中小规模校园网的设计

发布时间：2018-10-05 21:13

【摘要】：校园网的建设是各个学校的重要组成部分,而它的建设水平则体现了学校的整体水平。在实现信息化校园的过程中,基础是网络建设,核心是资源建设,目标是教学应用,保证是管理体制。校园网是教育信息化建设的重要组成部分,校园网在改变教学方式的同时拓展了教师与学生的知识面,这在很大程度上提高了学生获取、分析以及处理信息的能力,这是适应现代化社会的必备能力。校园网因为学校的规模以及性质的不同,有多种设计方案,但是设计思路则是一样的：首先要查看一个学校的建筑物布置情况,分析系统建设的需求以及限制条件等；然后,确定学校Intranet服务类型,这样就可以确定学校的网络设施、站点的位置、管理、以后的扩展等目标内容；第三,依据学校建筑物的分布特点以及需求给出相对应的网络拓扑图；第四,确定在设计过程中所用到的专业技术、选择设备、布线、软件设置等内容以及这些内容所以遵循的标准与要求；第五,将校园网的实施步骤一一列出,并写出可能出现的问题以及解决方案,还有后期的测试。本文做的是一个中小规模校园网的设计,阐述了校园网建设的总体设计思想,尤其在校园网络的流量优化方面、选用的网络设备方面、测试内容方面阐述了自己的见解。具体内容如下：本文提出了一种解决校园出口长期处于饱和状态的思路,在交换层的交换机上部署QOS策略,因为QOS会标记、整形通过该交换机的全部网络流量,这样做既保证了关键应用的正常访问,又使得非关键应用不能访问,除去了突发流量、非法流量影响网络带宽；通过分析和论证,选用的网络设备是华为厂商生产的。华为的网络设备各种性能较好,而且价格便宜,更重要的是它支持中文版,更适合中国网络；本文楼群间子系统采用光缆,光缆能够提供千兆位的带宽,为将来的扩展提供了余地,接入层采用100M的五类双绞线,保证了数据可以传输的高速。校园网的建设是刻不容缓的,建设一个比较完善而又先进的校园网,它的好处既是显著的又是长远的。
[Abstract]:The construction of campus network is an important part of each school, and its construction level reflects the whole level of the school. In the process of realizing the information campus, the foundation is the network construction, the core is the resource construction, the goal is the teaching application, the guarantee is the management system. Campus network is an important part of educational information construction. Campus network not only changes the teaching method, but also expands the knowledge of teachers and students, which greatly improves the ability of students to obtain, analyze and process information. This is a necessary ability to adapt to modern society. Because of the different size and nature of the school, the campus network has a variety of design plans, but the design idea is the same: first, to check the layout of a school's buildings, to analyze the system construction needs and constraints; and then, Determine the types of school Intranet services, so as to determine the school network facilities, site location, management, future expansion and other objectives; third, according to the school building distribution characteristics and needs to give the corresponding network topology; Fourth, determine the professional technology used in the design process, selection of equipment, wiring, software settings, and other content so that the standards and requirements followed; fifthly, the campus network implementation steps are listed one by one. Write down possible problems and solutions, and later tests. This paper introduces the design of a small and medium scale campus network, and expounds the overall design idea of campus network construction, especially in the aspects of network flow optimization, selected network equipment and test content. The main contents are as follows: this paper puts forward a way to solve the problem that the campus exit is in saturation state for a long time, and deploy the QOS policy on the switch layer, because the QOS will mark and shape all the network traffic through the switch. This not only guarantees the normal access of the key applications, but also makes the non-critical applications inaccessible, eliminating the sudden traffic and illegal traffic affecting the network bandwidth. Through analysis and demonstration, the selected network equipment is produced by Huawei manufacturer. Huawei's network equipment has good performance and low price. What is more important is that it supports Chinese version and is more suitable for Chinese network. In this paper, optical fiber cables are used in the subsystems between buildings, which can provide gigabit bandwidth. The access layer adopts five kinds of twisted-pair wires of 100m to ensure the high speed of data transmission. The construction of campus network is urgent. To build a more perfect and advanced campus network, its benefits are both significant and long-term.
【学位授予单位】：陕西师范大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.18

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