11
Field Description
Type
Link type of the interface:
•
A
—Access.
•
H
—Hybrid.
•
T
—Trunk.
PVID
Port VLAN ID.
Table 4
Causes for the physical state of an interface to be DOWN
Field Description
Not connected
No physical connection exists (possibly because the network cable is
disconnected or faulty).
Administratively
The port was shut down with the
shutdown
command. To restore the physical
state of the interface, use the
undo shutdown
command.
Link-Aggregation interface
down
The aggregate interface corresponding to the aggregation group to which the
interface belongs was shut down with the
shutdown
command.
OAM connection failure
The OAM connection failed (possibly because the connection failed to be
established or the connection is disconnected).
DLDP connection failure
The DLDP connection failed (possibly because the connection failed to be
established or the connection is disconnected).
Loopback detection-protected The interface is shut down because a loop was detected on it.
BPDU-protected
The interface is shut down by the BPDU guard function.
Monitor-Link uplink down
The uplink of the monitor link group to which the interface belongs is down.
Related commands
interface
duplex
Use
duplex
to set the duplex mode for an Ethernet interface.
Use
undo duplex
to restore the default duplex mode of the Ethernet interface.
Syntax
duplex
{
auto
|
full
}
undo duplex
Default
Ethernet interfaces operate in autonegotiation mode.
Views
Ethernet interface view
Default command level
2: System level
