从Internet网络发展的速度来看，组播是一个旧概念而不是一个新概念，但它由于各种原因发展比较缓慢。IP组播的概念于1988年最早出现在Steve deering的博士论文中，在1989年Steve deering对标准IP网络层协议进行了扩展，提出了IP组播规范；1992年3月第一次建立组播主干网MBone，IETF并成功地在组播网上举行了一次会议，才引起人们的广泛关注。而第一个WWW浏览器出现在1990年，-from Internet network development pace, a multicast is the old concept is not a new concept. it for a variety of reasons development has been relatively slow. IP Multicast in the concept first appeared in 1988 in Steve deering doctoral dissertation, In 1989 Steve deering to standard IP network layer protocol for the expansion, IP Multicast the norms; March 1992 to establish the first collected from MBone was Multicast Backbone Network, IETF and successful in online multicast held a meeting before aroused extensive attention. While a WWW browser appeared in 1990.