互联网络联网的基本原理-3_广域网(zslcn周生烈编译摘注评)

《互联网络联网的基本原理-3_广域网(zslcn周生烈编译摘注评)》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊(fm.DocWikiCISCO/zslcn编译注)三．IntroductiontoWANTechnologies介绍广域网技术联网技术手册指导目录Contents§Part1InternetworkingBasics互联网络联网基本原理§Part2LANTechnologies局域网技术§part3WANTechnologies广域网技术§part4InternetProtocols互联网协议§part5BridgingandSwitching桥接和交换§part6Routing路由§part7Netw

2、orkManagement网络管理§part8Voice/DataIntegrationTechnologies声音/数据集成技术§part9WirelessTechnologies无线技术§part10CableAccessTechnologies有线接入技术§part11Dial-upTechnology拨号技术§part12SecurityTechnologies安全技术§part13QualityofServiceNetworking联网服务质量§part14NetworkCachingTechnologies网络缓存技术§part15IBMNetworkMa

3、nagementIBM网络管理§part16MultiserviceAccessTechnologies多业务接入技术http://docwiki.cisco.com/wiki/Introduction_to_WAN_TechnologiesThispagewaslastmodifiedon17December2009,at21:54三．IntroductiontoWANTechnologies介绍WAN技术FromDocWikiJumpto:navigation,searchThisarticleintroducesthevariousprotocolsandtec

4、hnologiesusedinwide-areanetwork(WAN)environments.Topicssummarizedhereincludepoint-to-pointlinks,circuitswitching,packetswitching,virtualcircuits,dialupservices,andWANdevices.ChaptersinPart3,“WANProtocols,”addressspecifictechnologiesinmoredetail.本章介绍了用于WAN(广域网)环境的各种协议和技术。在这里概述的题目包括点对点链路，

5、电路交换，分组包交换，虚电路，拨号服务，和WAN设备。在手册第3部分,‘WAN协议’,的各章里将更详细地讲述专门技术。Contents[hide]1WhatIsaWAN?什么是广域网？1.1Figure:WANTechnologiesOperateattheLowestLevelsoftheOSIModel图1.1：广域网技术运行在OSI模型的最低三层2Point-to-PointLinks点对点链路2.1Figure:ATypicalPoint-to-PointLinkOperatesThroughaWANtoaRemoteNetwork图2.1：一个通过广域网到远

6、程网的,典型的点对点链路的运行3CircuitSwitching电路交换3.1Figure:ACircuit-SwitchedWANUndergoesaProcessSimilartoThatUsedforaTelephoneCall9图3.1：一个电路交换的广域网经历了类似于用于电话呼叫的过程4PacketSwitching分组交换4.1Figure:PacketSwitchingTransfersPacketsAcrossaCarrierNetwork图4.1：分组交换将数据包传输通越一个承载网络5WANVirtualCircuits广域网虚电路6WANDialu

7、pServices广域网拨号电路7WANDevices广域网设备7.1WANSwitch广域网交换机7.1.1Figure:TwoRoutersatRemoteEndsofaWANCanBeConnectedbyWANSwitches图7.1.1广域网远程两端的两个路由器可以通过广域网交换机连接起来7.2AccessServer接入服务器7.2.1Figure:AnAccessServerConcentratesDial-OutConnectionsintoaWAN图7.2.1：一个接入服务器将各拨出连接连到一个广域网内7.3Modem调制解调器7.