Interface Null - HP 6125XLG Command Reference Manual

Default
No loopback interface exists.
Views
System view
Predefined user roles
network-admin
Parameters
interface-number: Specifies a loopback interface by its number.. The interface-number argument is in the
range of 0 to 127.
Usage guidelines
The physical layer state and link layer protocols of a loopback interface are always up unless the
loopback interface is manually shut down. You can establish a connection to a loopback interface to
prevent the connection from being affected by the physical state of the interface and to improve the
reliability of the connection. For example, you can configure a loopback interface as the source interface
for establishing an FTP connection or use the loopback interface address as the Router ID in BGP.
Examples
# Create interface loopback 1.
<Sysname> system-view
[Sysname] interface loopback 1
[Sysname-LoopBack1]

interface null

Use interface null to enter null interface view.
Syntax
interface null 0
Default
A device has only one null interface (Null 0), which cannot be created or deleted.
Views
System view
Predefined user roles
network-admin
Parameters
0: Specifies interface Null 0. The null interface number is fixed at 0.
Examples
# Enter Null 0 interface view.
<Sysname> system-view
[Sysname] interface null 0
[Sysname-NULL0]
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