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1、青海民族大學(xué)畢業(yè)論文青海民族大學(xué)畢業(yè)論文(設(shè)計(jì))論文題目:PTN(分組傳輸網(wǎng))組網(wǎng)應(yīng)用學(xué)生姓名:學(xué)號(hào):指導(dǎo)教師:職稱(chēng):院系:物理與電子信息工程學(xué)院專(zhuān)業(yè)班級(jí):通信工程(1)班二○一二年三月三十日29青海民族大學(xué)畢業(yè)論文摘要隨著新型業(yè)務(wù)的大量涌現(xiàn)和網(wǎng)絡(luò)規(guī)模的飛速膨脹,通信行業(yè)的融合趨勢(shì)表現(xiàn)的益加突出。移動(dòng)網(wǎng)絡(luò)架構(gòu)從2G到3G后續(xù)向4G演進(jìn),移動(dòng)網(wǎng)絡(luò)在向IP化,寬帶化發(fā)展的過(guò)程中對(duì)傳輸網(wǎng)提出了更高的要求。SDH/MSTP雖然具備高可靠性,高穩(wěn)定性,易于管理等特點(diǎn),但3G和全業(yè)務(wù)運(yùn)營(yíng)的來(lái)臨,使得SDH/MSTP存在承載IP分組業(yè)務(wù)時(shí)效率較低、配置
2、復(fù)雜,并且靈活性和擴(kuò)展性差的弊端難以滿(mǎn)足現(xiàn)實(shí)需求。而傳輸網(wǎng)需要靈活,高效和低成本的分組傳送平臺(tái)來(lái)實(shí)現(xiàn)全業(yè)務(wù)統(tǒng)一承載和網(wǎng)絡(luò)融合,所以分組傳輸網(wǎng)(PTN)技術(shù)應(yīng)用而生。PTN分組傳送網(wǎng)絡(luò)(PacketTransportNetwork,PTN)不但保持了傳統(tǒng)SDH(SynchronousDigitalHierarch,同步數(shù)字體系)傳送網(wǎng)的優(yōu)點(diǎn),還增加了適應(yīng)數(shù)據(jù)業(yè)務(wù)的特性,如分組交換、統(tǒng)計(jì)復(fù)用、采用面向連接的標(biāo)簽交換等。這些特征使得PTN具有很強(qiáng)的傳送能力,能夠很好地適用于不同業(yè)務(wù)的需求,從而成為了全球炙手可熱的話(huà)題。目前PTN處于標(biāo)準(zhǔn)化狀態(tài),
3、各廠(chǎng)家已推出相應(yīng)PTN設(shè)備,各大運(yùn)營(yíng)商也開(kāi)始產(chǎn)品測(cè)試,甚至開(kāi)始建立PTN網(wǎng)絡(luò)。為此,我們緊跟時(shí)代潮流,本論文系統(tǒng)全面介紹PTN關(guān)鍵技術(shù),應(yīng)用場(chǎng)景,網(wǎng)絡(luò)定位和部署策略等。最后,論文根據(jù)西寧市聯(lián)通網(wǎng)絡(luò)現(xiàn)狀以及移動(dòng),寬帶,大客戶(hù)三大業(yè)務(wù)網(wǎng)絡(luò)的承載需求,分析西寧聯(lián)通城域網(wǎng)目前面臨的壓力,進(jìn)而論述PTN技術(shù)在西寧市本地傳輸網(wǎng)建設(shè)的必要性和構(gòu)建西寧市聯(lián)通城域網(wǎng)組網(wǎng)方案。關(guān)鍵詞:分組傳送網(wǎng),城域傳送網(wǎng),PTNT-MPLS,IP,SDH29青海民族大學(xué)畢業(yè)論文AbstractAbstract:Withalargenumberofnewbusinessem
4、ergingandtherapidexpansionofthescaleofthenetwork,thefusionofthecommunicationindustrytrendofperformance:addoutstanding.Mobilenetworkarchitecturefrom2Gto3Gfollow-uptotheevolutionof4G,mobilenetworkintotheIP,broadbandintheprocessofdevelopment,thetransmissiontoputforwardhigher
5、request.SDH/MSTPthoughahighreliability,highstability,easytomanagementfeatures,but3Gandallthebusinessoperationtocome,makeSDH/MSTPbearingIPpacketwhenexistingbusinesslowefficiency,complexconfiguration,andflexibilityandexpansibilitydifferenceisdifficulttomeetthedisadvantageso
6、fthepracticalneeds.Transmissionandneedtobeflexible,efficientandlowcostthegroupingofplatformtorealizethetransferbusinessunifiedcarryingandnetworkintegration,sopackettransmissionnetwork(PTN)technologyapplicationandlife.PTNPackettransmissionNetwork(PacketTransportNetwork,PTN
7、)notonlykeepthetraditionalSDH(SynchronousDigitalHierarch,SynchronousDigitalsystem)transmissionNetworkadvantages,butalsoincreasedthedatatothenatureofthebusiness,suchasPacketswitching,multiplexing,usingconnection-orientedlabelswitching,etc.ThesecharacteristicsmakePTNhasthev
8、erystrongtransmitability,canisapplicabletodifferentbusinessneeds,tobecometheglobalhottopic.Atpre