Two-stage large-flow measurement method for software defined network
A technology oriented to software and measurement methods, applied in data exchange networks, electrical components, digital transmission systems, etc., can solve problems such as excessive dependence of measurement accuracy on sampling rate settings, difficulty in performing measurement on demand for TCAM resources, and difficulty in flexible deployment of measurement mechanisms , to achieve the effect of reducing the consumption of TCAM resources, optimizing the measurement rules, and reducing the quantity
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[0043] This embodiment gives an ISP or an enterprise network that adopts software-defined network SDN technology to measure large flows in the network based on the present invention, so as to grasp the distribution of large flows in the enterprise network, and to carry out network management, anomaly detection and Network billing provides a scientific basis.
[0044] Based on the two-stage large-flow measurement mechanism provided by the present invention, network administrators need to deploy and configure SDN controllers, sFlow collectors, and OpenFlow switches that support sFlow traffic sampling, etc. Make settings, and then the system can find large flows in the network according to the preset measurement cycle. Moreover, during the measurement process, the measurement period, sampling rate, large flow threshold, etc. can be dynamically adjusted according to needs, which further enhances the flexibility of the present invention.
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