Question

Explain pipelined reliable data transfer protocol (sliding window protocol)

Answer 1

Sliding window protocol. A sliding window protocol is a feature of packet-based data transmission protocols. Sliding window protocols are used where reliable in-order delivery of packets is required, such as in the Data Link Layer (OSI model) as well as in the Transmission Control Protocol (TCP).Since the many in-transit sender-to-receiver packets can be visualized as filling a pipeline, this technique is known as pipelining. Pipelining has several consequences for reliable data transfer protocols: ... Minimally, the sender will have to buffer packets that have been transmitted, but not yet acknowledged.