Chapter 7. FDDI
The American National Standards Institute (ANSI) introduced Fiber Distributed Data Interface (FDDI) LANs in the mid-1980s as ANSI standard X3T9.5. FDDI LANs operate in a similar fashion to Token Ring LAN implementations.
FDDI LANs are a popular choice for LAN backbones for the following reasons:
They operate at high speeds—. Data is transmitted around a FDDI ring at 100 Mbps.
They are reliable—. Servers, workstations, or other network devices can be connected to dual rings. After a ring failure, a usable path on both rings is automatically available.
They support a large network diameter—. Dual fiber-optic rings can have a network diameter of up to 100 kilometers (km) each.
Fiber-Optic Transmission Modes
In discussions of fiber-optic ...
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