TCP is a transport protocol providing transmission of data over IP networks, and IP is a network protocol containing addressing and control information that allow for data to be routed.
TCP是通过IP网络提供数据传输的协议，IP是一个包含寻址和控制信息，允许数据路由的协议。
IP multicast technique realizes efficient data transmission from one point to multiple points in IP network, and remedies the defects of unicast and broadcast communication.
IP组播技术实现了IP网络中点到多点的高效数据传输， 它能弥补单播通信和广播通信的不足。
The IP multicasting technology provides an effective transmission mode in which the same data is transmitted from one sender to a group of receivers.
IP多播技术提供一个发送者向一组接收者传送相同数据的传输方式。
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