基于流量统计的 P2P 网络关键节点识别

摘要

针对当前 P2P（peer-to-peer）网络普遍存在关键节点的现状，为了准确地识别 P2P 网络中的关键节点，通过分析关键节点的相应特点，提出了一种基于网络流量的 P2P 关键节点识别方法。通过提取网络流的空间特征等特性作为关键节点识别的依据，并以 Skype 作为研究对象，采用真实的流量数据进行验证测试。实验表明，该方法能够准确地识别出 Skype 网络中的关键节点，识别准确率较高，而且实时性较好。%In accordance with the prevalence of key nodes in P2P network,this paper analyzed the corresponding characteris-tics of key nodes and proposed a network-based novel to identify the key nodes in P2P network.It extracted the time and space characteristics of network flow as the basis for identifying key nodes.It selected the Skype as the research object and used real traffic data to verify and test.Experiment results show that the method can accurately identify the Skype key nodes in the net-work with the higher recognition accuracy and better real-time.