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US 7,149,664 B1Granted
Method and apparatus for queue modeling
AssigneeNortel Networks Limited
InventorsVictor Firoiu, Marty Borden
Life of this patent
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AssigneeNortel Networks Limited
InventorsVictor Firoiu, Marty Borden
Estimating the term…
A method, apparatus, and computer program product for modeling dynamics of a queue are disclosed. A queue law function can be used to determine a control function for use in a congestion control module in a network for dropping packets. A queue law function may be determined based upon traffic conditions in the network. First a quantity that is representative of the link utilization between first and second nodes is determined. If the link is fully utilized, a quantity that is representative of an average round transmission trip time for data to be sent from the first node to the second node and an acknowledgment to be received by the first node is calculated. The queue law function which is dependent on a data drop probability based upon the link utilization, the buffer size, and the average round trip transmission time is determined. From this queue law function, parameters for defining a control function can be derived. These parameters include the minimum buffer size and the maximum expected queue size during normal operation for the node.
A method for operating a second, sending network node relative to a first, receiving network node, the receiving node being operable to receive data packets sent by the sending node via a plurality of flows, the method comprising:
A method for modeling dynamics of a queue in a first, sending node having a buffer in order to determine a steady-state operating point of the first node relative to a second, receiving node, the receiving node being operable to receive data packets sent by the sending node via a plurality of flows, the method comprising:
Dependencies are inferred from the claim text.