The Bayesian Network about Computer Network Failure Diagnosis under OSI

In this paper, in order to solve the problem of traditional computer networks fault diagnosis with low efficiency, pointed out a new computer network fault diagnosis method. And summary the common network problems and its symptoms, establish the Bayesian network diagram. This approach uses the Bayesian network for uncertainty reasoning, and finally according to every fault nodes´ probability of occurrence to determine the location of the fault node. Practice has proved that this approach can help to improve the efficiency of fault detection.