基于向量交换技术的IP骨干网的设计与实现

发布时间：2018-11-09 16:15

【摘要】：随着计算机技术和互联网的迅猛发展,“三网融合”的发展趋势日益明朗。人们对网络传输数据需求的越来越多样化,使得分组交换网络的负载急剧增加,互联网正面临着十分严重的技术挑战。十几年来,国内外科技人员积极研究下一代互联网技术以应对这些问题和挑战,分形网就是国内的研究成果之一。但是由于当前IP网的主导地位,分形网不可能马上取代IP网。本文将分形网提出的向量交换技术应用到IP骨干网(文中称之为端口交换网络),以推动IP网向下一代网络的平滑过渡。本文首先介绍了下一代互联网的国内外研究现状,并将向量交换技术与当前主流网络IP和MPLS网络的分组交换技术进行了综合的对比；然后详细阐述了将向量交换技术应用到IP核心骨干网的设计细节,描述了端口交换路由器的基本结构,同时对新定义的端口交换协议以及端口交换过程的关键部分做了详细说明；通过Jackson网络建模对分组交换网络进行了网络平均时延分析；然后用SimpleScalar仿真得到分析参数,比较了IP转发与向量交换的转发性能,分析了路由器在不同负载下的队列存储空间需求；在综合考虑转发能力和功耗的情况下,给出了IP网络与端口交换网络在分组转发平均时延上的对比;最后用OPNET仿真工具将端口交换网络与IP网络进行端到端时延模拟测试和对比,验证了将向量交换技术应用到IP骨干网的可行性和端口交换网络的优越性。
[Abstract]:With the rapid development of computer technology and Internet, the development trend of "three-net convergence" is becoming clearer. The demand for network data is becoming more and more diverse, which makes the load of packet-switched network increase rapidly. The Internet is facing a very serious technical challenge. For more than ten years, scientists and technicians at home and abroad have been actively studying the next generation Internet technology to meet these problems and challenges. Fractal network is one of the domestic research results. However, because of the dominant position of IP nets, fractal nets can not replace IP nets immediately. In this paper, the vector switching technique proposed by fractal network is applied to IP backbone network (called port switching network) in order to promote the smooth transition from IP network to next generation network. This paper first introduces the current situation of the next generation Internet research at home and abroad, and compares the vector switching technology with the current mainstream network IP and MPLS network packet switching technology. Then, the design details of the application of vector switching technology to the IP core backbone network are described in detail, and the basic structure of the port switching router is described. At the same time, the new defined port exchange protocol and the key parts of the port exchange process are described in detail. The average delay of packet switching network is analyzed by Jackson network modeling. Then the analysis parameters are obtained by SimpleScalar simulation, the forwarding performance of IP forwarding and vector switching is compared, and the queue storage space requirements of routers under different loads are analyzed. Considering the forwarding ability and power consumption, the comparison between IP network and port switching network on the average packet forwarding delay is given. Finally, the end-to-end delay simulation test and comparison between the port switched network and the IP network are carried out by using OPNET simulation tool, which verifies the feasibility of applying vector switching technology to the IP backbone network and the superiority of the port switching network.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.02

【共引文献】