Scenario, Simulation and Suggestion of PCE in Native IP Network
draft-ietf-teas-native-ip-scenarios-02

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Last updated 2018-10-22
Replaces draft-wang-teas-ccdr
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TEAS Working Group                                               A. Wang
Internet-Draft                                             China Telecom
Intended status: Experimental                                   X. Huang
Expires: April 24, 2019                                           C. Kou
                                                                    BUPT
                                                                   Z. Li
                                                            China Mobile
                                                                   P. Mi
                                                     Huawei Technologies
                                                        October 21, 2018

    Scenario, Simulation and Suggestion of PCE in Native IP Network
                 draft-ietf-teas-native-ip-scenarios-02

Abstract

   This document describes the scenarios, simulation and suggestions for
   PCE in native IP network, which integrates the merit of distributed
   protocols (IGP/BGP), and the power of centrally control technologies
   (PCE/SDN) to provide one feasible traffic engineering solution in
   various complex scenarios for the service provider.

Status of This Memo

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   This Internet-Draft will expire on April 24, 2019.

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   Copyright (c) 2018 IETF Trust and the persons identified as the
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   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 April 24, 2019                 [Page 1]
Internet-Draft  CCDR Scenario, Simulation and Suggestion    October 2018

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

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions used in this document . . . . . . . . . . . . . .   3
   3.  CCDR Scenarios. . . . . . . . . . . . . . . . . . . . . . . .   3
     3.1.  Qos Assurance for Hybrid Cloud-based Application. . . . .   3
     3.2.  Link Utilization Maximization . . . . . . . . . . . . . .   4
     3.3.  Traffic Engineering for Multi-Domain  . . . . . . . . . .   5
     3.4.  Network temporal congestion elimination.  . . . . . . . .   6
   4.  CCDR Simulation.  . . . . . . . . . . . . . . . . . . . . . .   6
     4.1.  Topology Simulation . . . . . . . . . . . . . . . . . . .   6
     4.2.  Traffic Matrix Simulation.  . . . . . . . . . . . . . . .   7
     4.3.  CCDR End-to-End Path Optimization . . . . . . . . . . . .   7
     4.4.  Network Temporal Congestion Elimination . . . . . . . . .   9
   5.  CCDR Deployment Consideration.  . . . . . . . . . . . . . . .  10
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  11
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  11
   8.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  11
   9.  Acknowledgement . . . . . . . . . . . . . . . . . . . . . . .  11
   10. Normative References  . . . . . . . . . . . . . . . . . . . .  11
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  12

1.  Introduction

   Service provider network is composed mainly thousands of routers that
   run distributed protocol to exchange the reachability information
   between them.  The path for the destination network is mainly
   calculated and controlled by the IGP/BGP protocols.  These
   distributed protocols are robust enough to support the current
   evolution of Internet but have some difficulties when application
   requires the end-to-end QoS performance, or in the situation that the
   service provider wants to maximize the links utilization within their
   network.

   MPLS-TE technology is one solution for finely planned network but it
   will put heavy burden on the routers when we use it to meet the
   dynamic QoS assurance requirements within real time traffic network.

   SR(Segment Routing) is another solution that integrates some merits
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