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If an attack is detected, the management center will start a cleaning scheme to pull the mixed traffic of attack traffic and normal traffic through BGP, CDN, etc. Pull the mixed flow to the flow cleaning center for cleaning. The problem in the process of traffic cleaning is that the current DDOS attacks present a mixed attack state with multiple attack methods coexisting. In this case, how to efficiently detect attacks is the main problem currently facing. After consulting numerous data, Huawei's "seven-layer cleaning plan" is found to be very enlightening. The scheme comprehensively analyzes data packets for mixed traffic through seven layers of defense measures such as static filtering, abnormal message filtering, scanning and snooping message filtering, source legitimacy authentication, session-based prevention, feature identification filtering and traffic shaping, so as to detect attack traffic to the greatest extent. The framework of Huawei's "seven-layer cleaning scheme" is shown in Figure 2. After the traffic is cleaned, the attack traffic is discarded, and the normal traffic is injected back into the network through MPLS, GRE tunnel technology, etc.IT工程师丁人间（佟大为饰），剧中饰演尊崇个人奋斗敢爱敢恨的高级白领安清欢（陈乔恩饰），两人从不打不相识开始，经历无数插曲、误会，在嬉笑怒骂中把当下大时代中的代际冲突、价值观冲突、人生成败、何为真爱等话题进行了全景式展现。最终，小人物逆袭，高级白领放下身段。红椒听见刘井儿的声音，心中一动，也不往前了，前面人太多了，转而向他奔去。该剧是韩国KBS2电视台特别推出的中秋独幕剧，讲述了一位老人从难以忘还的初恋情人那里收到生日信后，一瞬间进入到1945年在广岛记忆中的故事。白胖子把头点得跟小鸡啄米似的，说马上就去。