/FULL_DUPLEX
       /NOFULL_DUPLEX (default)

    Enables full-duplex operation of a LAN device. Before full-duplex
    operation results from the use of this qualifier, additional
    device or network hardware setup may be required. Some devices
    may be enabled for full-duplex operation by default. Some devices
    may not allow the setting to be changed.

    The /NOFULL_DUPLEX qualifier disables full-duplex operation.