HP MSR2000/3000/4000 Router Series Interface Command Reference

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Field Description
Protocol Protocol connection state of the interface: UP or DOWN.
Main IP Main IP address of the interface.
Description Description of the interface.
Cause
Cause of a DOWN physical link. If the port has been shut down
with the shutdown command, this field displays Administratively.
To restore the physical state of the interface, use the undo
shutdown command. Not connected means no physical
connection (no cable is available or the cable is faulty).
Related commands
reset counters interface
interface analogmodem
Use interface analogmodem to enter AM interface view.
Syntax
interface analogmodem interface-number
Views
System view
Predefined user roles
network-admin
Parameters
interface-number: Specifies an AM interface by its number.
Examples
# Enter view of AM interface Analogmodem 6/3/0.
<Sysname> system-view
[Sysname] interface analogmodem 6/3/0
[Sysname-Analogmodem6/3/0]
loopback
Use loopback to enable loopback on the serial interface.
Use undo loopback to restore the default.
Syntax
loopback
undo loopback
Default
Loopback is disabled.