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In this architecture, data packets are first collected by splitting or mirroring for attack detection. Then the attack detection module uses the detection algorithm to detect the attack. Although there are many attack detection methods such as Depth Package Analysis (DPI) and Depth/Dynamic Flow Detection (DFI) based on machine learning principles in academia, from the perspective of engineering efficiency, building traffic models and setting security thresholds or security baselines should be the most efficient methods. Although there are many types of DDOS attacks, their purpose is unique-to consume resources. Therefore, in the attack detection phase, the type of DDOS attack is not important, what matters is whether DDOS attack has occurred. At present. Even if the attack detection method of setting traffic threshold is adopted, it still faces the problem of how to set reasonable traffic threshold in many services.即便是英布没有和尹旭密谋，九江国也是个隐患。Picking up six months after the events of season 1, the next chapter of "The Hardy Boys" finds Frank and Joe tackling another complicated mystery when a local Bridgeport teen goes missing and a shadowy corporation moves into town.再又想，那为何不直接去清南村找秦枫呢？想来想去还是蠢　　FBI获悉有一伙恐怖分子准备在美国小姐选美时制造恐怖袭击，为挫败这次阴谋，FBI决定派卧底参加选美。任务自然落到了格雷西身上。经过造型师的巧手，格雷西令所有人都眼前一亮，她的“假小子”性格自然也令到这次任务笑料百出。后来蒙恬死了，蒙家衰败了，接手边军的王离却不甘心，他知道在大秦将士和百姓心中，蒙氏仍然高出他们王家。刘贾更担心的是襄阳出现什么问题，要是城池丢了，沔水中游的防线将完全被越军撕开。