目前,不管是工作还是日常生活,都越来越离不开网络信息的传递,尤其是不少企业或政府部门,通过自建或租用线路,开发属于自己的宽带IP城域网,并在其上开展视频会议等应用。组播(multicast)是一种一对多或多对多的多方通信形式,尤其在远程会议、交互式仿真、分布式内容系统、多方游戏等应用中有着广泛的应用,本文针对网络组播这种普遍的网络数据传送方式进行了简单的介绍和分析,抛砖引玉。 At present, whether it is work or daily life, more and more inseparable from the delivery of network information, in particular, many enterprises or government departments, through self-built or leased lines, to develop their own broadband IP MAN, and in its On the video conferencing and other applications. Multicast is a one-to-many or many-to-many multiparty form of communication. It is widely used in applications such as teleconferencing, interactive simulation, distributed content system and multi-party games. In this paper, A general introduction of network data transmission methods and analysis, initiate.