Fiber Distributed Data Interface

(F-D-D-I)

A network specification used for high-speed (100Mbps) fiber optic networks with a dual-attached, counter-rotating token ring topology. The "dual-attached" term is used because the center of an FDDI network generally consists of routers and cencentrators connected to two rings. The comptuers connected to these devices are then single-connected.

More Information

• FDDI Tutorial