HP MSR2000/3000/4000 Router Series Interface Command Reference

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Field Description
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 bri
Use interface bri to enter BRI interface view.
Syntax
interface bri interface-number
Views
System view
Predefined user roles
network-admin
Parameters
interface-number: Specifies a BRI interface by its number.
Examples
# Enter view of interface BRI 1/0.
<Sysname> system-view
[Sysname] interface bri 1/0
[Sysname-Bri1/0]
loopback
Use loopback to set the B1, B2, or both channels on the ISDN BRI interface in external loopback. This
allows data from a line to be sent back to the line.
Use undo loopback to restore the default.
Syntax
loopback { b1 | b2 | both }
undo loopback
Default
Loopback is disabled on ISDN BRI interfaces.
Views
ISDN BRI interface view
Predefined user roles
network-admin