On inferring regional AS topologies
Yohei Kuga, Kenjiro Cho, Osamu Nakamura · 2008
Analysis of AS-level topologies is an effective way to understand the Internet structure and its development. An AS topology represents logical connection relationships of networks, and thus, is independent of geographic locations of connections. However, the actual Internet topologies are constructed with geographical and physical limitations. In the meantime the global Internet topology is shifting from a U.S. centered star topology to a more distributed topology interconnecting regional hub ASes. Therefore, regional topology views would provide new insights to understanding changes in the Internet structures.