Method, device and system for evaluating network reliability

A technology for evaluating device and reliability, which is applied in the field of communication, can solve problems such as incapable of comprehensive and effective network reliability analysis, error-prone fault tree practical analysis significance, etc., to achieve the effect of reducing difficulty and ensuring comprehensiveness

Active Publication Date: 2011-04-27
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In the process of research and practice of the prior art, the inventors of the present invention have found that the fault tree of the system constructed by the FTA method is not a model that includes all possible system failures or all system failure reasons, and the fault tree It can only express two states of success or failure, and can only describe the system at a certain moment, and it is easy to make mistakes during the construction process, and the constructed fault tree does not necessarily have practical analysis meaning, that is, the fault tree cannot Comprehensive and effective analysis of network reliability

Method used

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  • Method, device and system for evaluating network reliability
  • Method, device and system for evaluating network reliability
  • Method, device and system for evaluating network reliability

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Experimental program
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Embodiment 1

[0041] This embodiment will be described from the perspective of a network reliability evaluation device. It should be noted that the applicable analysis object of the solutions provided by the embodiments of the present invention is a communication network based on Internet Protocol (IP, Internet Protocol).

[0042] A network reliability evaluation method, comprising: obtaining network topology information, determining an analysis object according to the obtained network topology information, then obtaining a network failure mode of the analysis object, and analyzing the reliability of the analysis object hierarchically according to the network failure mode , get the reliability evaluation result, and output the reliability evaluation result. Such as figure 1 As shown, the specific process can be as follows:

[0043] 101. Obtain network topology information;

[0044] Wherein, the topology information may include: network element (or called node), product name or product nu...

Embodiment 2

[0067] According to the method described in Embodiment 1, an example will be given below for further detailed description.

[0068] Such as figure 2 As shown, the specific process can be as follows:

[0069] 201. The network reliability evaluation device obtains network topology information; wherein, the network topology information includes: a network element (the network element can be used as a node in the network), the product name or product number corresponding to the network element, connection relationship, connection name and connection type etc. Methods for obtaining network topology information may include, but are not limited to, the following methods:

[0070] Import the existing network diagram, or draw the network diagram through human-computer interaction, that is, receive the network diagram input by the user by drawing.

[0071] 202. The network reliability evaluation device determines analysis nodes and connections according to the obtained network topol...

Embodiment 3

[0141] In order to better implement the above method, an embodiment of the present invention also provides a network reliability evaluation device correspondingly, such as Figure 8 As shown, the network reliability assessment device includes a topology analysis unit 301 , an object determination unit 302 , a failure mode acquisition unit 303 and a reliability analysis unit 304 . Of course, a result output unit 305 can also be included (see Figure 8 The dotted frame part);

[0142] The topology analysis unit 301 is configured to obtain network topology information; wherein, the topology information may include: a network element (or called a node), a product name or product number corresponding to the network element, a connection relationship, a connection name and a connection type, etc.; for example , to obtain the existing network diagram; or, to receive the network diagram input by the user by drawing;

[0143] An object determination unit 302, configured to determine ...

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Abstract

The embodiment of the invention discloses a method, a device and a system for evaluating network reliability. In the embodiment, an object to be analyzed can be determined by acquiring network topology information, further network fault modes of the object to be analyzed can be acquired, and the reliability of the object to be analyzed can be hierarchically and completely analyzed and evaluated aiming at the fault modes. Because an idea of hierarchical analysis is introduced into the analysis and analytic attributes of the object to be analyzed (such as a node, connection and the like) are hierarchically divided, a network is effectively decomposed, the completeness of decomposition analysis is guaranteed, and the difficulty of the analysis is also reduced.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a network reliability evaluation method, device and system. Background technique [0002] To ensure network reliability, it is necessary to know the overall status of the current network reliability. What points in the network can cause network failures? how? How serious is the failure? How long might it be? How often? Wait for a series of questions, only after these questions are answered clearly, can we give practical and feasible solutions to these problems and enhance network reliability. To answer these questions, network reliability analysis is required. [0003] Existing reliability analysis techniques mainly include Failure Mode Effect Analysis (FMEA, Failure Mode Effect Analysis) and Fault Tree Analysis (FTA, Fault Tree Analysis). Among them, relatively speaking, the current FTA method is more widely used in the comprehensive network reliability anal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L29/08
CPCH04L41/145H04L41/142H04L41/12
Inventor 张淑萍申林飞王熠叶志华
Owner HUAWEI TECH CO LTD
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