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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.胡敬嘴边溢出鲜血，颤声道：你……你好大的胆子。四个师兄弟，一个江湖局；睿智擒狡寇，侠名传神州。根据新代武侠大师－温瑞安的代表作改编，让你再次领略江湖的血雨腥风……且不敢洗冷水澡，身上只怕还不如板栗身上干净。唐亦琛是首批华籍机师，由于妻子病情恶化，唐亦琛决定辞去机师一职陪妻子环游世界，但妻子不想让丈夫看到自己濒死的惨状，选择悄然离开……唐亦琛一直没有回港，在英国一住就是两年。两年间弟弟唐亦风到英国探望并希望亦琛重回工作岗位。亦琛与小餐馆老板关系友好，却从来没有见过她的女儿何年希。年希因为失恋自我放逐到处旅行，亦琛无意间解开了年希与男友间的心结，自己的心情也得到解放，决定结束假期，重回工作岗位。亦琛回到航空公司后巧遇夏晨，但因夏晨的样子酷似妻子，亦琛不自觉地把她当成妹妹看待，夏晨也视亦琛如兄长。之后年希也加入航空公司，顾夏阳对年希产生浓厚兴趣并展开追求。年希在夏阳身上看到前男友的影子，接受了他。亦风成了夏晨和夏阳的沟通桥梁，渐渐生出情愫，因为夏晨太像苏怡，亦风总觉得她就是自己的嫂子，无法冲破心理障碍，加上夏晨身边有一个暗恋她的以泰，令他与夏晨的关系裹足不前……/v cheer