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

Table Of Contents
30
Related commands
display interface
display interface loopback
Use display interface loopback to display information about a loopback interface.
Syntax
display interface [ loopback ] [ brief [ down ] ] [ | { begin | exclude | include } regular-expression ]
display interface loopback interface-number [ brief ] [ | { begin | exclude | include } regular-expression ]
Views
Any view
Default command level
1: Monitor level
Parameters
interface-number: Specifies a loopback interface by its number, which can be the number of any existing
loopback interface. With this argument, this command displays information about a specified loopback
interface.
brief: Displays brief interface information. If you do not specify this keyword, the command displays
detailed interface information.
down: Displays information about interfaces in DOWN state and the causes. If you do not specify this
keyword, the 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 loopback keyword, this command displays information about all interfaces on
the device.
If you specify the loopback keyword without the interface-number argument, this command displays
information about all existing loopback interfaces.
Examples
# Display detailed information about interface Loopback 0.
<Sysname> display interface loopback 0
LoopBack0 current state: UP
Line protocol current state: UP (spoofing)
Description: LoopBack0 Interface
The Maximum Transmit Unit is 1536
Internet protocol processing : disabled
Physical is Loopback