对具有延迟、带宽和低代价等多Q OS约束的多播路由算法进行研讨,描述了一种适应于研究Q OS多播路由的网络模型,提出一种具有多Q OS约束的动态多播路由算法(DM RAQ OS),DM RAQ OS试图有效地减少生成多Q OS约束的多播树的开销,使多播组成员能动态地加入/退出多播会晤,且不干扰现有的多播树。仿真实验结果表明,与YAM和Q OSM IC比较,DM RAQ OS具有较小的延时和较少的代价。 A multicast routing algorithm with Q OS constraints such as delay, bandwidth and low cost is discussed. A network model suitable for studying Q OS multicast routing is described, and a dynamic multicast routing with multiple Q OS constraints is proposed Algorithm (DM RAQ OS), DM RAQ OS attempts to effectively reduce the overhead of generating multicast tree with multiple Q OS constraints, so that multicast group members can join / leave multicast sessions dynamically without interrupting the existing multicast tree . The simulation results show that DM RAQ OS has less delay and less cost compared with YAM and Q OSM IC.