PCEP Extensions for LSP scheduling with stateful PCE
draft-zhuang-pce-stateful-pce-lsp-scheduling-04

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PCE Working Group                                              Y. Zhuang
Internet-Draft                                                     Q. Wu
Intended status: Standards Track                                D. Dhody
Expires: June 25, 2017                                            Huawei
                                                           D. Ceccarelli
                                                                Ericsson
                                                       December 22, 2016

          PCEP Extensions for LSP scheduling with stateful PCE
            draft-zhuang-pce-stateful-pce-lsp-scheduling-04

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 as
   stated in [I.D.ietf-teas-scheduled-resources].

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Zhuang, et al.            Expires June 25, 2017                 [Page 1]
Internet-Draft               LSP Scheduling                December 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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