The use of IP broadcast can waste more network resources because not all computer require those messages. Therefore, we can adhibit IP multicast technology for digital video broadcasting to make use of network resource effectively.

• 由于不是所有的主机都需要这些报文 ,因此IP广播浪费了网络资源 ,而将IP组播技术用于数字视频广播 ,能有效地利用网络资源。