P2P分域网络动态负载均衡调度的抗脆弱性策略  

Dynamic load balancing scheduling strategy against vulnerability in P2P sub-domain network

作　　者：王建勇[1] 李玉玲[2] 景秀[1] 刘峰[1] 

机构地区：[1]华中农业大学理学院计算机科学系,武汉430070 [2]华中农业大学楚天学院信息工程学院,武汉430205

出　　处：《计算机工程与应用》2011年第24期84-87,共4页Computer Engineering and Applications

基　　金：中央高校基本科研业务费专项资金资助(No.52204-10161);华中农业大学"薪火"专项资助(No.52204-09035)

摘　　要：P2P网络中集散节点的存在加重了网络的脆弱性。提出一种动态负载均衡调度的抗脆弱性策略,该策略依据节点物理位置的邻近性对网络进行了分域,并设计出更为公平的函数对节点的负载进行动态的量化,当消费节点发出下载请求后,选择负载动态变化因子最小的节点作为服务节点,避免了单个节点负载猛增的情况,均衡了节点的负载。仿真证明该策略能有效抑制网络中集散节点的形成,增强网络的健壮性,从而达到保障P2P网络可持续健康发展的目的。The hubs in P2P network increase the network vulnerability.To reduce this kind of vulnerability,a dynamically scheduling strategy for network load balancing is proposed,in which,a P2P network is devided into several domains according to the physical location of P2P nodes,and then it designs a function which can quantify the load of nodes equitably and dynamically.When a consumer node sends a downloading request,the node with the smallest dynamic factor is selected as a server node,which can balance the load of P2P network effectively.Simulations show that this strategy can avoid the forming of hubs,enhance the robustness of network,and make P2P networks develop sustainably and healthily.

关 键 词：点对点(P2P)网络 负载均衡 脆弱性 分域 集散节点 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]