軟件定義網(wǎng)的東西向對等互聯(lián)機制研究
發(fā)布時間：2019-05-17 10:14
【摘要】：大規(guī)模網(wǎng)絡在部署軟件定義的網(wǎng)絡（Software Defined Networking，SDN）時，管理員往往把網(wǎng)絡劃分成多個子網(wǎng)，每個子網(wǎng)部署一個網(wǎng)絡操作系統(tǒng)（NetworkOperating System，NOS）或控制器（Controller）。每個控制器可以學到本地的網(wǎng)絡視圖，控制數(shù)據(jù)包在其管轄的范圍的路由。但控制數(shù)據(jù)包在全網(wǎng)范圍內的路由，需要每個控制器有一個全局的網(wǎng)絡視圖，來決定轉發(fā)的下一跳。另一方面，目前的Internet是由多個不同的管理域組成的，SDN集中控制的模式不適用于當前互聯(lián)網(wǎng)的域間。因此，要實現(xiàn)SDN管理域內子網(wǎng)間、SDN管理域間的互聯(lián)互通，控制器間需建立對等（Peering）關系，共享網(wǎng)絡的可達性和其他信息。本文為SDN同一管理域的不同子網(wǎng)間、不同管理域間設計了一套通用的控制器Peering機制WE-Bridge（West-East Bridge），主要研究內容和貢獻如下： 1研究了不同SDN網(wǎng)絡場景下（相同管理域內、不同管理域間）控制器建立東西向Peering對等互聯(lián)機制的需求。對當前SDN網(wǎng)絡中的東西向對等互聯(lián)機制進行了綜述和分析。 2提出了一種SDN網(wǎng)絡間對等互聯(lián)的新型構架WE-Bridge。論文完成了WE-Bridge的構架、機制、信息分發(fā)、服務接口等設計，可用于SDN同管理域內的不同子網(wǎng)間以及SDN不同管理域間的互聯(lián)互通。 3設計和實現(xiàn)了WE-Bridge系統(tǒng)和國際試驗網(wǎng)。該實驗網(wǎng)由美國的Internet2、中國教育科研網(wǎng)CERNET、中國科技網(wǎng)CSTNET、荷蘭科研教育網(wǎng)SURFNET中的4個SDN網(wǎng)絡組成。實現(xiàn)了域間細粒度路由、端到端的QoS（Quality of Service）路由、域間源地址認證等基于SDN的應用，驗證了WE-Bridge促進網(wǎng)絡創(chuàng)新的能力，成為ONF（Open Networking Foundation）制定東西向新接口標準的基礎。 4驗證了WE-Bridge應用于域內不同子網(wǎng)間的可行性。搭建了基于WE-Bridge的Mininet試驗床，設計、開發(fā)、部署了域內路由應用作為測試用例。 5提出了SDN管控域和傳統(tǒng)BGP路由域的對等互聯(lián)機制。從保留和淘汰傳統(tǒng)BGP（Border Gateway Protocol）邊界路由器兩個角度，，提出了不同方案。所設計和實現(xiàn)的系統(tǒng)已在新西蘭教育和科研網(wǎng)絡、Internet2的SDN試驗網(wǎng)絡中得到了部署使用。
[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
【學位授予單位】：清華大學
【學位級別】：博士
【學位授予年份】：2014
【分類號】：TP393.02
本文編號：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
【學位授予單位】：清華大學
【學位級別】：博士
【學位授予年份】：2014
【分類號】：TP393.02
【參考文獻】
相關期刊論文 前2條
1 王鵬;羅軍舟;李偉;曲延盛;于楓;;基于可信可控網(wǎng)絡的流量工程與覆蓋網(wǎng)路由的合作博弈模型[J];計算機學報;2010年09期
2 畢軍;劉冰洋;吳建平;沈燕;;Preventing IP Source Address Spoofing: A Two-Level, State Machine-Based Method[J];Tsinghua Science and Technology;2009年04期
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