基于NFV架构的VBRAS在城域网的部署研究

发布时间：2018-12-16 06:35

【摘要】：近几年我国政府推出了“互联网+”和“宽带中国”等重大互联网战略举措,互联网逐渐成为国家基础战略设施,在这种互联网络大发展的新形势下,数据通信网络产业面临着许多新的挑战,网络的开放性和创新性成为主要趋势之一。当前主流电信运营商的数据城域网难以快速应对互联网未来业务发展的要求,数据城域网升级和网络架构调整成为各大电信运营商的共同目标。同时在面对持续快速增长的互联网流量和不断推陈出新的互联网业务,传统BRAS在设备利用率、备份机制、部署周期等多方面都难以应对。本文通过理论结合实践的方式,重点研究以下几个方面的内容:(1)在新的互联网业务发展环境下,深入分析当前国内主流运营商城域网内传统的BRAS所面临的硬件、软件、备份等方面问题。(2)通过详细分析对比当前SDN/NFV各类关键技术,包括SDN、NFV、Overlay等,拟选择优势较为明显、技术较为成熟的基于NFV架构的VBRAS技术,来解决传统BRAS存在各种的问题。(3)在实际运营商城域网络中进行搭建基于NFV架构的VBRAS测试环境,对H3C VBRAS 1000的各项功能、性能进行验证,测试结果基本符合预期。(4)根据前节测试结果,详细比对传统BRAS与VBRAS的差异,分析基于NFV架构的VBRAS的部署场景,提出基于NFV架构的VBRAS在当前主流城域网环境下的部署原则和适用场景,为今后主流电信运营商在城域网内部署VBRAS提供借鉴和参考。
[Abstract]:In recent years, the Chinese government has launched major Internet strategic initiatives such as "Internet" and "Broadband China", and the Internet has gradually become the basic strategic facility of the country. Under the new situation of the great development of the Internet, The data communication network industry is facing many new challenges, and the openness and innovation of the network become one of the main trends. At present, the data metropolitan area network of the mainstream telecom operators is difficult to meet the requirements of the future development of Internet services. Upgrading the data metropolitan area network and adjusting the network structure have become the common goals of the major telecom operators. At the same time, in the face of the continuous rapid growth of Internet traffic and the continuous emergence of new Internet services, the traditional BRAS in equipment utilization, backup mechanism, deployment cycle and other aspects are difficult to cope with. By combining theory with practice, this paper focuses on the following aspects: (1) in the new environment of Internet service development, the hardware and software of traditional BRAS in metropolitan area network (man) are analyzed deeply. Backup and other aspects. (2) through the detailed analysis and comparison of the current SDN/NFV key technologies, including SDN,NFV,Overlay, we intend to choose the VBRAS technology based on NFV architecture, which has obvious advantages and mature technology. To solve the problems of traditional BRAS. (3) build the VBRAS test environment based on NFV architecture in the actual operator metropolitan area network, and verify the function and performance of H3C VBRAS 1000. The test results are basically in line with expectations. (4) according to the test results in the previous section, compared with the differences between traditional BRAS and VBRAS in detail, the deployment scenario of VBRAS based on NFV architecture is analyzed. This paper puts forward the principles and applicable scenarios of VBRAS deployment based on NFV architecture under the current mainstream metropolitan area network environment, which provides reference and reference for mainstream telecom operators to deploy VBRAS in metropolitan area network in the future.
【学位授予单位】：浙江工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP393.1

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