H3C S7500E Series

6-7
undo interface loopback interface-number
View
System view
Default Level
2: System level
Parameters
interface-number: Loopback interface number, ranging from 0 to 1023.
Description
Use the interface loopback command to create a loopback interface or enter loopback interface view.
Use the undo interface loopback command to remove a loopback interface.
Related commands: display interface loopback.
Examples
# Create interface loopback 2.
<Sysname> system-view
[Sysname] interface loopback 2
[Sysname-LoopBack2]
interface null
Syntax
interface null 0
View
System view
Default Level
2: System level
Parameters
0: Specifies interface Null 0. The null interface number is fixed to 0.
Description
Use the interface null command to enter null interface view.
A device has only one null interface, interface Null 0. Interface Null 0 is always up. You cannot remove
or shut down it.
Related commands: display interface null.
Examples
# Enter Null 0 interface view.
<Sysname> system-view
[Sysname] interface null 0
[Sysname-NULL0]