毕业论文(设计)-PTN(分组传输网)组网应用
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青海民族大学
毕业论文（设计）
论文题目： PTN（分组传输网）组网应用
学生姓名： 学号：
指导教师： 职称：
院 系： 物理与电子信息工程学院
专业班级： 通信工程（1）班
二○一二年三月三十日
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精选文档 摘 要
随着新型业务的大量涌现和网络规模的飞速膨胀,通信行业的融合趋势表现的益加突出。移动网络架构从2G到3G后续向4G演进，移动网络在向IP化，宽带化发展的过程中对传输网提出了更高的要求。SDH/MSTP虽然具备高可靠性，高稳定性，易于管理等特点，但3G和全业务运营的来临，使得SDH/MSTP存在承载IP分组业务时效率较低、配置复杂，并且灵活性和扩展性差的弊端难以满足现实需求。而传输网需要灵活，高效和低成本的分组传送平台来实现全业务统一承载和网络融合，所以分组传输网（PTN)技术应用而生。
PTN分组传送网络(Packet Transport Network, PTN)不但保持了传统SDH(Synchronous Digital Hierarch,同步数字体系)传送网的优点,还增加了适应数据业务的特性,如分组交换、统计复用、采用面向连接的标签交换等。这些特征使得PTN具有很强的传送能力,能够很好地适用于不同业务的需求,从而成为了全球炙手可热的话题。
目前PTN处于标准化状态，各厂家已推出相应PTN设备，各大运营商也开始产品测试，甚至开始建立PTN网络。为此，我们紧跟时代潮流，本论文系统全面介绍PTN关键技术，应用场景，网络定位和部署策略等。最后，论文根据西宁市联通网络现状以及移动，宽带，大客户三大业务网络的承载需求，分析西宁联通城域网目前面临的压力，进而论述PTN技术在西宁市本地传输网建设的必要性和构建西宁市联通城域网组网方案。
关键词：分组传送网,城域传送网,PTN T-MPLS， IP ，SDH
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精选文档 Abstract
Abstract: With a large number of new business emerging and the rapid
expansion of the scale of the network, the fusion of the communication
industry trend of performance: add outstanding. Mobile network
architecture from 2 G to 3 G follow-up to the evolution of 4 G, mobile network
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 come, make SDH/MSTP bearing IP packet when existing business
low efficiency, complex 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 network
integration, so packet transmission network (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 connection-oriented label switching, etc. These characteristics make
PTN has the very strong transmit ability, can is applicable to different
business needs, to become 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 network. For this, we
follow the trend of The Times, this paper introduced comprehensively PTN
key technology system, application scenarios, network positioning and
deployment strategy, and so on. Finally, based on the current situation
of xining city unicom network and mobile, broadband, big customers three
business network load demand, analysis of xining unicom intracity networks
are currently facing pressure, and then discusses PTN technology in xining
local transmission network construction necessity and the construction of
xining unicom intracity networks network scheme.
Key words: Packet transmission network metropolitan area transport
nets PTN T-MPLS IP SDH
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精选文档 目 录
绪论……………………………………………………………………1
1分组传送网（PTN）概述………………………………………… 3
1.1 PTN技术简介……………………………………………………3
1.2 PTN技术的原理…………………………………………………3
1.3 PTN技术特点与形态……………………………………………3
1.4 PTN与SDH区别…………………………………………………4
1.5 PTN的体系构架和网络功能平面………………………………4
1.6 PTN关键技术……………………………………………………5
1.6.1 OAM技术………………………………………………………5
1.6.2 PTN网络的生存性技术………………………………………6
1.6.3 PTN网络的全业务提供技术…………………………………6
2 PTN网络层次定位与网络应用场景分析…………………………7
2.1 PTN网络层次定位………………………………………………7
2.2 基于对城域网网络应用场景分析………………………………7
2.3 PTN网络的组建及组网模式……………………………………11
2.3.1 PTN的组网模式………………………………………………11
2.3.2 PTN的组网结构………………………………………………11
2.3.3 PTN组网方案…………………………………………………12
2.4 PTN发展现状……………………………………………………14
3 西宁联通3G城域网PTN组网应用 ………………………………15
3.1西宁联通3G城域网PTN网建背景 ……………………………15
3.1.1 3G城域网对分组业务的需求 ………………………………15
3.1.2 西宁联通3G城域网现状及架构 ……………………………16
3.2西宁联通城域网PTN网络架构 …………………………………16
3.3西宁联通城域PTN建设策略与方案 ……………………………17
3.3.1建设策略 ………………………………………………………17
3.3.2网络定位 ………………………………………………………18
3.3.3西宁市城域网拓扑图设计 ……………………………………18
3.3.4建设方案 ………………………………………………………19
3.3.5网络管理方案 …………………………………………………21
3.3.6新建PTN传输网建设规模 ……………………………………22
4 结论…………………………………………………………………23
