大型企业网络规划与设计-毕业论文

学士学位论文论文题目:大型企业网络规划与设计院(部)名称:学生姓名:专业:网络工程学号:2007指导教师姓名:论文提交时间:2011-5-20论文答辩时间:2011-5-28学位授予时间:教务处制大型企业网络规划与设计I大型企业网络规划与设计摘要迅速发展的Internet正在对全世界的信息产业带来巨大的变革和深远的影响。市场的全球化竞争已成为趋势。对于大型企业来说，在调整发展战略时，必须考虑到市场的全球竞争战略，而这一切也将以信息化平台为基础，借助计算机网络原理及网络规划技术，以网络通畅为保证。企业内部网（Intranet）是国际互连网（Internet）技术在企业内部或封闭的用户群内的应用。Intranet是使用Internet技术,特别是TCP/IP协议而建成的企业内部网络。这种技术允许不同计算机平台进行互通,且不用考虑其位置。也就是所说的用户可以对任何一台进行访问或从任何一台计算机进行访问。本文从企业网络需求开始分析，根据现阶段cisco公司主流网络设备进行选材,规划最适用于目标网络的拓扑结构,建设合理的网络设计方案。本课题实施部分由GNS3模拟器来搭建网络拓扑结构，利用cisco设备操作系统unzip-c2691-advsecurityk9-mz.124-11.T2作为拓扑内所有设备核心IOS，然后用SecureCRT进行路由器交换机的相关配置，并测试其结果最终验证网络的规划与设计符合大型企业的需求。关键词：企业网络，拓扑结构，冗余，路由，交换大型企业网络规划与设计IILargeEnterpriseNetworkPlanningandDesignAbstractTherapiddevelopmentoftheInternetisallovertheworldinformationindustryofenormouschangeandfar-reachingconsequences.Marketcompetitionhasbecomethetrendofglobalization.Forlargeenterprises,inadjustingthedevelopmentstrategy,musttakeintoaccountthemarket'sglobalcompetitivenessstrategy,andallthisinformationplatformwillalsobebasedontheprincipleoftheuseofcomputernetworksandnetworkplanningtechnologytothenetworkinordertoensurepatency.IntranetisaninternationalInternettechnologyintheenterpriseorwithinaclosedusergroupapplications.IntranetistheuseofInternettechnologies,especiallyTCP/IPprotocolandthecompletionoftheenterpriseinternalnetwork.Thistechnologyallowsinteroperabilityofdifferentcomputerplatforms,anddonothavetoconsideritsposition.Thatiswhattheusercanvisitanyorfromanycomputeraccess.Fromthestartthewholeenterpriseclassnetworkneedsanalysis,basedonthemainstreamstagecisconetworkequipmentcompanyselection,withthegoaltobuildthemostsuitablenetworktopology,designedwithnetworktechnology.AspartofthisimplementationtobuildthesimulatorGNS3networktopology,theuseofciscodeviceoperatingsystemsunzip-c2691-advsecurityk9-mz.124-11.T2forallequipmentwithinthecoretopologyIOS,routersandswitchesusingSecureCRTfortheconfiguration,andviewtheexperimentalresultstoverifythatthenetworkmeetsbusinessneeds.Keywords：Enterprisenetworks,Topology,Redundancy,Routing,Switching大型企业网络规划与设计III目录第1章绪论............................................................11.1研究背景........................................................11.2目的和意义......................................................2第2章关键的网络技术原理..............................................32.1大型企业网络的定位..............................................32.2关键技术研究....................................................32.2.1路由技术...................................................32.2.2交换技术...................................................42.2.3远程访问技术..............................................42.2.4VLAN......................................................42.2.5DHCP......................................................52.2.6GRE.......................................................52.2.7VPN.......................................................62.2.8PVST......................................................62.2.9HSRP......................................................72.2.10AAA认证..................................................7第3章大型企业网络需求分析............................................93.1案例分析........................................................93.2大型企业网络分析...............................................113.2.1宽带性能需求.............................................113.2.2稳定可靠需求.............................................113.2.3服务质量需求.............................................123.2.4网络安全需求.............................................123.2.4应用服务需求.............................................123.3本课题系统需求分析.............................................13第4章网络系统实现...................................................144.1大型企业网络拓扑图.............................................144.2VLAN及IP地址的规划..........................................144.3关键网络设备及数量.............................................154.4关键网络设备介绍...............................................164.5网络设备配置...................................................184.5.1基础配置.................................................18大型企业网络规划与设计IV4.5.2使用VTP..................................................194.5.3划分VLAN.................................................214.5.4交换链路封装.............................................224.5.5PVST技术.................................................234.5.6PVST的三个FAST..........................................234.5.7DHCP.....................................................244.5.8HSRP.....................................................264.5.9根防护...................................................274.5.10路由协议................................................274.5.11GRE-VPN.................................................284.5.12AAA服务器...............................................314.5.13PBR20M专线.............................................314.5.14网管控制................................................324.5.15其他配置.................................................334.6施工管理.......................................................344.6.1施工前准备...............................................3