The FDDI Protocol (2001)

 

 

One of the earliest types of local area networks was the token ring. As the name implies, the nodes are connected in a ring topology with point-to-point links. A special bit pattern called a token continually circles around the ring. Whenever a node wishes to send a message, it must wait for the token to get there. It then temporarily removes the token from the ring, sends its message, and then places the token back on the ring so that some other node may send. The Fiber Distributed Data Interface (FDDI) is a newer type of token ring. It is fast, 100 Mbps, compared to the 4 Mbps of the IBM token ring and the original 10 Mbps rate for Ethernet. This speed was leapfrogged by Fast Ethernet at 100 Mbps, and now by Gigabit Ethernet at 1000 Mbps. [via]
http://heather.cs.ucdavis.edu/~matloff/NewFDD...

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The FDDI Protocol

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