PCE in Native IP Network
draft-ietf-teas-pce-native-ip-10

Document Type Active Internet-Draft (teas WG)
Last updated 2020-08-10
Replaces draft-wang-teas-pce-native-ip
Stream IETF
Intended RFC status Experimental
Formats plain text xml pdf htmlized (tools) htmlized bibtex
Reviews
Stream WG state Submitted to IESG for Publication
Document shepherd Lou Berger
Shepherd write-up Show (last changed 2020-06-07)
IESG IESG state Expert Review
Consensus Boilerplate Unknown
Telechat date
Responsible AD Deborah Brungard
Send notices to Lou Berger <lberger@labn.net>
TEAS Working Group                                               A. Wang
Internet-Draft                                             China Telecom
Intended status: Experimental                                B. Khasanov
Expires: February 11, 2021                           Huawei Technologies
                                                                 Q. Zhao
                                                        Etheric Networks
                                                                 H. Chen
                                                               Futurewei
                                                         August 10, 2020

                        PCE in Native IP Network
                    draft-ietf-teas-pce-native-ip-10

Abstract

   This document defines the architecture for traffic engineering within
   native IP network, using multiple BGP sessions strategy and PCE
   -based central control mechanism.  It uses the Central Control
   Dynamic Routing (CCDR) procedures described in this document, and the
   Path Computation Element Communication Protocol (PCEP) extension
   specified in draft ietf-pce-pcep-extension-native-ip.

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
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on February 11, 2021.

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
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of

Wang, et al.            Expires February 11, 2021               [Page 1]
Internet-Draft          PCE in Native IP Network             August 2020

   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  CCDR Architecture in Simple Topology  . . . . . . . . . . . .   4
   4.  CCDR Architecture in Large Scale Topology . . . . . . . . . .   5
   5.  CCDR Multiple BGP Sessions Strategy . . . . . . . . . . . . .   6
   6.  PCEP Extension for Key Parameters Delivery  . . . . . . . . .   8
   7.  Deployment Consideration  . . . . . . . . . . . . . . . . . .   9
     7.1.  Scalability . . . . . . . . . . . . . . . . . . . . . . .   9
     7.2.  High Availability . . . . . . . . . . . . . . . . . . . .   9
     7.3.  Incremental deployment  . . . . . . . . . . . . . . . . .  10
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  10
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  10
   10. Acknowledgement . . . . . . . . . . . . . . . . . . . . . . .  11
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  11
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  11
     11.2.  Informative References . . . . . . . . . . . . . . . . .  12
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  12

1.  Introduction

   [RFC8735] describes the scenarios and simulation results for traffic
   engineering in the native IP network to provide End-to-End (E2E)
   performance assurance and QoS using PCE based centralized control,
   referred to as Centralized Control Dynamic Routing (CCDR).  Based on
   the various scenarios and analysis as per [RFC8735], the solution for
   traffic engineering in native IP network should meet the following
   criteria:

   o  Same solution for native IPv4 and IPv6 traffic.

   o  Support for intra-domain and inter-domain scenarios.

   o  Achieve End to End traffic assurance, with determined QoS
      behavior.

   o  No upgrade to forwarding behaviour of the router.

   o  Capable to exploit the power of centrally control and the
      flexibility/robustness of distributed control protocol.

Wang, et al.            Expires February 11, 2021               [Page 2]
Internet-Draft          PCE in Native IP Network             August 2020
Show full document text