Proceedings of IEEE 21st Annual Joint Conference of the IEEE Computer and Communications Societies
Characterizing the Internet Hierarchy from Multiple Vantage Points
作者:
Subramanian， L.， Agarwal， S.， Rexford， J. and Katz， R.H.
关键词:
Peer to peer computing； Web and internet services； Telecommunication traffic； Routing protocols； Computer science； IP networks； Contracts； Network topology； Performance analysis
摘要:
The delivery of IP traffic through the Internet depends on the complex interactions between thousands of autonomous systems (AS) that exchange routing information using the border gateway protocol (BGP). This paper investigates the topological structure of the Internet in terms of customer-provider and peer-peer relationships between autonomous systems, as manifested in BGP routing policies. We describe a technique for inferring AS relationships by exploiting partial views of the AS graph available from different vantage points. Next we apply the technique to a collection of ten BGP routing tables to infer the relationships between neighboring autonomous systems. Based on these results, we analyze the hierarchical structure of the Internet and propose a five-level classification of AS. Our characterization differs from previous studies by focusing on the commercial relationships between autonomous systems rather than simply the connectivity between the nodes.
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