This paper summarized the agreement and divergence about viewpoints of the next generation of network, then the reasons of divergence were analyzed. It pointed out that much attention should be paid to the researches on network architecture, including rethinking of End-to-End Argument, combining of packet switching with optical networking ,and evolution from UNI overlay architecture to unified NNI architecture. Finally, the importance of basic researches on the Internet, such as the network dynamics, is also put forward.