亚太区域的因特网拓扑分析

Internet topology in Asia-Pacific region

为分析因特网区域路由器级拓扑的结构特点,提出了一种基于Skitter数据的区域拓扑获取方法。利用ICANN提供的IP地址分配信息,通过检索CAIDA提供的Skitter数据,提取其中位于特定区域的IP路径,根据域名进行别名解析并最终生成区域拓扑信息。分析对比了亚太4个主要国家的路由器级拓扑的特性。分析结果表明,各个国家的网络拓扑在多个测度上均表现出相似的性质。与AS级拓扑的结论不同,幂率不能在严格意义上描述亚太主要国家网络拓扑的度分布。日本的网络规模较大但其平均路径长度较小。

In order to analyze the structural characteristics of internet area router-level topology, an area topology acquisition method based on skitter data was presented. With the IP addresses allocation in formation provided by ICANN, the IP paths located in specific area were extracted from skitter data provided by CAIDA. Through alias resolution based on domain names, the area topology was acquired. The router-level topology properties of the 4 Asia-Pacific countries were analyzed and compared. Analysis results show that the network topology of every country has similar properties on several metrics, that different from the research results of AS-level topology the power law does not in strict sense fit the degree distribution of the main Asia-Pacific countriesp topologies and that Japanese network size is larger while its average path length is shorter.