%0 Journal Article
%T A Fault Monitoring Algorithm for Hierarchical Network<br>分层分布式网络故障监视算法研究
%A Zhang Xin
%A Chang Yi-lin
%A Sun Fang-tao
%A Shen Zhong
%A <br>张新
%A 常义林
%A 孙方涛
%A 沈中
%J 电子与信息学报
%D 2007
%I 
%X One mission of network management is to monitor the network effectively. The monitoring methods in Simple Networks Management Protocol (SNMP) are polling and trap. Both of them consume the system resources and network bandwidth. Based on the hierarchical network architecture, a dynamic monitoring algorithm is proposed so as to minimize the management overhead. By analyzing the probability of the alarm occurrence with the sampled network information, the proposed algorithm prolongs the interval between two consecutive polling when no alarm could occur. It also reduces the redundant alarm information resulted from the signal fluctuation. This method significantly reduces the amount of monitoring traffic and guarantees to detect the abnormal event. The simulation results show that the proposed monitoring scheme reduces both the number of polling and the cost of the network management, consequently improves the network performance.
%K Network monitoring
%K Fault management
%K Polling
%K Trap<br>网络监视
%K 故障管理
%K 轮询
%K 事件通知
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=C1EAB8F8448AFB08&yid=A732AF04DDA03BB3&vid=771469D9D58C34FF&iid=E158A972A605785F&sid=E3691231514F8E11&eid=FA519F4FF622280A&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=2&reference_num=5