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Computer network self-diagnostic system Research and Implementation

Author: LuoLing
Tutor: WeiZuoLong
School: Huazhong University of Science and Technology
Course: Communication and Information System
Keywords: Network self-diagnosis Alarm cause and effect diagram Fault location Rulebase
CLC: TP393.06
Type: Master's thesis
Year: 2011
Downloads: 48
Quote: 0
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Abstract


With the ever-expanding scale computer networks , network complexity increases, the case of network failure is also increasing . Since the spread of a network failure , timeliness , relevance, and other features make diagnosing network failure quickly becomes very difficult, the resulting loss is also growing. Thereby increasing the network self- diagnostic capabilities , timely detect potential pitfalls , while the network fails to achieve rapid fault location and fault diagnostics to troubleshoot network problems as soon as possible to improve the robustness of the network is important. This paper introduces the network to achieve self-diagnostic system , including network fault management model based and SNMP protocols , while the network failures related concepts and features are described. Subsequently, through the analysis of the system function , the overall framework of the system is designed in accordance with the flow of information into the system layer of information collection , information processing and information management layer . Then discussed in detail the information processing layer uses the network self- diagnose certain key technical issues, including alarm detection , fault location and fault diagnosis technology . Alarm detection is the fault location and diagnosis , the paper elaborates three alarm detection. Network fault location is a network fault diagnosis to achieve difficult. By analyzing the characteristics of a network failure , the paper depends on the network topology information space Pictured alarm causal basis for analysis is based on causality diagram fault location algorithm, and the effectiveness of algorithms by examples . Next article describes fault diagnosis method based on rule-based reasoning principles and details of the diagnosis based on relational database design rule base and fault diagnosis process . Finally, the paper describes the main modules of the system implementation and system workflow and network environment by setting up a virtual demo , simulate a variety of network failure , verify the system's functionality and fault location , diagnostics method.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Computer network > General issues > Computer networks, test , run
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