校园网升级改造的分析、设计与实现

【作者】 黄劲荣；

【导师】 李振坤；

【作者基本信息】 广东工业大学 ， 软件工程， 2005， 硕士

【摘要】 实施教育信息化工程是国家面向21世纪教育振兴行动的重大举措之一。现代高等教育以信息化、网络化的教育手段取代旧有的不适应现代教育的落后手段,实现网络教学、远程教学、教育资源共享,形成无围墙的大学。校园网的建设不仅为高校科研、管理工作提供了快捷方便的信息服务,而且实现了教育时间和空间、教学内容、手段和形式的进一步开放,使高等教育以现代化手段加快满足国家经济建设和社会发展对高层次人才的增长需求。许多高校都建设有校园网,且不断地升级改造,如何能够抓好这项建设,使校园网建设保持先进稳定,进一步发挥校园网的作用,是摆在我们面前的一个重要课题。 本文是以“广州医学院校园网络升级改造”的实际工程建设为背景,研究了校园网建设的关键技术。通过对原校园网络进行分析,根据需求和校园网建设的原则,用网络系统工程的思想,对校园网络系统工程进行整体规划,提出了广医数字校园的总体框架及分步实施意见。详细论述了在网络工程升级改造方面进行的网络技术选型(包括主干网设计和分布层/接入层设计)、内部网段的划分、虚拟网VLAN设计、防火墙设计、出口线路设计及设备选型,对原有校园网络基础平台进行了升级改造,提升了主干网的档次及与Internet互联的速度以及校园网的安全,拓展了校园网信息覆盖点,为实现数字化校园提供了较先进的网络基础平台。同时,对校园网的信息应用系统(包含教育行政管理服务和教学应用服务两大功能模块)进行了总体规划和系统设计,为学院今后信息发展做出了探索研究。另外,提出了下一阶段的主要工作任务。更多还原

【Abstract】 The enforcement of the information-based education project is one of the great actions for our country’s 21st century educational development. Modern higher education replaces the outdated means that do not meet the requirement of modern education by means of networked education, realizing network teaching , distance learning , educational resource-sharing. The construction of campus network has not only offered swift and convenient information service for university’s scientific research, management, but has realized the opening of education in time, space , content of courses , and teaching device, and has made higher education accelerate meeting the growth demand to high-level talents of national economic construction and social development by modernized means. A lot of universities have built campus network, and is upgrading and transforming them constantly. How can we do a good job of this construction to make campus network built and kept the advanced stability and play the role of campus network better is an important subject in front of us. This article is based on the actual engineering construction on "GuangZhou Medical College’s (GZMC) campus network upgrade and transformation". I have studied the key technology of campus network construction. By analyzing the original campus network, according to the demand and the principles of the campus network construction, we carry on the overall plan to the network system of the campus, and put forward the suggestion of the enforcement of GZMC’s digital campus. It expounds the fact in detail that upgrading and transforming the network by technology selecting type (including the design of backbone and distributed layer / inserted layer), dividing inside network, designing the virtual LAN, firewall , output circuit and selecting the type of equipment. We upgraded the original campus network platform and the speed of connection of Internet and tightened the security of campus network. In addition, we expanded the coverage of campus network information nodes, offered more advanced network basic platform for realizing the digitized campus. Meanwhile, we carried on master plan and design systematically on the application system of campus network(including educational administrative service module and teaching application service module ). We explored and studied the information development in the future for GZMC. In addition, this article proposed the main task for the next stage.更多还原