TCP Error Control by Retransmission
This video explains how TCP error control mechanism works with retransmission of segment. Error control in TCP is achieved by checksum, acknowledgment, and time-out. First it shows how ACK delaying timer works in normal operation. Then we understand how TCP deals with the lost and out of order segments using Retransmission Time-Out (RTO) timer. Video also explains how TCP handles delayed and duplicate segment and how transmission control protocol (TCP) solved problem of lost acknowledgement.
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