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Oie & Tsukamoto Laboratory HP > Publications > Publications of 2006 > Detail of Publications

Locating Congested Segments over the Internet Based on Multiple End-to-End Path Measurements
  Atsuo Tachibana, Shigehiro Ano, Toru Hasegawa, Masato Tsuru, Yuji Oie
  IEICE Trans. on Commun., E89-B(4), pp.1099-1109. 2006 / 4
  Since congestion is very likely to happen in the Internet, locating congested areas (path segments) along a congested path is vital to appropriate actions by Internet Service Providers to mitigate or prevent network performance degradation. We propose a practical method to locate congested segments by actively measuring one-way end-to-end packet losses on appropriate paths from multiple origins to multiple destinations, using a network tomographic approach. Then we conduct a long-term experiment measuring packet losses on multiple paths over the Japanese commercial Internet. The experimental results indicate that the proposed method is able to precisely locate congested segments. Some findings on congestion over the Japan Internet are also given based on the experiment.

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