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Policy-Preferred Paths In As-Level Internet Topology Graphs, Mehmet Engin Tozal
Policy-Preferred Paths In As-Level Internet Topology Graphs, Mehmet Engin Tozal
Theory and Applications of Graphs
Using Autonomous System (AS) level Internet topology maps to determine accurate AS-level paths is essential for network diagnostics, performance optimization, security enforcement, business policy management and topology-aware application development. One significant drawback that we have observed in many studies is simplifying the AS-level topology map of the Internet to an undirected graph, and then using the hop distance as a means to find the shortest paths between the ASes. A less significant drawback is restricting the shortest paths to only valley-free paths. Both approaches usually inflate the number of paths between ASes; introduce erroneous paths that do not conform to …