本文選題：軟件定義網絡(SDN) + 北向接口　； 參考：《南京郵電大學》2017年碩士論文

【摘要】：軟件定義網絡(software-defined networking,簡稱SDN)是一種新型的網絡架構,與傳統(tǒng)網絡不同,SDN將數(shù)據平面與控制平面解耦,將控制功能集中到了控制器中,網絡設備在控制器的指導下完成數(shù)據轉發(fā)。SDN分為應用層、控制層和數(shù)據層。SDN的出現(xiàn)滿足了網絡服務發(fā)展的需求,與傳統(tǒng)網絡相比,SDN能夠更好的實現(xiàn)服務定制。其北向接口可以使得上層應用更好的調用相關模塊實現(xiàn)更多樣化的功能,南向接口OpenFlow則是通過控制器向交換機發(fā)出控制信息。本文綜合研究了國內外關于軟件定義網絡,南向接口,北向接口以及Ryu控制器的相關文獻,并且詳細研究了南向接口OpenFlow協(xié)議的相關核心技術,在此基礎上,通過南向接口OpenFlow實現(xiàn)了流量監(jiān)測模塊與帶寬保障模塊以及最短路徑轉發(fā)等相關的功能,北向接口則用于獲取相關鏈路上的設備信息等情況,同時也可通過北向接口進行流表的相關操作。本文綜合了以上多種技術,提出了服務定制應用的設計方案,并依照該方案進行了各功能模塊的實現(xiàn),使用控制器和OF交換機之間消息,來進行流量感知,同時根據測量的結果,通過獲取的拓撲信息與鏈路情況,來進行路由選擇,對于類似于家庭用戶的帶寬需求,可以進行帶寬保障,用戶可以通過SDN的北向接口對網絡資源進行編排以定制出滿足自身需求的服務。為此,結合實際應用場景,制定了服務定制應用設計方案,并實現(xiàn)了基于SDN的服務定制應用。將所提出的設計應用置于實際SDN網絡環(huán)境中并進行了測試驗證。測試結果表明,該應用可較好的實現(xiàn)服務定制功能,滿足用戶對網絡能力的不同需求。
[Abstract]:Software-defined networking (SDN) is a new network architecture, which decouples the data plane from the control plane and centralizes the control function into the controller, which is different from the traditional network. Network equipment under the guidance of the controller to complete data forwarding. SDN is divided into application layer, the emergence of control layer and data layer. SDN meets the needs of the development of network services, compared with the traditional network SDN can better achieve service customization. The north interface can make the upper layer application call the related module better to achieve a more diversified function, and the southern interface OpenFlow sends out the control information to the switch through the controller. This paper synthetically studies the related literature of software definition network, south interface, north interface and Ryu controller, and studies the core technology of OpenFlow protocol in detail, on the basis of which, the software definition network, the south interface, the north interface and the Ryu controller are discussed in detail. The function of flow monitoring module and bandwidth guarantee module and shortest path forwarding are realized by OpenFlow, while the north interface is used to obtain equipment information on relevant links. At the same time, the flow table can also be operated through the north interface. This paper synthesizes the above technologies, proposes the design scheme of the service customization application, and carries on the realization of each function module according to this scheme, uses the message between the controller and the of switch to carry on the traffic perception, At the same time, according to the results of the measurement, through the obtained topology information and the link situation, to carry on the route choice, for the bandwidth requirement similar to the home user, may carry on the bandwidth safeguard, Users can orchestrate network resources through SDN's northward interface to customize the services to meet their needs. Based on the practical application scenario, the design scheme of service customization application is developed, and the service customization application based on SDN is realized. The proposed design is put into the actual SDN network environment and tested. The test results show that the application can realize the service customization function well and meet the different needs of users for network capability.
【學位授予單位】：南京郵電大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TP393.02

【參考文獻】

相關期刊論文 前10條

1 張朝昆;崔勇;唐，

本文編號：1781743