show interface f0/1 //直接看某个接口相关信息pbin_cdswitch#sh int f0/24FastEthernet0/24 is up, line protocol is up (connected)//显示接口的物理层和数据链路层状态。Hardware is Fast Ethernet, address is 0012.01e8.6118 (bia 0012.01e8
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