Applicability of Path Computation Element (PCE) for Abstraction and Control of TE Networks (ACTN)
draft-ietf-pce-applicability-actn-06

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Last updated 2018-06-17
Replaces draft-dhody-pce-applicability-actn
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PCE Working Group                                               D. Dhody
Internet-Draft                                                    Y. Lee
Intended status: Informational                       Huawei Technologies
Expires: December 19, 2018                                 D. Ceccarelli
                                                                Ericsson
                                                           June 17, 2018

  Applicability of Path Computation Element (PCE) for Abstraction and
                     Control of TE Networks (ACTN)
                  draft-ietf-pce-applicability-actn-06

Abstract

   Abstraction and Control of TE Networks (ACTN) refers to the set of
   virtual network (VN) operations needed to orchestrate, control and
   manage large-scale multi-domain TE networks so as to facilitate
   network programmability, automation, efficient resource sharing, and
   end-to-end virtual service aware connectivity and network function
   virtualization services.

   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.

   This document examines the applicability of PCE to the ACTN
   framework.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on December 19, 2018.

Dhody, et al.           Expires December 19, 2018               [Page 1]
Internet-Draft                  PCE-ACTN                       June 2018

Copyright Notice

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Path Computation Element (PCE)  . . . . . . . . . . . . .   2
       1.1.1.  Role of PCE in SDN  . . . . . . . . . . . . . . . . .   3
       1.1.2.  PCE in multi-domain and multi-layer deployments . . .   4
       1.1.3.  Relationship to PCE based central control . . . . . .   4
     1.2.  Abstraction and Control of TE Networks (ACTN) . . . . . .   5
     1.3.  PCE and ACTN  . . . . . . . . . . . . . . . . . . . . . .   7
   2.  Architectural Considerations  . . . . . . . . . . . . . . . .   7
     2.1.  Multi domain coordination via Hierarchy . . . . . . . . .   7
     2.2.  Abstraction function  . . . . . . . . . . . . . . . . . .   8
     2.3.  Customer mapping function . . . . . . . . . . . . . . . .   9
     2.4.  Virtual Service Coordination  . . . . . . . . . . . . . .  10
   3.  Interface Considerations  . . . . . . . . . . . . . . . . . .  10
   4.  Realizing ACTN with PCE (and PCEP)  . . . . . . . . . . . . .  11
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  15
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  15
   7.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  15
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  15
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .  15
     8.2.  Informative References  . . . . . . . . . . . . . . . . .  16
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  19

1.  Introduction

1.1.  Path Computation Element (PCE)

   The Path Computation Element Communication Protocol (PCEP) [RFC5440]
   provides mechanisms for Path Computation Elements (PCEs) [RFC4655] to
   perform path computations in response to Path Computation Clients
   (PCCs) requests.

Dhody, et al.           Expires December 19, 2018               [Page 2]
Internet-Draft                  PCE-ACTN                       June 2018

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