Call admission control methods and apparatus for improving route selection in packet networks
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United States of America Patent
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Jan 27, 2004
Issued Date -
N/A
app pub date -
Oct 4, 2002
filing date -
Dec 15, 1998
priority date (Note) -
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Abstract
A packet switch is configured for determining an equivalent bandwidth for use in GCAC. The equivalent bandwidth definition of the invention is derived by multiplying some known connection parameter such as, for example, a selected bandwidth value by a multiplier preferably computed and stored in look-up tables according to the invention. The appropriate multiplier for a given connection request associated with a call may then be found by accessing sets of the look-up tables based on one or more connection and/or network parameters. For each link in a path considered during GCAC, the product of the multiplication of the selected bandwidth value and the multiplier is then compared to the available bandwidth, AvCR, of the path links to determine if the path satisfies the connection request.
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