Internet Exchange Route Server
draft-ietf-idr-ix-bgp-route-server-05
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IDR Working Group E. Jasinska
Internet-Draft Netflix, Inc
Intended status: Standards Track N. Hilliard
Expires: December 11, 2014 INEX
R. Raszuk
NTT MCL Inc.
N. Bakker
Akamai Technologies B.V.
June 9, 2014
Internet Exchange Route Server
draft-ietf-idr-ix-bgp-route-server-05
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
Task Force (IETF). Note that other groups may also distribute
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Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on December 11, 2014.
Copyright Notice
Copyright (c) 2014 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
Jasinska, et al. Expires December 11, 2014 [Page 1]
Internet-Draft IX BGP Route Server June 2014
Provisions Relating to IETF Documents
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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
facilities for their participants, typically using shared Layer-2
networking media such as Ethernet. The Border Gateway Protocol (BGP)
[RFC4271], an inter-Autonomous System routing protocol, is commonly
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