Flexible scheme for admission control of multimedia streams on integrated networks

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United States of America Patent

PATENT NO 5408465
SERIAL NO

08080606

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Abstract

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An admission control scheme for real-time traffic requests in communication networks is disclosed. The scheme monitors tile performance of each link and predicts the traffic guarantees that can be offered when certain dummy traffic (pseudo traffic) mimicking the behavior of real-time streams is added to the existing traffic. When an application requests connection to the network, it specifies a Quality of Service (QoS) bound that it desires. A routing subsystem of tile network makes use of the predicted values while attempting to find a path over which tile application's QoS bound requirement will be satisfied. After the route is chosen, connection setup will involve verifying at each node along the route whether sufficient resources exist to support tile new connection. This explicit verification is likely to be necessary because the routing subsystem does not normally have up-to-date global state information. After admitting tile application, the network provides a soft guarantee that the QoS bound provided to it will be adhered to for most of the time. On the other hand, if no path through the network satisfies the QoS hound, tile application is denied connection to the network.

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Patent Owner(s)

Patent OwnerAddress
HEWLETT-PACKARD DEVELOPMENT COMPANY L P11445 COMPAQ CENTER DRIVE WEST HOUSTON TX 77070

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gusella, Riccardo Menlo Park, CA 1 372
Ramanathan, Srinivas La Jolla, CA 16 1783

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