PCEP Extensions for Receiving SRLG Information
draft-dhody-pce-recv-srlg-06

Document Type Active Internet-Draft (individual)
Last updated 2016-10-28
Replaces draft-dhody-pce-srlg-collection
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PCE Working Group                                               D. Dhody
Internet-Draft                                                  F. Zhang
Intended status: Standards Track                                X. Zhang
Expires: May 1, 2017                                 Huawei Technologies
                                                                V. Lopez
                                                     O. Gonzalez de Dios
                                                          Telefonica I+D
                                                        October 28, 2016

             PCEP Extensions for Receiving SRLG Information
                      draft-dhody-pce-recv-srlg-06

Abstract

   The Path Computation Element (PCE) provides functions of path
   computation in support of traffic engineering (TE) in networks
   controlled by Multi-Protocol Label Switching (MPLS) and Generalized
   MPLS (GMPLS).

   This document provides extensions for the Path Computation Element
   Protocol (PCEP) to receive Shared Risk Link Group (SRLG) information
   during path computation via encoding this information in the path
   computation reply message.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on May 1, 2017.

Copyright Notice

   Copyright (c) 2016 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Dhody, et al.              Expires May 1, 2017                  [Page 1]
Internet-Draft                  PCE-SRLG                    October 2016

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   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Usage of SRLG . . . . . . . . . . . . . . . . . . . . . . . .   4
   4.  PCEP Requirements . . . . . . . . . . . . . . . . . . . . . .   4
   5.  Extension to PCEP . . . . . . . . . . . . . . . . . . . . . .   4
     5.1.  The Extension of the RP Object  . . . . . . . . . . . . .   5
     5.2.  SRLG Subobject in ERO . . . . . . . . . . . . . . . . . .   5
   6.  Other Considerations  . . . . . . . . . . . . . . . . . . . .   6
     6.1.  Backward Compatibility  . . . . . . . . . . . . . . . . .   6
     6.2.  Confidentiality via PathKey . . . . . . . . . . . . . . .   6
     6.3.  Coherent SRLG IDs . . . . . . . . . . . . . . . . . . . .   6
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .   6
   8.  Manageability Considerations  . . . . . . . . . . . . . . . .   7
     8.1.  Control of Function and Policy  . . . . . . . . . . . . .   7
     8.2.  Information and Data Models . . . . . . . . . . . . . . .   7
     8.3.  Liveness Detection and Monitoring . . . . . . . . . . . .   7
     8.4.  Verify Correct Operations . . . . . . . . . . . . . . . .   7
     8.5.  Requirements On Other Protocols . . . . . . . . . . . . .   7
     8.6.  Impact On Network Operations  . . . . . . . . . . . . . .   7
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
     9.1.  New RP Object Flag  . . . . . . . . . . . . . . . . . . .   8
     9.2.  New Subobjects for the ERO Object . . . . . . . . . . . .   8
   10. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .   8
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .   8
     11.1.  Normative References . . . . . . . . . . . . . . . . . .   8
     11.2.  Informative References . . . . . . . . . . . . . . . . .   9
   Appendix A.  Contributor Addresses  . . . . . . . . . . . . . . .  12
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  12
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