Traffic Engineering Extensions to OSPF for GMPLS Control of Beyond-100G G.709 Optical Transport Networks
draft-izh-ccamp-b100g-routing-01

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CCAMP Working Group                                               R. Rao
Internet-Draft                                                I. Hussain
Intended status: Informational                               R. Valiveti
Expires: March 2, 2018                              Infinera Corporation
                                                            Q. Wang, Ed.
                                                                Y. Zhang
                                                                     ZTE
                                                             H. Helvoort
                                                         Hai Gaoming B.V
                                                         August 29, 2017

Traffic Engineering Extensions to OSPF for GMPLS Control of Beyond-100G
                    G.709 Optical Transport Networks
                    draft-izh-ccamp-b100g-routing-01

Abstract

   This document describes Open Shortest Path First - Traffic
   Engineering (OSPF-TE) routing protocol extensions to support GMPLS
   control of Optical Transport Networks (OTNs) specified in ITU-T
   Recommendation G.709 published in 2016.  The 2016 version of G.709
   [ITU-T_G709_2016] introduces support for higher rate OTU signals,
   termed OTUCn (which have a nominal rate of 100n Gbps).  The newly
   introduced OTUCn represent a very powerful extension to the OTN
   capabilities, and one which naturally scales to transport any newer
   clients with bit rates in excess of 100G, as they are introduced.
   This document extends the mechanisms defined in [RFC7138].

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Rao, et al.               Expires March 2, 2018                 [Page 1]
Internet-Draft  OSPF-TE Extensions for B100G OTN Support     August 2017

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  OSPF-TE Extensions  . . . . . . . . . . . . . . . . . . . . .   3
   3.  TE-Link Representation  . . . . . . . . . . . . . . . . . . .   3
   4.  ISCD Format Extensions  . . . . . . . . . . . . . . . . . . .   4
     4.1.  Switching Capability Specific Information . . . . . . . .   5
       4.1.1.  Switching Capability Specific Information for ODUCn
               containers  . . . . . . . . . . . . . . . . . . . . .   5
   5.  Examples  . . . . . . . . . . . . . . . . . . . . . . . . . .   6
     5.1.  MAX LSP Bandwidth Fields in the ISCD  . . . . . . . . . .   7
     5.2.  Example of T, S, and TS Granularity Utilization . . . . .   9
     5.3.  Example of ODUflex Advertisement  . . . . . . . . . . . .   9
     5.4.  Example of Single-Stage Muxing  . . . . . . . . . . . . .   9
     5.5.  Example of Multi-Stage Muxing -- Unbundled Link . . . . .  11
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  13
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  13
   8.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  13
   9.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  13
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  13
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  13
     10.2.  Informative References . . . . . . . . . . . . . . . . .  14
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  14

1.  Introduction

   The current GMPLS routing extensions RFC [RFC7138] includes coverage
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