Question

| Token bus access countrol-এর Operation এর বর্ণনা দাও। ​

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Token bus is a network implementing a Token Ring protocol over a virtual ring on a coaxial cable.[1] A token is passed around the network nodes and only the node possessing the token may transmit. If a node doesn't have anything to send, the token is passed on to the next node on the virtual ring. Each node must know the address of its neighbour in the ring, so a special protocol is needed to notify the other nodes of connections to, and disconnections from, the ring.

Due to difficulties handling device failures and adding new stations to a network,[vague] Token Ring gained a reputation[who?] for being unreliable and difficult to upgrade. Bus networks, such as Ethernet, had a more flexible and reliable physical architecture,[vague][who?] but Ethernet's access protocol could not absolutely guarantee a maximum time any station would have to wait to access the network, so was thought[who?] to be unsuitable for manufacturing automation applications. The Token bus protocol was created to combine the benefits of a physical bus network with the deterministic access protocol of a Token Ring network

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