Lightweight DDoS attack detection device and method on high-speed network
An attack detection and high-speed network technology, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve the problems of large occupied space, large number of counters, space waste, etc., to improve accuracy and control space overhead Upper limit, the effect of reducing false positives
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[0048] The present invention discloses a lightweight DDoS attack detection device and detection method on a high-speed network. The following describes the present invention in combination with the examples of specific schemes. It should be understood that these examples are only used to illustrate the present invention and not to limit the present invention. Range.
[0049] The overall idea of the present invention is: because the performance of the DDoS flood attack on the flow is usually the rapid increase of the flow, the structure of Sketch is used to store, summarize and detect the flow in the network. In view of the large space used and waste of space in Sketch, multiple Sketch combinations with smaller space are used to dynamically create Sketch, dynamically apply for space, and try to avoid waste of space. In this structure, the large traffic will be concentrated in the high-level Sketch, which facilitates the detection of DDoS attack traffic.
[0050] Such as image 3 ...
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