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Multi-domain collaborative distributed type fault diagnosis method and system

A fault diagnosis system and fault diagnosis technology, applied in transmission systems, digital transmission systems, electrical components, etc., can solve difficult and simple problems, and achieve the effects of improving accuracy, reducing influence, and improving accuracy

Inactive Publication Date: 2010-03-17
BEIJING UNIV OF POSTS & TELECOMM
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  • Claims
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Problems solved by technology

The scenario assumed in this paper is too simple, and it is difficult to extend its method to more domain situations

Method used

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  • Multi-domain collaborative distributed type fault diagnosis method and system
  • Multi-domain collaborative distributed type fault diagnosis method and system
  • Multi-domain collaborative distributed type fault diagnosis method and system

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Embodiment Construction

[0037] The present invention includes a distributed fault diagnosis system, such as figure 1shown. The system includes a domain manager within each administrative domain. This manager is responsible for management communication with some other domain managers (that is, the part of the domain that is related to each cross-domain symptom and may cause the symptom), and will cross-domain symptoms (that is, the symptom may be caused by failures in other domains) Assigned to the domain most likely to cause the symptom; and responsible for troubleshooting within this domain. Each domain manager includes an interface module, a management / information presentation module, a symptom exchange module, an impact assessment module, a symptom assignment module, a fault diagnosis module, a dependency model, and an alarm / fault information module.

[0038] The management / information presentation module can read and modify the dependency model and the alarm / fault information module to meet the...

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Abstract

The invention relates to a multi-domain collaborative distributed type fault diagnosis method and a system. Each domain of the system comprises a domain manager which can be communicated with other domain managers and assigns cross-domain warning / symptoms to the domain that is most probable to result in the cross-domain symptoms; and the domain managers is responsible for the fault diagnosis of the domains at which the domain managers are located. When the symptoms are exchanged, the current domain can only be communicated with partial other domains which may result in the symptoms so as to becapable of reducing communication overhead. The multi-domain collaborative distributed type fault diagnosis method and the system adopt the symptoms in the domains to carry out preliminary diagnosis,and then estimate the possibility for resulting in each cross-domain warning according to the preliminary fault assumption, improve the estimation accuracy, consider the possibility of wrongly distributed symptoms, calculate one fault symptom probability for each distributed symptom, and therefore can reduce the influence of wrong distribution on the diagnosis.

Description

technical field [0001] The invention relates to the field of fault diagnosis in computer networks, in particular to a multi-domain cooperative distributed fault diagnosis method and system. Background technique [0002] In large-scale complex environments, service management systems need to process a large amount of information. Researchers generally believe that management information and functions should be divided and managed in a distributed manner (see paper: A survey of fault localization techniques in computer networks). Partitioning data among managers will force managers to perform fault management based on incomplete information. Due to inter-domain fault propagation, a manager may receive problems propagated within the domains of other managers, and symptoms associated with a specific fault within a domain may not be visible within that domain. To locate faults in such complex environments, efficient distributed fault diagnosis algorithms are required. [0003]...

Claims

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Application Information

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IPC IPC(8): H04L12/24
Inventor 邹仕洪褚灵伟程时端王文东田春歧
Owner BEIJING UNIV OF POSTS & TELECOMM
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