Access first pick Net

In the past two years, enterprises to surf the country in a vigorous expansion of the enterprise to provide access services operators and ISPs are also booming up, but all enterprises understand why to the Internet, to what network?

The greatest charm of the Internet is the global computer system connected together, the most important role of the Internet is the sharing of online resources, rich information on the Internet. Enterprises connected with the Internet is to strengthen the internal electronic communication and high-speed communication with the outside world, the main means is to establish their own e-mail systems and corporate Internet sites to improve the operational efficiency of enterprises. One of the most important purposes for enterprises to access the Internet is to use the abundant information resources on the Internet to provide business, scientific research and education assistance. In order to obtain these resources need to be connected with the Internet high-speed, enterprises need to pay the expensive access costs, at present more use DDN, ADSL, optical fiber access and other means, and the access mode to the development of high broadband.

The author has repeatedly recommended to the enterprise by DDN or Frame Relay way to access the Internet, analysis of the cost of various ways to compare the various Internet access mode of communication speed, the level of cost-effective. However, it is often overlooked in the domestic access to the Internet is the most important prerequisite, that is, the Internet is the Enterprise access network. To this end, enterprises should first understand the current domestic several major Internet status, as shown in the table below.

These several internet self-contained systems, they are in the domestic independent network, has its own backbone network. At present, the biggest problem between them is interconnection, several major networks only in local areas have interconnected nodes, such as Beijing's soap June Miao Internet Exchange Center is a few large network of the largest interconnection center, but because of its insufficient interconnection bandwidth, it caused a number of major Internet access bottlenecks.

How does this affect the access user? As a result, users of large networks will be significantly less able to access content on other networks. We can use an image metaphor to describe the interconnected status of several large networks, we can consider each relatively independent network as an independent city, each city may have a high-speed urban road system, the network access users like urban residents, the content of the network like the city's shopping malls, libraries and other resources, Then the city users access to the city's resources is convenient and quick, but if there is a problem in other cities, because there are only one way to connect several cities, and these paths are connected only through a small overpass, this overpass becomes the bottleneck of traffic between the cities, which is quite some of Mr. Qian Zhongshu's "Fortress Besieged" Taste, the city is difficult to come up with the city, outsiders to town to spend a lot of time on the overpass to see the scenery.

In the next few years, we believe that these "siege" between the high-speed traffic will certainly be improved, but the interconnection of major networks is still to be a while. In this situation, many users are in fact the most confusing, because the user access to the Internet is to enjoy the "network City" in the rich information resources, if they need information is not in the current access network, then the "city" to other networks, its speed can be imagined.

The author concludes the first principle of Internet access for users: In layman's terms, it is necessary to consider preparing to surround yourself in the "city", that is, choose which internet to access (which operator), to locate their own needs, ask yourself what kind of information resources most need, Access to the Internet with the appropriate resources according to the main requirements. For example, if the customer needs the highest quality educational academic resources and related content, it should be preferred to access the education network; If the business relies mainly on the E-commerce site on chinanet to complete it, then the preferred access chinanet. Of course, some customers may be dependent on the business information on a Web site, and to B online education resources can not give up, if the request for high-speed access to two networks, then the best way is to spend two of money, with two lines of access to A and B network, or to find a network and B network at the same time is a two-level ISP access provider, Access through this ISP is of course the most hassle. Of course, this ISP must have a, B two network formal authorization, and can technically guarantee the dual network access bandwidth, the current ISP is not many.

At present, the resources on the network of the operators are very different, such as Chinanet, Cernet and other veteran operators network resources rich and each has a focus, some new operators basic network quality is very good, to provide customers with broadband access, but because "city" resources may be relatively empty, such "network Cities" Only the wide streets without libraries, shopping malls and other resources, in a short period of time the user needs information in other networks. As a result, although customers are in the network are broadband access, but the speed of access to other networks is no improvement. The real broadband is the broadband basic network and rich content of the combination of easy to build network but the establishment of their own characteristics of the Web content is a long-term thing, there is no car is the current emerging broadband network operators face the biggest problem. In addition, whether the operator has an independent international export is also important, which determines the speed of customer access to foreign information resources.

In short, the enterprise first positioning access network is the fundamental principle, as to choose which ISP access through, what means to access, to how much bandwidth access, 64kDDN or 100M fiber, these are the next thing to consider.

Domestic major network resources list China Telecom's Chinanet
China Telecom operating chinanet is currently the largest Internet, domestic network nodes, high capacity of international exports, the network has the richest business information, the number of users in several major internet.

The cernet of the education system
China's earliest establishment of the Internet, network nodes rely on the country's thousands of institutions of higher learning, the entire network of users as high as 8 million, with the richest domestic education, scientific research, academia and its related commercial entertainment resources, at the same time have an independent international exports, visit foreign sites relatively fast.

The cncnet of China Netcom
China Netcom is an emerging telecommunications operator, committed to a new generation of telecommunications infrastructure, providing a full range of broadband telecommunications services. China Netcom to undertake the construction and operation of China Netcom Broadband high-speed Internet (cncnet) is the first application of IP/DWDM technology in China to build large-scale high-speed broadband network.

Giton's CHINAGBN
China Golden Bridge Information Network (CHINAGBN) is referred to as the Golden Bridge Network, is the national Public Economic Information Communication Network, is authorized by the State Council, one of several major internet. CHINAGBN implementation of the world of a network, that is, the Sky satellite network and the ground fiber network interconnection, mutual standby, can cover the national provinces and autonomous regions.

Unicom's Cnuninet
China United Communications Co., Ltd. was founded in July 19, 1994. China Unicom's establishment in China's basic telecommunications business areas to introduce competition, the reform and development of China's telecommunications industry has played a positive role in promoting, Unicom is responsible for the operation of Cnuninet.

China Science and Technology Network (cstnet)
is in the Zhongguancun area education and research demonstration Network and the Chinese Academy of Sciences Computer Network Foundation builds and develops the large-scale computer network which covers the whole country, the Chinese Science and Technology Network is non-profit, the public welfare network, is also the National Knowledge Innovation Project infrastructure. Mainly for the scientific and technological sectors, science and technology management departments, government departments and High-tech Enterprises services.