China-VO(Virtual Observatory) uses cloud computing technology to integrate the geographically distributed computing, storage, data and software resources, and provides cloud virtual machine, cloud storage and astronomy data search service to astronomers.This is an astronomy cloud computing environment.Internet is the key infrastructure, which decides the user experience.Because of the insufficiency of network address, network bandwidth limitation, many astronomy cloud service, such as cloud desktop service, are difficult.Internet Protocol version 6 (IPv6) is the next generation network protocol, which has obvious advantages in network address allocation, routing and service quality compared with IPv4.In order to support IPv6 network, direct connection IPv6 network schema and truck IPv6 network schema were designed in the astronomy cloud computing environment.The test results show that, using the IPv6 network can improve the network speed by 10 times.
China Virtual Observatory (China-VO)cloud computingastronomical cloud computing environmentVirtual Machine (VM)Internet Protocol version 6 (IPv6)port forwarding