毕业设计（论文）内容与要求：
一：本论文的目的、意义
1.为了增强学校的信息化建设，实现真正有现代化教育模式现有的教育手段已经远远不能满足为现代社会培养人才的需要。建设校园网络是基础教育信息化的根本途径，丰富多彩、健康清新的校园网络文化将成为学校培养学生思维方式、道德品质、创造能力的新环境，成为面向全体学生，培养全面发展的高素质人才的崭新平台。
2. 校园网络的规划建设直接标志着学校教学水平的高低，直接影响学校的教学质量。通过网络,可以了解大学生关心的热点,可以丰富思想政治教育的资源,可以开展生动活泼的教育活动,使大学生思想政治教育提高实效性,扩大覆盖面,增强影响力。新形势下,加强高校校园网建设,是时代赋予高校的一项新的重要任务,是加强和改进大学生思想政治教育的迫切需要,是培养高素质合格人才的迫切需要,是维护高校和社会稳定的迫切需要 。
二：学生应完成的任务
1. 搜集学校的概况及用户需求的资料
2. 写出需求分析
3. 全面深入的设计学校的拓扑结构和具体的方案
4. 全面规划校园网络安全措施和网络管理
5. 总结
摘要
校园网（Campus Network）是利用Internet 技术（如TCP/IP协议等）把一个学校内的信息资源链接起来，使全校师生员工能共享校园网络上的各种信息资源，同时又通过通信线路与外部的Internet网络连接。它是由计算机设备、网络设备、网络技术、应用软件、资源库等构成的综合应用系统。校园网是学校重要的教学设施和对外宣传的窗口，是实现学校教学手段现代化、教学管理科学化、公共服务信息化的重要前提和基础，是学校提高师生素质，实现素质教育的重要手段.加强校园网络建设是高校面向二十一世纪现代化建设的迫切需要。
本设计方案阐述了组建校园网的意义和目的，论述了建设校园网的重要性，并结合学校的实际状况，从建网目的、建网应遵循的原则、网络功能、网络性能和投资规模等方面对学校校园网的建设作出需求分析,进行系统分析和设计；在技术选型、设备选择等方面严格遵守国际组网标准和要求。
关键词:网络技术 技术选型 组网标准
Abstract
Campus Network (Campus Network) is the use of Internet technologies (such as TCP / IP protocol, etc.) to a school of links to information resources, so that all the students and staff on campus network can share the various kinds of information resources, but also through lines of communication and the external Internet network connections. It is from computer equipment, network equipment, network technology, software applications, resource library, which consists of integrated applications. Campus Network is the school''s teaching facilities and important external propaganda on the windows of the school is to achieve modernization of teaching methods, teaching and scientific management, public services, information technology and an important prerequisite for the foundation and the schools to improve student quality, and realize the importance of quality education means. strengthen the college campus network construction is oriented to the 21st century is an urgent need of modernization.
The design on the campus network set up the meaning and purpose, discussed the importance of building campus network, combined with the actual situation of the school, from building a network to network construction should follow the principle of network functions, network performance and the scale of investment, etc. aspects of the school building to the campus network needs analysis, system analysis and design in the technology selection, equipment selection, and other aspects of network strict compliance with international standards and requirements.
Keyword：Networking Technical shaping Network standard
目录
第一章 引言 1
第二章 需求分析 2
2.1学院概况 2
2.2用户需求 2
2.3技术需求 3
第三章 网络总体设计 4
3.1网络设计的原则 4
3.2主干网的设计 4
3.2.1网络技术的选择 4
3.2.2校园网的总体设计 4
3.2.3IP地址的规划 6
3.3FTP服务器的配制 7
第四章 网络安全设计 11
第五章 网络管理设计 12
结 论 13
致 谢 14
参考文献 15
第一章 引言
校园网正逐渐成为各学校必备的信息基础设施，其规模和应用水平将是衡量学校教学与科研综合实力的一个重要标志。校园网的本质是以网络为工具，以用户为中心，以应用为灵魂，以教育为目的, 利用在宽带校园网络基础设施上，用最新的计算机信息技术，构建校园信息化平台。而用户能安全的、可靠的、快速的访问网络信息资源、对数据资源共享，这和网络技术息息相关。所以如何地进行战略性统筹考虑，避免那种短期的、重复的低水平网络建设，以及从设计的方面来解决局域网络飞速发展与实际应用需求之间存在的问题，这些都是值得认真探讨的重要问题。因此，网络的总体设计非常重要。
本方案完成对湖北工业大学校园网络的规划、设计及实现。论文主要介绍了湖北工业大学的校园网的总体设计，所要完成的是网络设计与实现的整个过程。重点的说明了校园网的设计思想、难点技术和解决方案。
第二章 需求分析
2.1学院概况
湖北工业大学是一所以工学为主，工、文、理、经、管等多学科协调发展，在湖北省高教体系中起龙头示范作用的省属重点大学。学校办学历史可追溯到1952年，本科教育办学历程已逾46年。
学校主校区坐落在武昌南湖，艺术设计学院、机电研究设计院设在武昌马房山，校园占地面积1600余亩。设有12个教学单位、 20多个教学、科研机构；建有各类实验室58个，其中湖北省重点实验室2个、湖北省普通高校机械基础实验教学示范中心1个。
学校拥有较完善的教学、文体活动和生活服务设施。并且湖北工业大学校园网络系统是一个以全校师生及管理人员为服务对象的电子信息交换网络，旨在通过建立统一的计算机网络通信平台，提高湖北工业大学管理的科学性和规范性，提高全校的办公自动化水平，提高全校师生的教学水平、科研水平，并为学校各部门提供快速高效的网络信息服务。
2.2用户需求
由于学校已有46年的办学历程，故一些旧的办公楼等只是安装了简单的网络,少量的多媒体教室,随着学校的不断发展,传统的教学已远不能适应学院的发展,而且学校里90%的学生也要求能上网,利用网络学习更多的东西,拓展知识面。主要的是目前学校有15个院系、图书馆、13个教学科研室和16个管理机构都使用着计算机进行大量计算、统计、分析、管理和文字处理等工作。所以校园网的网速被大的降低了，为了适应教学、科研和管理工作的需要，加强校内各部门之间的信息交流和共享，提高工作效率和教学质量，有必要建立一个全校范围内、有效、实用且快速的计算与通讯环境校园网络。使得湖北工业大学的网络达到如下四个方面的应用：第一，校园网是为学生学习活动服务的，是一种学习工具。它不但是学生与他人之间的交流工具，同时也是学习资源的提供者，有利于学生进行探索学习和协作学习。第二，校园网是为教师的教学和科研活动服务的，如提供教学资源、辅助教师备课，参与课堂教学活动和支持教师再学习活动等。第三，校园网是为学校教育教学管理服务的，如辅助学校的学生学籍管理、人事管理、财务管理等。第四，校园网是沟通学校与外面的窗口，利用它既可以从校外获取各种信息，也可以向外发布各种信息。
2.3技术需求
湖北工业大学校园网建设的总体目标是利用各种先进、成熟的网络技术和通信技术，采用统一的网络协议（TCP/IP），建设一个可实现各种综合网络应用的高速计算机网络系统，校内各部门通过网络连接起来。
在网络主体设计上本方案采用万兆以太网为主体，星型拓扑图为主干的网络管理系统，以满足整个网络的带宽需求。对各个子网使用了手工划分IP的技术将子网进行划分，使每一个IP地址得到很好的管理和利用。又由于校园网络是对服务器使用最大的地方，本方案采用各种服务器配置的技术，着重的介绍了FTP服务器的配置过程。至于网络安全管理方面，则采用复合型的防火墙技术，主要功能是对整个网络信息进行筛选，防止非法入侵者进入到网络。
第三章 网络总体设计
3.1网络设计的原则
校园网的规划不仅要考虑到现有局域网的情况，更主要的是着眼于为未来的学校提供既符合经济原则，又具有技术先进性和实用性的发展策略。因此要进得网络设计的过程中要遵守以下的原则：先进性，开放性，扩充性，可靠性，实用性，安全性， 可维护性，可操作性，经济性。
3.2主干网的设计
3.2.1网络技术的选择
1.网络拓扑结构的选择
计算机网络拓扑结构是通过网络中节点与通信线路之间的几何关系表示网络结构，反映了网络中各实体间的连接关系。常用的网络拓扑结构有总线型、环型和星型等结构形式。基于星型拓扑结构具用延迟时间表少、传输误差低、结构简单、易于扩展、维护方便等特点，便于本学院的网络管理和网络扩展。本方案采用星型拓扑结构，以网络中心为主要结点，其它的重要大楼作为外围主干结点。
2. 校园网组网技术的选择
目前，国内校园网主干网上采用的组网技术主要有100Mbps的快速以太网， ATM网络，千兆以太网和万兆以太网。根据对国内校园网建设情况的了解和学院的需求可以知道本学校校园网的建设目标就是要在校内构筑一套高性能、全交换、以万兆以太网为主体、以星型（树）结构为主干的遍布整个校园的信息网络系统，以满足大负载网络的访问需求。我们采用以第三层交换为基础的万兆以太网技术校园网的网络主干，这样可以充分满足校园内各种一般应用和学校多媒体应用需求。
3.2.2校园网的总体设计
湖北工业大学校园网是一个以学校综合楼为网络中心，并以教学楼群、图书馆、办公大楼、学术交流中心、重点实验室、宿舍楼群为二级分中心，其间以万兆以太协议及光缆传输介质成中心向四周辐射的星形状互连，然后将学校各部门、学生宿舍等连入校园网。由于网络主干采用万兆以太，故可以充分满足学校各部门对网络带宽的一般需要和特殊需要，由于采用第三层交换技术，所以可对不同的应用需求划分各自的虚拟子网，子网间既相互联系又彼此隔离，充分满足安全及带宽管理的要求。整个方案采用层次化网络拓扑结构,即从核心层、分布层、接入层三层进行设计。
1. 网络核心层设计
核心层采带有第三层交换模块的万兆以太网交换机。核心交换机之间采用聚合链路（Port Trucking),该技术可使交换机之间连接最多四条负载均衡的冗余连接。当两个交换机之间的一条线路出现故障时，传输的数据会快速自动切换到另外一条线路上进行传输，以使网络真正具备高容量、无阻塞、可靠的多媒体传输和优质的管理能力。
2. 分布层设计
在校园园区楼宇连接时，主要楼宇放置二级交换机。分布层交换机和核心交换机都在全双工模式下连接，保证分支主干的无阻塞交换。
3. 网络接入层设计
接入层交换机放置于每幢楼的楼层内可用于直接接入到终端用户。采用可网管、可堆叠的高性能交换机。
对外网的连接我们采用中国电信与中国移动两家网络运营商进行连接，通过路由器接入到学校的网络中心，以满足学院的高带宽，并保证了与外网连接的可靠性。
Graduation Project (Thesis) content and requirements:
1: The purpose of this paper, significance
1. In order to enhance the school''s information technology to achieve truly modern mode of education has been far from the existing means of education does not meet the needs of training personnel in modern society. The building of the campus network is a basic fundamental approach to education, information technology, colorful, healthy and fresh culture of the campus network will be the schools to help students way of thinking, moral character, ability to create a new environment has become for all students to develop all-round development of high-quality brand-new platform for talent.
2. The campus network planning construction of a mark The level of instruction in schools, directly affecting the quality of teaching in schools. Through the network, you can understand the concern of hot college students, can enrich the ideological and political education resources, they can conduct a lively educational activities, so that ideological and political education to enhance their effectiveness, coverage and influence. The new circumstances, strengthen the university campus network construction is the time to give universities a new and important task is to strengthen and improve ideological and political education of the urgent need is to cultivate high-quality urgent need for qualified personnel, universities and social stability is to maintain The urgent needs.
2: Students should complete the task of
1. Collection of school profiles and information on user needs
2. Written needs analysis
3. Comprehensive in-depth topology design schools and specific programs
4. A comprehensive plan for the campus network security and network management
5. Summary
Abstract
Campus network (Campus Network) is the use of Internet technologies (such as TCP / IP protocol, etc.) to a school to link information resources to enable school staff and students on the campus network to share a variety of information resources, at the same time through the communication line with the the external Internet network connections. It consists of computer equipment, network equipment, network technology, applications, constitute a comprehensive resource library and other applications. The school campus network is an important teaching facilities and outreach of the window, is to achieve the modernization of teaching methods, teaching and scientific management, public services, information technology an important prerequisite and foundation for the school to improve teacher quality, an important means to achieve quality education. strengthen the network construction is a college campus for the twenty-first century, the urgent need for modernization.
The design describes the formation of meaning and purpose of campus network, discusses the importance of building a campus network, combined with the actual situation of the school, from the network construction purposes should follow the principles of network construction, network functionality, network performance and investment scale aspects of the construction of the school campus network to make needs analysis, system analysis and design; in technology selection, equipment selection and so on strict compliance with international networking standards and requirements.
Keywords: Network technology, networking technology selection criteria
Abstract
Campus Network (Campus Network) is the use of Internet technologies (such as TCP / IP protocol, etc.) To a school of links to information resources, so that all the students and staff on campus network can share the various kinds of information resources , but also through lines of communication and the external Internet network connections. It is from computer equipment, network equipment, network technology, software applications, resource library, which consists of integrated applications. Campus Network is the school''s teaching facilities and important external propaganda on the windows of the school is to achieve modernization of teaching methods, teaching and scientific management, public services, information technology and an important prerequisite for the foundation and the schools to improve student quality, and realize the importance of quality education means. strengthen the college campus network construction is oriented to the 21st century is an urgent need of modernization.
The design on the campus network set up the meaning and purpose, discussed the importance of building campus network, combined with the actual situation of the school, from building a network to network construction should follow the principle of network functions, network performance and the scale of investment, etc. aspects of the school building to the campus network needs analysis, system analysis and design in the technology selection, equipment selection, and other aspects of network strict compliance with international standards and requirements.
Keyword: Networking Technical shaping Network standard
Directory
Chapter 1 Introduction
Chapter II Demand Analysis 2
2.1 College Overview 2
2.2 The user needs two
2.3 Technical Requirements 3
Chapter 4 Network Design
3.1 Network design principle 4
3.2 Backbone network design 4
3.2.1 Network Selection 4
3.2.2 Campus Network Design 4
3.2.3IP address planning 6
3.3FTP server preparation 7
Chapter 11 Network Security Design
Chapter 12 Network Management Design
Conclusion 13
Thanks 14
References 15
Chapter Introduction
Campus schools are gradually becoming an essential information infrastructure, its size and application level will be the measure of teaching and research an important indicator of overall strength. Campus network is based on the nature of the network as a tool to user-centric, to apply for the soul of education for the purpose of the use of broadband network infrastructure on campus, using the latest computer information technology, information platform built on campus. The user can secure, reliable, fast access to network information resources, sharing of data resources, which are closely related and networking technology. So, consider how to carry out a strategic co-ordination to avoid the kind of short-term, repeated low-level network construction, as well as from the design in order to address the rapid development of local area networks and the actual problems between the application needs, which are worthy of serious discussion important issues. Therefore, the network''s overall design is very important.
Completion of this program, Hubei University of Technology campus network planning, design and implementation. Paper mainly introduces the Hubei University of Technology campus network, the overall design, is to be accomplished by network design and implementation of the whole process. Illustrates the focus of the campus network design idea, difficult technology and solutions.
Chapter II Demand Analysis
2.1 School Overview
Therefore, Hubei University of Technology is an engineering-based, engineering, arts, science, economics, management and other multi-disciplinary coordinated development, in Hubei province to play a leading higher education system, a model of the provincial key university. School''s operating history can be traced back to 1952, undergraduate education course school for more than 46 years.
School main campus is located in Wuchang South Lake, College of Art and Design, Electrical and Mechanical Research & Design Institute is located in Wuchang Ma Fangshan, the campus covers an area of more than 1,600 acres. With 12 teaching units, more than 20 teaching and research institutions; built various types of laboratories, 58 of which 2 Key Laboratory of Hubei Province, Hubei Province, colleges and universities mechanical basic experimental teaching demonstration centers 1.
The school has a better teaching, cultural and sports activities and life service facilities. And Hubei University of Technology campus network system is a whole school and management staff as a target of electronic information exchange network to a computer network through the establishment of a unified communications platform to improve the management of Hubei University of Science and normative, to improve school of office automation level, to improve the standard of teaching teachers and students, research level, and for schools and departments to provide fast and efficient network of information services.
2.2 User Requirements
Because the school has 46 years of school history, so some of the old buildings are just to install a simple network, a small number of multi-media classrooms, with the continuous development of the school, the traditional teaching has been far can not meet the college''s development, but also school 90% of the students also require access to the Internet, using the Internet to learn more things, expand their knowledge. The main problem is the current school has 15 faculties, a library, 13 teaching and research rooms, and 16 regulatory agencies use the computer for a large number of calculations, statistics, analysis, management and word processing and so on. Therefore, speed campus network has been a large reduced, in order to meet the teaching, research and management and to strengthen internal exchange of information between various departments and sharing, and improve working efficiency and the quality of teaching, it is necessary to establish a school within the effective, practical and fast computing and communication environment in the campus network. Hubei University of Technology''s network make up the application of the following four aspects: first, the campus network is service learning activities for students, is a learning tool. It is not only between students and other communication tools, but also a provider of learning resources will help students to explore learning and collaborative learning. Second, the campus network is for teachers, teaching and research activities in services, such as the provision of teaching resources to support teachers in preparing to participate in classroom activities and support for teachers to re-learning activities. Third, the campus network is for school education and teaching management services, such as secondary school students in student status management, personnel management, financial management. Fourth, the campus network is the communication between schools and outside the window, using both kinds of information from off-campus access, you can also publish a variety of information from outside.
2.3 Technical Requirements
Hubei University of Technology campus network construction The overall objective is to use a variety of advanced and sophisticated network technology and communication technology, adoption of a unified Internet Protocol (TCP / IP), building a comprehensive network enables a variety of applications, high-speed computer network system, the school departments connected through the network.
In the network of the main design of the program uses Gigabit Ethernet as the main photo shows the backbone of the star topology network management system to meet the bandwidth needs of the entire network. On each sub-network using IP-technology will be divided by hand subnet divided so that each IP address to be well managed and utilized. Also, because the campus network is the server where the biggest, the program uses a variety of server configuration, technology, focused on introduction to the FTP server''s configuration process. As for the network security management is concerned, the composite type of firewall technology, the main function is to filter the entire network information to prevent illegal intruders into the network.
Chapter III of the Network Design
3.1 The principle of network design
Campus Network''s plan would not only take into account the existing local area network, and more the main thing is to focus on schools for the future consistent with economic principles, but also has technology advanced and practical development strategies. So to get in the network design process, we need to observe the following principles: advanced, openness, scalability, reliability, availability, security, maintainability, operability, economy.
3.2 Backbone network design
3.2.1 Network Selection
1. The choice of network topology
Computer network topology by the network nodes and communication lines, said geometric relationship between the network structure, reflecting the network connections between the various entities in the relationship. Commonly used network topologies are bus, ring-and star-shaped structure of the form. Star topology based on a schedule with fewer delays, transmission errors is low, simple structure, easy to expand, maintain and convenient features, the purpose of this college''s network management and network expansion. The program uses a star topology, with network-centric as the main node, the other important buildings as the external backbone nodes.
2. Campus networking technology options
At present, the domestic campus network backbone networking technology used mainly 100Mbps Fast Ethernet, ATM networks, Gigabit Ethernet and Gigabit Ethernet. Based on the internal campus network construction and academic understanding of the situation needs to know the campus network construction of this goal is to build a high-performance in schools, full exchange, in order to Gigabit Ethernet as the main body, in order to star (tree) structure backbone throughout the campus information network system to meet the needs of large load-network access. We use a third-layer Gigabit Ethernet switching technology based on the campus network, network backbone, so as to fully meet the general application of a variety of campus and the school multi-media applications.
3.2.2 Campus Network Design
Hubei University of Technology campus network is a school complex building for the network center, and to the teaching-rise buildings, libraries, office buildings, Academic Exchange Center, Key Laboratory of the housing complex for the two sub-centers, during which the Gigabit Ethernet agreement and the optical transmission medium into the center of the star shape of radiation to the surrounding interconnect, and then the school departments, student dormitories, etc. connected to the campus network. As the network backbone using Gigabit Ethernet, it can fully meet the schools in all sectors of the network bandwidth needs and special needs in general, due to adopt a third layer switching technology, it can be for different application requirements into their respective virtual sub-network, subnet Inter-linkages with each other not only isolated to fully meet the requirements of security and bandwidth management. Program as a whole using a hierarchical network topology, that is, from the core layer, distribution layer, access layer three-tier design.
1. Network Core Layer Design
Core layer to adopt with the third layer switching module''s Gigabit Ethernet switch. Between the core switches using Link Aggregation (Port Trucking), the technology enables the switch to connect up to four load balancing between redundant connections. When a line between the two switches fails, the data will be quickly transmitted automatically switch to another one transmission line in order to make the network truly high-capacity, non-blocking, reliable multimedia transmission and quality management capabilities.
2. Distribution Layer Design
Park in the campus buildings are connected, the main buildings placed two switches. Distribution layer switches and core switches are in full-duplex mode to connect to guarantee non-blocking switching branch trunk.
3. Network Access Layer Design
Access layer switch placed on the House floor in each block can be used for direct access to end-users. Use of Managed, stackable, high-performance switches.
External network connections we use both China Telecom and China Mobile network operators to connect, through the router access to the school''s network center, to meet the college high-bandwidth, and ensuring the reliability and external network connections.
