Importance

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Abstract

The present invention relates to on-line admission-control decisions. Specifically, the invention concerns general delay bounds for both deterministic and statistical cases for Differentiated Services (DiffServ) networks. More specifically, a detailed method of calculation in each case is followed by simpler methods of calculation that are more appropriate for on-line admission-control decisions. Relatively involved occupancy bound calculations for various service classes take place only at the time of network configuration or reconfiguration. At the time of admission control only simple occupancy threshold compliance calculations need to be performed. Concrete illustrations are provided for deriving bounds for the EF and AF classes provided by DiffServ. These results are applicable to both layer-3 networks that support DiffServ and layer-2 networks that support the more restricted class of service functions.

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First Claim