刘爱兵,吴静,吴兆阳,江昊

• 1:武汉大学电子信息学院
• 2:航天恒星科技有限公司

摘要(Abstract)：

随着SDN的兴起,许多基于SDN的天基网络架构被提出,但这些架构没有考虑突发情况对网络拓扑的影响以及LLDP的合理使用。针对以上不足,提出基于拓扑预测与LLDP控制的天基网络路由方法。该方法采用基于SDN的网络架构,在正常情况下关闭LLDP协议,根据预测拓扑直接计算路径下发流表;在突发情况下开启LLDP,获取实时拓扑然后计算路径下发流表。为了验证TP-LC,搭建基于SDN交换机的仿真平台,能够同时模拟天基网络特性与SDN架构特性。仿真结果表明,TP-LC与Open SAN相比,降低了信令开销,减少了数据丢失。

关键词(KeyWords)： SDN;天基网络;突发情况;拓扑预测;LLDP控制;SDN交换机;仿真平台

Abstract:

Keywords:

基金项目(Foundation): 中国电子科技集团公司第五十四研究所高校合作基金(KX152600039)~~

作者(Author): 刘爱兵,吴静,吴兆阳,江昊

DOI: 10.16652/j.issn.1004-373x.2018.09.003

参考文献(References)：

• [1]PAPAPETROU E,KARAPANTAZIS S,PAVLIDOU F N.Distributed on-demand routing for LEO satellite systems[J].Computer networks,2007,51(15):4356-4376.
• [2]AKYILDIZ I F,EKICI E,BENDER M D.MLSR:a novel routing algorithm for multilayered satellite IP networks[J].IEEE/ACM transactions on networking,2002,10(3):411-424.
• [3]CHEN C,EKICI E.A routing protocol for hierarchical LEO/MEO satellite IP networks[J].Wireless networks,2005,11(4):507-521.
• [4]Open Networking Fundation.Software-defined networking:the new norm for networks[EB/OL].[2012-05-07].http://www.valleytalk.org/wp-content/uploads/2012/05/wp-sdn-newnorm.pdf.
• [5]TANG Z,ZHAO B K,YU W R,et al.Software defined satellite networks:benefits and challenges[C]//2014 IEEE Computing,Communications and Applications Conference.Beijing,China:IEEE,2014:127-132.
• [6]BAO J,ZHAO B,YU W,et al.Open SAN:a software-defined satellite network architecture[C]//Proceedings of the 2014ACM conference on SIGCOMM.New York:Association for Computing Machinery,2014:347-348.
• [7]BARRITT B,EDDY W.Temporospatial SDN for aerospace communications[C]//AIAA SPACE 2015 Conference and Exposition.America:American Institute of Aeronautics and Astronautics,2015:4656.
• [8]BARRITT B J,EDDY W.SDN enhancements for LEO satellite networks[C]//The 34th AIAA International Communications Satellite Systems Conference.America:American Institute of Aeronautics and Astronautics,2016:5755.
• [9]WANG J,LI L,ZHOU M.Topological dynamics characterization for LEO satellite networks[J].Computer networks,2007,51(1):43-53.
• [10]金玉洁.电离层活动对GNSS的影响和抑制方法[J].测绘通报,2013,5(1):111-112.JIN Yujie.Influence of ionospheric activity on GNSS and its inhibition[J].Bulletin of surveying,2013,5(1):111-112.
• [11]田天,吴耀平,常峥,等.2012年3月9日中国某地球同步轨道卫星故障原因分析[J].空间科学学报,2015,35(6):687-695.TIAN Tian,WU Yaoping,CHANG Zheng,et al.Analysis of the Chinese GEO satellite anomaly on 9 March 2012[J].China journal of space science,2015,35(6):687-695.
• [12]AWOBULUYI O.Periodic control update overheads in OpenFlow-based enterprise networks[C]//IEEE International Conference on Advanced Information Networking and Applications.New York:Institute of Electrical and Electronics Engigneers,2014:390-396.
• [13]凌翔,胡剑浩,吴诗其.低轨卫星移动通信系统接入方案[J].电子学报,2000,28(7):55-58.LING Xiang,HU Jianhao,WU Shiqi.Access schemes for LEO satellite mobile communication systems[J].Acta electronica sinica,2000,28(7):55-58.
• [14]Sdnhub.Mininet官方Walkthrough中文版[EB/OL].[2014-06].http://sdnhub.cn/index.php/mininet-walkthrough-chinese/.Sdnhub.Mininet Walkthrough(in Chinese)[EB/OL].[2014-06].http://sdnhub.cn/index.php/mininet-walkthrough-chinese/.
• [15]杨士中.基于有线等效网络的空间信息网架构:CN201310340807.5[P].2014-01-01.YANG Shizhong.Spatial information network architecture based on wired equivalent network CN201310340807.5[P].2014-01-01.