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Introduction
Online learning has become an important tool for higher education. Through online learning, universities can provide students with extreme flexibility while at the same time extending their courses to non-traditional and remote students.
Research is the core task of the university. The Internet can promote collaboration and help people exchange ideas and information. Therefore, more and more research work began to be transferred to the Internet, because students and teachers have access to a large number of resources within the school and around the world.
Components of Educational Network
In order to support the next generation of applications, most colleges and universities will need to upgrade their LAN. At the most basic level, they need to upgrade from shared concentrator technology to a switched infrastructure. Many campuses also need to use faster and more intelligent technologies, such as Fast Ethernet or Gigabit Ethernet. In addition, colleges and universities may need to integrate wireless technology into their environment to improve user mobility and LAN accessibility. The following describes the steps that colleges and universities currently need to take to create a powerful, high-performance LAN. By completing the deployment of this function, the educational tasks of educational institutions will be able to quickly develop to a new level.
Opportunities to generate income–Universities can earn income from campus network services by allowing students to purchase optional, faster services or add links to local businesses.
Network design example
University network
Even if a simple infrastructure has been adopted, the university can use a hierarchical switching architecture to intelligently manage users, servers, and connections to the outside world. As shown in Figure 3, high-performance, high-availability Layer 3 switches can manage the core functions of the network and ensure a backbone network with the best performance.
Individual or stacked desktop switches may be connected to the third-tier switches in a star manner to provide access solutions for traditional user base stations in fixed locations. For classrooms and other locations that require flexible connection methods (such as libraries, dormitories, laboratories, and offices), only one connection line to the wireless access point can be installed instead of multiple cables connected to fixed base stations. In this way, the school can flexibly use the laptop computers distributed in each classroom, each of which is within the coverage of the access point, and they can also change the configuration of the classroom easily and quickly without changing the layout of the circuit. .
Figure 1 Example of university departmental network design
High-performance deployment
More complex campus networks can gain more benefits from the same hierarchical switching architecture and wireless coverage. As shown in Figure 4, a T1 line at the management level can effectively provide Internet connections for multiple schools, so that schools do not need to pay related fees every month. It can be connected to a new building or location through traditional wiring methods (used for buildings that are very close), or it can be deployed with a point-to-point or point-to-multipoint solution that is visible to the naked eye to cover longer or Shorter distances (covering 15 miles at a rate of up to 11Mbps, or 25 miles at a rate of up to 5.5Mbps), or crossing obstacles such as rivers or highways. The investment in a visible LAN connection can be recovered within three to four months. In contrast, if a traditional T1 connection is used, a high monthly cost will be required.
One or more Layer 3 switches can provide a high-performance core layer. Stackable second-tier desktop switches can be deployed at the access points of each network segment. You can set up multiple access points in the network to expand the coverage of the wireless network so that users can roam. A network with high availability, integrated management and security can support all emerging next-generation applications and technologies. The hierarchical structure can simplify the deployment of wireless networks in places where flexible connections are required or where connection configurations need to be changed frequently.
Figure 2 Schematic diagram of the high-performance network design of the entire university
Student network
Building broadband solutions can use Ethernet, LRE and wireless infrastructure equipment to provide students with high-speed broadband access throughout the campus environment.
As shown in Figure 3, the switch provides connections for older classrooms and dormitories that use Category 1, Category 2, and Category 3 cables. The equipment is located in each classroom or dormitory and is used to bridge LRE and Ethernet connections. A wireless access point can be connected to the device to provide a connection for laptops, laptops, or PDAs in the classroom. The library is a relatively new building that uses Category 5 cables. It uses 10/100/1000 switches to provide dedicated connections for students. The library also provides wireless access for students who like mobile Internet. Schools can provide connections for outdoor students and teachers through WLAN access points.
The network is centralized to a layer 3 switch through wireless or switched connections. The BBSM server can provide a powerful service creation platform, which can provide a variety of broadband services to meet the needs of different students.
Figure 3 Schematic diagram of student network
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