| 摘要: |
| 软件定义网络(software-defined networking,简称SDN)技术分离了网络的控制平面和数据平面,为研发网络新应用和未来互联网技术提供了一种新的解决方案.综述了基于OpenFlow 的SDN 技术发展现状,首先总结了逻辑控制和数据转发分离架构的研究背景,并介绍了其关键组件和研究进展,包括OpenFlow交换机、控制器和SDN技术,然后从4 个方面分析了基于OpenFlow 的SDN 技术目前所面临的问题和解决思路.结合近年来的发展现状,归纳了在校园网、数据中心以及面向网络管理和网络安全方面的应用,最后探讨了未来的研究趋势. |
| 关键词: OpenFlow 未来互联网 控制器 虚拟化 软件定义网络 |
| DOI：10.3724/SP.J.1001.2013.04390 |
| 分类号: |
| 基金项目:国家重点基础研究发展计划(973)(2012CB315806); 国家自然科学基金(61070173, 61103225); 江苏省自然科学基金(BK2010133) |
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| Research on OpenFlow-Based SDN Technologies |
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ZUO Qing-Yun, CHEN Ming, ZHAO Guang-Song, XING Chang-You, ZHANG Guo-Min, JIANG Pei-Cheng
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College of Command Information Systems, PLA University of Science and Technology, Nanjing 210007, China
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| Abstract: |
| The control and data planes are decoupled in software-defined networking, which provide a new solution for research on new network applications and future Internet technologies. The development status of OpenFlow-based SDN technologies is surveyed in this paper. The research background of decoupled architecture of network control and data transmission in OpenFlow network is summarized first, and the key components and research progress including OpenFlow switch, controller, and SDN technologies are introduced. Moreover, current problems and solutions of OpenFlow-based SDN technologies are analyzed in four aspects. Combined with the development status in recent years, the applications used in campus, data center, network management and network security are summarized. Finally, future research trends are discussed. |
| Key words: OpenFlow future Internet controller virtualization software-defined networking (SDN) |
