window technique

The window technique is a method of acknowledgement-oriented flow control. In this transmission, the sender is given a window size in which it can send data. The method is also called credit method, because the receiving station grants the sending station a credit over a certain number (window size) of data blocks, which it may send unacknowledged. The advantage of this method is the higher data throughput compared to the single block method (stop-and-wait). The windowing technique is used in various transmission protocols with different algorithms. In the Transmission Control Protocol(TCP), the window size - it is the 16-bit long data field Window in the TCP header - is used to control the flow between sender and receiver. Data field for the window size in the TCP headerThe flow control used in the TCP protocol is called Sliding Window and is based on a windowing technique in which the frames are transmitted one after the other with consecutive numbering without waiting for the positive acknowledgement(ACK), as is the case with stop-and-wait. To this end, the window mechanism communicates how large the remaining available buffer is in the receiving node. By varying the window size, the number of data packets transmitted without receive confirmation can be increased. If packet loss occurs due to congestion, then the congestion control

Englisch:	window technique
Updated at:	22.11.2016
#Words:	219
Links:	method, flow control, indium (In), transmission, data
Translations:	DE
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