Switching system for transferring broadcast packet held in broadcast buffer received from input port to output ports according to the state of each output port
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United States of America Patent
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-
Oct 20, 1998
Grant Date -
N/A
app pub date -
Mar 18, 1992
filing date -
Mar 20, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a method of transferring packets in a network for a parallel processor system handling a one-to-one transfer packet to be transferred from a processor to another processor and a broadcast packet to be transferred from a processor to a plurality of other processors, a transfer request of a broadcast packet is preferentially selected and a check is made to detect whether or not a plurality of processors specified as receivers are in a state in which the packet can be received. The broadcast packet is transferred to the processors found to be in the state in which the packet can be received. The packet transfer is delayed for the other processors in a state in which the packet cannot be received. Namely, only when the state of the processors is changed to the state in which the packet can be received, the broadcast packet is transferred thereto.
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