思科路由器接口状态描述

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所属分类:Route

配置好路由器以后,发现彼此无法访问?如何进行排错呢?首先检查接口状态
本文以fastethernet 0/1举例:
Router#show interface fastethernet 0/0 //查看快速以太网0/0接口信息
①:Operational: FastEthernet 0/0 is up, line protocol is up //可操作,接口正常;
②:Connection Problem::FastEthernet 0/0 is up, line protocol is down //端口已经打开,线路存在问题,如没有插好线;
③:Interface Problem:FastEthernet 0/0 is down, line protocol is down //插槽存在问题;
④:Disabled: FastEthernet0/0 is administratively down, line protocol is down //被关闭;
⑤:FastEthernet 0/0 is up:Carrier Detect //载波检测:已经被管理员no shutdown;
⑥:Line protocol is up:Keep alives //保存存活:已经可以正常收发数据;
扩展阅读:静态路由配置方法

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