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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.25-30 JuneABC宣布续订《分手同居》（Splitting Up Together）。　　几年过去了，海燕海君已经成了十一二岁的中学生，出落得亭亭玉立，能歌善舞，是学校里的两枝花，而金花一天到晚推车买鱼丸，辛苦操持家务，海燕根据童年的懵懂印象，认为是妈妈逼走了父亲，所以处处和母亲作对，反而是海君体谅母亲，给母亲帮助。在他的妻子突然去世以及与他与两个女儿断绝关系后，John Moore和他最好的朋友Charlie Wylde决定骑摩托车从纽约长岛到西海岸。 他们在这次旅途中欣赏到美丽的风景，也遇到许多有趣的人，并意外地发现自己的一些东西。“人生就是一次……又一次的一英里。”(four) other provisions of the medical security management.11. Code: dance; Dancing, etc.