关于局域网中的通信协议英文对照关于局域网中的通信协议中英文对照.doc

关于局域网中的通信协议中英文对照 About the local area network communication protocol in Chinese and English language compared 　一、引言 First, the introduction 　　要实现网络间的正常通信就必需选择合适的通信协议，有很多人误认为通信协议就是TCP/IP协议，只要网络能正常连通，其它协议没有用，事实上，不同的网络协议都有其存在的必要。 To achieve normal communication between networks is necessary to choose the appropriate communication protocol, there are many people mistakenly believe that the communication protocol is TCP/IP protocol, as long as Internet properly connected, the other agreement is useless, in fact, different network protocol has its existence is necessary. 　　二、通信协议的分类组建网络时，必须选择一种网络通信协议，使得用户之间能够相互进行“交流”。协议（Protocol）是网络设备用来通信的一套规则，这套规则可以理解为一种彼此都能听得懂的公用语言。关于网络中的协议可以概括为两类：“内部协议”和“外部协议”。 Second, the classification of the communication protocol to form a network, you must select a network communication protocol, allows the user between communication to each other. Communication Protocol (Protocol) is a network device used for a set of rules, the rules can be understood as a kind of common language can understand each other. About the network protocol can be summarized as two types: internal agreement and external agreement. 　　1、内部协议1978年，国际标准化组织（ISO）为网络通信制定了一个标准模式，称为OSI/RM（Open System Interconnect/Reference Model，开放系统互联参考模型）体系结构。该结构共分七层，从低到高分别是物理层、数据链路层、网络层、传输层、会话层、表示层和应用层。其中，任何一个网络设备的上下层之间都有其特定的协议形式，同时两个设备（如工作站与服务器）的同层之间也有其使用的协议约定。在这里，将这种上下层之间和同层之间的协议全部定义为“内部协议”。内部协议在组网中一般很少涉及到，它主要提供给网络开发人员使用，如果只是为了组建一个网络，可不去理会内部协议。 1, internal agreement in 1978, the international organization for standardization (ISO) set a standard for network communication Model, called the OSI/RM (Open System Interconnect/Reference Model of Open System interconnection) Reference Model architecture. The structure is divided into seven layers, from low to high respectively is the physical layer, data link layer, network layer, transport layer, session layer, presentation layer and application layer. On any network device of the lower form, has its specific agreement between the two devices