The rise of Internet cafes, is undoubtedly for the IT industry has brought huge market opportunities, the industry can not be denied to solve the hundreds of millions of of Chinese netizens for knowledge, information, entertainment needs. Nowadays, the number of Internet cafes has sprung up, and many investors have put their eyes on the Chaoyang industry, which is full of opportunities.
An Internet café, from the preparation to the normal operation, is not a matter of overnight, but need to start from a number of aspects of planning and preparation. One of the most important, but also a relatively large part of the workload is the technical aspects of the design, implementation, as well as adjustment and optimization, so that the Internet café has an excellent "hard environment" to enhance the fundamental competitiveness. "Hard environment" refers to the Internet Café "network environment", "Hardware Device Configuration", "Software selection and optimization" of these three basic aspects.
The main purpose of this article is to expound the basic knowledge of these three aspects and the various problems that should be paid attention to, and the author uses the "flow chart" to visualize these three aspects and the various details, as well as their planning and implementation. As for each detail detailed technical knowledge and implementation method will be introduced in future article types.
First of all, using the following "flowchart" to visually explain the various aspects involved in the construction of Internet cafes: (Next will be the "flowchart" of the various details of the basic introduction, so that the Internet café investors understand in these areas need to understand the basic knowledge and precautions. )
Internet cafes began to build, in addition to obtain the relevant departments issued a variety of licenses, on the other hand is the definition of Internet cafes business model. This aspect is directly related to the scale and economic investment of the initial stage of Internet café construction. The business model and the basic economic investment can be determined to start the "hard environment" planning.
The planning of the network environment. Network environment (mainly refers to the LAN environment and WAN Access) directly affects the overall performance of Internet cafes, in other words, is directly related to the source of Internet cafes and economic benefits. Therefore this aspect is in "hard environment" the most important and the workload is relatively highest. Because, once the network environment is determined and the construction is completed, it is not possible to make changes in the short term. Its construction period and the overall decoration of the Internet café is basically in the same period, if the future in the comprehensive test found that the network environment bottlenecks and instability factors, these will undoubtedly make the overall planning of the previous big loss of nature, and thus can not play the overall performance of various equipment. Therefore, it is very important to design the most reasonable scheme in the network planning, and to carry out the project implementation and the purchase of equipment according to the rigorous and normative program.
A The network access rate is critical for Internet cafes. Now the network game, network film and television, instant messaging software, and so on, and so on the requirements of the network more and more high, these are not the same as the speed of the WAN is closely related. According to Beijing, the current network of most Internet cafes access rate is in 20m/bps, some Internet cafes will be increased or decreased, but the lowest is not less than 10m/bps. Because in the Beijing area examination and approval of Internet cafes regulations, the average number of Internet cafes are not less than 80 units, 10m/bps WAN access rate for 80 terminals of Internet cafes can only be adequate. It is understood that in other cities in China, the access rate of the WAN can be reached 100m/bps or higher. Beijing area is restricted by the cost of access and other factors, so the access rate of this kind can not be reached at present. According to the author's experience, about 300 of the size of Internet cafes, access rate reached 20m/bps (Beijing area as the standard), should be basic to meet the needs of day-to-day operations. If capital investment is unrestricted, the rate of access will certainly be greater as well.
b Domestic ISP currently only Netcom and telecom two, other types of ISP companies will eventually be connected to the backbone of Netcom or telecom network, or some areas of ISP companies do not have their own lines, directly leased Netcom or telecommunications lines for the access business. Therefore, the author believes that the Internet Café ISP choice is straightforward, not internet cafes is telecommunications, or two of the line at the same time, this can be very good to improve the performance of network games and WAN connection speed. For Beijing, due to mandatory regulations, the Internet bar industry wide-area network access only "telecommunications" an ISP provider (Beijing local ISP company, its backbone network access to telecommunications and netcom). It is understood that "telecommunications" also provides netcom and telecom different backbone network access, but the price of access seems difficult to discuss.
C The design of LAN environment. First of all to clear the number of Internet café terminals, then further planning of Internet cafes LAN. At present, most of the LAN extension form of Internet cafes uses "expand Star" connection, this kind of connection way in the implementation is relatively easy, and maintenance relatively simple. Again, the current LAN types of Internet cafes are mostly "Fast Ethernet", that is, the 100m/bps network connection rate. There are a few internet cafes into the "G-bit Ethernet" era, the LAN connection rate using a full 1000m/bps connection, there is no doubt that this type of LAN can greatly enhance the overall performance of Internet cafes, thereby enhancing competitiveness, but also relatively high in capital investment. From this point of view, the Internet café investors should be based on the location of their own Internet cafes and actual needs to determine the basic design of the network environment. The author thinks, from the core Exchange to the edge Exchange uses "the G-bit Ethernet" connection, from the edge Exchange to the desktop terminal uses "The Fast Ethernet" connection, this kind of local area network establishment way may satisfy the investor network performance request, simultaneously also may save the many funds investment.
D Network equipment acquisition. Network equipment mainly includes: routers, core switches, edge switches, network connection cables. The following is a brief introduction of the relevant knowledge of these equipment and the application to the Internet café there is a bit and inadequate.
Router Brand: CISCO 3COM into D-link, Ruijie, flying star, etc.
Cisco and 3COM These are international brands, reliable performance, mature technology but the price is relatively high. D-link, Rui Jie, etc. are domestic or independent development of the production of the brand, there are specific to the characteristics of Internet cafes related products, targeted, a variety of features easy to achieve, the price is relatively low. For example, Cisco router, powerful, outstanding performance, occupy the position of the industry boss did not say, but these products for the Internet café performance will not be too big embodiment, and its configuration and maintenance need professional knowledge is very strong related technical personnel, operation and management method is more cumbersome and difficult to master, This is the application of Cisco products in the Internet café industry deficiencies. In contrast, Flying fish star, Rui Jie and other domestic brands in the above issues have a good performance. These manufacturers are aimed at the characteristics of the Internet bar industry to produce targeted products, are basically Chinese management and configuration, operation and management of many, this is a weak technical support for Internet cafes industry has shown a major selling point. The second is the price of these products, compared with cisco,3com similar products will reduce a lot. In addition, there are many internet cafes in the way of software routing to replace the hardware router. That is, installing software and operating systems such as router OS or Linux on a single computer to implement routing functions in this way. The author thinks, this kind of soft route is high to the request of the technology, moreover it does not have the good maintenance mechanism, the stability aspect also cannot guarantee, therefore the net bar operator must choose cautiously. However, in a network with Netcom and telecom dual-line WAN access to the Internet, the use of soft routing can easily achieve the two lines of automatic switching and Policy routing, and relative to the hardware routing in the operability of more advantages. I now understand that some domestic brand routers, such as Ruijie, Flying fish star, etc. also on the dual-line access to the solution and related products, the specific performance of how the author does not know much is not detailed.
Core Switch Brand: CISCO 3COM to D-link netgeat Tp-link
The choice of core switch is still better branding. Will generally choose cisco,3com and other well-known brands. In particular, the interruption of Internet cafes more than the case, the core switch performance will directly affect the overall security and stability of the Internet bar. Selecting a core switch requires attention to some of the following features and parameters: Backplane bandwidth, number of MAC address records, data forwarding, whether to support port mirroring, whether to have network management function, whether to support VLAN, as well as port number, port rate, stacking and cascading and so on. The author learned that some internet cafes will purchase a three-tier switch, using this to replace the router and the core switch, but also to improve the expansion of the VLAN performance. But the author thinks, if the Internet Café Terminal node is not many, and have no urgent VLAN demand, at this time still do not choose three layer switch for good, after all, the network stability is especially important to the daily operation of Internet bar.
The choice of edge switch can not do too many requirements, in addition to comparing the brand and price is to understand the backplane bandwidth, port number, port rate and other related information. Here is a formula that calculates the standard backplane bandwidth of a switch, and the value of the backplane bandwidth of each qualified switch should not be lower than the value calculated by the formula.
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