【摘要】：隨著計(jì)算機(jī)技術(shù)的發(fā)展,移動(dòng)終端設(shè)備日益小型化,移動(dòng)自組網(wǎng)絡(luò)(MANET)的應(yīng)用領(lǐng)域也得到極大擴(kuò)展,人們對(duì)MANET的靈活性提出了更高的要求。而以TCP/IP為核心的網(wǎng)絡(luò)架構(gòu),其控制平面和轉(zhuǎn)發(fā)平面的功能固化在網(wǎng)絡(luò)設(shè)備中,阻礙了新型網(wǎng)絡(luò)應(yīng)用的快速設(shè)計(jì)與部署。軟件定義網(wǎng)絡(luò)(SDN)采用了控制與轉(zhuǎn)發(fā)相分離的架構(gòu),并通過(guò)OpenFlow等協(xié)議實(shí)現(xiàn)網(wǎng)絡(luò)的集中式控制。首先,論文分析了MANET的業(yè)務(wù)需求、SDN技術(shù)的主要特點(diǎn)以及OpenFlow關(guān)鍵技術(shù),針對(duì)異構(gòu)互通、路由靈活配置和業(yè)務(wù)的區(qū)分服務(wù),提出了一種軟件定義移動(dòng)自組網(wǎng)(SDMANET)的技術(shù)方案,包括MANET網(wǎng)絡(luò)層、網(wǎng)絡(luò)操作系統(tǒng)(NOS)層和應(yīng)用層,用于將MANET控制從轉(zhuǎn)發(fā)平面分離并集中到控制節(jié)點(diǎn)。其次,論文分析了OpenFlow協(xié)議的功能需求,以及Android和Linux操作系統(tǒng)的差異性,在內(nèi)核層面,通過(guò)無(wú)線接口啟用、最優(yōu)鏈路狀態(tài)路由(OLSR)協(xié)議模塊和路由表控制模塊的跨系統(tǒng)重編,構(gòu)建了OpenFlow轉(zhuǎn)發(fā)節(jié)點(diǎn)的功能基礎(chǔ)。論文給出了OpenFlow協(xié)議模塊調(diào)用基礎(chǔ)功能的軟件接口定義和程序設(shè)計(jì)方法,采用Eclipse(版本Juno)開(kāi)發(fā)了OpenFlow轉(zhuǎn)發(fā)節(jié)點(diǎn)原型,可安裝部署于Android智能手機(jī)或平板電腦。論文進(jìn)一步基于PC/Ubuntu平臺(tái)開(kāi)發(fā)了SDMANET控制器軟件,通過(guò)OpenFlow協(xié)議控制Android轉(zhuǎn)發(fā)節(jié)點(diǎn)的路由轉(zhuǎn)發(fā)和業(yè)務(wù)流調(diào)度,實(shí)現(xiàn)了SDMANET的NOS層。最后,論文針對(duì)OSLR協(xié)議、控制與轉(zhuǎn)發(fā)節(jié)點(diǎn)的OpenFlow協(xié)議交互、接納控制、差異性服務(wù)等六項(xiàng)功能,設(shè)計(jì)了測(cè)試用例和一個(gè)4節(jié)點(diǎn)的組網(wǎng)測(cè)試場(chǎng)景,綜合運(yùn)用wireshark分析軟件、traceroute工具和自行設(shè)計(jì)的調(diào)測(cè)軟件開(kāi)展測(cè)試工作,給出了詳細(xì)的實(shí)驗(yàn)測(cè)試過(guò)程和結(jié)果,驗(yàn)證了SDMANET原型系統(tǒng)的功能。
[Abstract]:With the development of computer technology, mobile terminal devices are becoming smaller and smaller, and the application field of mobile ad hoc network (MANET) has been greatly expanded. People have put forward higher requirements for the flexibility of MANET. The function of the control plane and the forwarding plane of the network architecture with TCP/IP as the core is solidified in the network equipment, which hinders the rapid design and deployment of the new network application. The software defined network (SDN) adopts the architecture of separation of control and forwarding, and realizes the centralized control of the network through OpenFlow and other protocols. Firstly, this paper analyzes the main characteristics of MANET service requirement and the key technology of OpenFlow. Aiming at heterogeneous interworking, flexible routing configuration and differentiated service of services, this paper proposes a technical scheme to define (SDMANET) in mobile ad hoc network by software. It includes MANET network layer, network operating system (NOS) layer and application layer, which is used to separate and centralize MANET control from forwarding plane to control node. Secondly, the paper analyzes the functional requirements of OpenFlow protocol, and the differences between Android and Linux operating system. At the kernel level, the optimal link-state routing (OLSR) protocol module and routing table control module are reprogrammed across systems through wireless interface enabled. The function foundation of OpenFlow forwarding node is constructed. In this paper, the software interface definition and programming method of OpenFlow protocol module calling basic function are given. The prototype of OpenFlow forwarding node is developed by using Eclipse (version Juno), which can be installed on Android smart phone or tablet computer. In this paper, the SDMANET controller software is developed based on PC/Ubuntu platform. The routing and traffic scheduling of Android forwarding node is controlled by OpenFlow protocol, and the NOS layer of SDMANET is implemented. Finally, aiming at the six functions of OSLR protocol, OpenFlow protocol interaction between control and forwarding node, admission control, difference service and so on, a test case and a four-node network test scenario are designed. The test work is carried out by using the wireshark analysis software and the self-designed test software. The detailed test process and results are given, and the function of the SDMANET prototype system is verified.
【學(xué)位授予單位】：南京郵電大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：TN915.05

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