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毕业论文:基于VOIP技术建设企业网络设计.doc

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毕业论文:基于VOIP技术建设企业网络设计.doc

SELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSELECTIONPARAGRAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTSELECTIONPARBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBAGRAPHFOLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSE11111111111111111111111111111111LECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOCTIONPARAGRAPHFORMATLINESPACI2222222222222222222222NGLINESTOPOINTS2SELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSELECTIONPARAGRAPHFCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOCTIONPARAGRASELECSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSELECTIONPARAGRAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTSELECTIONPARBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBAGRAPHFOLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSE11111111111111111111111111111111LECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOCTIONPARAGRAPHFORMATLINESPACI2222222222222222222222NGLINESTOPOINTS2SELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSELECTIONPARAGRAPHFCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOCTIONPARAGRASELEC1目录第1章绪论411VOIP产生的背景412VOIP的发展情况以及未来的发展趋势513IP电话网和普通电话网传送的区别1014VOIP技术简介及应用1215企业VOIP网络建设的目的1416企业VOIP网络的应用特点1417目前企业VOIP网络普遍面临和存在的问题1518企业VOIP网络应用需求分析16181VOIP网络性能需求分析16182VOIP网络可靠性需求分析17183VOIP扩展性、兼容性需求分析17184VOIP网络安全性需求分析17185VOIP网络计费需求分析17186VOIP网络管理需求分析1819本论文的主要工作18SELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSELECTIONPARAGRAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTSELECTIONPARBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBAGRAPHFOLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSE11111111111111111111111111111111LECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOCTIONPARAGRAPHFORMATLINESPACI2222222222222222222222NGLINESTOPOINTS2SELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSELECTIONPARAGRAPHFCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOCTIONPARAGRASELECSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSELECTIONPARAGRAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTSELECTIONPARBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBAGRAPHFOLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSE11111111111111111111111111111111LECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOCTIONPARAGRAPHFORMATLINESPACI2222222222222222222222NGLINESTOPOINTS2SELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSELECTIONPARAGRAPHFCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOCTIONPARAGRASELEC2191论文的整体结构19第二章企业VOIP网络解决方案1921企业VOIP网络整体解决方案19211企业VOIP网络整体拓扑图19212企业VOIP网络拓扑说明20213企业VOIP整体解决方案特点212131“零成本通信212132高安全性212133高稳定性222134全兼容232135可管理性232136可扩展性232137灵活计费策略23214主要设备命令调试24215企业经济效益初步分析25第三章基于VPN的企业VOIP网络安全解决方案2731VPN的概念及特点2732VPN的工作原理2833企业VPN网络解决方案拓扑图2934企业VPN网络解决方案拓扑说明3035基于VPN网络解决方案的特点31351好管理31SELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSELECTIONPARAGRAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTSELECTIONPARBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBAGRAPHFOLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSE11111111111111111111111111111111LECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOCTIONPARAGRAPHFORMATLINESPACI2222222222222222222222NGLINESTOPOINTS2SELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSELECTIONPARAGRAPHFCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOCTIONPARAGRASELECSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSELECTIONPARAGRAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTSELECTIONPARBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBAGRAPHFOLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSE11111111111111111111111111111111LECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOCTIONPARAGRAPHFORMATLINESPACI2222222222222222222222NGLINESTOPOINTS2SELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSELECTIONPARAGRAPHFCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOCTIONPARAGRASELEC3352高安全31353高灵活31354高效率31355低成本31第四章相关网络设备选型3241核心部件选型3342全部设备清单39结论40参考文献附录致谢SELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSELECTIONPARAGRAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTSELECTIONPARBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBAGRAPHFOLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSE11111111111111111111111111111111LECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOCTIONPARAGRAPHFORMATLINESPACI2222222222222222222222NGLINESTOPOINTS2SELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSELECTIONPARAGRAPHFCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOCTIONPARAGRASELECSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSELECTIONPARAGRAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTSELECTIONPARBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBAGRAPHFOLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSE11111111111111111111111111111111LECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOCTIONPARAGRAPHFORMATLINESPACI2222222222222222222222NGLINESTOPOINTS2SELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSELECTIONPARAGRAPHFCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOCTIONPARAGRASELEC4第一章绪论11VOIP产生的背景(1)IP电话的产生INTERNET商业化以后,在全世界,特别是发达国家迅速发展起来。在一些国家(如美国)本地电话INTERNET接入采用包月制,不限时限量,因此INTERNET是近乎免费的(FREE)的,人们都希望能通过这近乎免费的网络进行传统的电话和传真服务。1995年2月以色列VOCALTEC公司研制出可以通过INTERNET打长途电话的软件产品INTERNETPHONE。用户只要在多媒体PC机上安装该软件,就可以通过INTERNET网和任何地方安装同样软件的联机用户进行通话。这项技术上的突破引起全世界的瞩目,其背后的无限商机也使许多公司进行此项技术的研究,从而使IP电话技术得到迅速发展,人们把这种在INTERNET上实现电话业务称为INTERNET电话,应该说是IP电话的雏形。经过五年的发展,IP电话成为信息技术进步带来的一项新型电话业务在全世界开展,并对传统电话业务形成越来越大的威胁。IP电话从当初的PC到PC发展到今天的PC到PC、PC电话、电话到电话等多种业务形式,但不论是现在还是将来,电话到电话的应用将拥有最大的市场,IP电话承载网络可以是INTERNET,更多的是遵循TCP/IP协议的专用网或INTERNET。因此对我们来说,IP电话/传真就是通过IP网络传送电话/传真业务。IP网泛指基本TCP/IP协议的网络,包括因特网INTERNET和企业网INTERNET。(2)IP电话迅速发展的背景,从最初的INTERNET联应用到可以利普通电话实现通话,IP电话在短短的几年间得到了非常迅速的发展。IP电话为什么会在这样短的时间里引起全球电信界的关注,并且正在或将要对传统的通信方式产生巨大的冲击这除了IP电话采用语音压缩和统计复用技术节约宽带从而造成运营成本降低外,还有以下两个原因第一,电话业务历来都是各国管制最为严格的业务,但对于IP电话各国大多采取宽容甚至是扶植的态度,如美国将IP电话归类为增值业务,从而不必承担长途电话公司所受的管制规定,这样IPSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSELECTIONPARAGRAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTSELECTIONPARBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBAGRAPHFOLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSE11111111111111111111111111111111LECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOCTIONPARAGRAPHFORMATLINESPACI2222222222222222222222NGLINESTOPOINTS2SELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSELECTIONPARAGRAPHFCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOCTIONPARAGRASELECSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSELECTIONPARAGRAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTSELECTIONPARBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBAGRAPHFOLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSE11111111111111111111111111111111LECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOCTIONPARAGRAPHFORMATLINESPACI2222222222222222222222NGLINESTOPOINTS2SELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOINTSELECTIONPARAGRAPHFCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCORMATLINESPACINGLINESTOPOINTSSELECTIONPARAGRAPHFORMATLINESPACINGLINESTOPOCTIONPARAGRASELEC5电话提供长途电话业务时,不必向本地电话公司交纳占长途电话费40左右的接入费。这样庞大的通信市场潜力,必然吸引众多传统和新型的电信公司加入到IP电话的研究、开发和经营的队伍中。第二,各国国际长途电话费存在着严重的不平衡性,且国际长途电话业务在很多国家都是垄断经营的。这样,国际话费低的国家电信运营者可以利用各国对IP电话的政策优惠,通过IP电话

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