Modeling and Analysis of Computer Network Cascading Failure
Changhai Wang · Journal of Logistical Engineering University · 2012
The load local re-distribution in past cascading failure model is not consistent with the really global routing in computer network.Taking into account such defect,the process of information flow transmission is simulated,the conditions of router failure are defined,and according to the characteristics of computer network routing,cascading failure modes based on load global re-distribution are established.Later,two cascading failure evaluation parameters based on network connectivity and network performance separately are proposed,and the influence of users' traffic and attack modes to the cascading failure on computer network is analyzed.The results show that:as the traffic increases,the cascading failure of network contains the phase transition behavior,the phase transition point describes the maximum transmission capacity of network when the cascading failure will not occur;and high-degree-node attack is easier to cause cascading failures,so high-degree-nodes should be protected specially.