A theoretical queue model of ATM switch with Bernoulli arrivals of two priorities and finite output buffer capacity is developed. The average queue size,the loss probability of packet and the average waiting time are derived.

• 对双优先级贝努利（Bernoulli）分布到达的有限输出队列ATM交换模型进行了理论分析，导出了平均队长、平均分组丢失率、平均分组等待时间等关系式。