293
Link: ADM - administratively down; Stby - standby
Protocol: (s) - spoofing
Interface Link Protocol Main IP Description
Tun1 UP UP 1.1.1.1 aaaaaaaaaaaaaaaaaaaaaaaaaaaaa
Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
# Display information about interfaces in the physical state of DOWN and the causes.
<Sysname> display interface tunnel brief down
Brief information on interface(s) under route mode:
Link: ADM - administratively down; Stby - standby
Interface Link Cause
Tun0 DOWN Not connected
Tun1 DOWN Not connected
Table 71 Command output
Brief information of
interface(s) under route mode
Brief information about Layer 3 interfaces.
Link: ADM - administratively
down; Stby - standby
Link status:
• ADM—
The interface has been administratively shut down. To recover
its physical state, use the undo shutdown command.
•
—The interface is a backup interface.
Protocol: (s) - spoofing
(s)
indicates that the data link layer protocol state is UP, but the link is
temporarily set up on demand or does not exist. This attribute is available
for null interfaces and loopback interfaces.
Interface Abbreviated interface name.
Link
Physical link state of the interface:
• UP—The link is physically up.
• DOWN—The link is physically down.
• ADM—The link has been administratively shut down. To bring it up,
use the undo shutdown command.
• Stby—The interface is a backup interface.
Protocol
Data link layer protocol state of the interface:
• UP—The data link protocol state of the interface is up.
• UP (spoofing)—The link protocol state of the interface is up, but the
link is temporarily set up on demand or does not exist. This attribute is
available for null interfaces and loopback interfaces.
Main IP Primary IP address of the interface.
Description Description of the interface.
Cause
Causes for the physical state of DOWN:
• Administratively—The link has been shut down by using the
shutdown command. To restore its physical state, use the undo
shutdown command.
•
—The tunnel is not established.
Related commands
destination
interface tunnel
source