Each bank of L3 being connected to the ring bus twice allows the network to have a performance of a bidirectional ring while still being unidirectional.
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In this unidirectional ring network, every client is connected to the link twice, which means it can determine which direction to send the message out from depending on where the receiver is. Thus, it gains the performance of a bidirectional ring network while still maintaining the simplicity of implementing a unidirectional ring network.
Each bank of L3 being connected to the ring bus twice allows the network to have a performance of a bidirectional ring while still being unidirectional.
In this unidirectional ring network, every client is connected to the link twice, which means it can determine which direction to send the message out from depending on where the receiver is. Thus, it gains the performance of a bidirectional ring network while still maintaining the simplicity of implementing a unidirectional ring network.