Interface Loopback - H3C S7500E Series Command Reference Manual

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include: Displays all lines that match the specified regular expression.
regular-expression: Specifies a regular expression, which is a case sensitive string of 1 to 256
characters.
Description
Use the display interface null command to display information about the null interface.
If you do not specify the null keyword, this command displays information about all interfaces.
Even if you do not specify the 0 keyword, this command displays information about interface Null 0
because interface Null 0 is the only null interface on a device.
Related commands: interface null.
Examples
# Display information about null 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 Null0.
<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
NULL0
See Table 6-1 for the display interface null command output description.
The average input/output rate or input/output packets of interface Null 0 are displayed as "0" in the
display interface null command output because the S7500E series Ethernet switches do not count
these fields.

interface loopback

Syntax
interface loopback interface-number
Link Protocol Main IP
UP UP(s) --
Description
6-6