OpenFlow網(wǎng)絡中QoS管理系統(tǒng)的研究與實現(xiàn)
發(fā)布時間：2018-08-08 18:41
【摘要】：近年來，隨著網(wǎng)絡技術的快速發(fā)展，網(wǎng)絡業(yè)務種類日益多元化，網(wǎng)絡帶寬容量需求日益擴大。新型網(wǎng)絡業(yè)務的廣泛應用，包括視頻通話、電話會議、VOIP等，使得人們對服務質量（Quality of Service，QoS）要求越來越高。網(wǎng)絡如何有效保障業(yè)務的服務質量受到越來越多人的關注。隨著新型業(yè)務的多元化，傳統(tǒng)網(wǎng)絡體系架構暴露出了越來越多的弊病，例如網(wǎng)絡結構復雜化和網(wǎng)絡設備性能的飽和，對網(wǎng)絡新業(yè)務的推廣提出了嚴峻的考驗，已經(jīng)不能滿足各種新型業(yè)務對服務質量的需求。因此，一場新型網(wǎng)絡體系架構的革命蓄勢待發(fā)，軟件自定義網(wǎng)絡——一種可編程網(wǎng)絡體系架構應運而生。SDN網(wǎng)絡符合當今網(wǎng)絡發(fā)展需求，能夠從根本上解決上述問題。 OpenFlow是SDN的產(chǎn)物，是一種新型網(wǎng)絡交換模型，該模型利用開放流表（FlowTable）實現(xiàn)用戶對網(wǎng)絡數(shù)據(jù)處理的可編程控制。論文針對當前OpenFlow網(wǎng)絡對QoS管理的需求，結合對傳統(tǒng)IP網(wǎng)絡區(qū)分服務模型（DiffServ）QoS技術的研究，設計并實現(xiàn)了一套基于DiffServ模型和OpenFlow網(wǎng)絡架構的QoS管理系統(tǒng)。 論文首先對目前OpenFlow網(wǎng)絡技術的發(fā)展現(xiàn)狀及面臨的新需求進行了探討，并對相關的技術進行簡要介紹。針對OpenFlow網(wǎng)絡體系架構的特點，結合傳統(tǒng)網(wǎng)絡QoS管理系統(tǒng)的模型，，提出并設計一種全新的OpenFlow QoS管理系統(tǒng)體系架構模型，并對管理系統(tǒng)的架構和功能的實現(xiàn)進行了詳細闡述。然后，按照預定的設計方案對管理系統(tǒng)進行實現(xiàn)，通過搭建小型網(wǎng)絡拓撲對其進行驗證，并對實驗結果進行分析，驗證論文設計的QOS管理系統(tǒng)顯著的提高了對網(wǎng)絡QoS性能的全局掌控，降低了底層交換設備的工作負載。最后，進行了總結，并提出論文研究下一步研究方向。
[Abstract]:In recent years, with the rapid development of network technology, the variety of network services is becoming more and more diverse, and the demand for network bandwidth capacity is increasing. With the wide application of new network services, such as video calling, teleconferencing and so on, the quality of service (QoS) is becoming more and more important. More and more people pay attention to how to ensure the service quality of network effectively. With the diversification of new services, the traditional network architecture has exposed more and more disadvantages, such as the complexity of network structure and the saturation of network equipment performance, which has put forward a severe test to the promotion of new network services. It has not been able to meet the needs of various new services for quality of service. Therefore, a revolution in a new network architecture is on the way, and the software custom network, a programmable network architecture, emerges as the times require. The SDN network meets the needs of today's network development. OpenFlow is the product of SDN and a new network exchange model. The model uses open stream table (FlowTable) to realize the programmable control of network data processing. According to the demand of OpenFlow network for QoS management and the research on (DiffServ) QoS technology of traditional IP network differentiated service model, a QoS management system based on DiffServ model and OpenFlow network architecture is designed and implemented in this paper. Firstly, the paper discusses the development of OpenFlow network technology and the new demand, and briefly introduces the related technologies. According to the characteristics of OpenFlow network architecture and combined with the traditional network QoS management system model, a new OpenFlow QoS management system architecture model is proposed and designed, and the implementation of the architecture and function of the management system is described in detail. Then, the management system is implemented according to the predetermined design scheme, and verified by building a small network topology, and the experimental results are analyzed. It is verified that the QOS management system designed in this paper can significantly improve the global control of the network QoS performance and reduce the workload of the underlying switching devices. Finally, a summary is made and the next research direction of the thesis is put forward.
【學位授予單位】：武漢郵電科學研究院
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TP393.07
本文編號：2172678
[Abstract]:In recent years, with the rapid development of network technology, the variety of network services is becoming more and more diverse, and the demand for network bandwidth capacity is increasing. With the wide application of new network services, such as video calling, teleconferencing and so on, the quality of service (QoS) is becoming more and more important. More and more people pay attention to how to ensure the service quality of network effectively. With the diversification of new services, the traditional network architecture has exposed more and more disadvantages, such as the complexity of network structure and the saturation of network equipment performance, which has put forward a severe test to the promotion of new network services. It has not been able to meet the needs of various new services for quality of service. Therefore, a revolution in a new network architecture is on the way, and the software custom network, a programmable network architecture, emerges as the times require. The SDN network meets the needs of today's network development. OpenFlow is the product of SDN and a new network exchange model. The model uses open stream table (FlowTable) to realize the programmable control of network data processing. According to the demand of OpenFlow network for QoS management and the research on (DiffServ) QoS technology of traditional IP network differentiated service model, a QoS management system based on DiffServ model and OpenFlow network architecture is designed and implemented in this paper. Firstly, the paper discusses the development of OpenFlow network technology and the new demand, and briefly introduces the related technologies. According to the characteristics of OpenFlow network architecture and combined with the traditional network QoS management system model, a new OpenFlow QoS management system architecture model is proposed and designed, and the implementation of the architecture and function of the management system is described in detail. Then, the management system is implemented according to the predetermined design scheme, and verified by building a small network topology, and the experimental results are analyzed. It is verified that the QOS management system designed in this paper can significantly improve the global control of the network QoS performance and reduce the workload of the underlying switching devices. Finally, a summary is made and the next research direction of the thesis is put forward.
【學位授予單位】：武漢郵電科學研究院
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TP393.07
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