Internet Cafes ADSL Networking scheme

The network application of Internet bar should set advanced, multi-business, scalability and stability in one, not only to meet customers in the broadband network at the same time transmission voice, video and data needs, but also support a variety of new business data processing capabilities, high-speed Internet access, large data flow under the line, do not pause.

Below we will briefly introduce a more flexible scale expansion of the Internet café to build a plan

In the course of the last eight years ' development, Internet cafes this industry has been criticized, and the recent state in order to standardize the normal operation of Internet cafes, guide the healthy development of the industry, has been in the policy of large and medium-sized Internet cafes to support the unified management, so now the size of the Internet cafes and development trend is basically to go large-scale, regularized line. And the Internet café of this kind of operation route, decided its own must have the high speed, the stable, the safe network system can maintain the good development. (Computer science)

Below we will briefly introduce a more flexible scale expansion of the Internet Café construction Program:

Requirements Analysis:

Internet Café is a special environment in the network application. The nodes in the Internet bar often at the same time in the browsing, chatting, downloading, video on demand and online games, data flow is huge, especially the export flow, to Internet cafes consumption of Internet users, the need for different, application is very complex.

The network application types of Internet cafes are very diverse, which has higher requirements for network bandwidth, transmission quality and network performance. Network applications to set advanced, more business, scalability and stability in one, not only to meet customers in the broadband network transmission of voice, video and data needs, but also support a variety of new business data processing capabilities, high-speed Internet access, large data flow under the line, do not pause.

This application requires network equipment has a wealth of Internet cafes features and balance and high stability and reliability, to ensure long-term uninterrupted stability, and simple configuration easy to manage easy to install user interface friendly and understandable, and to have excellent cost-effective.

Access scheme:

In many Internet access ways, the operators of Internet cafes usually choose DDN and ADSL,DDN now naturally less cost-effective than ADSL, and ADSL through multiple WAN Port bundle technology is very easy to achieve low-cost, high bandwidth, if the larger Internet cafes, the speed requirements are higher, With the support of 4WAN multiple-channel bundle, and choose a different ISP, it is easy to achieve a variety of Web site high-speed browsing.

Solution:

Can be large in size, flexible configuration. Equipment selection is also very flexible, there are a variety of equipment to choose from. Scale can be adjusted to the actual arbitrary, relevant technology is very mature.

The network topology map is as follows: (Figure I)



Figure 1

Programme description:

Cisco Cisco 1700 series Router selection, stable performance, high reliability. The delay is small, the speed is fast, the cost is low, conforms to the Internet bar the speed demand, if uses 1700 to configure the printer without having to configure the print server separately. The Internet Café Workstation adopts high-performance 8139D 10m/100m Adaptive Network card, which can meet the requirements of network gamers.

The server part uses the Gigabit Ethernet switch, satisfies the game data traffic demand. General Switch Selection In addition to the listed models in the figure, according to the actual situation of the flexible choice of com-sf2224p-au intelligent switch, or com-sf1024/1016, such as the two-speed switch.

LAN through ADSL Internet, high performance, low price. For large internet cafes, due to the number of nodes in the network, the data flow is larger, at this time can be applied to multiple ADSL line to upgrade the speed of the Internet (as shown above 2), but also to improve the stability of the entire network reliability, a certain backup role. Science and technology network equipment more varieties, stable performance, users can start from the actual needs, according to network demand, flexible selection.

Programme features:

According to the actual needs, the flexible control of different users in the LAN to the Internet different access rights;

Built-in firewall, no special firewall products, you can filter out all the exception packets from the outside to protect the internal LAN information security;

Integrated DHCP server, all computers in the network can automatically get TCP/IP settings, eliminating the trouble of manually configuring IP addresses;

Flexible scalability, according to the actual number of computers connected to the use of switches or hubs for the corresponding expansion;

Economical and simple to use, remote configuration of routers can be done via web browsers (Netscape or Internet Explorer) of Web users.

Please note: In theory, Cisco 1700 can connect up to 255 clients maximum. However, considering the number of connections, its processing capacity will cause bottlenecks, while the network speed will also be affected (after all, an ADSL can not connect too many clients). The number of connected clients is usually less than 100, with 70~80 as the optimal configuration. In this way, it can not only ensure that the network speed is not affected, but also make full use of resources and save capital investment.