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[Time of Publication] January 4, 2016After the persist () call, this event object will not be destroyed and reused (into the event pool)(2) It is difficult for migrant workers to work;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.粟裕将军戎马一生，是革命的一生，战斗的一生，光辉的一生。在解放战争期间华东我军在粟裕等诸将领的率领下，积极贯彻毛泽东同志的战略思想，以少胜多，以弱胜强，先后取得了苏北、鲁南、莱芜、孟良崮、沙士集、豫东、济南、淮海、渡江等重大战役的辉煌胜利，所向披靡，战无不胜，创造了战争史上的奇迹。筹拍该剧，以影视形式展现粟裕将军富有传奇色彩的一生，对我们回顾我党我军光辉历史，缅怀革命先辈的丰功伟绩，年轻一代树立爱国思想教育，激发革命斗志，弘扬主旋律，有着积极重要的作用。Network firewall: It is often located at the entrance or edge of the network, and is protected against the entrance of the network and serves the local LAN behind the firewall.