13
Field Description
Link
Physical link state of the interface:
•
UP
—The link is up.
•
DOWN
—The link is physically down.
•
ADM
—The link has been administratively shut down. To recover its
physical state, perform the
undo shutdown
command.
•
Stby
—The interface is a standby interface.
Protocol Protocol
connection
state of the interface, which can be UP, DOWN, or UP(s).
The brief information of
interface(s) under bridge
mode:
Brief information about Layer 2 interfaces.
Speed or Duplex: (a)/A -
auto; H - half; F - full
If the speed of an interface is automatically negotiated, its speed attribute
includes the auto negotiation flag, letter a in parentheses.
If the duplex mode of an interface is automatically negotiated, its duplex mode
attribute includes the following options:
•
(a)/A
—Auto negotiation
•
H
—Half negotiation
•
F
—Full negotiation
Type: A - access; T -
trunk; H – hybrid
Link type options for Ethernet interfaces.
Speed
Interface rate, in bps.
Duplex
Duplex mode of the interface:
•
A
—Auto-negotiation
•
F
—Full duplex
•
F(a)
—Auto-negotiated full duplex
•
H
—Half duplex
•
H(a)
—Auto-negotiated half duplex
Type
Link type of the interface:
•
A
—Access
•
H
—Hybrid
•
T
—Trunk
PVID
Port VLAN ID of the interface.
Cause
Causes for the physical state of an interface to be DOWN. For more
information, see
Table 6 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
OAM connection fails (possibly because the connection fails to be
established or the connection is disconnected).
DLDP connection failure
DLDP connection fails (possibly because the connection fails to be
established or the connection is disconnected).