【摘要】 组通信是分布式系统的一个重要研究领域。本文首先介绍组通信机制的基本概念与基本需求,讨论组应用的基本特征和基本组通信服务,探讨多媒体对组通信机制提出的新的挑战,最后介绍几种实际的组通信系统。更多还原

【Abstract】 Group communication is an important research field in distributed systems. In this paper, the basic concepts and requirements of group communication are presented at first, and then the basic features and services of group communication are discussed. The new challenges posed by distributed multimedia group applications are introduced. Finally,several existing group communication systems are given.更多还原