Interworking of GMPLS Control and Centralized Controller System
draft-ietf-teas-gmpls-controller-inter-work-03
TEAS Working Group Haomian Zheng
Internet Draft Xianlong Luo
Yi Lin
Category: Informational Huawei Technologies
Yang Zhao
China Mobile
Yunbin Xu
CAICT
Sergio Belotti
Dieter Beller
Nokia
Expires: September 9, 2020 March 9, 2020
Interworking of GMPLS Control and Centralized Controller System
draft-ietf-teas-gmpls-controller-inter-work-03
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.
Status of this Memo
This Internet-Draft is submitted to IETF in full conformance with
the provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF), its areas, and its working groups. Note that
other groups may also distribute working documents as Internet-
Drafts.
Internet-Drafts are draft documents valid for a maximum of six
months and may be updated, replaced, or obsoleted by other documents
Zheng, et al. Expires September 2020 [Page 1]
Internet-Draft GMPLS and Controller Interwork March 2020
at any time. It is inappropriate to use Internet-Drafts as
reference material or to cite them other than as "work in progress."
The list of current Internet-Drafts can be accessed at
http://www.ietf.org/ietf/1id-abstracts.txt.
The list of Internet-Draft Shadow Directories can be accessed at
http://www.ietf.org/shadow.html.
This Internet-Draft will expire on September 9, 2020.
Copyright Notice
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
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with
respect to this document. Code Components extracted from this
document must include Simplified BSD License text as described in
Section 4.e of the Trust Legal Provisions and are provided without
warranty as described in the Simplified BSD License.
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 .. 5
3. Discovery Options ............................................. 6
3.1. LMP ...................................................... 6
4. Routing Options ............................................... 6
4.1. OSPF-TE .................................................. 7
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) ........................... 8
Show full document text