论文部分内容阅读
容错性是大型网络的重要特性,而现有的评测参数难以进行准确的评价。引入路径损失作为评测参数,通过对因特网自治系统(AS,Autonomy System)网络拓扑数据的分析,研究了单节点失效情况下网络的容错特性,并与经典的网络模型相比较。结果表明,AS网络的容错特性表现出网络规模无关性,单节点失效引起的路径损失呈幂率规律变化,度较大和度较小的节点都可能对网络容错性产生较大影响,而现有的网络模型未能成功模拟AS网络的容错特性。
Fault tolerance is an important feature of large networks, and the existing evaluation parameters are difficult to accurately evaluate. By introducing the path loss as the evaluation parameter, the network fault tolerance of a single node failure case is studied by analyzing the network topology data of the Autonomous System (AS), and compared with the classical network model. The results show that the fault tolerant characteristics of AS networks show the network scale independence and the path loss caused by single node failure changes in a law of power law. The nodes with larger degrees and smaller degrees may have a greater impact on network fault tolerance. However, Network model failed to successfully simulate the AS network fault tolerance.