Analysis Of The Fault Propagation Of Internet Topology And The Enchancement Of Robust Performance

With the development of today's society,the Internet has become an indispensable part of modern society.Science and technology,education,politics,society,life and even China's infrastructure depend on the operation of the Internet.With the development of the Internet world,network security has become a research hotspot in society.In order to meet people's requirements for network security and reliability,it is necessary to prevent the occurrence of network topology failures one after another,and research on the enhancement of network robustness has become an urgent need of human society.Someone made a corresponding analysis of the Internet failure,but only limited to the theoretical basis.In this paper,we mainly analyze the network topology robustness and network defense,and analyze the network failure problem by destroying the topology nodes or edges.The article mainly did the following four aspects of work.First,to introduce the theory of complex networks,firstly,the load analysis of complex network nodes is given,and the conclusions of successive failures are given in theory.Then,the robustness of complex networks is introduced in detail.And introduced a scale-free network and small-world network two network models.Second,in the robustness analysis of interconnection,we introduce the methods of network measurement and sample extraction,as well as the data correction.Because most of the random networks are power-law distribution,single-point measurement has some influence on the network.Then it introduces the network collapse in the face of deliberate attacks,random attacks and hybrid attacks theoretically.Thirdly,it introduces the measure of network robustness,introduces several indexes of measurement robustness in detail,and various methods of measuring robustness.Fourthly,simulate the Internet topology from an experimental point of view,aiming at the robustness of the Internet in the event of an attack and research on the robus-tness enhancement method.Through the increase of network redundancy,the robustness is enhanced,but the increase of redundancy also increases the cost of the network,so it is necessary to measure the cost performance.