Performance-based BGP Routing Mechanism
draft-ietf-idr-performance-routing-02

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Last updated 2019-10-13
Replaces draft-xu-idr-performce-routing
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Network Working Group                                              X. Xu
Internet-Draft                                              Alibaba, Inc
Intended status: Standards Track                                S. Hegde
Expires: April 12, 2020                                          Juniper
                                                           K. Talaulikar
                                                                   Cisco
                                                            M. Boucadair
                                                            C. Jacquenet
                                                          France Telecom
                                                        October 10, 2019

                Performance-based BGP Routing Mechanism
                 draft-ietf-idr-performance-routing-02

Abstract

   The current BGP specification doesn't use network performance metrics
   (e.g., network latency) in the route selection decision process.
   This document describes a performance-based BGP routing mechanism in
   which network latency metric is taken as one of the route selection
   criteria.  This routing mechanism is useful for those server
   providers with global reach to deliver low-latency network
   connectivity services to their customers.

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
   Task Force (IETF).  Note that other groups may also distribute
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   This Internet-Draft will expire on April 12, 2020.

Xu, et al.               Expires April 12, 2020                 [Page 1]
Internet-Draft                                              October 2019

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

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Performance Route Advertisement . . . . . . . . . . . . . . .   4
   4.  Capability Advertisement  . . . . . . . . . . . . . . . . . .   5
   5.  Performance Route Selection . . . . . . . . . . . . . . . . .   5
   6.  Deployment Considerations . . . . . . . . . . . . . . . . . .   6
   7.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .   7
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   8
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
   10. Security Considerations . . . . . . . . . . . . . . . . . . .   8
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .   8
     11.1.  Normative References . . . . . . . . . . . . . . . . . .   8
     11.2.  Informative References . . . . . . . . . . . . . . . . .   9
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  10

1.  Introduction

   Network latency is widely recognized as one of major obstacles in
   migrating business applications to the cloud since cloud-based
   applications usually have very clearly defined and stringent network
   latency requirements.  Service providers with global reach aim at
   delivering low-latency network connectivity services to their cloud
   service customers as a competitive advantage.  Sometimes, the network
   connectivity may travel across more than one Autonomous System (AS)
   under their administration.  However, the BGP [RFC4271] which is used
   for path selection across ASes doesn't use network latency in the
   route selection process.  As such, the best route selected based upon
   the existing BGP route selection criteria may not be the best from
   the customer experience perspective.

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