Method and apparatus for selectively discarding packets for blocked output queues in the network switch
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United States of America Patent
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Sep 14, 1999
Grant Date -
N/A
app pub date -
Dec 18, 1997
filing date -
Feb 14, 1997
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An apparatus and method of controlling the transmission of copies of a frame of data from a multiport device, such as a multiport network switch, determines which ones of the ports are designated to transmit a copy of a multicopy frame received at the switch. The switch then determines which of these designated ports are not available to transmit a copy of the frame. The copies are transmitted from those designated ports that are available to transmit a copy of the multicopy frame, while the copies are discarded for those designated ports that are not available to transmit a copy of that multicopy frame.
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