高校校园网升级改造方案的设计与实现

发布时间：2018-06-13 13:00

本文选题：校园网 + 升级改造　；参考：《华南理工大学》2014年硕士论文

【摘要】：校园网是为学校师生提供教学、科研和综合信息服务的宽带多媒体网络。在网络已经深入人们的工作生活的信息时代，校园网更是成了师生教学、工作、生活不可或缺的一部分。信息化程度的不断提高，对校园网提出了更高的要求，学校校园网改造升级是教育信息化发展与时代发展的必然要求。私立华联学院在2007年高校评估后已经基本实现校园网覆盖全校。由于网络日益普及，入网人数剧增，上网设备不断增加，核心设备渐渐负载过重，出口带宽不够，导致在上网高峰期丢包率过高，网速极慢，严重时甚至使整个学校的网络陷入瘫痪状态，严重影响了校园网络的正常运行；同时随着入网用户的增加，，原有的入网身份认证方式也日益暴露了其缺陷，已经无法适应当前用户认证的需求，经过几期建设的校园网络无论从网络结构，还是管理方面，亟待升级和改造。本文是以私立华联学院校园网为例，分析目前校园网存在的瓶颈和问题，研究设计对校园网的升级改造方案：提出对骨干网络设备进行升级，由单核心改造为双核心，双线路，在网络层次化模型的设计上优化三层网络结构；提出新增校园无线网络，给出了无线网络建设总体设计方案，探讨了其设计思路和核心模块设计；在用户认证系统方面由802.1x认证升级为802.1x+电信翼起来Portal二次身份认证方式，采用多种认证技术实现合理和准确的用户授权、认证和计费；通过部署专业设备来实现网络流量有效控制和管理。最后进行总结，并对校园网的下一步工作重点提出展望。论文从需求分析开始，对学院的网络升级改造作整体规划，随后展开网络方案的各个分支内容。本方案的特点是，在原有设备上的升级改造，减少投入，逐步实施。升级改造方案在私立华联学院已经部分实施，解决了校园网速慢，网络不稳定以及流量计费不准确等问题，实际效果显著。
[Abstract]:Campus network is a broadband multimedia network for teachers and students to provide teaching, scientific research and comprehensive information services. In the information age when the network has penetrated into people's working life, the campus network has become an indispensable part of teaching, working and living for teachers and students. With the continuous improvement of information level, higher requirements are put forward for the campus network. The transformation and upgrading of the school campus network is the inevitable requirement of the development of educational informatization and the development of the times. Private colleges in 2007 after the assessment of colleges and universities have basically achieved the campus network coverage of the whole school. Due to the increasing popularity of the network, the sharp increase in the number of people entering the network, the continuous increase in the number of Internet access equipment, the gradual overloading of the core equipment and the insufficient export bandwidth, the rate of packet loss during the peak period of the Internet is too high and the speed of the network is extremely slow. When it is serious, the whole school network is paralyzed, which seriously affects the normal operation of the campus network. At the same time, with the increase of network users, the original identity authentication mode has increasingly exposed its shortcomings. It has been unable to meet the needs of current user authentication. After several phases of construction, the campus network needs to be upgraded and reformed in terms of network structure and management. This paper takes the campus network of the private Hualian University as an example, analyzes the bottlenecks and problems existing in the campus network at present, studies and designs the upgrading scheme of the campus network. It proposes to upgrade the backbone network equipment from single core to double core and dual circuit. The three-layer network structure is optimized in the design of network hierarchical model, the new campus wireless network is put forward, the overall design scheme of wireless network construction is given, and the design idea and core module design are discussed. In the aspect of user authentication system, it is upgraded from 802.1x authentication to 802.1x telecom wing portal secondary identity authentication mode. Various authentication technologies are used to realize reasonable and accurate user authorization, authentication and billing. Through the deployment of professional equipment to achieve effective network traffic control and management. Finally, the conclusion is made, and the future work of campus network is prospected. This paper starts with the requirement analysis, makes the overall plan for the network upgrade and transformation of the college, and then develops the contents of each branch of the network scheme. This scheme is characterized by upgrading and upgrading the original equipment, reducing investment and gradually implementing. The upgrading scheme has been partially implemented in the private Hualian College, which has solved the problems of slow network speed, unstable network and inaccurate traffic billing, etc., and the actual effect is remarkable.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.18

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