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Overview:

Emerging network monitoring infrastructures capture packet-level traces or keep per-flow statistics at a set of distributed vantage points. Today, distributed monitors in such an infrastructure do not co-ordinate monitoring effort, which both can lead to duplication of effort and can complicate subsequent data analysis. The paper argues that nodes in such a monitoring infrastructure, whether across the wide-area Inter-net, or across a sensor network, should coordinate effort to minimize resource consumption. The paper proposes space-efficient data structures for use in gossip-based protocols to approximately summarize sets of monitored flows. With some fine-tuning of the methods, one can ensure that all flows observed by at least one monitor are monitored, and only a tiny fraction are monitored redundantly.

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Format:PDFSize:69 KB
Date:Dec 2007
Pages:4

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