城域以太网多业务环的实现机制研究

发布时间：2018-02-22 03:31

本文关键词： 多业务环弹性分组环支路保护　出处：《武汉邮电科学研究院》2014年硕士论文　论文类型：学位论文

【摘要】：随着互联网的快速发展,收发邮件和浏览网页已不是人们上网的唯一目的,而是希望以最小的花费获取更多的宽带服务,虚拟专用网(VPN)、局域网高速互联、实时影视点播(VOD)、远程教育、远程医疗等各种业务方兴未艾,应用要求宽带城域网可以满足多业务同时开展,对城域网底层的传输和交换融合提出了极高的期望。城域网多业务环(Multiple Services Ring, MSR)是武汉邮电科学研究院提出的,具有国际先进水平的的光城域网组网和应用国际标准,可以实现传输与交换的一体化,从而促进多业务的融合,MSR创造性的提出了支路业务这一概念,可以实现业务传输与交换的完美结合,被ITU-T采纳。而支路业务的关键技术是支路业务保护,只有实现了支路业务的保护,支路业务才能正常传输和交换。本文首先对MSR标准进行了全面研究分析,并提出了实现方案。研究内容主要包括业务模式、支路保护、性能检测几个方面。详细论述了两种模式、两种管理、两种监测,即在环上运行的业务可提供单播、组播和广播模式,支路业务的1+1,1：1,1：N保护模式,支路带宽管理和优先级管理,支路性能监测和安全过滤监测。本文创新性地提出一种基于支路的故障检测和倒换协商机制,这个机制充分利用了MSR分组化的优势,提高了MSR支路保护的公平性和稳定性。设计了基于MSR网络中链路倒换时间的实现及仿真,并在不同网络结构下对MSR over RPR的倒换时间与其他几种以太环网保护时间进行比较,证明了MSR在业务保护上的优势。论文还在标准的基础上对城域网多业务环网络模型和系统进行设计,论文工作为MSR技术的发展及普及奠定了良好的基础,具有较大的理论意义和实用价值。
[Abstract]:With the rapid development of the Internet, sending and receiving mail and browsing web pages are not the only purpose of people to surf the Internet, but they hope to get more broadband services at the minimum cost, virtual private network (VPN) and LAN (Local area Network) are connected at high speed. Real time video-on-demand (VOD), distance education, telemedicine and other services are in the ascendant. Applications require broadband metropolitan area networks to meet the requirements of multi-service simultaneous development. A high expectation is put forward for the transmission and exchange fusion of the bottom layer of the man. MSRs are the international standards for organizing and applying the optical metropolitan area network (man) with international advanced level, which is proposed by Wuhan Research Institute of Post and Telecommunications Sciences. It can realize the integration of transmission and exchange, thus promote the integration of multi-service. MSR creatively puts forward the concept of branch service, which can realize the perfect combination of service transmission and exchange. Adopted by ITU-T. The key technology of branch service is branch service protection. Only when branch service protection is realized, can branch service be transmitted and exchanged normally. Firstly, this paper makes a comprehensive study and analysis of MSR standard. The research contents mainly include business mode, branch protection and performance testing. Two modes, two kinds of management and two kinds of monitoring are discussed in detail, that is, the business running on the ring can provide unicast. Multicast and broadcast mode, 11 / 1: 1: 1: n protection mode of branch service, branch bandwidth management and priority management, branch performance monitoring and security filtering monitoring. This mechanism makes full use of the advantage of MSR grouping, improves the fairness and stability of MSR branch protection, and designs the implementation and simulation of link switching time based on MSR network. The switching time of MSR over RPR is compared with that of other Ethernet ring networks under different network structure. This paper proves the advantage of MSR in service protection. This paper also designs the model and system of man multi-service ring network on the basis of standard. The work of this paper lays a good foundation for the development and popularization of MSR technology. It has great theoretical significance and practical value.
【学位授予单位】：武汉邮电科学研究院
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.11

【参考文献】