本文探讨了多播路由的定义，对多播路由的算法进行了简单分类，最后对每个算法的性能进行了客观的评价，对多播路由技术的进一步研究进行了展望。%This paper gives the definition of multicast routing and classifies routing algorithms,then it presents a objective evaluation of each algorithm in performance and provides a prospect for further research on multicast routing.
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