PCE in Native IP Network
draft-ietf-teas-pce-native-ip-10
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
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This Internet-Draft will expire on February 11, 2021.
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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.
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