With such advantages as great throughput,high network reliability,good antidestruction and so on,DQDB network utilizes hybrid?switching combined by circuit switching and packet switching,and provides integrated services.

• DQDB网具有吞吐量大、网络的可靠性高、抗毁性好等优点，它采用电路交换和分组交换相结合的混合交换方式，提供综合业务。