Research And Implement Of Network Fault Diagnosis In Local Area Network

With the fast expansion of network-scale and the constant increase of heterogeneousnetwork, network fault management was becoming more and more important. As one of themost important functions in network fault management, network fault diagnosis is thehotspot of research today. The article researches SNMP and some parts related close tofault information in it. After analyzed some approaches of alarm correlation especially theCase-Based Reasoning approach, this thesis proposed a prototype system of network faultdiagnosis that used Case-Based Reasoning approach and implemented some functions. Thissystem used object oriented method to express the case. Considering the defect of nearestneighbor approach, we used the clustering approach plotting out the case base first. Thisway increased the efficiency of case-searches. We also researched the deleting approachof sort-based in case maintenance, introduced the case-used frequency in practice, wetaken high efficiency performance into account in all the system's design.