Method for controlling data flow
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United States of America Patent
Stats
-
Jun 13, 1989
Grant Date -
N/A
app pub date -
Jul 22, 1988
filing date -
Jul 24, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A data packet transmitted from a source data terminal is received by a destination data terminal and stored into a receive buffer from which it is withdrawn at a rate which may differ from the rate of transmission of packets from the source terminal. The destination terminal returns an acknowledgment packet in response to each data packet being withdrawn from the receive buffer. The acknowledging packet includes a flow control variable which is incremented by a unit value in response to the data packet being withdrawn from the receive buffer. The source terminal transmits one or more data packets having sequence numbers the largest of which is determined by a maximum number of outstanding data packets awaiting receipt of the acknowledging packet by the source data terminal and the flow control variable contained in the acknowledging packet.
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