一、引言随着计算机网络的发展,网络维护问题已成为整个网络系统能否正常工作的关键问题。在windows2000/xp中,利用交换机设备的网络通信组件和TCP/IP协议,就可以和Internet进行连接了,但有时候怎么也连不上因特网,其故障大致可以从交换设备是否正常运行、TCP/IP协议是否连通、设置不当使连接检测时间超长、端口的优化等方面分析。而在局域网中产生故障大致分为如下几 I. INTRODUCTION With the development of computer network, the problem of network maintenance has become a key issue for the entire network system to work normally. In windows2000 / xp, using the switch device network communication components and TCP / IP protocol, you can connect with the Internet, but sometimes why not even the Internet, the failure can be roughly from the exchange of equipment is functioning properly, TCP / IP protocol is connected, set the connection detection time is too long, the port optimization and other aspects of the analysis. Fault in the LAN can be divided into the following few