Packet switch and switching method for switching variable length packets
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United States of America Patent
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May 27, 2003
Issued Date -
N/A
app pub date -
Mar 30, 1999
filing date -
Apr 1, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A packet switch for switching variable length packets, wherein each of output port interfaces includes a buffer memory for storing transmission packets, a transmission priority controller for classifying, based on a predetermined algorithm, transmission packets passed from a packet switching unit into a plurality of queue groups to which individual bandwidths are assigned respectively, and queuing said transmission packets in said buffer memory so as to form a plurality of queues according to transmission priority in each of said queue groups, and a packet read-out controller for reading out said transmission packets from each of said queue groups in the buffer memory according to the order of transmission priority of the packets while guaranteeing the bandwidth assigned to the queue group.
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