Internet动态节点特性的层级相关性研究

为了探究Internet拓扑动态节点演化特征的层级相关性，基于CAIDA项目授权的海量数据，结合网络科学的思想，分析了不同尺度下网络结构的演化机制.针对IP级与AS级拓扑，对层级与节点动态特性的相关性进行了分析，其中包括新生与消亡节点的动态变化比例、偏好依附、稳定连接数目等多个特性.结果表明:IP级拓扑节点的新陈代谢比AS级旺盛，IP级拓扑新生节点的非优先连接“偏好”比AS级稳定，新生连接中IP级拓扑的稳定连接数较多.IP级与AS级动态节点的演化有本质不同，为理解Internet的演化机制提供了基础.

Research on Correlation Between Internet Measurement Levels and Dynamic Nodes Characteristics

Introducing network science theories， the evolution mechanisms of different network scales were analyzed based on lots of data provided by the CAIDA project. As to the topologies of IP level and AS level， the correlation between the two levels and the characteristics of dynamic nodes were analyzed， including the dynamically changing proportion of birth/death nodes， preferential attachments and the number of stable attachments. The conclusions are as follows: firstly， IP level nodes are more active; secondly， the evolution of IP level non preferential attachments is more stable， and thirdly， the number of IP level stable attachments is much greater. The evolutions of the dynamic nodes in different measure levels are different in essence， which can provide a valid basis for understanding the Internet evolution mechanism.