| The paper focuses on implementation of association pattern between the network performances and the general network faults. We use network simulation tool, OPNET, to accomplish network simulations of different network faults and different situations based on VoIP. Network performance parameters such as end-to-end delay, jitter, traffic dropped, queuing delay, link throughout, link utilization are monitored and collected. The simulation results are processed using data mining software to discover the association pattern.First of all, design network topology of LAN according to relevant literatures, design a number of different scenarios and different faults of IP telephone network based on the LAN. Use network simulation tools to accomplish network simulations.Secondly, combine the above network scenarios and network faults scenarios to generate typical network simulation scenes and run the simulation several times. During the simulation, collect network performance parameters and other information.Finally, process the simulation results with data mining software to discover the association patterns between network performance and network faults. |