FDDI is a network technology developed by the American National Standards Institute (ANSI). FDDI is an optical fiber-based token passing ring with a bit rate of 100 Mbps. It was designed to span long distances and, in most implementations, it acts as a campus-wide high-speed backbone. FDDI offers advanced features beyond Token Ring, such as the ability to self-heal a break in the ring and the use of guaranteed bandwidth.
Although not developed by the IEEE as part of the 802 standards, the FDDI specification is quite similar to the IEEE 802.3 and 802.5 specifications; it defines the MAC sublayer of the OSI Data Link Layer and the Physical Layer, and it uses the IEEE 802.2 LLC sublayer. Copper Data Distributed Interface (CDDI) is a version of ...
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