R0106-HP MSR Router Series Interface Command Reference(V7)

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Field Description
Link
Physical link state of the interface:
• UP—The physical link of the interface is up.
• DOWN—The physical link of the interface is down.
• ADM—The interface has been administratively shut down. To
bring up the interface, use the undo shutdown command.
• Stby—The interface is operating as a backup interface.
Protocol
Data link layer state of the interface:
• UP—The data link layer of the interface is up.
• DOWN—The data link layer of the interface is down.
• UP(s)—The data link layer of the interface is spoofing up. This
state is available for on-demand link setup applications. This
state enables the device to initiate an on-demand link setup
when a link is not present.
Main IP Main IP address of the interface.
Description Description of the interface.
Cause
Cause of a DOWN physical link. If the port has been shut down
by using the shutdown command, this field displays
Administratively. To restore the physical state of the interface, use
the undo shutdown command. Not connected means there is no
physical connection (no cable is available or the cable is faulty).
Related commands
reset counters interface
display interface serial
Use display interface serial to display information about serial interfaces.
Syntax
display interface [ serial [ interface-number ] ] [ brief [ description | down ] ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
interface-number: Specifies a serial interface by its number.
brief: Displays brief interface information. If you do not specify this keyword, the command displays
detailed interface information.
description: Displays complete interface descriptions. If you do not specify this keyword, the command
displays only the first 27 characters of interface descriptions.
down: Displays physically down interfaces and their down causes. If you do not specify this keyword, this
command displays information about interfaces in all states.