Time linked scheduling of cell-based traffic
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United States of America Patent
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Nov 5, 2002
Grant Date -
N/A
app pub date -
Sep 10, 1998
filing date -
Sep 10, 1998
priority date (Note) -
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Abstract
A node in a packet network such as an ATM network receives a plurality of traffic classes and outputs them to an output link. The invention relates to a technique of scheduling the traffic classes in a time linked fashion at the node based on the bandwidth allocated to each traffic class. Traffic scheduling based strictly on priority may not satisfy delay and loss guarantees of traffic classes when there are many classes with many different priority levels. The rate based scheduling in a time-linked fashion solves these problems by limiting the bandwidth to which each class is accessible. According to one embodiment, the invention uses timeslot values and a linked list of the traffic classes.
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