Parallel data link layer controllers in a network switching device
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United States of America Patent
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Sep 28, 2010
Grant Date -
Sep 15, 2005
app pub date -
Dec 31, 2003
filing date -
Dec 31, 2003
priority date (Note) -
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Abstract
The present invention features a data link layer processor for performing VLAN tagging operations, policing, shaping, and statistics acquisition integrally with one or more media access controllers (MACs). When a plurality of data link layer processors are operated in parallel in a switching device, the computational burden carried by the route engine is significantly reduced. Moreover, the data link layer processor in its several embodiments may be used to introduce various forms of pre-processing and post-processing into network switching systems that employ route engines that do not posses such functionality.
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