavelength Assignment Preference..........................8
      3.7. Signal Processing Capability Restriction..................8
   4. Manageability Considerations ...................................8
      4.1. Control of Function and Policy............................9

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