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[技术分享] 查看路由器的串口状态提示说

查看路由器的串口状态提示说

router#show interface serial 0/0           这条命令是查看s0/0口的连通情况(可查看路由器任意一个端口)
serial 0/0 is up ,line protocol is up --------端品口up,协议up ------ 可操作状态
erial 0/0 is up ,line protocol is down -------端口up,协议down ------  配置问题
serial 0/0 is down ,line protocol is down ----端口down,协议就算配置对也会提示down ------线路、接口问题
serial 0/0 is administratively down ,line protocol is down --------这样的提示是人为把端口给禁用了
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