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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.When the invariant and variable behaviors are mixed together in the subclass implementation of the method, the invariant behaviors will repeat in the subclass. We move these behaviors to a single place through the template method pattern.该剧讲述的是在动乱的19世纪初，被差别对待的女人们成为了主人公，打破男女有别的观点寻求变化的故事，也是桃源大君李林与手足无措的新人女士官具海玲的浪漫故事。We began to test the effect of blending leaf juice with blue dye.　　改编自Robyn Carr小说的《维琴河 Virgin River》讲述女主Melinda Monroe（Alexandra Breckenridge饰）来到加州偏远小镇维琴河当护士，她认为这处是开展新生活，丢下痛苦回忆的好地方。不过她发现小镇生活没其预料般简单，如果Melinda真心希望以维琴河为家，她得自己振作起来。《维琴河》原著是多达20本的系列作，被列入Harpercollins 200大书榜中。故事开始于二十世纪八十年代。冯桃花是山区小镇一名农村户口的小学代课教师。她聪明漂亮，为人正直、善良，勤劳能干，对年轻英俊的班长林开远一见倾心。 　　白树生是和冯桃花一起从桃花村搬到小镇的当地青年，苦苦单恋冯桃花，遭到拒绝。 　　林开远复员后，去找冯桃花，帮助冯桃花度过各种难关，二人决定结婚。白树生不甘心冯桃花要嫁给林开远，便给冯桃花施加压力。冯桃花顶住压力，坚持要与林开远结婚。白树生无奈与姜淑娟结婚。新婚之夜，白树生写匿名信造谣中伤冯桃花，挑拨林开远和冯桃花的关系，林开远看信后虽然心中不悦，但并不相信信中的挑拨李老大沉默了一会，才道：按说，这话我不该提——我跟张大栓也是老邻居了，可是，他孙女也被人吵得忒不像样了。