發(fā)布時(shí)間：2018-08-08 18:41

【摘要】：近年來，隨著網(wǎng)絡(luò)技術(shù)的快速發(fā)展，網(wǎng)絡(luò)業(yè)務(wù)種類日益多元化，網(wǎng)絡(luò)帶寬容量需求日益擴(kuò)大。新型網(wǎng)絡(luò)業(yè)務(wù)的廣泛應(yīng)用，包括視頻通話、電話會(huì)議、VOIP等，使得人們對(duì)服務(wù)質(zhì)量（Quality of Service，QoS）要求越來越高。網(wǎng)絡(luò)如何有效保障業(yè)務(wù)的服務(wù)質(zhì)量受到越來越多人的關(guān)注。隨著新型業(yè)務(wù)的多元化，傳統(tǒng)網(wǎng)絡(luò)體系架構(gòu)暴露出了越來越多的弊病，例如網(wǎng)絡(luò)結(jié)構(gòu)復(fù)雜化和網(wǎng)絡(luò)設(shè)備性能的飽和，對(duì)網(wǎng)絡(luò)新業(yè)務(wù)的推廣提出了嚴(yán)峻的考驗(yàn)，已經(jīng)不能滿足各種新型業(yè)務(wù)對(duì)服務(wù)質(zhì)量的需求。因此，一場(chǎng)新型網(wǎng)絡(luò)體系架構(gòu)的革命蓄勢(shì)待發(fā)，軟件自定義網(wǎng)絡(luò)——一種可編程網(wǎng)絡(luò)體系架構(gòu)應(yīng)運(yùn)而生。SDN網(wǎng)絡(luò)符合當(dāng)今網(wǎng)絡(luò)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(luò)交換模型，該模型利用開放流表（FlowTable）實(shí)現(xiàn)用戶對(duì)網(wǎng)絡(luò)數(shù)據(jù)處理的可編程控制。論文針對(duì)當(dāng)前OpenFlow網(wǎng)絡(luò)對(duì)QoS管理的需求，結(jié)合對(duì)傳統(tǒng)IP網(wǎng)絡(luò)區(qū)分服務(wù)模型（DiffServ）QoS技術(shù)的研究，設(shè)計(jì)并實(shí)現(xiàn)了一套基于DiffServ模型和OpenFlow網(wǎng)絡(luò)架構(gòu)的QoS管理系統(tǒng)。 論文首先對(duì)目前OpenFlow網(wǎng)絡(luò)技術(shù)的發(fā)展現(xiàn)狀及面臨的新需求進(jìn)行了探討，并對(duì)相關(guān)的技術(shù)進(jìn)行簡要介紹。針對(duì)OpenFlow網(wǎng)絡(luò)體系架構(gòu)的特點(diǎn)，結(jié)合傳統(tǒng)網(wǎng)絡(luò)QoS管理系統(tǒng)的模型，，提出并設(shè)計(jì)一種全新的OpenFlow QoS管理系統(tǒng)體系架構(gòu)模型，并對(duì)管理系統(tǒng)的架構(gòu)和功能的實(shí)現(xiàn)進(jìn)行了詳細(xì)闡述。然后，按照預(yù)定的設(shè)計(jì)方案對(duì)管理系統(tǒng)進(jìn)行實(shí)現(xiàn)，通過搭建小型網(wǎng)絡(luò)拓?fù)鋵?duì)其進(jìn)行驗(yàn)證，并對(duì)實(shí)驗(yàn)結(jié)果進(jìn)行分析，驗(yàn)證論文設(shè)計(jì)的QOS管理系統(tǒng)顯著的提高了對(duì)網(wǎng)絡(luò)QoS性能的全局掌控，降低了底層交換設(shè)備的工作負(fù)載。最后，進(jìn)行了總結(jié)，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(xué)位授予單位】：武漢郵電科學(xué)研究院
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TP393.07

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 王麗君;劉永強(qiáng);張健;;基于OpenFlow的未來互聯(lián)網(wǎng)試驗(yàn)技術(shù)研究[J];電信網(wǎng)技術(shù);2011年06期

2 盛立杰,林闖,吳建平;一種區(qū)分服務(wù)綜合方案的模型與性能分析[J];電子學(xué)報(bào);2000年S1期

3 朱毅;吳昕;;基于QoS隊(duì)列管理實(shí)現(xiàn)WRED算法的研究[J];淮南師范學(xué)院學(xué)報(bào);2010年03期

4 劉子英;陳劍云;;運(yùn)營商網(wǎng)絡(luò)的QoS體系構(gòu)架與實(shí)現(xiàn)[J];計(jì)算機(jī)工程;2006年19期

5 鮑慧;趙生崗;黃霞;;基于DiffServ模型的調(diào)度算法[J];計(jì)算機(jī)工程;2008年20期

6 鄒雪蘭;劉偉彥;孫雁飛;;一種基于速率的公平隊(duì)列管理算法[J];計(jì)算機(jī)工程;2009年06期

7 林闖;王元卓;任豐原;;新一代網(wǎng)絡(luò)QoS研究[J];計(jì)算機(jī)學(xué)報(bào);2008年09期

8 徐名海,糜正琨,蔡蓓蓓,謝文珂;IP網(wǎng)絡(luò)QoS實(shí)現(xiàn)技術(shù)研究[J];南京郵電學(xué)院學(xué)報(bào);2005年01期

9 何國鋒;;OpenFlow在下一代數(shù)據(jù)中心網(wǎng)絡(luò)的應(yīng)用研究[J];互聯(lián)網(wǎng)天地;2013年03期

10 左青云;陳鳴;趙廣松;邢長友;張國敏;蔣培成;;基于OpenFlow的SDN技術(shù)研究[J];軟件學(xué)報(bào);2013年05期

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