FITI was constructed by 40 Chinese universities, based on Internet Protocol version 6 (IPv6) technology. IPv6 is a communications protocol that provides an identification and location system for computers on networks’ and routes’ traffic across the internet.

The core nodes of the high-performance backbone are distributed among the 40 universities in 35 cities across the country. FITI aims to provide users with physical layer, data link layer, network layer, transmission layer and application layer test services. The maximum bandwidth between core nodes of the FITI backbone network is 200 Gbps. FITI seamlessly connects to the global IPv4 and IPv6 facilities.

As of April 2021, China had the world’s largest number of IPv6 addresses. 

Xinhua news release, April 21, 2021