中文摘要：

运用CAIDASkitter项目提供的Internet监测数据和统计手段对Internet的平均最短路径、节点度分布所具有的统计规律进行研究与分析。统计结果显示Intemet的拓扑结构是不均匀的，其内部集聚程度较高，网络中任意2个节点间的最短距离很小，整个网络的平均最短路径约为14跳，且Intemet节点的度分布服从幂律分布，证实了Internet不是一种随机网络，而是一种同时具有“小世界”和“无尺度”网络特征的复杂网络。

英文摘要：

Using the Internet monitoring data offered by CAIDA Skitter project and the method of statistics, the statistical regularity of average shortest path and node degree distribution of the Internet are studied and analyzed. Statistical result reveals the topology of the Internet is not homogeneous. It is a highly clustered network, which means the shortest distance between two random nodes is short. The average shortest path of the Internet is about 14 hops. The node degree distribution is power-law distribution. The statistical results also show that the Internet is not random network, but complex network with the characteristics of ＂small world＂ and ＂scale-free＂.