面向SDN和NFV融合机制的标准化业务链平台研究
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摘要
业务链作为软件定义网络(SDN)和网络功能虚拟化(NFV)的创新业务模式,近年来已成为学术界和工业界的研究热点. SDN和NFV通过水平分层增强厂商采购时的议价能力,使网络功能无需依赖专有的硬件设备,进而能够实现新业务的即时部署.本文首先分析了传统业务链平台存在的问题,然后通过引入SDN和NFV的融合机制,基于MANO架构设计了一种标准化的业务链平台.基于此架构,对控制平面和数据转发平面进行了全新设计,提出了基于多控制器的控制平面和基于源MAC的数据转发平面,从而彻底解决了控制平面的可靠性问题以及数据平面的可扩展性问题.最后,对该业务链平台进行了功能和性能验证,结果证明了该方案的可行性.
Service chain is an innovative model toward the integration of Software Defined Network( SDN) and Network Function Virtualization( NFV),which has become a hot research topic in academia and industry in recent years. SDN and NFV can enhance the bargaining power of vendors and make network equipment no longer rely on proprietary hardware,thus realize rapid development and deployment of new services. First,the paper analyzes the problems existing in the traditional service chain platform,and then designs a standardized service chain platform based on MANO architecture by introducing SDN and NFV. Based on this platform,the control plane and data forwarding plane are re-designed,based on multi-controller model and the source MAC mechanism,and thus the reliability of control plane and the extensibility of data plane are thoroughly solved. Finally,the function and performance of the service chain platform is verified,and the result proves the feasibility of the solution.
Service chain is an innovative model toward the integration of Software Defined Network( SDN) and Network Function Virtualization( NFV),which has become a hot research topic in academia and industry in recent years. SDN and NFV can enhance the bargaining power of vendors and make network equipment no longer rely on proprietary hardware,thus realize rapid development and deployment of new services. First,the paper analyzes the problems existing in the traditional service chain platform,and then designs a standardized service chain platform based on MANO architecture by introducing SDN and NFV. Based on this platform,the control plane and data forwarding plane are re-designed,based on multi-controller model and the source MAC mechanism,and thus the reliability of control plane and the extensibility of data plane are thoroughly solved. Finally,the function and performance of the service chain platform is verified,and the result proves the feasibility of the solution.
引文
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[8]林萍萍,毕军,胡虹雨,等.一种面向SDN域内控制平面可扩展性的机制[J].小型微型计算机系统,2013,34(9):1969-1974.
[10]张朝昆,崔勇,吴建平,等.软件定义网络(SDN)研究进展[J].软件学报,2015,26(1):62-81.
[17]姜俊超,朱坤杰,张云飞,等.SDN中DASH路由规划和码率调节联合决策算法[J].小型微型计算机系统,2017,38(6):1169-1174.
[23]王鹃,王江,焦虹阳,等.一种基于OpenFlow的SDN访问控制策略实时冲突检测与解决方法[J].计算机学报,2015,38(4):872-883.
[2]Huang H,Guo S,Wu J,et al.Joint middlebox selection and routing for software-defined network[C].IEEE International Conference on Communications,2016.
[3]Lee J,Tourrilhes J,Sharma P,et al.No more middlebox:integrate processing into network[J].ACM SIGCOM M Computer Communication Review,2010,40(4):459-460.
[4]Duan Q,Ansari N,Toy M,et al.Software-defined network virtualization:an architectural framework for integrating SDN and NFVfor service provisioning in future networks[J].IEEE Networks,2016,30(5):10-16.
[5]Nguyen V,Do T,Kim Y,et al.SDN and virtualization-based LTEmobile network architectures:a comprehensive survey[J].Wireless Personal Communications,2016,86(3):1401-1438.
[6]Sekar V,Egi N,Ratnasamy S,et al.Design and implementation of a consolidated middlebox architecture[C].9th USENIX Symposium on Networked Systems Design and Implementation(NSDI),2012.
[7]McKeown N.Keynote talk:software-defined networking[C].The28th Conference on Computer Communications(INFOCOM),2009.
[8]Lin Ping-ping,Bi Jun,Hu Hong-yu,et al.MSDN:a mechanism for scalable intra-domain control plane in SDN[J].Journal of Chinese Computer Systems,2013,34(9):1969-1974.
[9]Qazi Z,Tu C,Chiang L,et al.Practical and incremental convergence between SDN and middleboxes[C].Open Network Summit,2013.
[10]Zhang Chao-kun,Cui Yong,Wu Jian-ping.State-of-the-art survey on software-defined networking(SDN)[J].Journal of Software,2015,26(1):62-81.
[11]Yang W,Fung C.A survey on security in network functions virtualization[C].Netsoft Conference and Workshops(NetSoft),2016.
[12]Daghmehchi M,Jeong J,Ko H,et al.Security challenges with network functions virtualization[J].Future Generation Computer Systems,2017,52(9):315-324.
[13]Mijumbi R,Serrat J,Gorricho J,et al.Management and orchestration challenges in network functions virtualization[J].IEEE Communications M agazine,2016,54(1):98-105.
[14]Fayazbakhsh S,Reiter M,Sekar V.Verifiable network function outsourcing:requirements,challenges,and roadmap[C].HotM iddlebox,2013:25-30.
[15]Sherry J,Hasan S,Scott C,et al.Making middleboxes someone else's problem:network processing as a cloud service[C].ACM Special Interest Group on Data Communication(SIGCOMM),2012.
[16]Ding Wan-fu,Qi Wen,Wang Jian-ping,et al.OpenSCaaS:an open service chain as a service platform towards the integration of SDNand NFV[J].IEEE Network,2015,29(3):30-35.
[17]Jiang Jun-chao,Zhu Kun-jie,Zhang Yun-fei,et al.Joint decision algorithm for DASH video transmission routing and bitrate adjustment in software-defined networking[J].Journal of Chinese Computer Systems,2017,38(6):1169-1174.
[18]Gember A,Viswanathan R,Prakash C,et al.OpenNF:enabling innovation in network function control[C].ACM Special Interest Group on Data Communication(SIGCOM M),2014.
[19]Gember A,Krishnamurthy A,John S,et al.Stratos:a network-aware orchestration layer for virtual middleboxes in clouds[EB/OL].https://arxiv.org/pdf/1305.0209v2.pdf,2013-5-1.
[20]Zhang Y,Beheshti N,Beliveau L,et al.Steering:a software-defined networking for inline service chaining[C].International Conference on Network Protocols(ICNP),2013.
[21]Bizanis N,Kuipers F.SDN and virtualization solutions for the Internet of things:a survey[C].IEEE Access,2016:5591-5606.
[22]Gember A,Grandl R,Khalid J,et al.Design and implementation of a framework for software-defined middlebox networking[C].ACM Special Interest Group on Data Communication(SIG-COM M),2013.
[23]Wang Juan,Wang Jiang,Jiao Hong-yang,et al.A method of openflow-based real-time confilict detection and resolution for SDN access control policies[J].Chinese Journal of Computers,2015,38(4):872-883.
[24]Fayazbakhsh S,Chiang L,Sekar V,et al.Enforcing network-wide policies in the presence of dynamic middle box actions using flowtags[C].11th USENIX Symposium on Networked System Design and Implementation(NSDI),2014.
[25]Hantouti H,Benamar N,Taleb T,et al.Traffic steering for service function chaining[J].IEEE Communications Surveys&Tutorials,2018,19(2):322-328.
[26]Medved J,Varga R,Tkacik A,et al.Opendaylight:towards a model-driven sdn controller architecture[C].IEEE 15th International Symposium on WoWM oM,2014.
[27]Martins J,Ahmed M,Raiciu C,et al.ClickOS and the art of network function virtualization[C].11th USENIX Symposium on Networked System Design and Implementation(NSDI),2014.
[8]林萍萍,毕军,胡虹雨,等.一种面向SDN域内控制平面可扩展性的机制[J].小型微型计算机系统,2013,34(9):1969-1974.
[10]张朝昆,崔勇,吴建平,等.软件定义网络(SDN)研究进展[J].软件学报,2015,26(1):62-81.
[17]姜俊超,朱坤杰,张云飞,等.SDN中DASH路由规划和码率调节联合决策算法[J].小型微型计算机系统,2017,38(6):1169-1174.
[23]王鹃,王江,焦虹阳,等.一种基于OpenFlow的SDN访问控制策略实时冲突检测与解决方法[J].计算机学报,2015,38(4):872-883.
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