The China Next Generation Internet (CNGI) was launched in 2003 as the initial IPv6 project in Mainland China and the largest pure IPv6 Internet in the world. Technically, the CNGI is capable of implementing network addressed based on real IPv6 source addresses, meaning that it can find real locations through a user's IP address. It is also capable of tunnel technology, which means running and using IPv4 applications in an IPv6 environment. China deployed IPv6 networks in conjunction with the 2008 Beijing Olympics and the 2010 World Expo in Shanghai. Based on the latest technology developed by China's next-generation Internet demonstration project, this book comprehensively analyzes next-generation Internet networking scenarios and typical networking solutions, offering a holistic description of the most up-to-date directions and typical technical solutions in Internet technology. It also discusses the China Broadband Strategy and its relationship with the next-generation Internet.