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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.5.13 Muscle diseases affecting function are unqualified.这汤瞧着就好，我尝尝——他将汤舀进碗里，然后端起碗喝了一口，咂巴了两下嘴，见众人都盯着他，忙道：我再喝一口。改编自前黑道集团干部冲田卧龙的同名小说。故事以兵库县尼崎市为舞台，讲述服完14年刑期后的主角?阵内宗介（北村有起哉）出狱后，在彻底改变的社会中努力生存的故事。/lieOne comment, one click to read