This paper discusses the main challenge of multicast congestion control and proposes a router-assisted rate-based congestion control algorithm for real-time multimedia streams in reliable multicast.

• 面向可靠组播中的多媒体流传输业务,讨论了目前组播拥塞控制面临的主要挑战,提出了一种路由器辅助基于速率的组播拥塞控制算法。