考虑度相关性的IP网络在相继故障下的弹性研究

On Resilience in Case of Cascading Failure with Considering the Degree Correlation

考虑网络中节点相关性对负荷重分配方式的影响,建立了新的相继故障模型。应用此模型在实际网络拓扑中进行仿真,并用S-弹性来衡量相继故障后网络的工作能力。仿真结果表明:度相关性对网络中相继故障的发生及故障产生的环境条件均有影响。而此结论也验证了本文所建立模型的正确性。

A model which contains the effect of degree correlation is set up. The model is used to simulate the behavior on the real network topologies with the metric--S-resilience, which meas- ures the working ability after the failure. The simulation results show that the degree correlation is certain to have effect on the occurrence and the circumstance of the cascading failures. As a re- sult, the model is available.