HP 3100 v2 Series Command Reference Manual page 48

|: 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 loopback to display information about a loopback interface.
•
If you do not specify the loopback keyword, this command displays information about all
interfaces on the device.
•
The device supports only one loopback interface, loopback 0, and therefore this command
displays information about loopback 0 whether you specify loopback or loopback 0.
Related commands: interface loopback.
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
Port priority: 0
Last clearing of counters:
Last 300 seconds input:
Last 300 seconds output:
0 packets input, 0 bytes, 0 drops
0 packets output, 0 bytes, 0 drops
# Display brief information about interface loopback 0.
<Sysname> display interface loopback 0 brief
The brief information of interface(s) under route mode:
Link: ADM - administratively down; Stby - standby
Protocol: (s) - spoofing
Interface
Loop0
Table 10 Command output
Field
current state
Line protocol current state
Description
The Maximum Transmit Unit
Never
0 bytes/sec, 0 bits/sec, 0 packets/sec
0 bytes/sec, 0 bits/sec, 0 packets/sec
Link Protocol Main IP
UP UP(s) --
Description
Physical state (up or administratively down) of the interface.
State of the data link layer protocol: up (spoofing). Spoofing
refers to the spoofing attribute of the interface. When the
network layer protocol state of the interface is displayed as up,
the corresponding link may not exist, or the corresponding link is
non-permanent and established on demand.
Description string of the interface.
Maximum transmission unit (MTU) of the interface.
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Description