| 基于节点连接模式的P2P节点识别算法 |
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| 引用本文： | 鲁文斌,杨家海,刘洪波.基于节点连接模式的P2P节点识别算法[J].清华大学学报(自然科学版),2009(7). |
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| 作者姓名： | 鲁文斌 杨家海 刘洪波 |
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| 作者单位： | 清华大学信息网络工程研究中心清华信息科学与技术国家实验室（筹）; |
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| 基金项目： | 国家科技支撑计划项目(2008BAH37B05);;国家“八六三”高技术项目(2007AA01Z2A2);;国家“九七三”基础研究基金项目(2009CB320505) |
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| 摘 要： | 针对对等网络(P2P)技术网络的分布式特点,依据节点在单位时间内连接的目的子网数量(d值)和节点单位时间内连接的目的IP数目与有效连接数目的比值(m值)特性,提出一种基于节点连接特性的P2P节点识别算法。P2P节点的d值和m值都明显大于其他节点(如典型的HTTP节点),并存在一个阈值区间,据此可高效识别P2P节点。在清华大学校园网上的实验结果显示,该算法比当前主流的算法识别效果更好,节点误识别率和丢失率都小于5%。
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| 关 键 词： | 网络测量 流量识别 P2P 连接特性 P2P节点 |
Identification of P2P peers based on connection patterns |
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| LU Wenbin,YANG Jiahai,LIU Hongbo.Identification of P2P peers based on connection patterns[J].Journal of Tsinghua University(Science and Technology),2009(7). |
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| Authors: | LU Wenbin YANG Jiahai LIU Hongbo |
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| Institution: | Network Research Center;Tsinghua National Laboratory for Information Science and Technology;Tsinghua University;Beijing 100084;China |
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| Abstract: | The distribution characteristics of P2P networks were analyzed to develop an algorithm to identify P2P peers based on two connection characteristics.The first is the number of destination subnets to be connected per unit time,d,while the second is the ratio of the number of destination IPs to be connected to the valid number of connections per unit time,m.Tests show that d and m for P2P peers are much larger than those of nodes running other applications.The thresholds for d and m can then be obtained for e... |
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| Keywords: | network measurement traffic identification P2P connection characteristics P2P peer |
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