A type of CAM
. Token passing uses a token
, or series of bits
, to grant a device permission to transmit over the network
. Whichever device has the token can put data into the network. When its transmission is complete, the device passes the token along to the next device in the topology
. System rules in the protocol specifications mandate how long a device may keep the token, how long it can transmit for and how to generate a new token if there isn't one circulating. Also see contention
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