基于IP组播的应用问题探讨

组播通信是近年来得到迅速推广的一种通信技术,它能弥补单播通信和广播通信的不足。分析了3种组播类型的特点及相关应用,讨论了组播服务对带宽和延时的要求,最后分析了组播的会话管理、可靠数据传输以及异类接收者支持问题,并提出了共享式学习和本地恢复两种解决异类接收者支持问题的方法。

Discussion about application issue based on IP multicast

Multicast communication is a rapidly generalized technique in recent year. It can make up the insufficiency of unicast and broadcast communication. Firstly this document analyzes the characters of three categories of multicast and relevant applications. Then it discusses the requirements for multicast on bandwidth and latency. Finally it analyzes the issue of multicast about session management, reliable data delivery and heterogeneous receiver support. And it puts forward two methods called shared learning and local recovery to solve the problem of heterogeneous receiver support.