Traffic matrix estimation using spike flow detection

Susumu Shimizu*, Kensuke Fukuda, Ken Ichiro Murakami, Shigeki Goto

*この研究の対応する著者

    研究成果: Article査読

    2 被引用数 (Scopus)

    抄録

    This paper proposes a new method of estimating real-time traffic matrices that only incurs small errors in estimation. A traffic matrix represents flows of traffic in a network. It is an essential tool for capacity planning and traffic engineering. However, the high costs involved in measurement make it difficult to assemble an accurate traffic matrix. It is therefore important to estimate a traffic matrix using limited information that only incurs small errors. Existing approaches have used IP-related information to reduce the estimation errors and computational complexity. In contrast, our method, called spike flow measurement (SFM) reduces errors and complexity by focusing on spikes. A spike is transient excessive usage of a communications link. Spikes are easily monitored through an SNMP framework. This reduces the measurement costs compared to that of other approaches. SFM identifies spike flows from traffic byte counts by detecting pairs of incoming and outgoing spikes in a network. A matrix is then constructed from collected spike flows as an approximation of the real traffic matrix. Our experimental evaluation reveals that the average error in estimation is 28%, which is sufficiently small for the method to be applied to a wide range of network nodes, including Ethernet switches and IP routers.

    本文言語English
    ページ(範囲)1484-1491
    ページ数8
    ジャーナルIEICE Transactions on Communications
    E88-B
    4
    DOI
    出版ステータスPublished - 2005

    ASJC Scopus subject areas

    • 電子工学および電気工学
    • コンピュータ ネットワークおよび通信

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