PCEP Extension for Distribution of Link-State and TE information for Optical Networks
draft-lee-pce-pcep-ls-optical-02

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PCE Working Group                                             Young Lee
                                                          Haomian Zheng
Internet Draft                                                   Huawei
Intended Status: Standard
Expires: September 2017                              Daniele Ceccarelli
                                                               Ericsson

                                                               Wei Wang
                                     Beijing Univ. of Posts and Telecom

                                                             Peter Park
                                                                     KT

                                                         Bin Young Yoon
                                                                   ETRI

                                                         March 13, 2017

   PCEP Extension for Distribution of Link-State and TE information for
                             Optical Networks

                     draft-lee-pce-pcep-ls-optical-02

Abstract

   In order to compute and provide optimal paths, Path Computation
   Elements (PCEs) require an accurate and timely Traffic Engineering
   Database (TED). Traditionally this Link State and TE information has
   been obtained from a link state routing protocol (supporting traffic
   engineering extensions).

   This document extends the Path Communication Element Communication
   Protocol (PCEP)_ with Link-State and TE information for optical
   networks.

Status of this Memo

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Lee                   Expires September 13, 2017               [Page 1]
Internet-Draft         PCEP LS for Optical Networks         March 2017

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Table of Contents

   1. Introduction...................................................3
   2. Applicability..................................................4
   3. Requirements for PCEP extension................................5
   4. PCEP-LS extension for Optical Networks.........................7
      4.1. Node Attributes TLV.......................................7
      4.2. Link Attributes TLV.......................................8
   5. Security Considerations........................................9
   6. IANA Considerations...........................................10
      6.1. PCEP-LS Sub-TLV Type Indicators..........................10
   7. References....................................................11
      7.1. Normative References.....................................11
      7.2. Informative References...................................11
   Appendix A. Contributor Addresses................................13

Lee                   Expires February 13, 2017                [Page 2]
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   Author's Addresses...............................................13

1. Introduction

   In Multiprotocol Label Switching (MPLS) and Generalized MPLS
   (GMPLS), a Traffic Engineering Database (TED) is used in computing
   paths for connection oriented packet services and for circuits. The
   TED contains all relevant information that a Path Computation
   Element (PCE) needs to perform its computations. It is important
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