【正文】 ,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。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)的來臨， 使得 SDH/MSTP 存在 承載 IP 分組業(yè)務(wù)時(shí)效率較低、配置復(fù)雜，并且靈活性和擴(kuò)展性差 的弊端難以滿足現(xiàn)實(shí)需求。 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： 院 系： 物理與電子信息工程學(xué)院 專業(yè)班級(jí)： 通信工程（ 1）班 二○一二年三月三十日 青海民族大學(xué)畢業(yè)論文 1 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)展的過程中對(duì)傳輸網(wǎng)提出了更高的要求。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。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題。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。 關(guān)鍵詞：分組傳送網(wǎng) ,城域傳送網(wǎng) ,PTN TMPLS， IP ， SDH PTN（分組傳送網(wǎng)）組網(wǎng)應(yīng)用 2 Abstract Abstract: With a large number of new business emerging and the rapid expansion of the scale of the work, the fusion of the munication industry trend of performance: add outstanding. Mobile work architecture from 2 G to 3 G followup to the evolution of 4 G, mobile work in to the IP, broadband in the process of development, the transmission to put forward higher request. SDH/MSTP though a high reliability, high stability, easy to management features, but 3 G and all the business operation to e, make SDH/MSTP bearing IP packet when existing business low efficiency, plex configuration, and flexibility and expansibility difference is difficult to meet the disadvantages of the practical needs. Transmission and need to be flexible, efficient and low cost the grouping of platform to realize the transfer business unified carrying and work integration, so packet transmission work (PTN) technology application and life. PTN Packet transmission Network (Packet Transport Network, PTN) not only keep the traditional SDH (Synchronous Digital Hierarch, Synchronous Digital system) transmission Network advantages, but also increased the data to the nature of the business, such as Packet switching, multiplexing, using connectionoriented label switching, etc. These characteristics make PTN has the very strong transmit ability, can is applicable to different business needs, to bee the global hot topic. At present in the state PTN standardization, each manufacturer has launched the corresponding PTN equipment, each big operators also began to product testing, and even began to establish PTN work. For this, we follow the trend of The Times, this paper introduced prehensively PTN key technology system, application scenarios, work positioning and deployment strategy, and so on. Finally, based on the current situation of xining city uni work and mobile, broadband, big customers three business work load demand, analysis of xining uni intracity works are currently facing pressure, and then discusses PTN technology in xining local transmission work construction necessity and the construction of xining uni intracity works work scheme. Key words: Packet transmission work metropolitan area transport s PTN TMPLS IP SDH 青海民族大學(xué)畢業(yè)論文 3 目 錄 緒論 ?????????????????? ???????? 1 1 分組傳送網(wǎng)（ PTN）概述 ???????????????? 3 PTN 技術(shù)簡(jiǎn)介 ???????????????????? 3 PTN 技術(shù)的原理 ??????????????????? 3 PTN 技術(shù)特點(diǎn)與形態(tài) ????????????????? 3 PTN 與 SDH 區(qū)別 ??????????????????? 4 PTN 的體系構(gòu)架和網(wǎng)絡(luò)功能平面 ???????????? 4 PTN 關(guān)鍵技術(shù) ???????????????????? 5 OAM 技術(shù) ???? ????????????????? 5 PTN 網(wǎng)絡(luò)的生存性技術(shù) ??????????????? 6 PTN 網(wǎng)絡(luò)的全業(yè)務(wù)提供技術(shù) ????????????? 6 2 PTN 網(wǎng)絡(luò)層次定位與網(wǎng)絡(luò)應(yīng)用場(chǎng)景分析 ?????????? 7 PTN 網(wǎng)絡(luò)層次定位 ?????????????????? 7 基于對(duì)城域網(wǎng)網(wǎng)絡(luò)應(yīng)用場(chǎng)景分析 ???????????? 7 PTN 網(wǎng)絡(luò)的組建及組網(wǎng)模式 ?????????????? 11 PTN 的組網(wǎng)模式 ?????????????????? 11 PTN 的組網(wǎng)結(jié)構(gòu) ?????????????????? 11 PTN 組網(wǎng)方案 ??????????????????? 12 PTN 發(fā)展現(xiàn)狀 ???????????????????? 14 3 西寧聯(lián)通 3G 城域網(wǎng) PTN 組網(wǎng)應(yīng)用 ???????????? 15 西寧聯(lián)通 3G 城域網(wǎng) PTN 網(wǎng)建背景 ??????????? 15 3G 城域網(wǎng)對(duì)分組業(yè)務(wù)的需求 ???????????? 15 西寧聯(lián)通 3G 城域網(wǎng)現(xiàn)狀及架構(gòu) ??????????? 16 西寧聯(lián)通城域網(wǎng) PTN 網(wǎng)絡(luò)架構(gòu) ????????????? 16 西寧聯(lián)通城域 PTN 建設(shè)策略與方案 ??????????? 17 建設(shè)策略 ????????????????????? 17 網(wǎng)絡(luò)定位 ????????????????????? 18 西寧市城域網(wǎng)拓?fù)鋱D設(shè)計(jì) ?????????????? 18 建設(shè)方案 ????????????????????? 19 網(wǎng)絡(luò)管理方案 ??????????????????? 21 新建 PTN 傳輸網(wǎng)建設(shè)規(guī)模 ?????????????? 22 4 結(jié)論 ????????????????????????? 23 PTN（分組傳送網(wǎng)）組