Token Ring Networks
A token ring network is a physically star-wired local area network that interconnects various devices such as personal computers and workstations into a logical ring configuration. The cabling system consists of wiring concentrators, connectors, and end stations.
The Sun token ring protocol conforms to the IEEE 802.5-1988 standard. Token ring refers to the media access control (MAC) portion of the link layer (DLC) as well as the entire physical layer (PHY). Access to the ring is controlled by a bit pattern, called a token, that circulates from station to station around the ring. Any station can use the ring. Capturing the token means that a station changes the token bit pattern so that it is no longer that of a token but that ...
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