Traffic matrix estimation using spike flow detection

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

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Pages (from-to)1484-1491
    Number of pages8
    JournalIEICE Transactions on Communications
    VolumeE88-B
    Issue number4
    DOIs
    Publication statusPublished - 2005

    Keywords

    • Network management
    • Network measurement
    • Spike flow
    • Traffic matrix

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Computer Networks and Communications

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