Interworking of GMPLS Control and Centralized Controller System
draft-ietf-teas-gmpls-controller-inter-work-01

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Last updated 2019-07-08
Replaces draft-zheng-teas-gmpls-controller-inter-work
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TEAS Working Group                                        Haomian Zheng
Internet Draft                                             Xianlong Luo
Category: Informational                             Huawei Technologies
                                                              Yang Zhao
                                                           China Mobile
                                                              Yunbin Xu
                                                                  CAICT
                                                         Sergio Belotti
                                                          Dieter Beller
                                                                  Nokia
Expires: January 8, 2020                                   July 8, 2019

    Interworking of GMPLS Control and Centralized Controller System

              draft-ietf-teas-gmpls-controller-inter-work-01

Abstract

   Generalized Multi-Protocol Label Switching (GMPLS) control allows
   each network element (NE) to perform local resource discovery,
   routing and signaling in a distributed manner.

   On the other hand, with the development of software-defined
   transport networking technology, a set of NEs can be controlled via
   centralized controller hierarchies to address the issue from multi-
   domain, multi-vendor and multi-technology. An example of such
   centralized architecture is ACTN controller hierarchy described in
   RFC 8453.

   Instead of competing with each other, both the distributed and the
   centralized control plane have their own advantages, and should be
   complementary in the system. This document describes how the GMPLS
   distributed control plane can interwork with a centralized
   controller system in a transport network.

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Conventions used in this document

Table of Contents

   1. Introduction...................................................3
   2. Overview.......................................................4
   2.1. Overview of GMPLS Control Plane..............................4
   2.2. Overview of Centralized Controller System....................4
   2.3. GMPLS Control Interwork with Centralized Controller System...4
   3. Link Management Protocol............Error! Bookmark not defined.
   4. Routing Options................................................6
      4.1. OSPF-TE...................................................6
      4.2. ISIS-TE...................................................7
      4.3. Netconf/RESTconf..........................................7
   5. Path Computation...............................................7
      5.1. Constraint-based Path Computing in GMPLS Control..........7
      5.2. Path Computation Element (PCE)............................7
   6. Signaling Options..............................................8
      6.1. RSVP-TE...................................................8
   7. Interworking Scenarios.........................................8

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      7.1. Topology Collection & Synchronization.....................8
      7.2. Multi-domain Service Provisioning.........................9
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