ON THE EXPERIMENT ABOUT QOS OF CBR TRAFFIC IN A BURSTY ENVIRONMENT
突发业务环境下CBR业务性能的实验分析

CBR is one of the most important kinds of real-time traffic in ATM network. Guarantying the quality of service(QOS) of CBR traffic is crucial to the success of ATM technology. So, analyzing the QOS of the CBR traffic is worth studying. The paper analyzes the QOS of CBR traffic in a bursty enviroment through computer simulation. It is found that multiplexer utilization, buffer capacity, background intensity and autocorrelation property of the background traffic can all make hard effects on the delay and delay jitter of CBR traffic. Especially, when the background traffic exhibits long-range dependence, the QOS of CBR traffic will degrade severely. Some control actions should be taken to minimize the effects of all the factors.