The desired status of UDLD on a port.
If the associated hpicfUdldStatsPortCurrentState object has a
value of 'offline(1)', then the port or udld is administratively
disabled.
If the associated hpicfUdldStatsPortCurrentState object has a
value of 'failure(2)', then the port and udld are administratively
enabled, but udld packets are not being received successfully.
Link may or may not be present.
If the associated hpicfUdldStatsPortCurrentState object has a
value of 'up(3)', then udld is enabled and udld packets
are being received successfully in both directions.