Online Measurement of Large Traffic Aggregates on Commodity Switches

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Traffic measurement plays an important role in many network-management tasks, such as anomaly detection and traffic engineering. However, existing solutions either rely on custom hardware designed for a specific measurement task, or introduce substantial overhead for data collection and analysis. Instead, the authors argue that a practical traffic-measurement solution should run on commodity network elements, support a wide range of measurement tasks, and provide accurate results with low overhead.