A Flow Exporting System Building on Network Processor

C. An and Jiahai Yang (PRC)


Traffic Management Engineering, Traffic Capture, Flow Aggregation, Network Processor


Understanding the characteristics of the traffic in operational network is crucial to network design and operation. As the network bandwidth grows, it’s difficult for capturing and recording network traffic information. We overcome this by introducing network processor to conduct network traffic capture and export flow information. We proposed an algorithm based on packet classification to aggregate packets to flow. The algorithm makes use of the characteristics of flow aggregating. The space of it can be discontinuous and the rule of it can be updated dynamically, it's scalable and flexible. Both laboratory testing and practical operation proved that the system has high performance and is stable.

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