What is Stop and Wait ARQ Protocol? | In two mins
You can learn about what is Stop and wait ARQ in two minutes.
Stop-and-Wait ARQ operates at Transport layer in TCP/IP. Sender transmits one frame (packet), then stops and waits for an acknowledgment (ACK).
Stop-and-Wait ARQ = one-frame(packet)-at-a-time
If the packet is lost, there will be no ACK from the receiver side, there will be a timer, if the timer expires then transmitter retransmit the packet again. Moreover, for the case when the packt has been received successfully, but the ACK is lost, we follow the same, i.e., if the timer expires and no ACK, the trasnmitter retransmit the packet.
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