基于CCN的集中式演示平台及关键技术

发布时间：2018-04-08 23:27

本文选题：内容中心网络　切入点：集中式平台　出处：《北京邮电大学》2017年硕士论文

【摘要】：互联网已成为支撑现代社会经济发展、社会进步和科技创新的最重要的信息基础设施。经过四五十年发展,计算技术、通信技术和应用模式等相比互联网建立之初都发生了翻天覆地的变化,传统的TCP/IP架构应对这些挑战已经越来越吃力。为了从根本上解决现网面临的各种问题,相关专家提出了信息中心网络架构,其典型代表为内容中心网络(CCN)。CCN力图改变以主机地址为中心的点对点通信模式为以内容为中心的全新通信模式,力求提供一个更加安全可靠与高扩展性的网络架构。然而,随着CCN研究的深入及其应用的增多,在现实网络环境中缺乏相应地便于管理部署和测试CCN应用的可视化集中式管控平台,对于网络流量统计、性能分析和节点状态监听等工作只能借助于繁琐的命令行。本文深入研究CCN网络和CCNx源码并分析测试与研究需求,使用主流的Web技术,用Java语言在Linux平台上设计并开发了一套基于CCN的集中式演示平台系统。该系统中以小型集群的规模部署在局域网中,使用其中一个节点对整个分布式网络进行集中管控,在可视化页面进行网络操作并显示测试结果。同时,为获得更好的性能,本文基于CCNx源码在工程上实现了 FIX(p)的缓存策略以取代其默认的Always策略。本系统给CCN的后续研究与评估及CCN应用的评测带来了一个全新的体验,人机交互性更好,更容易操作且兼具高拓展性。最后,为验证该系统的有效性、可用性和易操作性,在文件分发、网络抗毁性和内容源移动性三个方面设计完成了对比测试,评测数据同时也验证了 CCN较于传统TCP/IP网络的优越性以及可扩展性。
[Abstract]:The Internet has become the most important information infrastructure to support modern social economic development, social progress and scientific and technological innovation.After 40 or 50 years of development, computing technology, communication technology and application mode have all undergone tremendous changes compared with the beginning of the establishment of the Internet. The traditional TCP/IP architecture has been more and more difficult to cope with these challenges.In order to solve all kinds of problems faced by the current network fundamentally, the relevant experts put forward the information center network structure.The typical representative of CCN is the content-centric network. CCN tries to change the point-to-point communication mode from the host address to a new content-centric communication mode and to provide a more secure and highly scalable network architecture.However, with the deepening of CCN research and the increase of its application, there is a lack of visual centralized control platform to manage, deploy and test CCN applications in the real network environment.Performance analysis and node state listening can only be done by the tedious command line.In this paper, we deeply study the CCN network and CCNx source code, and analyze the test and research requirements. Using the mainstream Web technology, we design and develop a set of centralized demonstration platform system based on CCN on Linux platform with Java language.In this system, a small cluster is deployed in the local area network, one of the nodes is used to control the whole distributed network centrally, the network is operated on the visual page and the test results are displayed.At the same time, in order to achieve better performance, this paper based on the CCNx source code in the project to implement the cache policy of FIXP) to replace its default Always policy.This system has brought a new experience to the follow-up research and evaluation of CCN and the evaluation of CCN application. The man-machine interaction is better, the system is easier to operate and has high expansibility.Finally, in order to verify the effectiveness, usability and maneuverability of the system, a comparative test is completed in three aspects: file distribution, network survivability and content source mobility.The evaluation data also verify the superiority and expansibility of CCN compared with the traditional TCP/IP network.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP393.0;TP311.52

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