F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices Network Management Command Reference-6PW100

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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.
|: Filters command output by specifying a regular expression. For more information about regular
expressions, see Getting Started 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.
Usage guidelines
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 null interface.
Examples
# Display detailed information about interface Null 0.
<Sysname> display interface null 0
NULL0 current state :UP
Line protocol current state :UP (spoofing)
Description : NULL0 Interface
The Maximum Transmit Unit is 1500
Internet protocol processing : disabled
Physical is NULL DEV
Last clearing of counters: Never
Last 300 seconds input: 0 bytes/sec, 0 bits/sec, 0 packets/sec
Last 300 seconds output: 0 bytes/sec, 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 drops
0 packets output, 0 bytes, 0 drops
# Display brief information about interface Null 0.
<Sysname> display interface null 0 brief
The brief information of interface(s) under route mode:
Link: ADM - administratively down; Stby - standby
Protocol: (s) - spoofing
Interface Link Protocol Main IP Description
NULL0 UP UP(s) --
See Table 8 for the display interface null command output.
Related commands
interface null