PCEP Extensions for MPLS-TE LSP Automatic Bandwidth Adjustment with stateful PCE
draft-dhody-pce-stateful-pce-auto-bandwidth-01

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PCE Working Group                                               D. Dhody
Internet-Draft                                                  U. Palle
Intended status: Standards Track           Huawei Technologies India Pvt
Expires: January 5, 2014                                             Ltd
                                                            July 4, 2013

  PCEP Extensions for MPLS-TE LSP Automatic Bandwidth Adjustment with
                              stateful PCE
             draft-dhody-pce-stateful-pce-auto-bandwidth-01

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.
   The extensions described in [STATEFUL-PCE] provide stateful control
   of Multiprotocol Label Switching (MPLS) Traffic Engineering Label
   Switched Paths (TE LSP) via PCEP, for a model where the PCC delegates
   control over one or more locally configured LSPs to the PCE.

   This document describes the automatic bandwidth adjustment of such
   LSPs under the stateful PCE model.

Status of This Memo

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   Copyright (c) 2013 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

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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
     1.1.  Requirements Language  . . . . . . . . . . . . . . . . . .  3
   2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  4
   3.  Architectural Overview . . . . . . . . . . . . . . . . . . . .  4
     3.1.  Auto-Bandwidth Overview  . . . . . . . . . . . . . . . . .  4
     3.2.  Deploying Auto-Bandwidth Feature . . . . . . . . . . . . .  5
   4.  Extensions to the PCEP . . . . . . . . . . . . . . . . . . . .  6
     4.1.  AUTO-BANDWIDTH-ATTRIBUTE TLV . . . . . . . . . . . . . . .  6
     4.2.  BANDWIDTH Object . . . . . . . . . . . . . . . . . . . . .  7
     4.3.  The PCRpt Message  . . . . . . . . . . . . . . . . . . . .  8
   5.  Security Considerations  . . . . . . . . . . . . . . . . . . .  8
   6.  Manageability Considerations . . . . . . . . . . . . . . . . .  8
     6.1.  Control of Function and Policy . . . . . . . . . . . . . .  8
     6.2.  Information and Data Models  . . . . . . . . . . . . . . .  9
     6.3.  Liveness Detection and Monitoring  . . . . . . . . . . . .  9
     6.4.  Verify Correct Operations  . . . . . . . . . . . . . . . .  9
     6.5.  Requirements On Other Protocols  . . . . . . . . . . . . .  9
     6.6.  Impact On Network Operations . . . . . . . . . . . . . . .  9
   7.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . .  9
     7.1.  PCEP TLV Type Indicators . . . . . . . . . . . . . . . . .  9
     7.2.  BANDWIDTH Object . . . . . . . . . . . . . . . . . . . . .  9
   8.  Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . 10
   9.  References . . . . . . . . . . . . . . . . . . . . . . . . . . 10
     9.1.  Normative References . . . . . . . . . . . . . . . . . . . 10
     9.2.  Informative References . . . . . . . . . . . . . . . . . . 10
   Appendix A.  Contributor Addresses . . . . . . . . . . . . . . . . 10

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1.  Introduction

   [RFC5440] describes the Path Computation Element Protocol (PCEP) as
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