【摘要】：隨著互聯(lián)網(wǎng)服務(wù)的普及,網(wǎng)絡(luò)上各個(gè)環(huán)節(jié)的帶寬越來越大,國際出口的帶寬和國內(nèi)運(yùn)營商之間互聯(lián)網(wǎng)帶寬也同步成指數(shù)趨勢增長。伴隨著帶寬的增長,網(wǎng)絡(luò)上的業(yè)務(wù)和應(yīng)用也不斷的豐富。與此同時(shí),網(wǎng)絡(luò)攻擊的成本和技術(shù)門檻大幅下降,網(wǎng)絡(luò)上的各種攻擊和異常流量大量出現(xiàn)。在這種流量成分日益復(fù)雜,異常流量海量涌現(xiàn)的情況下,網(wǎng)絡(luò)管理系統(tǒng)必須引入新的技術(shù)手段對(duì)網(wǎng)絡(luò)流量進(jìn)行深入分析從而全面了解流量的各種分布以及變化趨勢。本文首先對(duì)異常網(wǎng)絡(luò)流量分析的概念、國內(nèi)外研究現(xiàn)狀及發(fā)展趨勢進(jìn)行了討論,介紹了幾種異常網(wǎng)絡(luò)流量檢測的方法、對(duì)異常網(wǎng)絡(luò)流量的控制,并介紹了基于異常網(wǎng)絡(luò)流量分析的網(wǎng)絡(luò)管理系統(tǒng)。通過將異常網(wǎng)絡(luò)流量分析應(yīng)用在網(wǎng)絡(luò)管理中,網(wǎng)絡(luò)管理者可根據(jù)網(wǎng)絡(luò)流量的實(shí)際狀況,對(duì)網(wǎng)絡(luò)進(jìn)行優(yōu)化和調(diào)整,降低異常流量造成的危害,保證網(wǎng)絡(luò)的安全運(yùn)行。其次,對(duì)基于異常網(wǎng)絡(luò)流量分析的網(wǎng)絡(luò)管理系統(tǒng)的關(guān)鍵技術(shù)進(jìn)行了討論和分析。依據(jù)對(duì)異常網(wǎng)絡(luò)流量數(shù)據(jù)采集技術(shù)的不同,對(duì)異常網(wǎng)絡(luò)流量檢測技術(shù)進(jìn)行分類;對(duì)網(wǎng)絡(luò)管理的相關(guān)技術(shù)進(jìn)行了介紹,闡述了網(wǎng)絡(luò)管理的現(xiàn)狀、功能組成、管理協(xié)議以及發(fā)展趨勢。最后分析了異常網(wǎng)絡(luò)流量分析技術(shù)在網(wǎng)絡(luò)管理中的應(yīng)用優(yōu)勢,將異常網(wǎng)絡(luò)流量分析技術(shù)和已有的網(wǎng)絡(luò)管理相結(jié)合可以提供對(duì)網(wǎng)絡(luò)故障和性能事件的深入了解,最大化網(wǎng)絡(luò)資源潛力,提升網(wǎng)絡(luò)業(yè)務(wù)整體效益,優(yōu)化網(wǎng)絡(luò)資源利用率。最后,本文根據(jù)系統(tǒng)的概況對(duì)系統(tǒng)的需求進(jìn)行了分析,并根據(jù)需求設(shè)計(jì)了基于異常網(wǎng)絡(luò)流量分析的網(wǎng)絡(luò)管理系統(tǒng)。通過對(duì)項(xiàng)目的總體設(shè)計(jì),將系統(tǒng)的功能結(jié)構(gòu)進(jìn)行劃分,在此基礎(chǔ)上確定了軟件的實(shí)現(xiàn)架構(gòu),經(jīng)過對(duì)軟件的詳細(xì)設(shè)計(jì)、編碼和測試,實(shí)現(xiàn)了基于異常網(wǎng)絡(luò)流量分析的網(wǎng)絡(luò)管理系統(tǒng)。該網(wǎng)絡(luò)管理系統(tǒng)能夠預(yù)示網(wǎng)絡(luò)中流量行為的趨勢,使網(wǎng)絡(luò)管理員能夠根據(jù)流量行為的特點(diǎn),調(diào)整網(wǎng)絡(luò)規(guī)劃,優(yōu)化網(wǎng)絡(luò)資源配置,保證網(wǎng)絡(luò)的高效運(yùn)行。關(guān)鍵詞:網(wǎng)絡(luò)管理,異常流量,流量分析
[Abstract]:With the popularity of Internet services, the bandwidth of each link in the network is increasing, and the bandwidth of international exports and domestic operators is also growing exponentially. Along with the growth of bandwidth, the business and application on the network is becoming more and more abundant. At the same time, the cost and technical threshold of network attacks are greatly reduced, and a large number of attacks and abnormal traffic appear on the network. With the increasing complexity of traffic components and the emergence of massive abnormal traffic, the network management system must introduce new technical means to deeply analyze the network traffic in order to fully understand the distribution of traffic and its changing trend. In this paper, the concept of abnormal network traffic analysis, the current situation and development trend of abnormal network traffic analysis are discussed, and several methods of abnormal network traffic detection are introduced, and the control of abnormal network traffic is introduced. The network management system based on abnormal network traffic analysis is introduced. By applying abnormal network traffic analysis to network management, network manager can optimize and adjust the network according to the actual condition of network traffic, reduce the harm caused by abnormal traffic, and ensure the safe operation of network. Secondly, the key technologies of network management system based on abnormal network traffic analysis are discussed and analyzed. According to the different data acquisition technology of abnormal network traffic, the paper classifies the abnormal network traffic detection technology, introduces the related technologies of network management, expounds the current situation and functional composition of network management. Management agreements and trends. Finally, the advantages of abnormal network traffic analysis technology in network management are analyzed. Combining abnormal network traffic analysis technology with existing network management can provide a deep understanding of network failures and performance events. Maximize the potential of network resources, improve the overall efficiency of network services, optimize the utilization of network resources. Finally, according to the general situation of the system, this paper analyzes the requirements of the system, and designs a network management system based on abnormal network traffic analysis. Through the overall design of the project, the functional structure of the system is divided, and on this basis, the software implementation framework is determined. After the detailed design, coding and testing of the software, A network management system based on abnormal network traffic analysis is implemented. The network management system can predict the trend of traffic behavior in the network, make the network administrator adjust the network planning according to the characteristics of traffic behavior, optimize the allocation of network resources, and ensure the efficient operation of the network. Keywords: network management, abnormal traffic, traffic analysis
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TP393.07

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