BGP Extensions for Routing Policy Distribution (RPD)
draft-li-idr-flowspec-rpd-05

Document Type Active Internet-Draft (candidate for idr WG)
Last updated 2019-07-07
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Network Working Group                                              Z. Li
Internet-Draft                                                    Huawei
Intended status: Standards Track                                   L. Ou
Expires: January 8, 2020                                          Y. Luo
                                                  China Telcom Co., Ltd.
                                                                   S. Lu
                                                                 Tencent
                                                                 H. Chen
                                                               Futurewei
                                                               S. Zhuang
                                                                 H. Wang
                                                                  Huawei
                                                            July 7, 2019

          BGP Extensions for Routing Policy Distribution (RPD)
                      draft-li-idr-flowspec-rpd-05

Abstract

   It is hard to adjust traffic and optimize traffic paths on a
   traditional IP network from time to time through manual
   configurations.  It is desirable to have an automatic mechanism for
   setting up routing policies, which adjust traffic and optimize
   traffic paths automatically.  This document describes BGP Extensions
   for Routing Policy Distribution (BGP RPD) to support this.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

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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   material or to cite them other than as "work in progress."

Li, et al.               Expires January 8, 2020                [Page 1]
Internet-Draft                   BGP RPD                       July 2019

   This Internet-Draft will expire on January 8, 2020.

Copyright Notice

   Copyright (c) 2019 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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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Problem Statements  . . . . . . . . . . . . . . . . . . . . .   3
     3.1.  Inbound Traffic Control . . . . . . . . . . . . . . . . .   3
     3.2.  Outbound Traffic Control  . . . . . . . . . . . . . . . .   4
   4.  Protocol Extensions . . . . . . . . . . . . . . . . . . . . .   5
     4.1.  Using a New AFI and SAFI  . . . . . . . . . . . . . . . .   5
     4.2.  BGP Wide Community  . . . . . . . . . . . . . . . . . . .   6
       4.2.1.  New Wide Community Atoms  . . . . . . . . . . . . . .   6
     4.3.  Capability Negotiation  . . . . . . . . . . . . . . . . .  12
   5.  Consideration . . . . . . . . . . . . . . . . . . . . . . . .  12
     5.1.  Route-Policy  . . . . . . . . . . . . . . . . . . . . . .  12
   6.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  13
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  13
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  14
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  14
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  15
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  15
     10.2.  Informative References . . . . . . . . . . . . . . . . .  16
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  16

1.  Introduction

   It is difficult to optimize traffic paths on a traditional IP network
   because of:

   o  Heavy configuration and error prone.  Traffic can only be adjusted
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