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近年来,局部地区网络(LAN—Local Area Network)标准化工作在世界范围内得到各界专家及学者的高度重视,并相继成立了多个LAN标准化组织,分别致力于该方面的研究。本文从ISO/OSI参考模型入手,提出了网络标准化的必要性,并对开放系统互连参考模型中各层的主要职能做了介绍;随之对在LAN标准化中成就较显著的IEEE·802标准进行了介绍,并将其与OSI进行了比较;最后对LAN标准化的主要工作——数据链路层进行了较具体的讨论。
In recent years, the standardization work of LAN-Local Area Network (LAN) has been highly regarded by experts and scholars from all walks of life all over the world. Several LAN standardization organizations have been set up in succession, which are devoted to the research of LAN-Local Area Network. This paper starts from the ISO / OSI reference model and puts forward the necessity of network standardization. It also introduces the main functions of each layer in the Open Systems Interconnection Reference Model. In the meanwhile, it introduces the IEEE 802 standard that has made remarkable achievements in LAN standardization Were introduced and compared with OSI; Finally, the main work of LAN standardization - data link layer was discussed in more detail.