毕业设计
外文文献翻译专业交通运输
姓名张有节
同组成员赖思琪杨鹏
指导老师刘习华
Campus Network planning and Construction At present, China's rapid development of the cause of the campus network, to early 2003, almost all colleges have set up their own campus network, and carry out a variety of its services and applications. Campus Network build a rich learning resources to enhance the efficiency of education. But as the number of users increased dramatically increased and the pattern of operations, campus network security is increasingly conspicuous, and the ever threat to the healthy development of the campus network, as an education development of the information industry should not be neglected problem. This paper focuses on the campus network design and the process of building the campus network established the goal of building, campus network technology programme design, information resources construction, application software development, network ma
nagement and security, the five key issues. The campus network is the infrastructure of importance of school, taking the school teaching, research, managing and outward communicate many roles of etc..
The safe condition of the campus net affects the teaching activity of the school directly.Set up in the network of initial stage, the safe problem may still be not outstanding, but along with applied thorough, various data of the campus net would nasty play increment, the safe problem beginning of various each kind perplexes us.The Internet flies to develop soon, to the campus network the teachers and the students' life and studies have already produced the profound influence, the network have already not have no place in our life at. But at enjoy the convenience that high technology bring at the same time, we need to be awake of know, the safe problem of network also become the network application more and more increasingly and seriously huge bar, the situation that the campus network safety hazes already arrived and must unify the management and resolve thoroughly, only good resolve the safe problem of network, the application of the campus network then can be healthy, high speed of development. We should consider the comprehensive usage fire wall and encrypt several measures, such as technique and the completely, work in coordination, strengthening the management, looking for the
design翻译balance point of insure the network safety and the network efficiency from it, the safety of the comprehensive exaltation campus network, thus build up rise a set of real in keeping with safe system of the calculator network of the school.
The time today's knowledge-based economy and information technology have the development and popularization of Internet in the world have decided the time the network will become the main tool for information. With the development of computer network technology, network has become an important platform for the exchange of information. Internet-based e-learning with time-sensitive, shared, interactive and many of the characteristics of the individual, so it has a traditional teaching model of unmatched advantages. It created a new teaching model, breaking the traditional teaching model at the time and space limitations, the use of advanced teaching methods and teaching methods, greatly improve the teaching efficiency and teaching effectiveness, teaching and learning activities to enable a new level. Do a good job in  the design of the campus network, are among the schools, both internal and external communication between the key and convenient.
21st century the size of the campus network and application level are reflected in schools and science teaching and learning environment an important component of the force, so we should make use of existing campus conditions, design a secure, unified campus network.
Large Campus Network Design
Businesses operating large campus networks are increasingly looking for infrastructure upgrades to:
(1) Handle high bandwidth applications such as voice, video, and IP multicast Improve backbone capacity for shared Ethernet or FDDI campus backbones
(2) Support applications based on Novell IPX, DECNET, AppleTalk, and SNA
(3) Offer high availability, performance, & manageability for your company's intranet.
Use Layer 2, Layer 3, or ATM backbone solutions to expand your large campus network. In typical designs, the buildings or different parts of the campus connect together across a high performance, switched backbone. Network redundancy and
high availability is provided at each layer. A high capacity, centralized server farm provides resources to the campus, and when combined with Cisco IOS, network management strategies support QoS, security, troubleshooting, and other common management features from end to end.
Medium Campus Network Design A medium campus consists of one large building or several buildin
gs. Networking for a medium campus is designed for high availability, performance, and manageability. This is also called a 'collapsed backbone' design for medium campus networks. Additional requirements of these designs typically include:
(1) High performance and availability for bandwidth applications such as voice, video, and IP multicast
(2) Shared Ethernet or FDDI building backbone which is running out of capacity
(3)Support for applications based on Novell IPX, DECNET, AppleTalk, and SNA Based on the Cisco A VVID architecture, these intelligent network platforms and products provide the basis for a complete network solution.
Small campus networks Design
In most cases, network redundancy is not the top priority, but cost effectiveness is. Additional requirements of these designs typically include:
(1) High performance and availability for bandwidth applications such as voice, video, and IP multicast
(2) Shared Ethernet or FDDI building backbone which is running out of capacity
(3) Support for applications based on Novell IPX, DECNET, AppleTalk, and SNA
校园网的规划与构建
目前，我国校园网事业飞速发展，至2003年初，几乎所有的大中专院校都建立了自己的校园网，并在其上开展了多种服务和应用。校园网的建设丰富了学习资源、提高了教育效率。但随着用户数的急剧增加和业务样式的增多，校园网的安全问题也日益突出，无时无刻不在威胁校园网络的健康发展，成为教育信息化建设中不容忽视的问题。本文着重论述了校园网设计与建设过程中确立建设校园网的目标，校园网的技术方案设计，信息资源建设，应用软件的开发，网络管理与安全五个关键问题。校园网络作为学校重要的基础设施，担当着学校教学、科研、管理和对外交流等许多角。
校园网安全状况直接影响着学校的教学活动。在网络建成的初期，安全问题可能还不突出，但随着应用的深入，校园网上的各种数据会急剧增加，各种各样的安全问题开始困扰我们。互联网络的飞速发展，对校园网络中师生的生活和学习已经产生了深远的影响，网络在我们的生活中已经无处不在。但在享受高科技带来的便捷同时，我们需要清醒的认识到，网络安全问题的日益严重也越来越成为网络应用的巨大阻碍，校园网络安全已经到了必须要统一管理和彻底解决的地步，只有很好的解决了网络安全问题，校园网络的应用才能健康、高速的发展。我们应当全面考虑综合运用防火墙、加密技术、
防毒软件等多项措施，互相配合，加强管理，从中寻确保网络安全与网络效率的平衡点，综合提高校园网络的安全性，从而建立起一套真正适合学校计算机网络的安全体系。
当今时代的知识经济的产生和信息技术的发展及Internet的全球普及化都决定了网络将成为信息时代的主要工具。随着计算机网络技术的发展，网络已成为人们交流信息的重要平台。基于因特网的网上教学具有时效性、共享性、交互性和个别化等诸多特点，因此它有着传统教学模式无法比拟的优点。它打造了一种全新的教学模式，打破了传统教学模式在时间、空间上的局限，采用先进的教学手段和教学方法，大大提高了教学效率和教学效果，使教学活动上了一个新台阶。做好校园网络设计工作，是学校内部之间，校内和校外之间便捷沟通的关键。
21世纪校园网络的规模和应用水平将是体现学校教学环境和科研力量的重