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Campus network construction thesis

Campus network construction thesis

Maintenance of campus network network security needs to start from the construction of the network and network security design, through a variety of technical means, the campus network network construction, through the physical, data and other aspects of the design of the network security to improve the solution to the top policy, now I've put together a, thesis on the construction of the campus network, and I hope to help you. .

First, the school demand analysis

With the development of computer, communication and multimedia technology, making the network on the application of more abundant. At the same time in the multimedia education and management and other aspects of the demand for campus networks also put forward further requirements. Therefore, the need for a high-speed, advanced, scalable campus computer network to adapt to the current trend of network technology development and to meet the needs of all aspects of school applications. The popularization of information technology education has been more and more people's attention. School leaders, teachers and students have been fully aware of this, the school's future education methods and means, will be constructed on top of the development strategy of education information technology, by increasing the investment in information network education, networked teaching and learning, educational information services and distance learning services will become the future construction of the specific content.

Survey

There are several buildings in the school that need to be included in the local area network (LAN), in which the original computer classrooms will be integrated into the whole campus network. According to the school's requirements, the total number of information nodes will reach about 3000. The distribution of information nodes is relatively decentralized. It will involve libraries, laboratory buildings, teaching buildings, dormitory buildings, cafeterias, and so on. The main control room can be located on the first floor of the teaching building, the library, experimental building and teaching building for the information point intensive area.

Requirements Functions

The campus network must ultimately be a comprehensive information platform integrating computer network technology, multiple information management, office automation and information dissemination, and be able to effectively promote the existing management system and management methods, and to improve the quality and efficiency of the school office in order to promote the overall teaching level of the school.

Advancement of the school's overall teaching level.

Second, the design features

According to the campus network project, we should give full consideration to the actual situation of the school, focusing on the performance-price ratio of the equipment selection, the use of mature and reliable technology, for the school to design into a technologically advanced, flexible and available, excellent performance, scalable and expandable campus network. Considering the medium and long-term development plan of the school, it can adapt to the future development in the aspects of network structure, network application, network management, system performance and distance teaching, and maximize the protection of the school's investment. Schools with the construction of the campus network, can make full use of the rich online application system and teaching resources, play network resources **** enjoy, fast information, no geographic limitations and other advantages, the real integration of modern management, education technology into the school's daily education and office management. The specific functions and features of the school campus network are as follows:

Advanced technology

The use of Gigabit Ethernet technology, with a high-bandwidth 1000Mbps rate backbone, 100Mbps to the desktop, running a variety of current applications is more than enough, but also easy to cope with the application of the requirements of a period of time in the future and easy to upgrade and expand.

Network Interconnection:

Provide ISDN dedicated line access (or DDN) to realize the connection with various public ****networks;

Expandable remote dial-up access/dial-out,**** to enjoy the resources and release information. Application systems and teaching resources are abundant;

There is a comprehensive network office system and various application management systems to realize office automation and management informationization;

There is a comprehensive information platform centered on WEB database, which can be used for news dissemination, advertisements for enrollment, image publicity, classroom tutorials, lesson plan reference displays, data query, mail service and distance learning.

Campus Network Layout Structure

The campus is relatively large, with many buildings and a decentralized layout. Therefore, in the design of the campus network backbone structure should not only take into account the current practical applications to focus on, but also to take into account the future development needs. The backbone network is centered on the central control room, with several backbone switching nodes, including the central control room, laboratory building, library, teaching building, dormitory building. The central switch and backbone switch use gigabit fiber optic switch. Central control room to the library, the backbone of the campus network that is, the central control room and the teaching building, laboratory building, library, dormitory building all use 8-core outdoor fiber optic cable; building selection of imported 6-core indoor fiber optic cables and Category 5 lines.

According to the actual application of the school, with seven servers, the use of the following:

① 2 main servers: equipped with Solaris operating system, responsible for the management of the entire campus network, educational resource management. One of the servers is equipped with DNS service, which is responsible for the resolution of domain names in the entire campus network. The other server is equipped with an e-mail system, responsible for the entire campus network of various users of e-mail management.

② WWW server 1: equipped with Linux operating system, responsible for remote service management and WEB site management. WEB server is now more popular APACHE server, developed in PHP language, connected to the MYSQL database, the formation of a complete dynamic website.

③ electronic reading server 1: multimedia materials reading, query and file management;

④ teacher preparation server 1: teacher preparation, courseware production, data query and other file management and Proxy services.

⑤ 1 CD-ROM server: responsible for multimedia CD-ROM and video-on-demand services.

⑥ 1 library management server: responsible for library data management.

In full consideration of the future application of the school, the information nodes of the whole campus are designed to be about 3000. The total number of switches is about 50 or so, including 5 backbone switches with gigabit fiber optic interfaces. The original computer room through their respective switches to access the nearest main switching node, and with a multimedia teaching network. INTERNET access using a router connected to the ISDN program, you can also choose the DDN private line. Can ensure that the multi-user group of data browsing and downloading.

Four, network topology

Fiber-optic Ethernet technology is now the fusion of the two mainstream communications technology and development, that is, Ethernet and optical networks. It focuses on the advantages of Ethernet and optical networks, such as Ethernet is widely used, inexpensive, flexible networking, simple management, optical network reliability, large capacity. The high speed and large capacity of optical Ethernet eliminates the bandwidth bottleneck that exists between LAN and WAN, and will become a single network structure that integrates voice, data and video in the future. Fiber-optic Ethernet products can implement WAN communication services using Ethernet packet format with the help of Ethernet devices. Currently, fiber optic Ethernet can achieve 10Mbps, 100Mbps, and 1Gbps standard Ethernet speed.

Fiber-optic Ethernet devices are based on Layer 2 LAN switches, Layer 3 LAN switches, SONET devices, and DWDM. A number of companies have introduced specialized fiber-optic Ethernet switches that have a variety of features to maximize quality of service (e.g., enabling packet classification and congestion management, etc.). Such products may require the following key technologies and performance: high reliability, high port density, quality of service assurance and other features.

Fiber-optic Ethernet services are more cost-effective than other broadband access, but until now their use has been limited to office buildings or clusters where fiber has been laid. The strategic value of this new approach to using Ethernet goes beyond cheap access. It can be used for both the access network and the local backbone in the service provider's network. It can be used exclusively at Layer 2 or as an efficient way to implement Layer 3 services. It can support IP, IPX, and other legacy protocols. In addition, because it is still essentially a LAN, it can be used to help service providers manage the enterprise LAN and the interconnections between the enterprise LAN and other networks.

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