With the raging wave of Internet Plus, global free wireless roaming technology-based Eduroam（Education roaming) used for academic exchanges has received extensive attention. In this paper, the SDN (Software Defined Networking) and NFV (Network Function Virtualization) technology architecture  and Eduroam wireless roaming authentication mechanism are analyzed, SDN/NFV-based virtualized and fine-grained authorization model proposed, and the SDN/NFV technical architecture-based Eduroam realized, thus providing references for colleges and universities deploying Eduroam in cloud platform and SDN network.
SDN, NFV, Eduroam, Authorization model.
 L. Chen, D. Xiaodong, C. Wei and C. Weiqiang, “Thoughts and practices about SDN and NFV,” Telecommunication Science, vol. 8, pp. 23-27, Aug 2014. DOI: 10.3969/j.issn./1000-0801.2014.08.004.
 Y. Yanting, “Roaming around the world,” China Education Network, vol. 8, pp. 14-15, Nov, 2015. DOI: 10.3969/j.issn.1672-9781.2015.11.008.
 Z. Huiling, S. Fan, “Development and challenge of SDN/NFV,” Telecommunication Science, vol. 8, pp. 13-18, Aug 2014. DOI: 10.3969/j.issn.1000-0801.2014.08.002.
 G. Xuxiao, F. Zhongnan and C. Jie, “Research on technology of wireless roaming authentication and authorization based on eduroam and SDN,” China Higher Education Institute of Education Information Technology Branch of the Twelfth Academic Year, 2014. DOI: 10.3969/j.issn.1000-5641.2015.z1.026.
 Z. Hanjie, “Shared Eduroam alliance wireless network service,” China Education Network, vol. 8, pp. 18-20, Nov, 2015. DOI: 10.3969/j.issn.1672-9781.2015.11.010.
 Z. Chaokun, C. Yong, T. Heyi and W. Jianping, “State-of- the-art survey on software-defined networking (SDN),” Journal of Software, vol. 26, no. 1, pp. 62-81, Mar 2015. DOI: 10.13328/j.cnki.jos.004701.
 Z. Qinyun, C. Ming, Z. Guangsuo, “Research on OpenFlow-based SDN technologies,” Journal of Software, vol. 05, pp. 1078-1097, May 2013. DOI: 10.3724/SP.J.1001.2013.04390.
 Y. Chen, L. Yong and J. Depeng, “Failure recovery mechanism of SDN controller based on REST-API,” Computer Engineering, vol. 41, no. 9, pp. 211-216, Dec 2015. DOI: 10.3969/j.issn.1000-3428.2015.09.023.
 X. Haiqiang and Z. Hao, “Network Function Virtualization and Standardization,” ZTE Technology Journal, vol. 2, pp. 30-34, Apr, 2015. DOI: 10.3969/j.issn.1009-6868.2015.04.010.
 Z. Peng, “Three network innovation technology focused metropolitan area network optimization,” Communications World, vol. 41, pp. 43, Aug 2013. DOI: 10.3969/j.issn.1009-1564.2013.26.055.