一种改进的网络故障监测算法

为了减少网络监测开销，基于分层分布式网络管理体系结构．提出了一种改进的动态网络监测算法，算法根据SNMP网络管理方式中的轮询和事件通知获得的网络状态数据．预测发生告警的可能性．如果没有告警的可能性，则延时轮询．该方法既不满报告警．又有效地降低了网络管理的通信负担．仿真结果表明，提出的监测算法有效地减少了轮询次数，降低了管理信息占用的带宽．提高了网络管理的有效性．

An improved algorithm for moitoring the network fault

Based on the hierarchical network architecture, we propose an improved dynamic monitoring algorithm for reducing the management overhead. By analyzing the probability of the alarm occurrece with the sampled network information, the proposed algorithm prolongs the interval between two consecutive pollings when no alarm could occur. This method significantly reduces the amount of monitoring traffic and guarantee to detect the abnormal event. The simulation results show that the proposed monitoring scheme reduces both the number of pollings and the cost of the network management, and consequently improves the network performance.