Methods and systems for dynamic routing in a switched comunication network

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United States of America Patent

PATENT NO 5615254
SERIAL NO

08416255

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Abstract

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Methods and systems of traffic routing in a circuit switched communication network having a plurality of switches and a plurality of trunk groups connecting the switches are disclosed. The methods include a step of determining a set of alternate routing paths for each of a plurality of ordered pairs of the switches, wherein the number of alternate routing paths through each of the trunk groups is constrained to be less than a corresponding first predetermined threshold. In one embodiment, the alternate routing paths are determined by computing a solution to a predetermined integer programming problem. In another embodiment, a heuristic technique is used to determine the alternate routing paths.

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Patent Owner(s)

Patent OwnerAddress
QWEST COMMUNICATIONS INTERNATIONAL INC1801 CALIFORNIA STREET SUITE 900 DENVER CO 80202

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Pillsbury, George B Lyons, CO 1 36
Qiu, Yuping Louisville, CO 33 763
Ryan, Jennifer Boulder, CO 6 111
Stevens, Alex Boulder, CO 11 59
Sun, Xiaorong Superior, CO 7 92
Zubiate, Rudy Boulder, CO 1 36

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