Enables an fddi station phy port entity which provides a
    management view of the fddi station phy port and the fddi
    pmd.  Port-index is an integer.

    enable  [node node-id] fddi station station-name -
           phy port port-index [mode mode-type]

    Mode is an optional argument whose value can be either
    Normal (which is the default) or Internal Loopback.

    OpenVMS Example:

    enable fddi station fddi-0 phy port 0

    Tru64 UNIX Example:

    enable fddi station fddi-1 phy port 1