中文摘要：

介绍了Internet动力学和拓扑特征，分析了引发Internet级联故障的原因，提出了一种简单的Internet级联故障模型（ICFM）．仿真实验验证了Internet存在的自组织临界特性，并进一步探讨了该特性可能的成因．该模型将有助于对Internet级联故障的检测和控制技术的研究．

英文摘要：

The features of dynamics and topology of Internet were introduced, the reasons of Internet cascading failures were detailedily analysed and then a simple Internet propagation model called ICFM （internet cascading failure model） was put forward. Simulation results show that the Internet does have the characteristic of self-organized criticality, whose potential causes are discussed in the paper, and the model will contribute a lot to the detection and control of Internet cascading failures.