Prioritization and preemption of data frames over a switching fabric
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United States of America Patent
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-
Dec 9, 2008
Grant Date -
N/A
app pub date -
Nov 6, 2002
filing date -
Oct 16, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Network switching and/or routing devices can use multiple priority data streams and queues to support prioritized serial transmission of data from line cards (or the like) through a fabric switch to other line cards (or the like). Preemption logic is used to insert within a data stream commands indicating a switch from one priority level data to another. Delimiter commands and combination switch/delimiter commands can also be used. Multiple crossbars are implemented in the fabric switch to support the various data stream priority levels.
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