Bandwidth allocation method supporting ABR service in ATM networks

Abstract

We show the movable boundary (MB) method is the effective bandwidth allocation strategy for the ABR service. The MB method can guarantee the QOS requirement according to the service priority and improve bandwidth utilization using the characteristics of the ABR service. The threshold values of the MB are obtained by simulation. The MB method with the fixed thresholds, however, may not have good performance to variation of input traffic parameters. We suggest the dynamic MB method which changes the threshold values adaptively according to the required bandwidth of input traffic.