Applicability of GMPLS for B100G Optical Transport Network
draft-ietf-ccamp-gmpls-otn-b100g-applicability-01

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Internet Engineering Task Force                             Q. Wang, Ed.
Internet-Draft                                                       ZTE
Intended status: Informational                          R. Valiveti, Ed.
Expires: January 8, 2020                                   Infinera Corp
                                                           H. Zheng, Ed.
                                                                  Huawei
                                                             H. Helvoort
                                                         Hai Gaoming B.V
                                                              S. Belotti
                                                                   Nokia
                                                            July 7, 2019

       Applicability of GMPLS for B100G Optical Transport Network
           draft-ietf-ccamp-gmpls-otn-b100g-applicability-01

Abstract

   This document examines the applicability of using current existing
   GMPLS routing and signaling to set up ODUk/ODUflex over ODUCn link,
   as a result of the support of OTU/ODU links with rates larger than
   100G in the 2016 version of G.709.

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   This Internet-Draft will expire on January 8, 2020.

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   Copyright (c) 2019 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
   (https://trustee.ietf.org/license-info) in effect on the date of

Wang, et al.             Expires January 8, 2020                [Page 1]
Internet-Draft              B100G Extensions                   July 2019

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Scope . . . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Requirements Language . . . . . . . . . . . . . . . . . .   3
     2.2.  OTN terminology used in this document . . . . . . . . . .   3
   3.  Overview of B100G in G.709  . . . . . . . . . . . . . . . . .   4
     3.1.  OTUCn . . . . . . . . . . . . . . . . . . . . . . . . . .   4
       3.1.1.  Carrying OTUCn between 3R points  . . . . . . . . . .   5
     3.2.  ODUCn . . . . . . . . . . . . . . . . . . . . . . . . . .   6
     3.3.  OTUCn-M . . . . . . . . . . . . . . . . . . . . . . . . .   7
     3.4.  Time Slot Granularity . . . . . . . . . . . . . . . . . .   8
     3.5.  Structure of OPUCn MSI with Payload type 0x22 . . . . . .   8
     3.6.  Client Signal Mappings  . . . . . . . . . . . . . . . . .   8
   4.  Applicability and GMPLS Implications  . . . . . . . . . . . .  10
     4.1.  Applicability and Challenges  . . . . . . . . . . . . . .  10
     4.2.  GMPLS Implications and Applicability  . . . . . . . . . .  12
       4.2.1.  TE-Link Representation  . . . . . . . . . . . . . . .  12
       4.2.2.  Implications and Applicability for GMPLS Signalling .  13
       4.2.3.  Implications and Applicability for GMPLS Routing  . .  14
   5.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  15
   6.  Authors (Full List) . . . . . . . . . . . . . . . . . . . . .  15
   7.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  16
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  16
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  17
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  17
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  17
     10.2.  Informative References . . . . . . . . . . . . . . . . .  18
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  18

1.  Introduction

   The current GMPLS routing [RFC7138] and signaling extensions
   [RFC7139] only includes coverage for the control of all the OTN
   capabilities that were defined in the 2012 version of G.709