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Webcast-Catalyst9k
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Serial port status

When happen when "Serial0 is down, line protocol is up" and "Serial 0 is administratively down, line protocol is up"? Are they a possible status?

1 REPLY
Purple

Re: Serial port status

An interface will be administratively down when you issue the 'shutdown' command under it. If that is not the case, the interface will be down if there is either a hardware issue or the layer 2 protocol running on that link is down.

Paresh

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