Path Computation Element communication Protocol (PCEP) extensions for Establishing Relationships between sets of LSPs and Virtual Networks
draft-ietf-pce-vn-association-02

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Last updated 2020-04-16
Replaces draft-leedhody-pce-vn-association
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PCE Working Group                                                 Y. Lee
Internet-Draft                                                   Samsung
Intended status: Standards Track                                H. Zheng
Expires: October 18, 2020                            Huawei Technologies
                                                           D. Ceccarelli
                                                                Ericsson
                                                          April 16, 2020

 Path Computation Element communication Protocol (PCEP) extensions for
  Establishing Relationships between sets of LSPs and Virtual Networks
                    draft-ietf-pce-vn-association-02

Abstract

   This document describes how to extend Path Computation Element (PCE)
   Communication Protocol (PCEP) association mechanism introduced by the
   PCEP Association Group specification, to further associate sets of
   LSPs with a higher-level structure such as a virtual network (VN)
   requested by clients or applications.  This extended association
   mechanism can be used to facilitate virtual network control using PCE
   architecture.

Status of This Memo

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   This Internet-Draft will expire on October 18, 2020.

Copyright Notice

   Copyright (c) 2020 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
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   (https://trustee.ietf.org/license-info) in effect on the date of

Lee, et al.             Expires October 18, 2020                [Page 1]

Internet-Draft             PCE VN Association                 April 2020

   publication of this document.  Please review these documents
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirement Language  . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Operation Overview  . . . . . . . . . . . . . . . . . . . . .   4
   4.  Extensions to PCEP  . . . . . . . . . . . . . . . . . . . . .   6
   5.  Applicability to H-PCE architecture . . . . . . . . . . . . .   7
   6.  Implementation Status . . . . . . . . . . . . . . . . . . . .   8
     6.1.  Huawei's Proof of Concept based on ONOS . . . . . . . . .   9
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .   9
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   9
     8.1.  Association Object Type Indicator . . . . . . . . . . . .   9
     8.2.  PCEP TLV Type Indicator . . . . . . . . . . . . . . . . .   9
     8.3.  PCEP Error  . . . . . . . . . . . . . . . . . . . . . . .  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. References  . . . . . . . . . . . . . . . . . . . . . . . . .  11
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  11
     10.2.  Informative References . . . . . . . . . . . . . . . . .  12
   Appendix A.  Contributors . . . . . . . . . . . . . . . . . . . .  13
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  13

1.  Introduction

   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.

   [RFC8051] describes general considerations for a stateful PCE
   deployment and examines its applicability and benefits, as well as
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