Revision as of 09:42, 13 September 2019 edit 85.224.40.100 (talk) Corrected spelling error. ← Previous edit		Revision as of 02:47, 7 November 2019 edit undo 47.90.96.210 (talk) No edit summary Next edit →
Line 21: If a frame or ACK is lost during transmission then the frame is re-transmitted. This re-transmission process is known as ARQ (automatic repeat request). The problem with Stop-and -wait is that only one frame can be transmitted at a time, and that often leads to inefficient transmission, because until the sender receives the ACK it cannot transmit any new packet. During this time both the sender and the channel are unutilised. === Pros and cons of stop and wait ===

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