软件定义网的东西向对等互联机制研究
发布时间：2019-05-17 10:14
【摘要】：大规模网络在部署软件定义的网络（Software Defined Networking，SDN）时，管理员往往把网络划分成多个子网，每个子网部署一个网络操作系统（NetworkOperating System，NOS）或控制器（Controller）。每个控制器可以学到本地的网络视图，控制数据包在其管辖的范围的路由。但控制数据包在全网范围内的路由，需要每个控制器有一个全局的网络视图，来决定转发的下一跳。另一方面，目前的Internet是由多个不同的管理域组成的，SDN集中控制的模式不适用于当前互联网的域间。因此，要实现SDN管理域内子网间、SDN管理域间的互联互通，控制器间需建立对等（Peering）关系，共享网络的可达性和其他信息。本文为SDN同一管理域的不同子网间、不同管理域间设计了一套通用的控制器Peering机制WE-Bridge（West-East Bridge），主要研究内容和贡献如下： 1研究了不同SDN网络场景下（相同管理域内、不同管理域间）控制器建立东西向Peering对等互联机制的需求。对当前SDN网络中的东西向对等互联机制进行了综述和分析。 2提出了一种SDN网络间对等互联的新型构架WE-Bridge。论文完成了WE-Bridge的构架、机制、信息分发、服务接口等设计，可用于SDN同管理域内的不同子网间以及SDN不同管理域间的互联互通。 3设计和实现了WE-Bridge系统和国际试验网。该实验网由美国的Internet2、中国教育科研网CERNET、中国科技网CSTNET、荷兰科研教育网SURFNET中的4个SDN网络组成。实现了域间细粒度路由、端到端的QoS（Quality of Service）路由、域间源地址认证等基于SDN的应用，验证了WE-Bridge促进网络创新的能力，成为ONF（Open Networking Foundation）制定东西向新接口标准的基础。 4验证了WE-Bridge应用于域内不同子网间的可行性。搭建了基于WE-Bridge的Mininet试验床，设计、开发、部署了域内路由应用作为测试用例。 5提出了SDN管控域和传统BGP路由域的对等互联机制。从保留和淘汰传统BGP（Border Gateway Protocol）边界路由器两个角度，，提出了不同方案。所设计和实现的系统已在新西兰教育和科研网络、Internet2的SDN试验网络中得到了部署使用。
[Abstract]:When a large-scale network is deployed with Software Defined Networking (SDN), administrators often divide the network into multiple subnets, each of which is deployed with a network operating system (NOS) or controller. Each controller can learn a local network view to control the routing of packets within its jurisdiction. But control the routing of the data packet over the entire network, requiring each controller to have a global network view to determine the next hop to be forwarded. On the other hand, the current Internet is composed of a plurality of different management domains, and the SDN centralized control mode is not applicable to the inter-domain of the current Internet. Therefore, to realize the interconnection among the sub-networks and the SDN management domains in the SDN management domain, the inter-network inter-network interconnection and the inter-controller need to establish peer-to-peer (Peering) relations, and share the reachability and other information of the network. In this paper, a general-purpose controller, WE-Bridge, is designed for different sub-networks of the same management domain of SDN. The main research contents and contributions are as follows: 1 Study of different SDN network scenarios (same management domain In-domain, different management domains) controllers establish the need for an east-west Peering peer-to-peer interconnection mechanism The interconnection mechanism of east-west peer-to-west peer-to-peer interconnection in the current SDN network is reviewed and divided. A new framework WE-Bri for peer-to-peer interconnection between SDN networks is presented in this paper. The paper completes the design of the framework, mechanism, information distribution and service interface of the WE-Bridge, and can be used for the interaction between the different sub-networks in the SDN and the management domain and the different management domains of the SDN. Interworking.3 Design and implementation of the WE-Bridge system and The experimental network is composed of 4 SD in the Internet2, China Educational Research Network, CERNET, CNSTNET, and the Netherlands Research and Education Network, SURFNET. The network is composed of N-network. The application of domain-to-field fine-grained routing, end-to-end QoS (Quality of Service) routing, and inter-domain source address certification is based on the application of SDN, and the ability of WE-Bridge to promote network innovation is verified, which becomes the new interface for ONF (Open Networking Foundation). Standard base.4 Verify WE-Bridge is applied to different domains The feasibility of the sub-network is as follows: a Minet test bed based on WE-Bridge is built to design, develop and deploy the intra-domain routing. using as a test case, a SDN control domain and a traditional BGP path are presented The peer-to-peer interconnection mechanism by the domain. Two corners of the Border Router from the traditional BGP (Border Gateway Protocol) are reserved and eliminated. the design and implementation of the system has been in the New Zealand Education and Scientific Research Network, the SDN Test Network of Internet2
【学位授予单位】：清华大学
【学位级别】：博士
【学位授予年份】：2014
【分类号】：TP393.02
本文编号：2479020
[Abstract]:When a large-scale network is deployed with Software Defined Networking (SDN), administrators often divide the network into multiple subnets, each of which is deployed with a network operating system (NOS) or controller. Each controller can learn a local network view to control the routing of packets within its jurisdiction. But control the routing of the data packet over the entire network, requiring each controller to have a global network view to determine the next hop to be forwarded. On the other hand, the current Internet is composed of a plurality of different management domains, and the SDN centralized control mode is not applicable to the inter-domain of the current Internet. Therefore, to realize the interconnection among the sub-networks and the SDN management domains in the SDN management domain, the inter-network inter-network interconnection and the inter-controller need to establish peer-to-peer (Peering) relations, and share the reachability and other information of the network. In this paper, a general-purpose controller, WE-Bridge, is designed for different sub-networks of the same management domain of SDN. The main research contents and contributions are as follows: 1 Study of different SDN network scenarios (same management domain In-domain, different management domains) controllers establish the need for an east-west Peering peer-to-peer interconnection mechanism The interconnection mechanism of east-west peer-to-west peer-to-peer interconnection in the current SDN network is reviewed and divided. A new framework WE-Bri for peer-to-peer interconnection between SDN networks is presented in this paper. The paper completes the design of the framework, mechanism, information distribution and service interface of the WE-Bridge, and can be used for the interaction between the different sub-networks in the SDN and the management domain and the different management domains of the SDN. Interworking.3 Design and implementation of the WE-Bridge system and The experimental network is composed of 4 SD in the Internet2, China Educational Research Network, CERNET, CNSTNET, and the Netherlands Research and Education Network, SURFNET. The network is composed of N-network. The application of domain-to-field fine-grained routing, end-to-end QoS (Quality of Service) routing, and inter-domain source address certification is based on the application of SDN, and the ability of WE-Bridge to promote network innovation is verified, which becomes the new interface for ONF (Open Networking Foundation). Standard base.4 Verify WE-Bridge is applied to different domains The feasibility of the sub-network is as follows: a Minet test bed based on WE-Bridge is built to design, develop and deploy the intra-domain routing. using as a test case, a SDN control domain and a traditional BGP path are presented The peer-to-peer interconnection mechanism by the domain. Two corners of the Border Router from the traditional BGP (Border Gateway Protocol) are reserved and eliminated. the design and implementation of the system has been in the New Zealand Education and Scientific Research Network, the SDN Test Network of Internet2
【学位授予单位】：清华大学
【学位级别】：博士
【学位授予年份】：2014
【分类号】：TP393.02
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2 毕军;刘冰洋;吴建平;沈燕;;Preventing IP Source Address Spoofing: A Two-Level, State Machine-Based Method[J];Tsinghua Science and Technology;2009年04期
本文编号：2479020
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