Method of determining whether to use preempt/resume or alternate protocol for data transmission
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United States of America Patent
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Aug 30, 1994
Grant Date -
N/A
app pub date -
Aug 7, 1992
filing date -
Aug 7, 1992
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method is disclosed for determining whether to use a preempt/resume protocol or an alternate protocol in transmitting data packets from a local system to a remote system. Each system informs the other whether it supports preempt/resume and provides the sizes of the largest low priority data packets it can send and receive. The local system always elects the alternate protocol unless both support preempt/resume. The local system then selects the lesser of (a) the largest low-priority data packet it can send and (b) the largest low-priority data packet the remote system can receive. Use of prompt/resume is initiated by the local system only where a packet of the selected size would be delayed in reaching the remote system by more than a predetermined interval.
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