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Generalized Labels for the Flexi-Grid in Lambda Switch Capable (LSC) Label Switching Routers
draft-farrkingel-ccamp-flexigrid-lambda-label-08

Document type: Active Internet-Draft (individual)
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Last updated: 2014-02-06
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Network Working Group                                          A. Farrel
Internet Draft                                                   D. King
Updates: 3471, 6205 (if approved)                     Old Dog Consulting
Intended Status: Standards Track                                   Y. Li
Expires: 6 August 2014                                Nanjing University
                                                                F. Zhang
                                                     Huawei Technologies

                                                         6 February 2014

                Generalized Labels for the Flexi-Grid in
          Lambda Switch Capable (LSC) Label Switching Routers

          draft-farrkingel-ccamp-flexigrid-lambda-label-08.txt

Abstract

   GMPLS supports the description of optical switching by identifying
   entries in fixed lists of switchable wavelengths (called grids)
   through the encoding of lambda labels.  Work within the ITU-T Study
   Group 15 has defined a finer granularity grid, and the facility to
   flexibly select different widths of spectrum from the grid.  This
   document defines a new GMPLS lambda label format to support this
   flexi-grid.

   This document updates RFC 3471 and RFC 6205 by introducing a new
   label format.

Status of this Memo

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

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Farrel et al.              Expires August 2014                  [Page 1]
draft-farrkingel-ccamp-flexigrid-lambda-label-08.txt       February 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
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  2
   1.1.  Conventions Used in This Document  . . . . . . . . . . . . .  3
   2.  Overview of Flexi-Grid . . . . . . . . . . . . . . . . . . . .  3
   3.  Fixed Grid Lambda Label Encoding . . . . . . . . . . . . . . .  4
   4.  Flexi-Grid Label Format and Values . . . . . . . . . . . . . .  5
   4.1 Flexi-Grid Label Encoding  . . . . . . . . . . . . . . . . . .  5
   4.2.  Considerations of Bandwidth  . . . . . . . . . . . . . . . .  6
   5.  Manageability Considerations . . . . . . . . . . . . . . . . .  6
   6.  Implementation Status  . . . . . . . . . . . . . . . . . . . .  7
   6.1. Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)  .  7
   7.  Security Considerations  . . . . . . . . . . . . . . . . . . .  8
   8.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . .  9
   8.1.  Grid Subregistry . . . . . . . . . . . . . . . . . . . . . .  9
   8.2.  DWDM Channel Spacing Subregistry . . . . . . . . . . . . . .  9
   9.  Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . .  9
   10.  References  . . . . . . . . . . . . . . . . . . . . . . . . . 10
   10.1.  Normative References  . . . . . . . . . . . . . . . . . . . 10
   10.2.  Informative References  . . . . . . . . . . . . . . . . . . 10
   Appendix A.  Flexi-Grid Example  . . . . . . . . . . . . . . . . . 11
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 12
   Contributors' Addresses  . . . . . . . . . . . . . . . . . . . . . 12

1.  Introduction

   As described in [RFC3945], GMPLS extends MPLS from supporting only
   Packet Switching Capable (PSC) interfaces and switching, to also
   support four new classes of interfaces and switching that include
   Lambda Switch Capable (LSC).

   A functional description of the extensions to MPLS signaling needed

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