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局部网络(Lccal Networks)是现代计算机科学与工程中正迅速发展的新兴技术之一,它已引起广泛关注。本文主要论述局部网络的基本特征、体系结构以及通信协议.文中结合局部网络技术的新近进展,着重讨论了局部网络体系结构中的三种范畴,包括拓扑结构、访问控制方式和传输技术;以及IEEE802局部网络协议,包括局部网络标准的功能要求、IEEE局部网络参考模式(IEEE LAN/RM)和它与其它典型局部网络协议的比较.文中还介绍了基于IBM个人电脑的PCnet等局部网络实例.
Lccal Networks, one of the emerging technologies that are rapidly evolving in modern computer science and engineering, has drawn wide attention. This paper mainly discusses the basic characteristics, architecture and communication protocol of local network.Combined with the recent development of local network technology, this paper focuses on the three categories of local network architecture, including topology, access control methods and transmission technologies, as well as IEEE802 Local network protocols, including functional requirements for local network standards, IEEE local network reference mode (IEEE LAN / RM), and its comparison with other typical local network protocols are described in this article as well as local network examples such as PCnet based on IBM personal computers.