Pipeline processing type shaping apparatus and its method
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United States of America Patent
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-
Dec 13, 2005
Grant Date -
Dec 6, 2001
app pub date -
May 25, 2001
filing date -
May 31, 2000
priority date (Note) -
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Abstract
A pipeline processing type shaping apparatus and method in which strict shaping processing can also be implemented for a connection at various speed by adding a simplified circuit configuration. A cache portion is provided that links with the processing of a pipeline processing portion, and this cache portion manages flow information of a packet that is being processed in the pipeline processing portion. When there is a packet that belongs to the same flow, the cache portion transfers a parameter to the pipeline processing portion assuming a virtual packet in which relevant packets are all connected. The pipeline processing portion executes pipeline processing based on this virtual parameter. Consequently, also for a flow at an optional peak-rate speed (reciprocal of the input packet interval that belongs to the same flow) and in any high-speed transmission path interface, a predetermined scheduling time by shaping can always be calculated in real time.
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