Creates an instance of a CSMA-CD station, using the specified
    communications device.  The Communication Port argument is
    required.

    create  [node node-id] csma-cd station station-name -
            communication port port-id

    Communication Port

    The Communication Port is the system device name assigned to
    this station.

    On Tru64 UNIX the port-id must be in the format ddn, where dd
    is the device name prefix and n is the device number.

    On OpenVMS the port-id must be in the format ddc, where dd is
    the device name prefix and c is the controller letter.

    Device Type  Tru64 UNIX 	 OpenVMS

    DEBNA                           et
    DEBNI                           et
    DELQA                           xq
    DELUA                           xe
    DEMNA           xna             ex
    DESVA                           es
    DEUNA                           xe
    DE422           ln              er
    KFE-32                          ef
    LANCE           ln
    PMAD            ln              ec
    SGEC                            ez
    TGEC            te
    TULIP           tu              ew

    Example:

    create csma-cd station csmacd-0 communication port EWA