What does the Hong Kong vps server gia+CN2+BGP line mean? I believe many people have heard of the BGP line. There are also similar CN2+BGP, such as the US CN2+GBP, Hong Kong CN2+BGP, etc. So what does BGP mean here? What does CN2+BGP mean? Which is better, CN2+BGP or CN2 GIA? What should we pay attention to when choosing a Hong Kong vps server cn2+BGP VPS?
　　The actual effect of using different bandwidth lines of Hong Kong vps is different. Generally, the key lines of the overall target are divided into two types, namely the direct CN2 line and the international BGP line. The following Internet data will briefly introduce the differences between foreign Hong Kong vps, CN2 lines and international BGP lines.
　　1. What does CN2+BGP line mean in Hong Kong vps?
　　First, let's explain the difference between CN2 Hong Kong vps and BGP line Hong Kong vps:
　　Hong Kong vps CN2 line: China Telecom's bearer network based on MPLS technology has unparalleled advantages in terms of network bandwidth guarantee and latency, and CN2 has a dedicated network from Hong Kong to the mainland, which is independent of ChinaNet's line, so using CN2 Internet to browse overseas networks is very fast.
　　Let's explain what BGP Hong Kong vps is:
　　BGP's full name in English is Border Gateway Protocol, and its Chinese name is Border Gateway Protocol. It is a routing protocol used to connect independent systems on the Internet. The computer room that uses BGP to achieve dual-line interconnection or multi-line interconnection is called BGP computer room. Simply put, BGP lines refer to the computer room connected to major network operators such as China Telecom, China Unicom, and China Mobile, and interconnected through the BGP protocol. If the user is in a China Telecom network environment, the China Telecom line is connected, and if the user is in a China Unicom network environment, the China Unicom line is connected, so as to reduce latency and increase speed:
　　When the China Unicom line fails, China Unicom users can automatically switch to the China Mobile line or China Telecom line with low latency when accessing the VPS to ensure that users can access normally:
　　If CN2+BGP is not specified as CN2 GIA, it is generally CN2 GT, and it is not necessarily bidirectional CN2 GT. Some merchants may have a little bit of CN2. For example, the outbound lines of China Telecom in some areas are connected to CN2 GT, and they call their lines CN2+BGP. Then how many CN2s there are depends entirely on the conscience of the merchants. For the introduction of return, outbound and bidirectional, please refer to: "What is outbound CN2 GIA? What is return CN2 GIA? What is bidirectional CN2 GIA?"
　　Hong Kong vps international BGP international line: a line composed of several nodes such as Hong Kong data center, Singapore, Japan, South Korea, etc., which is to speed up the opening speed and interoperability of websites in Asia and other regions.
　　II. Points to note when choosing CN2+BGP line for Hong Kong vps
　　The above introduces what CN2+BGP line is. Here is a brief reminder of the points to pay attention to when choosing CN2+BGP line. There are mainly two points to note:
　　CN2+BGP, what exactly is CN2, which network operator of Telecom/Mobile/Unicom is CN2, is it CN2 GT or CN2 GIA, is it outbound CN2, return CN2 or bidirectional CN2?
　　BGP is actually not a synonym for any high-end line. Direct-connected VPS can basically be called BGP (personal opinion, please correct me if I am wrong), and it is even better than BGP VPS. Take a merchant's Korean CN2+BGP as an example. Telecom bidirectional CN2 GT, Mobile detour Hong Kong CMI, Unicom 169 direct connection, which is also Korean CN2+BGP, but how fast is the speed, you can only know it after the actual speed test.
　　Differences in security defense of vps Hong Kong gia+CN2+BGP lines:
　　Security protection of Hong Kong vps CN2 lines: The disadvantage of CN2 lines is that the Internet export bandwidth is relatively limited, so the high-defense server has poor working capacity.
　　Security protection of Hong Kong vps international BGP lines: At present, separate security protection is carried out based on Hong Kong, Singapore, Japan, South Korea and other regions, with strong DDOS attack protection capabilities, and the security protection of single international BGP lines is the greatest.
　　3. Comparison between CN2+BGP and CN2 GIA of vps Hong Kong vps server
　　The concept and purchase precautions of CN2+BGP have been introduced. It is not difficult to see that CN2 GIA is generally much better than CN2+BGP, especially many merchants say that any line is CN2+BGP. BGP has been introduced. In fact, it is a direct connection line. How many are CN2? This depends on the conscience of the merchant. When choosing a VPS, don't think that CN2+BGP is high-end. Two-way CN2 GIA and three-network CN2 GIA are much better than CN2+BGP
　　Advantages of Hong Kong CN2 line: CN2 line is mainly for the mainland. The access speed of mainland users is faster, and the delay is about 10-80 delays. It also solves the problem of data transmission between different ISPs. When accessing each other in the telecommunications network, China Unicom, Mobile and other Internet, it is faster and more stable. It is the best choice for some companies to transmit data and data connections around the world.
　　Disadvantages of vps Hong Kong gia+CN2+BGP line: CN2 line has poor defense and high price.
　　Hong Kong vps international BGP line
　　Advantages: Faster speed for the mainland, covers a wide range of the global Internet, and has high defense and high cost performance.
　　Disadvantages: Access from other regions will have a delay of about 100-200MS, covering a wide range of the global Internet but with a relatively slow speed. China Unicom and China Mobile do not have special lines, so the lines are not as convenient as the telecom network.