校园网毕业设计终版

武汉科技大学本科毕业设计I摘要随着计算机网络技术的发展，网络技术在给人们生活、工作的各方面带来方便和快捷，校园网络的建设已成为学校向信息化发展的必然选择。校园网网络系统是一个非常庞大而复杂的系统，它不仅为综合信息管理、现代化教学和办公自动化等一系列应用提供基本操作平台，而且能提供多种应用服务，使信息能及时、准确地传送给各个系统。从当今世界发达国家教育信息化发展的经验来看，从单机发展到网络，是中高校教育信息化发展的必然趋势。校园网建设势在必行。近年来我国高校校园网发展很快，潜力很大，但问题也很多。校园网工程建设中主要应用了网络技术中的重要分支局域网技术,包括：VLAN，DHCP,DNS,WEB,FTP,SMTP等和计算机网络安全来建设与管理的。本毕业设计课题将主要以校园局域网络建设过程可能用到的各种技术及实施方案为设计方向，进行校园网总体设计，首先要进行对象研究和需求调查，明确学校的性质、任务和改革发展的特点及系统建设的需求和条件，对学校的信息化环境进行准确的描述；其次，在应用需求分析的基础上，确定学校Intranet服务类型，进而确定系统建设的具体目标，包括网络设施、站点设置、开发应用和管理等方面的目标；第三是确定网络拓扑结构和功能，根据应用需求建设目标和学校主要建筑分布特点，进行系统分析和设计；第四，确定技术设计的原则要求，如在技术选型、布线设计、设备选择、软件配置等方面的标准和要求；第五，规划校园网建设的实施步骤。以此为校园网的建设提供理论依据和实践指导，建设一个完整统一、技术先进、高效稳定、安全可靠、易于管理的基于Internet/Intranet的信息化校园网系统。关键词:局域网;计算机网络;网络协议;服务器武汉科技大学本科毕业设计IIAbstractWiththedevelopmentofcomputernetworktechnology,networkingtechnologyinpeople'slives,workingconvenienceandshortcut,theconstructionofcampusnetworkhasbecometheinevitablechoiceofschoolstotheinformationdevelopment.Campusnetworksystemisaverylargeandcomplexsystem,notjustforcomprehensivemodernizationofinformationmanagement,teaching,andprovidesbasicofficeautomationapplicationsandaseriesofplatforms,andcanprovideawiderangeofapplicationservices,makeinformationtimelyandaccuratelytransferredtothevarioussystems.FromtheexperienceofeducationalInformationizationdevelopmentindevelopedcountriesintheworldtoday,fromstand-alonetothedevelopmentofnetworks,isaninevitabletrendofdevelopmentofhighereducationinformatizationin.Theconstructionofcampusnetworkisimperative.Campusnetworkdevelopedrapidlyinrecentyears,hasagreatpotential,butalsoalot.Mainapplicationofnetworktechnologyincampusnetworkconstructionintheimportantbranchoflocalareanetworktechnology,including:VLAN,DHCP,DNS,WEB,FTP,SMTP,andtoconstructionandmanagementofcomputernetworksecurity.ThisgraduateddesigntopicswillmaintocampusCouncildomainnetworkconstructionprocessmaywithtoofvarioustechnologyandtheimplementationprogrammefordesigndirection,forcampusnetworkoveralldesign,firsttoforobjectresearchanddemandinvestigation,clearSchoolofnature,andtaskandreformdevelopmentoffeaturesandthesystemconstructionofdemandandconditions,onschoolofinformationenvironmentforaccurateofdescription;second,inapplicationdemandanalysisofFoundationShang,determineschoolIntranetservicetype,turndeterminesystemconstructionofspecifictarget,includingnetworkfacilities,andsiteset,anddevelopmentapplicationandmanagement,aspectsoftarget;thirdisdeterminenetworktopologystructureandfunction,underapplicationdemand武汉科技大学本科毕业设计IIIconstructiontargetandschoolmainbuildingdistributionfeatures,forsystemanalysisanddesign;IV,determinetechnologydesignofprinciplesrequirements,asintechnologyselection,andwiringdesign,anddeviceselect,andsoftwareconfiguration,aspectsofstandardandrequirements;v,planningcampusnetworkconstructionofimplementationsteps.Thisiscampusnetworkconstructionoftheorybasisandpracticeprovideguidance,buildingafulluniform,advancedtechnology,efficient,stable,safeandreliable,easytomanageinformationsystemincampusnetworkbasedonInternet/Intranet.Keywords:Lan;Computernetworking;Networkprotocol;Servers武汉科技大学本科毕业设计IV目录1绪论.............................................................11.1研究的意义及目的.............................................11.2资源共享.....................................................21.3设备共享.....................................................21.4自动化.......................................................21.5体系方面.....................................................21.6服务方面.....................................................22需求分析.........................................................22.1实施背景.....................................................22.2网络应用需求.................................................22.3方案设计指导思想.............................................32.4网络性能需求.................................................33总体设计方案.....................................................33.1网络拓扑结构.................................................33.1.1可靠性....................................................43.1.2可扩展性..................................................43.1.3其它注意要点：...........................................53.2网络三层结构设计.............................................53.3网络设备及线缆选型...........................................53.3.1核心交换机设备选型.......................................63.3.2汇聚层设备选型...........................................73.3.3接入层设备选型...........................................83.3.4防火墙选型..............................................103.3.5服务器选型..............................................113.3.6接入INTERNET设计.......................................173.3.7VLAN的划分及IP地址的分配..............................183.3.7.1Vlan号(ID)的分配规划...........................183.3.7.2具体VLAN详细表................................183.3.8IP地址的分配原则.......................................193.3.9物理/链路层配置原则.....................................224网络安全与管理..................................................224.1网络安全....................................................224.1.1威胁网络安全因素分析....................................224.1.2网络安全防范措施....