"FDDI Large Packet Support"

    If an FDDI-type circuit has been found on the system, you have the
    option of enabling FDDI large packet support.  FDDI large packet
    support allows you to fully utilize the bandwidth of FDDI.

    If you choose not to enable FDDI large packet support on the system,
    the FDDI circuit will use the bandwidth of CSMA-CD instead.

    Note that a Phase V router on the LAN (preferably on the FDDI) is
    required in order to enable the FDDI large packet support.