Crossbar switch utilizing broadcast buffer and associated broadcast buffer management unit
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United States of America Patent
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-
Jun 3, 2003
Grant Date -
N/A
app pub date -
May 26, 1999
filing date -
May 26, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A crossbar switching system utilizing broadcast buffering and broadcast buffer management to improve the transmission of variable length broadcast packets through the switch. Transmission of unicast traffic is halted and a plurality of broadcast packets are transmitted consecutively. Once the broadcast packets have finished transmission, unicast packet transmission resumes. Improved performance is achieved by consecutively transmitting many broadcast packets at a time, thus reducing the lengthy time waiting overhead typically associated with stopping unicast transmission and transmitting a single broadcast packet. A broadcast buffer or queue is placed on each interface card for storing broadcast packets during unicast transmission.
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