As the scale of enterprise websites continues to expand, server hosting is increasingly favored by more and more webmasters. Enterprises only need to make corresponding configurations for the server and host it in the data center, and select the appropriate bandwidth and lines to ensure the server operates safely and stably. Bandwidth is chosen as either exclusive or shared based on the enterprise's needs. There are three types of lines: single-line, dual-line, and multi-line data centers. How to distinguish between single-line, dual-line, and multi-line server hosting? Based on years of working experience, Tianxia Data IDC provides a detailed answer to this question for everyone.

First, what is a single-line computer room? What are the advantages and disadvantages?

The commonly used lines in computer rooms are China Unicom lines or China Telecom lines. A single-line computer room refers to a computer room that is either connected to a China Unicom line or a China Telecom line, with only one line connected. The advantages of single-line computer rooms are large bandwidth, low price and higher defense. The disadvantage is the interconnection issue between the lines of China Netcom and China Telecom. When China Telecom users access the website of China Netcom or China Netcom users access the website of China Telecom, it is very slow.

Therefore, single-line data centers are mainly targeted at users with high bandwidth demands and those whose websites are subject to attacks, such as download websites and game websites that are prone to attacks. Or regional websites, such as users who are netcom users or telecom users.

Second, what is a dual-line computer room? What are the advantages and disadvantages?

The dual-line data center was developed to address the interconnection and intercommunication issues between the two major domestic networks (China Telecom and China Netcom). In fact, a dual-line data center is one data center with access to both China Telecom and China Netcom lines. Through the internal router Settings of the dual-line data center and the analysis of BGP automatic routing, it enables both China Telecom users to access China Telecom lines and China Netcom users to access China Netcom lines, thus ensuring rapid access for both China Telecom and China Netcom. Dual-line data centers are further divided into two types: one is dual-IP dual-line, and the other is single-IP dual-line.

The dual-IP dual-line implementation method refers to installing two network cards on one server. Connect the China Telecom network cable and the China Netcom network cable respectively, and set one China Netcom IP and one China Telecom IP. In this way, there will be two IP addresses on one server. It is necessary to add the routing table of China Netcom or China Telecom on the server to enable China Netcom users and China Telecom users to access from different lines respectively. The most prominent feature of dual-line dual-IP is its high speed and good north-south communication. The disadvantage is that the technology is not yet very mature and there are unstable situations.

2. Single IP dual line refers to setting one IP on the server, which is either a China Netcom IP or a China Telecom IP. Through routing devices, it is determined whether the data packets are sent through the China Telecom network or the China Netcom network to achieve a dual-line technology. This solution can also enhance the access speed of China Netcom users and China Telecom users, solving the problem of setting routes on the server for dual IP and dual lines. However, since the IP addresses used are those of China Netcom or China Telecom, the best route will not be automatically determined when accessing users send request data packets. The advantage of single IP dual lines is to achieve north-south intercommunication and fast access. The disadvantage is that the access speeds of China Telecom and China Netcom are not exactly the same.

Overall, the dual-line data center supports user access from all over the country and is suitable for websites targeting users nationwide, such as e-commerce websites and portal websites. The drawback is that the technology is rather complex, so the cost is high and the bandwidth is small.

Thirdly, what is a BGP server hosting center?

The single IP dual line implemented with the BGP protocol directly maps the IP of one line to the IP of the other line through the BGP protocol. When users access, the best route is automatically selected, thus eliminating the slow delay of different ISPs for users.

The BGP (Border Gateway Protocol) protocol is mainly used for interconnection between Internet AS (Autonomous Systems). The most important function of BGP lies in controlling the propagation of routes and selecting the best routes. Both China Netcom and China Telecom have AS numbers (autonomous system numbers), and most of the major network operators across the country are interconnected with their own AS numbers through the BGP protocol.

Advantages of using this solution for multi-line server hosting in the data center:

The server only needs to be set with one IP address. The best access route is determined by the backbone routers on the network based on the number of routing hops and other technical indicators, and will not occupy any system resources of the server. Both the uplink and downlink routes of the server can select the optimal path, so it can truly achieve high-speed single-IP dual-line access.

2. Due to the inherent characteristics of the BGP protocol, such as redundant backup and loop elimination, when an IDC service provider has multiple BGP interconnection lines, mutual backup of routes can be achieved. In the event of a failure on one line, the routes will automatically switch to other lines.

3. The use of the BGP protocol can also make the network highly scalable, allowing the IDC network to be interconnected with other operators, easily achieving single IP multiple lines and realizing all interconnected operations.

Fourth, what is a multi-line computer room? What are the advantages and disadvantages?

Multi-line refers to the process of automatically capturing the data from the user's source server through a buffer program on the network nodes of the backbone lines of different network operators such as China Telecom, China Netcom, China Mobile, and China Tietong, and then caching it on the servers of different network segment nodes. In combination with the network division resolution function of the intelligent DNS server, different network users can access the websites in the nearest network segment to them, thereby avoiding the impact on website access speed due to network issues.

Multi-line is implemented through CDN(Content Delivery Network), and the vast majority of CDN technologies are relatively mature on static websites, but not very mature for highly interactive websites such as full dynamic pages. At present, the CDN solution is mainly used as an auxiliary solution and needs to be combined with other dual-line solutions to achieve the best effect.

The above is an explanation of how to distinguish between single-line, dual-line and multi-line server hosting. From the above, we can see that each line has its own advantages and disadvantages. It is recommended to choose the server line according to the type and needs of the enterprise!