Basic Computer Notions Networks

Next Point-to-point (mesh) Ring Ring (cont'd) Ring (cont'd) Bus Star Competing needs and solutions 8 of 32 Ethernet Asynchronous Transfer Mode (ATM) Real world Real world (cont'd) Real world (cont'd) Real world (cont'd) Real world (cont'd) Wireless Wireless (cont'd) Protocols Invisible computing GPS Medical applications RFID RFID (cont'd) Medical applications Medical applications (cont'd) Medical applications (cont'd) Medical applications (cont'd) Medical applications (cont'd) Medical applications (cont'd) Medical applications (cont'd) Medical applications (cont'd) Medical applications (cont'd)

Token ring

Messages circulate around the ring in tokens. A station wanting to send a message waits until it receives a token indicating that the network is free.

Token-ring networks don't provide the ring-type redundancy mentioned earlier because the token must circulate around the ring. The 'ring' is usually implemented physically as a star.

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R. Funnell
Last modified: Tue, 2007 Mar 20 17:56:43

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