Applicability of GMPLS for B100G Optical Transport Network
draft-ietf-ccamp-gmpls-otn-b100g-applicability-00

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Internet Engineering Task Force                             Q. Wang, Ed.
Internet-Draft                                                       ZTE
Intended status: Informational                          R. Valiveti, Ed.
Expires: August 31, 2019                                   Infinera Corp
                                                           H. Zheng, Ed.
                                                                  Huawei
                                                             H. Helvoort
                                                         Hai Gaoming B.V
                                                              S. Belotti
                                                                   Nokia
                                                       February 27, 2019

       Applicability of GMPLS for B100G Optical Transport Network
           draft-ietf-ccamp-gmpls-otn-b100g-applicability-00

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 August 31, 2019.

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   Copyright (c) 2019 IETF Trust and the persons identified as the
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   This document is subject to BCP 78 and the IETF Trust's Legal
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   (https://trustee.ietf.org/license-info) in effect on the date of

Wang, et al.             Expires August 31, 2019                [Page 1]
Internet-Draft              B100G Extensions               February 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.  Implications and Applicability for GMPLS Signalling .  12
       4.2.2.  Implications and Applicability for GMPLS Routing  . .  13
   5.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  14
   6.  Authors (Full List) . . . . . . . . . . . . . . . . . . . . .  14
   7.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  15
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  16
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  16
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  16
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  16
     10.2.  Informative References . . . . . . . . . . . . . . . . .  17
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  17

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
   [ITU-T_G709_2012].

   While the 2016 version of G.709 [ITU-T_G709_2016] introduces support