46
Field Description
and the number of dropped packets.
# Display brief information about all loopback interfaces.
<Sysname> display interface loopback brief
Brief information on interfaces in route mode:
Link: ADM - administratively down; Stby - standby
Protocol: (s) - spoofing
Interface Link Protocol Primary IP Description
Loop1 UP UP(s) -- aaaaaaaaaaaaaaaaaaaaaaaaaaa
# Display brief information about all existing loopback interfaces, including the complete description
of each loopback interface.
<Sysname> display interface loopback brief description
Brief information on interfaces in route mode:
Link: ADM - administratively down; Stby - standby
Protocol: (s) - spoofing
Interface Link Protocol Primary IP Description
Loop1 UP UP(s) -- aaaaaaaaaaaaaaaaaaaaaaaaaaaaa
Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
# Display information about all loopback interfaces in down state and the causes.
<Sysname> display interface loopback brief down
Brief information on interfaces in route mode:
Link: ADM - administratively down; Stby - standby
Interface Link Cause
Loop1 ADM Administratively
Table 12 Command output
Field Description
Brief information on interfaces in
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.
Protocol: (s) - spoofing
Explains the
Protocol
field value.
(s)
—Represents spoofing. If the data link layer protocol of an interface
is 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.
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