近年来，随着IPv4网络数据传输量的不断增长、IPv4网络链路资源紧张的矛盾日益凸显，网络协议地址空间不足、网络带宽受限等问题使得目前网络架构无法满足大规模天文数据传输对网络带宽的需求、难以保证观测数据以恒定速率传输。本项目拟采用充足的IPv6链路资源服务于天文数据传输，解决大规模天文数据传输需求对现有网络带宽不足的压力，并将提出一种基于软件定义网络（SDN）架构的大规模天文数据传输网络思想，构建SDN架构的网络，设计出天文数据传输智能路径选择算法，建成一个高效、安全、可靠、可动态调整且满足天文数据传输需求的网络。上述研究将服务于新疆110米射电望远镜观测数据的传输网络系统建设。

The project intends to adopt the IPv6 link resource service enough in the astronomical data transmission, to solve large-scale astronomical data transmission needs of the shortcomings of the current network bandwidth pressure, and will propose a software defined network (SDN) based on large-scale astronomical data transmission network architecture, the architecture of SDN network construction, design of astronomical data transmission intelligent path selection the algorithm, built an efficient, safe and reliable, can dynamically adjust and satisfy the demand of astronomical data transmission network. The project will be applied to the construction of the transmission network system of the observation data of Xinjiang 110-meter radio telescope.