Ethernet problem

eng_ahmedaseng_ahmedas Posts: 69Member ■■□□□□□□□□
Hi All
I wish u r all in good health.i wish u could help me in this question.ihave a cisco router 1601.I have one ethernet interface.I enter ethernet interface mode and issue (no shutdown) command.then i return to privileged mode and issue (show interfaces ethernet 0), I expect to find "Ethernet is down,line protocol is down" but i found "Ethernet is up,line protocol is down" although i didn't connect interface wth any cables. can anyone explain while ethernet is up although it didn't connect to anything ???

Note:i do the same with serial interface,but it give me "Ethernet is down,line protocol is down"

Thanks in advance


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