Link Management Protocol Extensions for Grid Property Negotiation
draft-ietf-ccamp-grid-property-lmp-02

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Replaces draft-li-ccamp-grid-property-lmp
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Network Working Group                                       Q. Wang, Ed.
Internet-Draft                                                       ZTE
Intended status: Standards Track                           G. Zhang, Ed.
Expires: April 13, 2016                                            CAICT
                                                                   Y. Li
                                                      Nanjing University
                                                             R. Casellas
                                                                    CTTC
                                                                 Y. Wang
                                                                   CAICT
                                                        October 11, 2015

   Link Management Protocol Extensions for Grid Property Negotiation
                 draft-ietf-ccamp-grid-property-lmp-02

Abstract

   ITU-T [G.694.1] introduces the flexible-grid DWDM technique, which
   provides a new tool that operators can implement to provide a higher
   degree of network optimization than is possible with fixed-grid
   systems.  This document describes the extensions to the Link
   Management Protocol (LMP) to negotiate link grid property between the
   adjacent DWDM nodes before the link is brought up.

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   This Internet-Draft will expire on April 13, 2016.

Copyright Notice

   Copyright (c) 2015 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Wang, et al.             Expires April 13, 2016                 [Page 1]
Internet-Draft            GMPLS Flexi-grid LMP              October 2015

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Conventions Used in This Document . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Requirements for Grid Property Negotiation  . . . . . . . . .   3
     3.1.  Flexi-fixed Grid Nodes Interworking . . . . . . . . . . .   3
     3.2.  Flexible-Grid Capability Negotiation  . . . . . . . . . .   4
     3.3.  Summary . . . . . . . . . . . . . . . . . . . . . . . . .   5
   4.  LMP extensions  . . . . . . . . . . . . . . . . . . . . . . .   5
     4.1.  Grid Property Subobject . . . . . . . . . . . . . . . . .   5
   5.  Messages Exchange Procedure . . . . . . . . . . . . . . . . .   7
     5.1.  Flexi-fixed Grid Nodes Messages Exchange  . . . . . . . .   7
     5.2.  Flexible Nodes Messages Exchange  . . . . . . . . . . . .   8
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   9
   7.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .   9
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .   9
   9.  Contributing Authors  . . . . . . . . . . . . . . . . . . . .  10
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  10
     10.2.  Informative References . . . . . . . . . . . . . . . . .  10
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  11

1.  Introduction

   ITU-T [G.694.1] introduces the flexible-grid DWDM technique, which
   provides a new tool that operators can implement to provide a higher
   degree of network optimization than is possible with fixed-grid
   systems.  A flexible-grid network supports allocating a variable-
   sized spectral slot to a channel.  Flexible-grid DWDM transmission
   systems can allocate their channels with different spectral
   bandwidths/slot widths so that they can be optimized for the
   bandwidth requirements of the particular bit rate and modulation
   scheme of the individual channels.  This technique is regarded to be
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