Probabilistic probe selection method, system and device for fault diagnosis and application

A fault diagnosis and probe technology, applied in the field of network communication, can solve problems such as identification errors, increased complexity of the fault detection process, and uncertainty

Active Publication Date: 2021-03-02
XIDIAN UNIV
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Problems solved by technology

[0011] 1. Considering the influence of noise and other environmental factors in an uncertain environment, there may be cases where the probe detection results of all normal nodes may be invalid, which will cause a certain degree of identification to the results of fault detection and fault location errors and uncertainties;
[0012] 2. The fault location process needs to accurately locate the fault node. Compared with the fault detection process that only needs to find the minimum probes that can cover all network nodes to detect whether th

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[0086] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0087] Aiming at the problems existing in the prior art, the present invention provides a probabilistic probe selection method, system, equipment and application for fault diagnosis. The present invention will be described in detail below with reference to the accompanying drawings.

[0088] Such as figure 1 As shown, the probabilistic probe selection method for fault diagnosis provided by the present invention includes the following steps:

[0089] S101: Using a probabilistic greedy probe selection method in the fault detection stage to select the least probes that can cover all network nodes from the available probe set;...

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Abstract

The invention belongs to the technical field of network communication, and discloses a probabilistic probe selection method, system and device for fault diagnosis and application, and the method comprises the steps: selecting the fewest probes capable of covering all network nodes from an available probe set at a fault detection stage by adopting a probabilistic greedy probe selection method; sending the probes by the detection station to detect whether a fault node exists in the network, and once a failure probe exists, indicating that the fault node possibly exists in the network; and triggering a fault positioning process, and accurately positioning the fault node by using a probability minimum search probe selection method. According to the method, a large number of simulation experiments are established to evaluate the performance of the proposed algorithm, and the result shows that the algorithm has high fault positioning accuracy, low detection cost and extremely strong adaptivecapacity; and in an uncertain environment, a probability minimum search probe selection method for fault positioning is adopted, so that the influence of uncertain factors can be reduced, and the fault positioning accuracy is improved.

Description

technical field [0001] The invention belongs to the technical field of network communication, and in particular relates to a probability probe selection method, system, equipment and application for fault diagnosis. Background technique [0002] At present: In recent years, with the increase of global Internet users, mobile smart devices, and network user service demands, the scale and complexity of communication networks have shown a rapid growth trend, which has brought huge challenges to the operation of network management systems. The core problem is for fault management. Network components are prone to failure due to environmental factors or equipment aging, which is unavoidable in large-scale communication networks, so real-time fault diagnosis of communication networks is essential. For communication networks, the fault diagnosis process includes two parts: fault detection and fault location. Fault detection is the process of identifying whether a fault exists in th...

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Application Information

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IPC IPC(8): H04L12/24H04L12/26
CPCH04L41/0677H04L43/0805H04L43/0817H04L43/12H04L43/50Y04S10/52
Inventor 齐小刚李家慧汪直平刘立芳
Owner XIDIAN UNIV
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