本文選題：SDN + ONOS　； 參考：《電子科技大學》2017年碩士論文

【摘要】：隨著互聯(lián)網(wǎng)的快速發(fā)展,各種新業(yè)務(wù)的出現(xiàn),如三網(wǎng)融合,云計算,大數(shù)據(jù)等,傳統(tǒng)網(wǎng)絡(luò)架構(gòu)的“僵化”問題日益突出,越來越不能滿足當前互聯(lián)網(wǎng)業(yè)務(wù)的需要。而軟件定義網(wǎng)絡(luò)SDN和網(wǎng)絡(luò)虛擬化技術(shù)能夠有效解決這個問題。SDN的思想是將控制平面和數(shù)據(jù)平面相分離,各自獨立發(fā)展。網(wǎng)絡(luò)虛擬化是將底層物理網(wǎng)絡(luò)資源抽象,使得同一個物理網(wǎng)絡(luò)之上可以部署多個虛擬網(wǎng)絡(luò),這些虛擬網(wǎng)絡(luò)相互獨立,可以各自部署不同的網(wǎng)絡(luò)協(xié)議和網(wǎng)絡(luò)服務(wù)。SDN能夠有效解決網(wǎng)絡(luò)架構(gòu)“僵化”問題,網(wǎng)絡(luò)虛擬化技術(shù)能夠更加有效的利用網(wǎng)絡(luò)資源,使得網(wǎng)絡(luò)新服務(wù)的部署和運維更加方便。SDN將物理網(wǎng)絡(luò)資源抽象、池化的概念與網(wǎng)絡(luò)虛擬化技術(shù)集中控制、軟件應用控制整個虛擬網(wǎng)絡(luò)相吻合,在SDN網(wǎng)絡(luò)中更加容易實現(xiàn)網(wǎng)絡(luò)虛擬化,而SDN最適合的領(lǐng)域是數(shù)據(jù)中心中的網(wǎng)絡(luò)虛擬化應用,所以將網(wǎng)絡(luò)虛擬化和SDN相結(jié)合能夠更好的服務(wù)于層出不窮的網(wǎng)絡(luò)服務(wù)。ONOS是當下最流行的SDN控制器之一,也是一款真正站在運營商的角度來設(shè)計的一款控制器,本文研究的平臺基礎(chǔ)正是ONOS。ONOS在后續(xù)的發(fā)布版本中支持網(wǎng)絡(luò)虛擬化技術(shù)也是一個趨勢。本文就網(wǎng)絡(luò)虛擬化映射在SDN中的實現(xiàn)問題作為研究方向,主要研究了以下兩方面的內(nèi)容:(1)結(jié)合虛擬網(wǎng)絡(luò)映射算法的研究現(xiàn)狀,在充分分析了現(xiàn)有算法的優(yōu)缺點之后,在節(jié)點映射的過程中將節(jié)點局部區(qū)域的可用拓撲資源情況考慮在內(nèi),提出了區(qū)域拓撲感知的虛擬網(wǎng)絡(luò)映射算法,有效提高了虛擬網(wǎng)絡(luò)映射請求的接收率以及底層物理網(wǎng)絡(luò)的平均收益。(2)深入研究ONOS的分布式性能以及ONOS的整體結(jié)構(gòu),在此基礎(chǔ)之上,在ONOS中設(shè)計并實現(xiàn)了一個虛擬網(wǎng)絡(luò)映射系統(tǒng),在映射系統(tǒng)中實現(xiàn)區(qū)域拓撲感知的虛擬網(wǎng)絡(luò)映射算法,完成了ONOS支持網(wǎng)絡(luò)虛擬化技術(shù)的重要環(huán)節(jié),并考慮到了后續(xù)完善擴展成一個完整的網(wǎng)絡(luò)虛擬化系統(tǒng)。并通過接口測試,該虛擬化映射系統(tǒng)能夠有效的響應虛擬網(wǎng)絡(luò)映射請求。
[Abstract]:With the rapid development of the Internet, the emergence of various new services, such as the convergence of three networks, cloud computing, big data and so on, the traditional network architecture of the "rigid" problem is increasingly prominent, more and more can not meet the needs of the current Internet business. The idea of software defined network SDN and network virtualization is to separate the control plane from the data plane and develop independently. Network virtualization is the abstraction of the underlying physical network resources so that multiple virtual networks can be deployed on the same physical network, which are independent of each other. It is possible to deploy different network protocols and network services. SDN can effectively solve the problem of "rigidity" of network architecture, and network virtualization technology can make more effective use of network resources. It makes the deployment and operation of new network services more convenient. SDN abstracts the physical network resources, pools the concept of network virtualization technology centralized control, software application control of the entire virtual network. Network virtualization is easier in SDN networks, and the most suitable area for SDN is network virtualization applications in data centers. Therefore, the combination of network virtualization and SDN can better serve the endless network services. ONOS is one of the most popular SDN controllers, and it is also a controller designed from the point of view of the operators. The platform foundation of this paper is that ONOS.ONOS supports network virtualization technology in subsequent releases. In this paper, the implementation of network virtualization mapping in SDN as a research direction, mainly studied the following two aspects of the content: 1) combined with the status quo of virtual network mapping algorithm, after a full analysis of the advantages and disadvantages of existing algorithms, In the process of node mapping, taking into account the available topological resources in the local region of nodes, a regional topology aware virtual network mapping algorithm is proposed. It effectively improves the receiving rate of virtual network mapping requests and the average income of the underlying physical network.) the distributed performance of ONOS and the overall structure of ONOS are deeply studied. In this paper, a virtual network mapping system is designed and implemented in ONOS. In the mapping system, a region topology aware virtual network mapping algorithm is implemented. The important link of ONOS supporting network virtualization technology is completed. And considering the subsequent improvement into a complete network virtualization system. The virtual mapping system can respond to the virtual network mapping request effectively.
【學位授予單位】：電子科技大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TP393.0

【參考文獻】

相關(guān)期刊論文 前2條

1 張朝昆;崔勇;唐，

本文編號：1834933