Token ring method is a communication protocol used in Local area networks (LAN's)
In ring topology, the data is transmitted based on token passing
It is also called token pass method
A token is an empty frame that circulates around the network
In token ring method, a token is circulated throughout the network from one node to the other
How data is transmitted?
If node A has to transmit the data, it waits for the frame
When the frame reaches node A, the node holds the frame and attach the data to be transmitted along with the destination address and transmits the frame
The frame circulates the ring until it reaches the destination
Let node C be the destination, when the frame reaches destination, the destination node (node C) copies the data from the frame and sends acknowledgement to the sender (node A)
When the frame reaches node A with the acknowledgement, node A removes all the data from the frame and retransmits the empty frame into the network
This is how the token ring method works
In this method, only one node can transmit the data at a time. So there is no possibility for collision.
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