When choosing a server line, CN2 lines and BGP lines are two common options. Each of them has some characteristics and applicable scenarios. If your users are mainly located in China, it may be more appropriate to choose a CN2 line; if your users are more widely distributed, consider a BGP line. Here's a brief comparison of the two lines:

　　CN2 line

　　Features:

　　1. Optimize the network connecting to China: The CN2 line is designed to improve the quality of the network connecting to mainland China, and is especially suitable for network communications with China. It is connected through multiple submarine optical cables, providing lower latency and higher stability.

　　2. Reduce network congestion: CN2 lines can often alleviate problems caused by network congestion and provide more reliable connections, especially during peak hours.

　　3. Applicable to businesses that have an important impact on Chinese users: If your business goal is to serve Chinese users, the CN2 line may be a better choice because it can provide a more stable connection and a better user experience.

　　BGP line

　　Features:

　　1. Global coverage: BGP line is a global Internet line, suitable for businesses that need to communicate with users around the world. It connects to networks around the world through different operators and routes.

　　2. Flexibility: BGP lines provide greater flexibility and routing can be adjusted according to actual needs. This is very important for businesses that need to dynamically adapt to network changes.

　　3. Suitable for global business: If your business is mainly oriented to the international market, BGP lines may be more suitable because it provides wider coverage and greater flexibility.

　　how to choose:

　　1. Business objectives: If your business is mainly for Chinese users, or has higher requirements for the performance of Chinese network connections, then the CN2 line may be more suitable. If your business is global, a BGP line may fit the bill better.

　　2. Network topology: Consider the network topology where your server and users are located. If your users are mainly in China, CN2 lines may provide better performance. If users are spread across the globe, a BGP line may be more appropriate.

　　3. Budget: CN2 lines are generally relatively expensive, while BGP lines may be more cost-competitive. Consider your budget constraints and choose the line that best suits your business needs.

　　Generally speaking, choosing CN2 lines or BGP lines depends on your business needs and priority areas. If you have specific geographical and performance requirements, it is recommended to communicate with the server provider to understand its network architecture and make decisions based on actual conditions.