PCEP Extensions for LSP scheduling with stateful PCE
draft-zhuang-pce-stateful-pce-lsp-scheduling-03

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PCE Working Group                                              Y. Zhuang
Internet-Draft                                                     Q. Wu
Intended status: Standards Track                                D. Dhody
Expires: December 24, 2016                                        Huawei
                                                           D. Ceccarelli
                                                                Ericsson
                                                           June 22, 2016

          PCEP Extensions for LSP scheduling with stateful PCE
            draft-zhuang-pce-stateful-pce-lsp-scheduling-03

Abstract

   This document proposes a set of extensions needed to the stateful
   Path Computation Element (PCE) communication Protocol (PCEP), so as
   to enable Labeled Switched Path (LSP) scheduling for path computation
   and LSP setup/deletion based on the actual network resource usage
   duration of a traffic service in a centralized network environment.
   A scheduled LSP can be setup at its starting time and deleted after
   its usage duration such that LSPs for the other traffic services can
   take over these network resources beyond that period.

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Zhuang, et al.          Expires December 24, 2016               [Page 1]
Internet-Draft               LSP Scheduling                    June 2016

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions used in this document . . . . . . . . . . . . . .   3
     2.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Motivation and Objectives . . . . . . . . . . . . . . . . . .   5
   4.  Architecture Overview . . . . . . . . . . . . . . . . . . . .   5
     4.1.  LSP scheduling Overview . . . . . . . . . . . . . . . . .   5
     4.2.  Support of LSP Scheduling . . . . . . . . . . . . . . . .   6
       4.2.1.  Stateful PCE Capability TLV . . . . . . . . . . . . .   6
     4.3.  Scheduled LSP creation  . . . . . . . . . . . . . . . . .   7
       4.3.1.  The PCReq message and PCRpt Message . . . . . . . . .   8
       4.3.2.  The PCRep Message . . . . . . . . . . . . . . . . . .   9
       4.3.3.  The PCUpd Message . . . . . . . . . . . . . . . . . .   9
       4.3.4.  LSP Object  . . . . . . . . . . . . . . . . . . . . .   9
     4.4.  Scheduled LSP activation and deletion . . . . . . . . . .  11
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  11
   6.  Manageability Consideration . . . . . . . . . . . . . . . . .  11
     6.1.  Control of Function and Policy  . . . . . . . . . . . . .  11
     6.2.  Information and Data Models . . . . . . . . . . . . . . .  11
     6.3.  Liveness Detection and Monitoring . . . . . . . . . . . .  11
     6.4.  Verify Correct Operations . . . . . . . . . . . . . . . .  11
     6.5.  Requirements On Other Protocols . . . . . . . . . . . . .  12
     6.6.  Impact On Network Operations  . . . . . . . . . . . . . .  12
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  12
     7.1.  PCEP TLV Type Indicators  . . . . . . . . . . . . . . . .  12
     7.2.  LSP-SCHEDULING-CAPABLITY  . . . . . . . . . . . . . . . .  12
   8.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  12
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  13
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  13
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  14
   Appendix A.  Scheduled LSP information synchronization  . . . . .  14
   Appendix B.  Contributor Addresses  . . . . . . . . . . . . . . .  14
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