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US 5,511,066 AGranted
Policing method for policing an aggregate cell stream of first and second priority cells
AssigneeAlcatel
InventorsJohan H. Witters, Johannes A. M. Van Tetering, Guido H. M. Petit
Life of this patent
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Abstract
A policing method is proposed policing an aggregate ATM cell stream (IN) consisting of both high and low priority cells. The method consists in policing the aggregated stream as a whole whilst also policing separately a substream formed by the high priority cells as prescribed by ITU-TS recommendation I.371.
Claims6
Policing method for policing an aggregate input cell stream (IN) of at least first priority cells and second priority cells, said method comprising the steps of:
- a first policing step (PP1) using at least one first predicted arrival time parameter for checking if said first priority cells are satisfactory, and if satisfactory, then inserting said one of said first prioritycells into an output cell stream (OUT) and updating said first and second predicted arrival time parameters, and
- a second policing step (PP2) using at least one second predicted arrival time parameter for checking if said first priority cells and said second priority cells are satisfactory, and if satisfactory, then inserting said one of said second priority cells in said output cell steam (OUT) and updating said second predicted arrival time parameter.
Dependencies are inferred from the claim text.