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Anatomy of Multipath BGP Deployment in a Large ISP Network

Li, J; Zhou, S; Giotsas, V; (2020) Anatomy of Multipath BGP Deployment in a Large ISP Network. In: Proceedings of the 4th Network Traffic Measurement and Analysis Conference. IFIP Open Digital Library: Berlin, Germany. Green open access

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Abstract

Multipath routing is useful for networks to achieve load sharing among multiple routing paths. Multipath BGP (MBGP) is a technique to realize inter-domain multipath routing by enabling a BGP router to install multiple equally-good routes to a destination prefix. Most of previous works did not distinguish between intra-domain and inter-domain multipath routing. In this paper, we present a measurement study on the deployment of M-BGP in a large Internet service provider (ISP) network. Our method combines control-plane BGP measurements using Looking Glasses (LG), and data-plane traceroute measurements using RIPE Atlas. We focus on Hurricane Electric (AS6939) because it is a global ISP that connects with hundreds of major exchange points and exchanges IP traffic with thousands of different networks. And more importantly, we find that this ISP has by far the largest number of M-BGP deployments among autonomous systems with LG servers. Specifically, Hurricane Electric has deployed M-BGP with 512 of its peering ASes at 58 PoPs around the world, including many top ASes and content providers. We also observe that most of its M-BGP deployments involve IXP interconnections. Our work provides insights into the latest deployment of M-BGP in a major ISP network and it highlights the characteristics and effectiveness of M-BGP as a means to realize load sharing.

Type: Proceedings paper
Title: Anatomy of Multipath BGP Deployment in a Large ISP Network
Event: 4th Network Traffic Measurement and Analysis Conference, TMA 2020
Location: Berlin
Dates: 10 June 2020 - 11 June 2020
ISBN-13: 978-3-903176-27-0
Open access status: An open access version is available from UCL Discovery
Publisher version: http://dl.ifip.org/db/conf/tma/tma2020/index.html
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Multipath BGP, Internet, Looking Glass, traceroute, multipath routing, RIPE Atlas, IXP
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science
URI: https://discovery.ucl.ac.uk/id/eprint/10117632
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