【摘要】 组播是计算机网络中一种特殊的、高效的通信方式 ,在这种方式中 ,发送者有选择地向一组接收者发送信息 ,因而它在多点通信中具有不可替代的作用 .文中描述了IP组播的机制和特点 ,并对IP组播的一些相关问题作了一定的描述 ,重点就IP组播的可靠传输进行了较详细的讨论 .最后 ,简要介绍了组播技术的研究现状及发展趋势更多还原

【Abstract】 Multi cast is a special and high efficient communication mode in the computer network. In the multi casting communication mode, the senders send information to a group of selected receivers. So, it plays a very important role in multi point communication. In this paper, the mechanism and the characters of multi cast are described. In addition, the correlative problems of IP multi cast are discussed. Reliable data transmission in multi cast is discussed in detail. The current study and developmental trend of multi cast are also discussed at the end.更多还原