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Assessing the accuracy of using aggregated traffic traces in network engineering

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Abstract

Aggregated traffic traces are commonly used in network engineering for QoS or performance parameters evaluation. Many performance models come from such aggregated traces. However, real traffic is a marked point process combining two processes: one for the arrival times of packets and the other for their size in bytes. This paper deals with assessing whether aggregated traces are a good representation of real traffic. Based on the analysis of many traffic traces, and focusing only on loss probability, it is shown that the packet drop probability obtained for the aggregated traffic traces can significantly differ from the real packet drop probability obtained for the real traffic traces. Then, a solution which enables one to obtain correct loss probability based on aggregated traffic traces is proposed by determining the correct aggregation scale and traffic parameters to be applied.

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Authors and Affiliations

  1. LAAS, CNRS, 7 avenue du Colonel Roche, 31077, Toulouse Codex 4, France

    Lucjan Janowski & Philippe Owezarski

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  1. Lucjan Janowski
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  2. Philippe Owezarski
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Correspondence to Lucjan Janowski.

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Janowski, L., Owezarski, P. Assessing the accuracy of using aggregated traffic traces in network engineering. Telecommun Syst 43, 223–236 (2010). https://doi.org/10.1007/s11235-009-9210-9

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  • DOI: https://doi.org/10.1007/s11235-009-9210-9

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