Dynamic queue allocation and de-allocation
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United States of America Patent
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Mar 4, 2008
Grant Date -
Apr 24, 2003
app pub date -
Oct 4, 2002
filing date -
Oct 10, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A dynamic queue allocation and de-allocation mechanism for managing traffic flowing through a switching node. If a packet matches conditions of a particular QoS policy rule, a determination is made as to whether a queue associated with the matched QoS policy rule exists on an egress port that is to forward the packet. If such a queue does not exist, a determination is made as to whether enough resources are available for dynamically creating the queue according to the QoS action parameters of the matched QoS policy rule. If the new queue may not be created because of resource limitation, queues of lower priority existing on the port are reclaimed and their resources reassigned to the new queue.
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