發(fā)布時(shí)間：2019-05-19 16:56

【摘要】：網(wǎng)絡(luò)拓?fù)浒l(fā)現(xiàn)一直是近年來(lái)的研究熱點(diǎn),基于這個(gè)基礎(chǔ),可以進(jìn)行推斷或計(jì)算網(wǎng)絡(luò)性能指標(biāo)、評(píng)價(jià)網(wǎng)絡(luò)行為等進(jìn)一步的工作。尤其是在網(wǎng)絡(luò)安全領(lǐng)域,拓?fù)浒l(fā)現(xiàn)已經(jīng)成為網(wǎng)絡(luò)安全評(píng)估系統(tǒng)不可或缺的組成部分。云計(jì)算近幾年迅猛發(fā)展,由于各方面尚未成熟,伴隨著其快速發(fā)展的是不可忽視的安全問(wèn)題。因此,云計(jì)算系統(tǒng)的拓?fù)浒l(fā)現(xiàn)算法的研究和工具的實(shí)現(xiàn)無(wú)論對(duì)于云計(jì)算提供商、安全評(píng)估系統(tǒng)開(kāi)發(fā)商還是用戶,都具有重要意義。 本課題廣泛調(diào)研傳統(tǒng)網(wǎng)絡(luò)的拓?fù)浒l(fā)現(xiàn)算法,傳統(tǒng)網(wǎng)絡(luò)的拓?fù)浒l(fā)現(xiàn)算法目前已經(jīng)比較成熟,其基本思想是基于各種路由協(xié)議,提取網(wǎng)絡(luò)節(jié)點(diǎn)與其他節(jié)點(diǎn)的連接信息,將采集到的數(shù)據(jù)進(jìn)行整合分析,得到網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu)。但是因?yàn)樵朴?jì)算系統(tǒng)的特殊性,把這種方法直接移植到云計(jì)算環(huán)境是不可行的,需要深刻分析云計(jì)算系統(tǒng)的拓?fù)涮匦?在已有拓?fù)浒l(fā)現(xiàn)算法的基礎(chǔ)上,進(jìn)行改進(jìn),使之適用于主流云計(jì)算環(huán)境。 由于云計(jì)算系統(tǒng)與傳統(tǒng)網(wǎng)絡(luò)系統(tǒng)在拓?fù)浣Y(jié)構(gòu)方面的一個(gè)重要區(qū)別是由于云計(jì)算網(wǎng)絡(luò)規(guī)模龐大,設(shè)備遍布世界各地,因此對(duì)拓?fù)浒l(fā)現(xiàn)算法的時(shí)延、收斂性都有更高的要求。如何使拓?fù)浒l(fā)現(xiàn)算法適應(yīng)這個(gè)要求,是解決問(wèn)題的關(guān)鍵。同時(shí)因?yàn)橐?guī)模龐大,如何對(duì)巨大的拓?fù)鋱D進(jìn)行合理展示也是重要問(wèn)題。 基于上述問(wèn)題,本課題提出了有效的基于云計(jì)算的拓?fù)浒l(fā)現(xiàn)算法,對(duì)上述問(wèn)題進(jìn)行了有效解決,并設(shè)計(jì)實(shí)現(xiàn)了拓?fù)浒l(fā)現(xiàn)工具。 本文首先闡述了課題的研究背景,對(duì)拓?fù)浒l(fā)現(xiàn)的相關(guān)背景、云計(jì)算拓?fù)湎嚓P(guān)技術(shù)進(jìn)行了簡(jiǎn)要概述。對(duì)傳統(tǒng)網(wǎng)絡(luò)的拓?fù)浒l(fā)現(xiàn)算法進(jìn)行了分析,再此基礎(chǔ)上提出了基于云計(jì)算系統(tǒng)的拓?fù)浒l(fā)現(xiàn)算法,最后詳細(xì)介紹了基于此算法的拓?fù)浒l(fā)現(xiàn)工具的各個(gè)模塊的設(shè)計(jì)及實(shí)現(xiàn)。
[Abstract]:Network topology discovery has always been a hot research topic in recent years. On this basis, further work can be done to infer or calculate network performance indicators, evaluate network behavior, and so on. Especially in the field of network security, topology discovery has become an indispensable part of network security assessment system. Cloud computing has developed rapidly in recent years, because all aspects are not yet mature, accompanied by its rapid development is a security problem that can not be ignored. Therefore, the research of topology discovery algorithm and the implementation of tools are of great significance to cloud computing providers, security assessment system developers and users. In this paper, the topology discovery algorithm of traditional network is widely investigated. The topology discovery algorithm of traditional network has been relatively mature at present. Its basic idea is to extract the connection information between network nodes and other nodes based on various routing protocols. The collected data are integrated and analyzed, and the network topology is obtained. However, because of the particularity of cloud computing system, it is not feasible to migrate this method directly to cloud computing environment. It is necessary to deeply analyze the topological characteristics of cloud computing system and improve it on the basis of the existing topology discovery algorithm. Make it suitable for mainstream cloud computing environment. Because cloud computing system and traditional network system have an important difference in topology structure because of the large scale of cloud computing network and the spread of equipment all over the world, there are higher requirements for the delay and convergence of topology discovery algorithm. How to make the topology discovery algorithm adapt to this requirement is the key to solve the problem. At the same time, because of the large scale, how to display the huge topology graph is also an important problem. Based on the above problems, this paper proposes an effective topology discovery algorithm based on cloud computing, solves the above problems effectively, and designs and implements a topology discovery tool. In this paper, the research background of the subject is described, and the related background of topology discovery and cloud computing topology related technology are briefly summarized. Based on the analysis of the traditional network topology discovery algorithm, a topology discovery algorithm based on cloud computing system is proposed. Finally, the design and implementation of each module of the topology discovery tool based on this algorithm are introduced in detail.
【學(xué)位授予單位】：北京郵電大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TP393.02

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