Method for detecting and classifying all-network flow abnormity on line
A network traffic and abnormal technology, applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problems of immediate identification, unable to meet the actual needs of network security management, etc., achieve low storage overhead, meet real-time detection and classification network Exceptional, low-time-complexity effects
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[0033] Such as Picture 1-1 , Figure 1-2 , Figure 1-3 , diagram 2-1 , Figure 2-2 , image 3 As shown, the method for online detection and classification of abnormal network traffic in the present invention includes the following steps:
[0034] The first step is the collection of NetFlow traffic:
[0035] After the NetFlow traffic collector is used to receive the NetFlow data packets sent from the border router, the collector will analyze the data packets and aggregate the data flows to form a variety of data suitable for statistical analysis, and then transmit them to the central console through the network for storage. Into the database;
[0036] The second step is to construct a flow matrix measured by the entropy of flow characteristics:
[0037] Based on the original NetFlow flow data stored in the central console database and based on the border gateway protocol routing information, a flow matrix measured by the entropy of different flow characteristics is established; the f...
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