...：信息安全，网络漏洞，套接字，分布式拒绝服务，简单邮件传输协议 [gap=13232]Key words Information Security，Network Fault，Socket，Distributed Denial Of Service，Simple Mail Transfer Protocol.
Finally, this paper proposes a prototype system of networkfault diagnosis.
最后给出一个网络故障诊断的原型系统。
2
The statistics of electric power company show that more than 80% letting off customer is leaded by distribution networkfault.
电力部门的统计资料表明，约80%以上的用户停电是由于配电网的故障造成的。
3
As modern computer networks increase in size and complexity, effective networkfault management and maintenance become more important and more difficult.