Enables a token ring station entity which manages a Token Ring
    controller.

    enable [node node-id] token ring station station-name
           [mode normal-or-loopback]
           [transparent source routing enabled]

    The Mode argument is optional.  It specifies the mode this
    station will be enabled to.  It can be either normal (the default)
    or loopback.

    The Transparent Source Routing argument is also optional.  It
    indicates whether the transparent source routing functionality will
    be enabled.  The default is enabled.  This value cannot be disabled.