Generalized Labels for the Flexi-Grid in Lambda Switch Capable (LSC) Label Switching Routers
draft-ietf-ccamp-flexigrid-lambda-label-03

The information below is for an old version of the document
Document Type Active Internet-Draft (ccamp WG)
Last updated 2015-07-02 (latest revision 2015-01-04)
Replaces draft-farrkingel-ccamp-flexigrid-lambda-label
Stream IETF
Intended RFC status Proposed Standard
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Document shepherd Daniele Ceccarelli
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Send notices to "Daniele Ceccarelli" <daniele.ceccarelli@ericsson.com>
Network Working Group                                          A. Farrel
Internet Draft                                                   D. King
Updates: 3471, 6205 (if approved)                     Old Dog Consulting
Intended Status: Standards Track                                   Y. Li
Expires: 4 July 2015                                  Nanjing University
                                                                F. Zhang
                                                     Huawei Technologies

                                                          4 January 2015

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

             draft-ietf-ccamp-flexigrid-lambda-label-03.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 July 2015                   [Page 1]
draft-ietf-ccamp-flexigrid-lambda-label-03.txt              January 2015

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   document authors.  All rights reserved.

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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  2
   1.1.  Conventions Used in This Document  . . . . . . . . . . . . .  3
   2.  Overview of Flexi-Grid . . . . . . . . . . . . . . . . . . . .  3
   2.1.  Composite Labels . . . . . . . . . . . . . . . . . . . . . .  4
   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
   4.3.  Composite Labels . . . . . . . . . . . . . . . . . . . . . .  7
   5.  Manageability Considerations . . . . . . . . . . . . . . . . .  8
   6.  Implementation Status  . . . . . . . . . . . . . . . . . . . .  9
   6.1. Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)  .  9
   7.  Security Considerations  . . . . . . . . . . . . . . . . . . . 10
   8.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 10
   8.1.  Grid Subregistry . . . . . . . . . . . . . . . . . . . . . . 10
   8.2.  DWDM Channel Spacing Subregistry . . . . . . . . . . . . . . 11
   9.  Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . 11
   10.  References  . . . . . . . . . . . . . . . . . . . . . . . . . 11
   10.1.  Normative References  . . . . . . . . . . . . . . . . . . . 11
   10.2.  Informative References  . . . . . . . . . . . . . . . . . . 12
   Appendix A.  Flexi-Grid Example  . . . . . . . . . . . . . . . . . 13
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 14
   Contributors' Addresses  . . . . . . . . . . . . . . . . . . . . . 14

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).
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