)Abbreviation of Fiber Distributed Data Interface, a set of ANSI
protocols for sending digital data over fiber optic cable. FDDI
networks are token-passing networks, and support data rates of
up to 100 Mbps (100 million bits) per second. FDDI networks are
typically used as backbones for wide-area networks. An extension
to FDDI, called FDDI-2, supports the transmission of voice and
video information as well as data. Another variation of FDDI,
called FDDI Full Duplex Technology (FFDT) uses the same network
infrastructure but can potentially support data rates up to 200
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