R0106-HP MSR Router Series Interface Command Reference(V7)

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<Sysname> display interface loopback brief down
Brief information on interface(s) under route mode:
Link: ADM - administratively down; Stby - standby
Interface Link Cause
Loop1 ADM Administratively
Table 37 Command output
Field Description
Brief information on interface(s)
under route mode:
Brief information about loopback interfaces.
Link: ADM - administratively down;
Stby - standby
Explains the Link field values:
• ADM—The interface has been shut down by the network
administrator. To recover its physical layer state, run the undo
shutdown command.
• Stby—The interface is a standby interface. To view the primary
interface information, run the display interface-backup state
command.
Protocol: (s) - spoofing
Explains the Protocol field value.
(s) represents spoofing. If the data link layer protocol of an interface up,
but the link is an on-demand link or is not present, the Protocol field
displays UP(s). This attribute is typical of interface Null 0, Inloopback 0,
and loopback interfaces.
Interface Interface name.
Link
Physical layer state of the interface:
• UP—The interface is up.
• DOWN—The interface is physically down.
• ADM—The interface has been administratively shut down. To recover
its physical state, run the undo shutdown command.
• Stby—The interface is a standby interface.
Protocol Data link layer protocol state of the interface.
Description
Interface description configured by using the description command. If the
description keyword is not specified in the display interface brief
command, the Description field allows a maximum of 27 characters. If
the description keyword is specified in the display interface brief
command, the field displays the full interface description.
Cause
Cause of the interface down event. If the interface has been shut down by
using the shutdown command, this field displays Administratively. To
restore the physical state of the interface, execute the undo shutdown
command.
Related commands
• interface loopback
• reset counters interface loopback
display interface null
Use display interface null to display information about the null interface.