Network fault positioning method and device
A network fault and location method technology, applied in the field of computer networks, can solve the problems of not considering the impact of noise, long time for fault location, lost fault location, etc., to improve positioning speed and anti-noise ability, improve accuracy, and ensure normal operation running effect
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[0033] The specific embodiments of the present invention will be described in further detail below in conjunction with the drawings and embodiments. The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.
[0034] figure 1 Is a flowchart of a method according to an embodiment of the present invention, such as figure 1 As shown, the method of the embodiment of the present invention includes the following steps:
[0035] 101. Establish a propagation model: use a static Bayesian network to model the correspondence between all possible faults and symptoms in the network, and then expand the static Bayesian model by adding time factors to obtain a dynamic Bayesian network model. There are two types of nodes in the Bayesian network model, namely the fault node F i t (Superscript indicates time slice, subscript indicates node number) and symptom node S i t (The superscript indicates the time slice, and the subscript indicat...
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