宽带多媒体卫星网络

沈阳理工大学学士学位论文I摘要随着计算机技术和信息技术的快速发展，卫星网络与人们的生活的关系越来越密切。宽带多媒体卫星网络作为能够提供宽带、高速传输、多媒体业务，实现全球无缝隙覆盖的互联手段，越来越为人们所重视。无论对于任何网络，网络管理在网络运行过程中发挥着重要作用。而配置管理和性能管理在整个网络管理中处于非常重要的地位。但相对于地面网络而言，宽带多媒体卫星网络规模庞大，组成的设备复杂多样，其特有的高时延性、动态性、异构性、资源的有限性决定了网络管理尤其是配置管理和性能管理的作用更为突出。本文重点研究宽带多媒体卫星网络管理的结构特点，并分析该网络的管理系统，根据OSI网络管理模型的结构以及宽带多媒体卫星网络的特点对功能模型中的配置管理做了重点研究与实现。首先介绍宽带多媒体卫星的拓扑结构和ATM技术在网络中的应用；其次详细探讨了网络管理的设计思想、体系结构、通信机制和管理协议；接着研究了网络管理中的拓扑发现算法，拓扑中Ping命令；并在此基础上，设计了基于SMNP协议的配置管理系统，实现了对卫星设备，终端设备配置信息的查询，修改，备份和同步。关键词：宽带多媒体卫星网络；SNMP协议；配置管理沈阳理工大学学士学位论文IIAbstractWiththerapiddevelopmentofthenetworkandthesatellitecommunicationtechnology,theglobalizationoftheinformationisproceedingnearly.Thebroadbandmulti-mediasatellitenetworkisgettingmoreandmoreattentionasitcanprovidebroadband,high-speedtransmission,multi-mediafunctionsandrealizeglobalnon-seamcoverage.Mypaperfocustodiscussthestructurecharacteristicsofbroadbandmulti-mediasatellitenetworkmanagement,andanalyzedthenetworkmanagementsystem.AccordingtothestructureoftheOSInetworkmanagementmodelandthecharacteristicsofbroadbandmultimediasatellitenetwork,researchandachievetheconfigurationmanagementandperformancemanagement.FirstlyI'dliketointroducethetopologyofbroadbandmulti-mediasatelliteandtheapplicationofATMtechnologyinnetwork,andsecondlyanalyzesnetworkmanagementindetail,systemstructure,communicationmechanismandmanagementagreement.ThenresearchthenetworktopologydiscoveryalgorithmandthemanagementofPingcommand.Onthisbasis,designamanagementsystembasedonSMNPagreement.Implementationofsatelliteequipment,terminalequipmentconfigurationinformationaccess,modify,backupandsynchronization.Keywords:BroadbandMulti-mediaSatelliteNetwork,SNMPProtocol,ConfigurationManagement沈阳理工大学学士学位论文III目录摘要.....................................................................................................................................................IAbstract................................................................................................................................................II1绪论................................................................................................................................................11.1课题背景.............................................................................................................................11.2国内外研究现状.................................................................................................................21.3本文研究内容.....................................................................................................................32宽带多媒体卫星网络....................................................................................................................42.1宽带多媒体卫星网络拓扑结构.........................................................................................42.2ATM技术...........................................................................................................................52.2.1ATM技术简介......................................................................................................52.2.2ATM交换原理......................................................................................................72.3ATM在宽带多媒体卫星通信网络中的应用....................................................................72.3.1卫星ATM网络的优点...........................................................................................72.3.2卫星ATM网络的结构...........................................................................................83宽带多媒体卫星网络管理系统..................................................................................................103.1宽带多媒体卫星网络管理系统体系结构.......................................................................103.1.1宽带多媒体卫星网络管理体系结构.....................................................................113.2宽带多媒体卫星网络的通信机制...................................................................................123.2.1通信链路................................................................................................................123.2.1通信机制................................................................................................................133.3SNMP协议.......................................................................................................................143.3.1SNMP协议体系结构............................................................................................143.3.2SNMP消息格式....................................................................................................143.4功能模型...........................................................................................................................173.4.1配置管理功能模块................................................................................................173.4.2计费管理功能模块................................................................................................173.4.3安全管理功能模块................................................................................................183.4.4性能管理功能模块.......................................................................................