Abstract

A rate-based congestion control algorithm has been developed and standardized in the ATM Forum for available bit rate (ABR) service class. In the standard, the behavior of source and destination end systems is specified by several control parameters such as RIF (rate increase factor) and RDF (rate decrease factor). In spite of the fact that the performance of the rate-based congestion control algorithm heavily depends on the selection of these control parameters, the selection method of parameters is not shown in the standard. By extending our previous work, appropriate settings of rate-control parameters in the various circumstances are investigated. We first analyze the dynamical behavior of the rate-based congestion control for multiple groups of ABR connections with different propagation delays. We then evaluate the effect of constant bit rate (CBR) traffic on ABR connections.

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