论文标题
大型ISP网络中多径BGP部署的解剖结构
Anatomy of Multipath BGP Deployment in a Large ISP Network
论文作者
论文摘要
多路径路由对于网络实现多个路由路径之间的负载共享非常有用。 Multipath BGP（MBGP）是一种通过启用BGP路由器安装到目标前缀的多个同等良好型路由来实现域间多路径路由的技术。以前的大多数工作都没有区分内域和域间多径路由。在本文中，我们介绍了一项有关在大型互联网服务提供商（ISP）网络中部署M-BGP的测量研究。我们的方法结合了使用外观玻璃（LG）（LG）和使用成熟地图集的数据平面traceroute测量的控制平面BGP测量。我们专注于飓风电气（AS6939），因为它是一个全球ISP，它与数百个主要交换点相关联，并与数千个不同的网络交换IP流量。更重要的是，我们发现该ISP是迄今为止使用LG服务器的自主系统中最多的M-BGP部署。具体而言，飓风电气部署了M-BGP，其中512个在全球58个流行音乐中，其中包括许多顶级ASES和内容提供商。我们还观察到其大多数M-BGP部署都涉及IXP互连。我们的工作提供了对主要ISP网络中M-BGP最新部署的见解，它突出了M-BGP的特征和有效性，作为实现负载共享的一种手段。
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.
