Chapter 9. Fiber Distributed Data Interface
Objectives
Provide background information about FDDI technology.
Explain how FDDI works.
Describe the differences between FDDI and Copper Distributed Data Interface (CDDI).
Describe how CDDI works.
Introduction
The Fiber Distributed Data Interface (FDDI) specifies a 100-Mbps token-passing, dual-ring LAN using fiber-optic cable. FDDI is frequently used as high-speed backbone technology because of its support for high bandwidth and greater distances than copper. It should be noted that relatively recently, a related copper specification, called Copper Distributed Data Interface (CDDI), has emerged to provide 100-Mbps service over copper. CDDI is the implementation of FDDI protocols over twisted-pair copper wire. ...
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