【摘要】 通过对现有动态组播路由算法及协议的研究和分析,在总结QoS动态组播路由问题研究现状的基础上,提出了一个协议框架,并就此协议框架中的动态问题、QoS问题及分层问题提出了一些理论上的解决办法。此框架试图利用集中式算法作为组播路由的预计算方法,同时结合分布式地动态收集QoS信息,做出QoS相关的组播路由决定。把一些现代互联网的先进技术,如Anycast机制等,结合到组播路由算法中,使组播路由算法具有更大的灵活性和可扩展性。更多还原

【Abstract】 QoS-based dynamic multicast-routing-protocol framework is put forward according to research on existing dynamic multicast routing algorithms and protocols, and some methods are presented to solve dynamic problem, QoS problem, and hierarchy problem. In this protocol framework, centralized algorithms are used as precomputation methods with which distributed collecting QoS information is combined. Some advanced modern network techniques, such as anycast technique, make the multicast routing algorithm more flexible and scalable.更多还原