本文選題：軟件定義聯(lián)網(wǎng) + 流量信息采集　； 參考：《南京郵電大學(xué)》2017年碩士論文

【摘要】：隨著IP網(wǎng)絡(luò)新興業(yè)務(wù)的快速發(fā)展,人們對服務(wù)質(zhì)量的要求越來越高,但現(xiàn)有的IP網(wǎng)絡(luò)采用分布式路由控制機(jī)制,較難實(shí)現(xiàn)網(wǎng)絡(luò)資源的動(dòng)態(tài)分配。軟件定義聯(lián)網(wǎng)(SDN)作為一種新型的網(wǎng)絡(luò)體系結(jié)構(gòu),實(shí)現(xiàn)了網(wǎng)絡(luò)控制與數(shù)據(jù)轉(zhuǎn)發(fā)的分離,其集中式的路由控制機(jī)制更容易為業(yè)務(wù)流選擇具有服務(wù)質(zhì)量(QoS)約束的路由,因此,研究SDN的路由選擇技術(shù)具有重要的理論意義和應(yīng)用價(jià)值。論文通過分析SDN的網(wǎng)絡(luò)結(jié)構(gòu)特點(diǎn)和OpenFlow協(xié)議特性,對比IP網(wǎng)絡(luò)路由選擇技術(shù)與SDN的路由選擇技術(shù)的區(qū)別,總結(jié)出SDN的網(wǎng)絡(luò)實(shí)現(xiàn)QoS路由選擇技術(shù)的優(yōu)勢,并設(shè)計(jì)了基于SDN網(wǎng)絡(luò)的具有QoS約束的路由選擇方案;針對IP網(wǎng)絡(luò)鏈路信息不準(zhǔn)確及算法復(fù)雜度較高等問題,本文使用OpenFlow協(xié)議并采用主動(dòng)的方式實(shí)時(shí)采集網(wǎng)絡(luò)鏈路上的流量信息;此外,為了簡化QoS路由算法的復(fù)雜度,本文設(shè)計(jì)和仿真實(shí)現(xiàn)了一種基于Dijkstra算法的具有QoS約束的路由選擇算法,該算法根據(jù)全局網(wǎng)絡(luò)拓?fù)浼版溌反鷥r(jià)為業(yè)務(wù)流選擇具有QoS約束的路由。論文在開源實(shí)驗(yàn)平臺(tái)Floodlight控制器上對SDN網(wǎng)絡(luò)鏈路上的已用帶寬進(jìn)行測試,測試結(jié)果表明可以較為準(zhǔn)確地獲取鏈路帶寬狀態(tài);對SDN網(wǎng)絡(luò)中具有QoS約束的路由算法的有效性進(jìn)行了仿真實(shí)驗(yàn),實(shí)驗(yàn)結(jié)果表明:QoS路由算法能根據(jù)業(yè)務(wù)流類型,為業(yè)務(wù)流提供具有QoS約束的路由。
[Abstract]:With the rapid development of new services in IP network, the requirement of QoS is becoming higher and higher. However, the existing IP network adopts distributed routing control mechanism, so it is difficult to realize the dynamic allocation of network resources. As a new network architecture, SDN (Software definition networking) realizes the separation of network control and data forwarding, and its centralized routing control mechanism is easier to select QoS constrained routing for traffic flow. The research of SDN routing technology has important theoretical significance and application value. By analyzing the characteristics of SDN network structure and OpenFlow protocol, comparing the differences between IP network routing technology and SDN routing technology, this paper summarizes the advantages of QoS routing technology in SDN network. A route selection scheme with QoS constraints based on SDN network is designed. Aiming at the problems of inaccurate link information and high algorithm complexity in IP network, this paper uses OpenFlow protocol and adopts active way to collect the traffic information on the network link in real time. In addition, in order to simplify the complexity of QoS routing algorithm, this paper designs and implements a routing algorithm with QoS constraints based on Dijkstra algorithm. The algorithm selects QoS constrained routing for traffic flows according to global network topology and link cost. In this paper, the used bandwidth on the SDN network link is tested on the open source experimental platform Floodlight controller. The test results show that the link bandwidth state can be obtained more accurately. The effectiveness of the routing algorithm with QoS constraints in SDN networks is simulated. The experimental results show that the SDN routing algorithm can provide routing with QoS constraints for traffic flows according to the type of traffic flow.
【學(xué)位授予單位】：南京郵電大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TP393.0

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 周桐慶;蔡志平;夏竟;徐明;;基于軟件定義網(wǎng)絡(luò)的流量工程[J];軟件學(xué)報(bào);2016年02期

2 YAN Jinyao;ZHANG Hailong;SHUAI Qianjun;LIU Bo;GUO Xiao;;HiQoS:An SDN-Based Multipath QoS Solution[J];中國通信;2015年05期

3 沈蘇彬;;軟件定義聯(lián)網(wǎng)的建模與分析[J];南京郵電大學(xué)學(xué)報(bào)(自然科學(xué)版);2014年03期

4 齊小剛,劉三陽;一種基于K最短路徑的QoS路由選擇算法[J];吉林大學(xué)學(xué)報(bào)(工學(xué)版);2005年05期

5 李捷,張博;基于QoS的單播源路由算法研究[J];計(jì)算機(jī)工程與設(shè)計(jì);2005年03期

6 唐曉雷,余鎮(zhèn)危,劉知一,李罡;準(zhǔn)入控制研究綜述[J];計(jì)算機(jī)工程與應(yīng)用;2005年05期

7 楊云,徐佳,李千目,劉鳳玉;基于Dijkstra策略的QoS路由多目標(biāo)算法[J];小型微型計(jì)算機(jī)系統(tǒng);2004年09期

8 林玉俠,朱慧玲,馬正新,劉序明;QoS路由度量參數(shù)的選擇問題研究[J];電信科學(xué);2003年07期

9 朱慧玲,杭大明,馬正新,曹志剛,李安國;QoS路由選擇:問題與解決方法綜述[J];電子學(xué)報(bào);2003年01期

10 崔勇,吳建平,徐恪,徐明偉;互聯(lián)網(wǎng)絡(luò)服務(wù)質(zhì)量路由算法研究綜述[J];軟件學(xué)報(bào);2002年11期

相關(guān)博士學(xué)位論文 前1條

1 陳曉峰;IP網(wǎng)絡(luò)QoS技術(shù)研究[D];浙江大學(xué);2006年

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本文編號：1931597