Duplex - HP MSR series Command Reference Manual

Table 6 Causes for the physical state of an interface to be DOWN
Field
Not connected
Administratively
Link-Aggregation interface
down
OAM connection failure
DLDP connection failure
Loopback detection-protected
BPDU-protected
Monitor-Link uplink 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 | half }
undo duplex
Default
An Ethernet interface operates in auto negotiation mode.
Views
Ethernet interface view
Default command level
2: System level
Parameters
auto: Sets the interface to operate in auto negotiation mode.
full: Sets the interface to operate in full duplex mode.
half: Sets the interface to operate in half-duplex mode. This keyword is not available for the fiber combo
ports.
Examples
# Configure interface Ethernet 1/1 to operate in full duplex mode.
<Sysname> system-view
Description
No physical connection exists (possibly because the network cable is
disconnected or faulty).
The port was shut down with the shutdown command. To restore the physical
state of the interface, use the undo shutdown command.
The aggregate interface corresponding to the aggregation group to which the
interface belongs was shut down with the shutdown command.
The OAM connection failed (possibly because the connection failed to be
established or the connection is disconnected).
The DLDP connection failed (possibly because the connection failed to be
established or the connection is disconnected).
The interface is shut down because a loop was detected on it.
The interface is shut down by the BPDU guard function.
The uplink of the monitor link group to which the interface belongs is down.
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