Display Interface Null - HP 3100 v2 Series Command Reference Manual

Field
Description
Cause
NOTE:
The switch does not support collecting statistics about average input or output rate of loopback
interfaces. These fields display 0.

display interface null

Syntax
display interface [ null ] [ brief [ down | description ] ] [ | { begin | exclude | include }
regular-expression ]
display interface null 0 [ brief [ description ] ] [ | { begin | exclude | include } regular-expression ]
View
Any view
Default level
1: Monitor level
Parameters
0: Specifies interface Null 0. The null interface number is fixed at 0, because the device has only one
null interface.
brief: Displays brief interface information. If you do not specify this keyword, this command displays
detailed interface information.
down: Displays information about interfaces in down state and the causes. If you do not specify this
keyword, this command displays information about interfaces in all states.
description: Displays complete interface descriptions. If you do not specify this keyword, the
command displays only the first 27 characters of interface descriptions.
|: Filters command output by specifying a regular expression. For more information about regular
expressions, see Fundamentals Configuration Guide.
begin: Displays the first line that matches the specified regular expression and all lines that follow.
exclude: Displays all lines that do not match the specified regular expression.
include: Displays all lines that match the specified regular expression.
regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.
Description
Use display interface null 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 keyword.
•
If you do not specify the null keyword, this command displays information about all interfaces
on the device.
•
If you specify the null keyword, this command displays information about interface Null 0 with or
without the 0 keyword, because the device supports only one interface Null 0.
Description
Description of the interface.
The 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.
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