Whole network flow measurement method and system in data center network and packet loss detection method

Abstract

The invention discloses a whole network flow measurement method and system in a data center network and a packet loss detection method. The system comprises a collector used for supporting to capture all flows flowing through a switch, and the collector comprises a data packet analysis module, a buffer module and a counting table module; the data packet analysis module is used for analyzing quintuple information and data packet size information of a received data packet; the buffer module is used for establishing and maintaining a buffer space to buffer the traffic information and maintaining the traffic information in the buffer space; the buffer module updates the traffic information in an incremental operation mode; the counting table module is used for establishing and maintaining a counting table to store the flow information and maintaining the flow information in the counting table; and when the cache space of the cache module is not spare, the traffic information in the cache space is compressed and then is updated or added to the corresponding position of the counting table. The real-time performance, the accuracy and the comprehensiveness of the flow information can be ensured, and diversified network measurement requirements are supported.

Description

technical field [0001] The invention belongs to the technical field of network measurement, and in particular relates to a method and system for measuring network-wide traffic in a data center network and a packet loss detection method. Background technique [0002] The continuous expansion of the network scale makes the network structure of the data center gradually complicated. At the same time, the user's requirements for the network service quality and the company's requirements for the refined management of network equipment are also becoming higher and higher. The traditional way of manual troubleshooting is slow in response and low in processing efficiency, and cannot adapt to these new changes and new requirements. Therefore, normalized network traffic measurement is the basic means to manage and monitor these complex data center networks. Diversified network problems, such as network black holes, packet loss, and routing errors, have brought more and more challenge...

AI Technical Summary

Problems solved by technology

However, Sketch cannot effectively store all network traffic, and the loss of some traffic information caused by sampling will cause the traffic information to fail to reflect the real network status.

[0007] LossRadar only provides fast and effective detection of packet loss. Although it can achieve very good experimental results in packet loss detection, it cannot meet the diverse needs of measurement applications.

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