高校校园网出口升级改造方案的研究与设计
发布时间：2019-06-22 09:01
【摘要】：校园网作为高校信息资源传递的重要媒介,是教学、科研和信息化管理的重要平台。随着校园网中用户的增加和各种应用的不断增多,用户对网络的、稳定性和访问速度提出了更高的要求。而校园网出口配置和拓扑却直接影响网络的稳定性和用户访问公网的速度。因此,加强校园网出口的管理,对校园网出口进行升级改造已经迫在眉睫。 本论文重点研究高校校园网出口系统构建问题。论文分析了目前高校校园网出口系统普遍存在的问题,深入研究了解决这些问题的技术路线,并以河北某大学校园网出口升级改造为背景,给出了一个能较好地解决以上问题的设计方案。 论文重点研究了网络出口的路由选择、网络地址转换、域名解析、链路负载均衡、入侵防御、流量控制等系统的最新技术,并提出了一个完整的设计。在路由选择的设计中,采用策略路由、静态路由和默认路由相结合的方法来解决数据包的选路问题；在网络地址转换的设计中,采用PAT技术在防火墙和负载均衡设备上分别进行IP地址转换,解决了私有IP地址和教育网IP地址访问公网的问题；在域名解析系统的设计中,采用智能DNS技术,实现解析域名的智能化；在链路负载均衡的设计中,使用负载均衡设备,实现访问不同的资源选择不同的出口；在流量控制的设计中,通过对带宽的管理,限制P2P下载,使http、email等常用服务得到保障,同时进行分时段管理。 本设计方案已经在河北某大学网络升级改造中实施,完成升级改造的河北某大学校园网出口性能得到了极大的提升,教育网和本地ISP的资源优势被充分利用,实现了流量的多链路负载均衡,提高了网络的访问速度,网络安全性也进一步提高,为师生提供了一个良好的公网接入平台。
[Abstract]:Campus network, as an important medium for the transmission of information resources in colleges and universities, is an important platform for teaching, scientific research and information management. With the increase of users and various applications in campus network, users put forward higher requirements for network stability and access speed. However, the exit configuration and topology of campus network directly affect the stability of the network and the speed of users accessing the public network. Therefore, it is urgent to strengthen the management of campus network export and upgrade the campus network export. This paper focuses on the construction of campus network export system in colleges and universities. This paper analyzes the common problems existing in the campus network export system of colleges and universities at present, deeply studies the technical route to solve these problems, and gives a design scheme which can solve the above problems according to the background of the upgrading and transformation of the campus network export of a certain university in Hebei Province. This paper focuses on the latest technologies of network exit routing, network address translation, domain name resolution, link load balancing, intrusion prevention, flow control and so on, and proposes a complete design. In the design of routing, policy routing, static routing and default routing are used to solve the problem of packet routing. In the design of network address translation, IP address translation is carried out on firewall and load balancing device by using PAT technology, which solves the problem of private IP address and educational network IP address accessing public network. In the design of domain name resolution system, intelligent DNS technology is used to realize the intelligence of domain name resolution; in the design of link load balancing, load balancing equipment is used to access different resources to select different exits; in the design of flow control, P2P download is limited through bandwidth management, so that http,email and other common services can be guaranteed and managed in different periods. This design scheme has been implemented in the network upgrading of a university in Hebei Province. The export performance of the campus network of a university in Hebei Province has been greatly improved. The resource advantages of the education network and the local ISP have been fully utilized, the multi-link load balance of traffic has been realized, the access speed of the network has been improved, and the network security has been further improved, which provides a good public network access platform for teachers and students.
【学位授予单位】：云南大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.18
本文编号：2504431
[Abstract]:Campus network, as an important medium for the transmission of information resources in colleges and universities, is an important platform for teaching, scientific research and information management. With the increase of users and various applications in campus network, users put forward higher requirements for network stability and access speed. However, the exit configuration and topology of campus network directly affect the stability of the network and the speed of users accessing the public network. Therefore, it is urgent to strengthen the management of campus network export and upgrade the campus network export. This paper focuses on the construction of campus network export system in colleges and universities. This paper analyzes the common problems existing in the campus network export system of colleges and universities at present, deeply studies the technical route to solve these problems, and gives a design scheme which can solve the above problems according to the background of the upgrading and transformation of the campus network export of a certain university in Hebei Province. This paper focuses on the latest technologies of network exit routing, network address translation, domain name resolution, link load balancing, intrusion prevention, flow control and so on, and proposes a complete design. In the design of routing, policy routing, static routing and default routing are used to solve the problem of packet routing. In the design of network address translation, IP address translation is carried out on firewall and load balancing device by using PAT technology, which solves the problem of private IP address and educational network IP address accessing public network. In the design of domain name resolution system, intelligent DNS technology is used to realize the intelligence of domain name resolution; in the design of link load balancing, load balancing equipment is used to access different resources to select different exits; in the design of flow control, P2P download is limited through bandwidth management, so that http,email and other common services can be guaranteed and managed in different periods. This design scheme has been implemented in the network upgrading of a university in Hebei Province. The export performance of the campus network of a university in Hebei Province has been greatly improved. The resource advantages of the education network and the local ISP have been fully utilized, the multi-link load balance of traffic has been realized, the access speed of the network has been improved, and the network security has been further improved, which provides a good public network access platform for teachers and students.
【学位授予单位】：云南大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.18
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