LSP-DB Synchronization between Stateful PCEs
draft-palle-pce-stateful-pce-lspdb-sync-02

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Replaced by draft-dhody-pce-stateful-pce-lspdb-realtime-sync
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PCE Working Group                                               U. Palle
Internet-Draft                                                  D. Dhody
Intended status: Standards Track                                X. Zhang
Expires: July 26, 2014                               Huawei Technologies
                                                        January 22, 2014

              LSP-DB Synchronization between Stateful PCEs
               draft-palle-pce-stateful-pce-lspdb-sync-02

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.

   [STATEFUL-PCE] specifies a set of extensions to PCEP to enable
   stateful control of MPLS-TE and GMPLS Label Switched Paths (LSPs) via
   PCEP and maintaining of these LSPs at the stateful PCE.  This
   document describes the mechanisms of LSP Database (LSP-DB)
   synchronization between stateful PCEs.

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   This document is subject to BCP 78 and the IETF Trust's Legal
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Palle, et al.             Expires July 26, 2014                 [Page 1]
Internet-Draft                 LSPDB-SYNC                   January 2014

   carefully, as they describe your rights and restrictions with respect
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Motivation and Use  . . . . . . . . . . . . . . . . . . . . .   3
   4.  Functions to Support LSP-DB Synchronization . . . . . . . . .   4
   5.  Architectural Overview  . . . . . . . . . . . . . . . . . . .   5
     5.1.  LSP-DB Synchronization between Primary and Backup
           Stateful PCEs . . . . . . . . . . . . . . . . . . . . . .   5
     5.2.  LSP-DB Synchronization between Load-Balanced Stateful
           PCEs  . . . . . . . . . . . . . . . . . . . . . . . . . .   7
     5.3.  Other Considerations  . . . . . . . . . . . . . . . . . .   8
   6.  PCEP Messages . . . . . . . . . . . . . . . . . . . . . . . .   8
     6.1.  The PCRpt Message . . . . . . . . . . . . . . . . . . . .   8
     6.2.  The PCUpd Message . . . . . . . . . . . . . . . . . . . .   9
   7.  TLVs  . . . . . . . . . . . . . . . . . . . . . . . . . . . .   9
     7.1.  Stateful PCE Capability TLV . . . . . . . . . . . . . . .   9
     7.2.  PCE Redundancy Group Identifier TLV . . . . . . . . . . .   9
     7.3.  PCE-CAP-FLAGS sub-TLV . . . . . . . . . . . . . . . . . .  10
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  10
   9.  Manageability Considerations  . . . . . . . . . . . . . . . .  10
     9.1.  Control of Function and Policy  . . . . . . . . . . . . .  10
     9.2.  Information and Data Models . . . . . . . . . . . . . . .  10
     9.3.  Liveness Detection and Monitoring . . . . . . . . . . . .  10
     9.4.  Verify Correct Operations . . . . . . . . . . . . . . . .  10
     9.5.  Requirements On Other Protocols . . . . . . . . . . . . .  11
     9.6.  Impact On Network Operations  . . . . . . . . . . . . . .  11
   10. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  11
     10.1.  STATEFUL-PCE-CAPABILITY TLV  . . . . . . . . . . . . . .  11
     10.2.  PCE-CAP-FLAGS sub-TLV  . . . . . . . . . . . . . . . . .  11
   11. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  11
   12. References  . . . . . . . . . . . . . . . . . . . . . . . . .  11
     12.1.  Normative References . . . . . . . . . . . . . . . . . .  11
     12.2.  Informative References . . . . . . . . . . . . . . . . .  12
   Appendix A.  Contributor Addresses  . . . . . . . . . . . . . . .  13
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