互联网络连通性故障排除

以Cisco路由器为例,对路由器在互联网络中的作用进行了阐述.通过Show命令,查看路由器的广域网接口、以太网接口的状态以及接口的统计信息,分析路由器接口的各种不同状态及信息,利用常用的路由器诊断命令来判断、定位网络的故障点,从而排除局域网与广域网之间、局域网之间等的连通性故障.介绍了互联网络连通性故障常用路由器诊断Ping及trace等命令的使用、常见的TCP/IP连接的故障诊断及排除方法.

Solving method of router connection troubles

Router is the key equipment of net connection. The functions of router in Internet are described based on Cisco router. By the command Show, the interface of World Area Net, the states of Ethernet and the interface information are checked. Various states of router interface and information are analyzed. The trouble points of net are located and decided by using general diagnosis command of router. Therefore, the connection troubles between Local Area Net and World Area Net, between one Local Area Net and the others are cleared. Meanwhile, the using of Ping and Trace commands for router diagnosis to the connection trouble, fault diagnosis of basic TCP/IP connection and the methods for trouble-shooting are introduced.