Detailed solution for designing a large Internet cafe Network System

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Detailed solution for designing a large Internet cafe Network System

A large Internet cafe is a system integration network with diversified applications and has strong pre-scalability. More and more large Internet cafes are or have established diversified networks.

I. Requirement Analysis:

The main goal of the construction of a large Internet cafe network system is to build a master network that runs Gbit/s and switches Mbit/s to the desktop; at the same time, an entertainment and Management Platform Supported by network technology, computer technology, and modern information technology is established within the scope of large-scale Internet cafes, develop the current game network-based activities to the multi-functional entertainment platform, to greatly improve the competition and profitability of Internet cafes, and build a first-class high-end Internet cafe, it lays a strong foundation for attracting high-end consumers.

According to this goal, the main objectives and tasks of a large Internet cafe network system are:

1. A standard network protocol is adopted within the jurisdiction of a large Internet cafe, and the Intranet of a large Internet cafe is established based on application requirements, and connected to the Internet through China Telecom's broadband network;

2. Establish a server group (including www, FTP, DNS, streaming media server, 16-channel cable TV broadcasting server group, SF, and various game battle network servers) Supporting entertainment activities on the intranet of large-scale Internet cafes), A processing system featuring information sharing, fast transmission, convenient use, and high efficiency;

3. provide paid sharing services for server group resources to small and medium-sized Internet cafes and fixed network customers as permitted by the market environment, try to provide integrated website solutions (such as space, domain name, website, database, and update) for small private enterprises in a small scope );

4. The system should have high reliability, security, maintainability and scalability, and should have a good user interface.

In the design process of this solution, the actual needs of large-scale Internet cafe construction are always the main reference. On the basis of fully understanding the application requirements of large-scale Internet cafes, according to the relevant technical routes and Construction Policies in network construction, the following scheme is finally designed.

Ii. Network Design Principles:

The construction of a large Internet cafe network system is a large-scale network project. Internet cafes need to formulate network design principles based on their actual conditions. In the network construction process of large Internet cafes, they follow the following network design principles:

1. practicality and economics

Due to the large one-time investment in Internet cafes and fast device depreciation, the current external operating environment is poor. On the other hand, the Internet cafe application environment is poor and the customer application level is uneven. Therefore, during the network construction process, the system construction should always adhere to the application-oriented and pragmatic principle, adhere to practical and economic principles.

2. Advancement and maturity

Currently, the computer network technology is developing rapidly, and devices are updated and eliminated quickly. This requires that network construction should adopt advanced concepts, technologies and methods in system design, and pay attention to the relative maturity of structures, equipment and tools. Only by adopting sophisticated and advanced technologies and equipment that currently comply with international standards can network networks be able to adapt to the needs of future network technology development and ensure they will take a dominant position in the next few years.

3. reliability and stability

Considering the advancement and openness of technology, we should also begin with the system structure, technical measures, equipment performance, system management, vendor technical support, and maintenance capabilities, ensure the reliability and stability of the system operation, and reach the maximum average fault-free time.

4. Security and confidentiality

In system design, both full sharing of information resources and protection and isolation of information should be taken into account. Therefore, the system should be designed for different applications and different network communication environments respectively, different measures are taken, including system security mechanisms and data access permission control.

5. scalability and maintainability

In order to adapt to the requirements of system changes, we must fully consider the simplest method and the lowest investment to achieve system expansion and maintenance. This service combines current advances, future scalability, and economic feasibility to protect previous investments and achieve a higher overall performance-to-price ratio.

3. network device Selection

Due to the wide variety of Internet cafe conditions and varied requirements on solutions, network equipment providers are required to have powerful network product and solution customization capabilities. In addition, Internet cafe funds are limited, therefore, there will not be much financial resources for network construction, which requires that network products must have an extremely high cost-effectiveness advantage. After comparing the performance and price of various network devices, the network of large Internet cafes is determined to adopt: three-layer central switch (with X Gigabit modules) + stack switch (with 1 Gigabit module) as the access layer network structure, it meets the performance, application, cost and other requirements of large Internet cafes.

Iv. Solution topology:

V. Solution description

1. network center equipment

The network device of the central data center uses a modular layer-3 switch, and flexibly selects different expansion modules as needed to implement various configuration combinations. In the future, you can use the expansion module to upgrade the network, it is easy to protect the existing network structure and investment. According to the needs of the existing network, the trunk switch with a routing module with three layer switching function, with 5 Gigabit Optical Fiber Module, with a 10/100 M Adaptive RJ-45 port module, for ease of management, a management module can be configured. servers can use 3-4 multi-cpu scsi disk raid professional servers and dozens of general computer DIY servers to form a server group; vro can use a modular router as the gateway and dial-in server for the Internet. One workstation for network management is installed with network management software for network configuration and management.

2. Level 2 switching device

A ge stack switch group is used to form a non-blocking star topology stack structure composed of a stackable switch host and a stackable switch slave, it can provide hundreds of 10/100 M Adaptive RJ-45 ports (depending on the specific equipment, the high-traffic network of Internet cafes to around 100 port as a virtual subnet is relatively stable ). Stack mode provides a high bandwidth.

Vi. solution features

This solution adopts the design concept of "Gigabit trunk lines, MB switching to desktop", and each backbone line is a m optical fiber. All the backbone products used support the 802.1Q standard VLAN and IGMP multicast protocol, all of which support network management to desktop. After the network is built, it can meet the business application requirements of Internet cafes and achieve the expected purpose. The backbone network is connected to the Internet through high-speed lines. In Internet cafes, the backbone network can communicate with each other through 1 Gbit/s and Mbit/s. The entire Internet cafe can achieve non-blocking communication. The network center can control access permissions and site browsing by dividing VLANs and binding MAC addresses. network devices support IGMP multicast and 802.1p priority protocols, it laid a solid foundation for the development of VOD, multimedia entertainment and other rich applications.

VII. Essays

This solution focuses on its network structure and server group during the design process, so that the two can work together to truly give full play to the advantages of Internet cafes, after the completion of hardware installation and debugging, whether the operation is successful has a lot to do with the construction of the server group. It is necessary to hire a first-class and high-tech real network manager with a high salary. Taking 500 Internet cafes as an example, creating a server group with 30-50 servers means that the monthly cost of tens of thousands of servers will not be too high for a first-class network administrator, it is important to effectively ensure the normal operation of the development, applications, and networks of various platforms on your server group (to ensure the enthusiasm of network management development, it is best to make the compensation and Internet cafe operating conditions through bonus sharing hook ). In fact, this is also a common problem of large Internet cafes. Most of them only pay attention to the number of clients rather than the content services of Internet cafes. It is only possible for medium and small Internet cafes to carry out a brutal price war, to a certain extent, the quality of the server group content can influence the price positioning of Internet cafes, the competitive environment, and the proportion of value-added services in total Internet cafe revenue. The reason is very simple: Internet cafes are like supermarkets, in general, small-and medium-sized Internet cafes are like the new village commissary, and their customer groups are located in nearby residential areas. Generally, customers also consume data in Internet cafes based on the "proximity principle; A key difference between Internet cafes is the sit-on rate! Living in a nearby area alone is not sustainable, and there must be a clear consumer hotspot like a large supermarket, giving customers the reason to "stay close and far away, today's big Internet cafes with high depreciation rates rely solely on price wars, making it difficult to compete in a favorable position ....

The following figure shows the topology of approximately 300 Internet cafes.
Topology Structure of approximately 300 Internet cafes: