IP multicast is a mechanism which can supports multi-point communication efficiently. It utilizes a tree delivery structure, on which data packets are duplicated only at fork nodes and are forwarded only once over each link.
组播是一种有效的支持多点通信的机制,它采用树转发结构,每一个数据包只在节点处被复制,在每一条链路上只发送一次。
参考来源 - 多约束QoS组播路由优化与仿真In this paper, the main characteristic of multi-point communication that has a lot of interactive information of distance education in Internet is analyzed firstly, and some basic principles to design multi-point communication protocols for distance education system are proposed.
本文首先分析了Internet环境下具有大量信息交互的远程教育应用的多方通信特征，提出了为远程教育系统设计多方通信协议的基本原则。
参考来源 - 一个适合远程教育的应用级组播协议研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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