What is a Virtual Private Network?

The concept of virtual private network is not the same as the VPN business in the industry. The new Telecommunications Business Classification Catalogue explains this classification as follows: Domestic Internet virtual private network service (IP-VPN) refers to the service in which the operator utilizes its own or leased public Internet network resources and adopts the TCP/IP protocol to customize the Internet closed user group network for domestic users. This interpretation of the classification emphasizes two features, the use of Internet network resources and the adoption of the TCP/IP protocol. This interpretation corresponded to the market situation at the time, when the focus was on interconnection-based IPSec?VPNs, and while the interpretation could largely cover the later-emerging SSL?VPN model, it did not focus on MPLS?VPNs.In 2017, the Ministry of Industry and Information Technology issued the Notice on Cleaning up and Regulating the Market for Internet Network Access Services, which stated that in recent years, network information technology is changing rapidly, cloud computing, big data and other applications are booming, China's Internet network access services market is facing a rare opportunity for development, but the beginnings of disorderly development have also emerged.