Internet Exchange BGP Route Server
draft-ietf-idr-ix-bgp-route-server-07

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Last updated 2015-06-08
Replaces draft-jasinska-ix-bgp-route-server
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IDR Working Group                                            E. Jasinska
Internet-Draft                                                BigWave IT
Intended status: Standards Track                             N. Hilliard
Expires: December 10, 2015                                          INEX
                                                               R. Raszuk
                                                           Mirantis Inc.
                                                               N. Bakker
                                                Akamai Technologies B.V.
                                                            June 8, 2015

                   Internet Exchange BGP Route Server
                 draft-ietf-idr-ix-bgp-route-server-07

Abstract

   This document outlines a specification for multilateral
   interconnections at Internet exchange points (IXPs).  Multilateral
   interconnection is a method of exchanging routing information between
   three or more exterior BGP speakers using a single intermediate
   broker system, referred to as a route server.  Route servers are
   typically used on shared access media networks, such as Internet
   exchange points (IXPs), to facilitate simplified interconnection
   between multiple Internet routers.

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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   This Internet-Draft will expire on December 10, 2015.

Copyright Notice

   Copyright (c) 2015 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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   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   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 to Multilateral Interconnection . . . . . . . . .  3
     1.1.  Notational Conventions . . . . . . . . . . . . . . . . . .  3
   2.  Technical Considerations for Route Server Implementations  . .  4
     2.1.  Client UPDATE Messages . . . . . . . . . . . . . . . . . .  4
     2.2.  Attribute Transparency . . . . . . . . . . . . . . . . . .  4
       2.2.1.  NEXT_HOP Attribute . . . . . . . . . . . . . . . . . .  4
       2.2.2.  AS_PATH Attribute  . . . . . . . . . . . . . . . . . .  4
       2.2.3.  MULTI_EXIT_DISC Attribute  . . . . . . . . . . . . . .  5
       2.2.4.  Communities Attributes . . . . . . . . . . . . . . . .  5
     2.3.  Per-Client Policy Control in Multilateral
           Interconnection  . . . . . . . . . . . . . . . . . . . . .  5
       2.3.1.  Path Hiding on a Route Server  . . . . . . . . . . . .  6
       2.3.2.  Mitigation of Path Hiding  . . . . . . . . . . . . . .  7
         2.3.2.1.  Multiple Route Server RIBs . . . . . . . . . . . .  7
         2.3.2.2.  Advertising Multiple Paths . . . . . . . . . . . .  7
       2.3.3.  Implementation Recommendations . . . . . . . . . . . .  8
   3.  Security Considerations  . . . . . . . . . . . . . . . . . . .  8
   4.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . .  9
   5.  Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . .  9
   6.  References . . . . . . . . . . . . . . . . . . . . . . . . . .  9
     6.1.  Normative References . . . . . . . . . . . . . . . . . . .  9
     6.2.  Informative References . . . . . . . . . . . . . . . . . .  9
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 10

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1.  Introduction to Multilateral Interconnection

   Internet exchange points (IXPs) provide IP data interconnection
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