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Link: ADM - administratively down; Stby -
standby
Link status:
ADM—Interface has been shut down administratively. To
recover its physical state, perform the undo shutdown command.
Stby—Interface is operating as a backup interface. To see the
primary interface, use the display standby state command in the
High Availability Command Reference.
If the network layer protocol state of an interface is shown as
UP, but its link is an on-demand link or not present at all, its
protocol attribute includes the spoofing flag (an s in
parentheses).
Abbreviated interface name.
Physical link state of the interface:
UP—Link is up.
ADM—Link has been shut down administratively. To recover its
physical state, perform the undo shutdown command.
Protocol connection state of the interface, which can be UP,
DOWN, or UP(s).
Main IP address of the interface.
Description of the interface.
Cause of a DOWN physical link. If the port has been shut down
with the shutdown command, this field displays
Administratively. To restore the physical state of the interface,
use the undo shutdown command.
display interface null
Description
Use the display interface null command to display information about the null interface. Because Null 0
interface is the only null interface on a device, this command displays information about Null 0 interface,
even if you do not specify the 0 parameter:
If you do not specify the null parameter, this command displays information about all interfaces on
the device.
If you specify the null parameter, this command displays information about interface Null 0 with or
without the 0 parameter, because the device supports only one interface Null 0.
Related commands: interface null.
Syntax
display interface [ null ] [ brief [ down ] ] [ | { begin | exclude | include } regular-expression ]
display interface null 0 [ brief ] [ | { begin | exclude | include } regular-expression ]
View
Any view
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