pce multilayer lsp association
draft-xiong-pce-multilayer-lsp-association-00

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PCE WG                                                       Quan. Xiong
Internet-Draft                                               Fangwei. Hu
Intended status: Standards Track                               Ran. Chen
Expires: September 11, 2017                              ZTE Corporation
                                                          March 10, 2017

                     pce multilayer lsp association
           draft-xiong-pce-multilayer-lsp-association-00.txt

Abstract

   The Path Computation Element Communication Protocol (PCEP) provides
   mechanisms for Path Computation Elements (PCEs) to perform path
   computations in response to Path Computation Clients (PCCs) requests.
   [I-D.ietf-pce-association-group] proposed an association mechanism
   for a set of LSPs.

   This document proposes a set of extensions to PCEP to associate a
   grouping of multi-layer LSPs.  The extensions define a mechanism to
   create associations between upper-layer LSP and related lower-layer
   LSPs.

Status of This Memo

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Copyright Notice

   Copyright (c) 2017 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

Xiong, et al.          Expires September 11, 2017               [Page 1]
Internet-Draft         multilayer lsp association             March 2017

   publication of this document.  Please review these documents
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Overview  . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     3.1.  Motivation  . . . . . . . . . . . . . . . . . . . . . . .   3
     3.2.  Operation Overview  . . . . . . . . . . . . . . . . . . .   4
   4.  Extensions to the PCEP  . . . . . . . . . . . . . . . . . . .   4
     4.1.  LAYER-ASSOCIATION TLV . . . . . . . . . . . . . . . . . .   5
     4.2.  Processing Rules  . . . . . . . . . . . . . . . . . . . .   6
       4.2.1.  Multi-Layer LSPs Associations Creation  . . . . . . .   6
       4.2.2.  Bandwidth Adjustment  . . . . . . . . . . . . . . . .   6
       4.2.3.  TE Links Optimization . . . . . . . . . . . . . . . .   6
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .   7
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   7
     6.1.  Association Object Type . . . . . . . . . . . . . . . . .   7
     6.2.  LAYER-ASSOCIATION TLV . . . . . . . . . . . . . . . . . .   7
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   7
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   7
     8.1.  Informative References  . . . . . . . . . . . . . . . . .   7
     8.2.  Normative References  . . . . . . . . . . . . . . . . . .   8
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   8

1.  Introduction

   [RFC5440] describes the Path Computation Element Protocol (PCEP)
   which is used between a Path Computation Element (PCE) and a Path
   Computation Client (PCC) (or other PCE) to enable computation of
   Multi-protocol Label Switching (MPLS) for Traffic Engineering Label
   Switched Path (TE LSP).  [I-D.ietf-pce-association-group] proposed an
   association mechanism to create a grouping of LSPs in the context of
   a PCE.

   This document proposes a set of extensions to PCEP to associate a
   grouping of multi-layer LSPs.  The extensions define a mechanism to
   create associations between upper-layer LSP and related lower-layer
   LSPs.
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