本文選題：局域網(wǎng) + 流量監(jiān)測　； 參考：《山東大學》2014年碩士論文

【摘要】：從現(xiàn)在到可預見的未來,各機構(gòu)局域網(wǎng)在初具規(guī)模的基礎上將持續(xù)擴展,網(wǎng)絡拓撲結(jié)構(gòu)日益復雜,由網(wǎng)絡病毒、設備故障、用戶行為引起的流量異常頻發(fā)甚至常態(tài)化。鑒于網(wǎng)絡在辦公管理信息化方面的基礎地位不可動搖,對網(wǎng)絡流量的監(jiān)測勢在必行。針對已有網(wǎng)絡流量監(jiān)測軟件的功能、特性與不足,以開源軟件Cacti為基礎并創(chuàng)新性結(jié)合WebGIS進行局域網(wǎng)流量監(jiān)測系統(tǒng)設計與實現(xiàn)。首先,明確研究背景和意義,比較分析各商業(yè)及開源網(wǎng)絡監(jiān)測軟件的優(yōu)劣,在總結(jié)不足、辨析發(fā)展態(tài)勢的基礎上理順本文研究內(nèi)容、思路及技術(shù)路線；其次,選擇濟寧移動公司局域網(wǎng)為研究對象,對其網(wǎng)絡現(xiàn)狀進行剖析,在此基礎上進行需求分析,確定普通用戶和管理員用戶的不同需求,分解各功能模塊；接著,利用地理信息系統(tǒng)和遙感技術(shù)將現(xiàn)實空間的網(wǎng)絡、建筑等進行數(shù)字化,利用模型對其進行抽象；然后,運用SNMP命令采集流量等數(shù)據(jù),收集到RRD中,編寫讀寫代碼獲取RRD數(shù)據(jù)并持久化到PostgreSQL數(shù)據(jù)庫,確保數(shù)據(jù)的完備性和精確性；最后,結(jié)合j Query和OpenLayers實現(xiàn)監(jiān)控界面,PHP執(zhí)行后臺邏輯,將流量等數(shù)據(jù)以點-線形式一方面呈現(xiàn)在以GeoServer為地圖服務器的空間拓撲圖上,另一方面呈現(xiàn)在以D3為可視化庫的邏輯拓撲圖上,并以柱狀圖、餅圖、折線圖等方式匯總數(shù)據(jù),顯示其歷史與趨勢。系統(tǒng)仿真表明,普通用戶通過此系統(tǒng)可以查詢本端口實時、歷史流量及相關數(shù)據(jù),管理員用戶通過此系統(tǒng)可以掌握局域網(wǎng)內(nèi)各端口流量及相關數(shù)據(jù),并對各類數(shù)據(jù)進行統(tǒng)計分析。結(jié)果驗證了Cacti和WebGIS的耦合在局域網(wǎng)流量監(jiān)測方面的實效性,通過分析流量等特征可探索用戶行為,能為未來的網(wǎng)絡設計和優(yōu)化提供參考依據(jù)。
[Abstract]:From now to the foreseeable future, the local area networks of various organizations will continue to expand on the basis of initial scale. The network topology structure is becoming more and more complex, and the abnormal traffic caused by network viruses, equipment failures, user behavior and even normality. In view of the basic position of network in office management information, it is imperative to monitor network traffic. In view of the functions, characteristics and shortcomings of the existing network traffic monitoring software, the design and implementation of a LAN traffic monitoring system based on the open source software Cacti and the innovative combination of WebGIS are presented. First of all, clear the research background and significance, compare and analyze the advantages and disadvantages of various commercial and open source network monitoring software, and straighten out the research content, train of thought and technical route on the basis of summarizing the deficiency and discriminating the developing situation. The local area network of Jining Mobile Company is selected as the research object, and the present situation of the network is analyzed. On this basis, the different needs of ordinary users and administrator users are determined, and the functional modules are decomposed. Using GIS and remote sensing technology to digitize the real space network, architecture and so on, using the model to abstract it, then, using SNMP command to collect the data, such as traffic, to collect into the RRD. Write read and write code to get RRD data and persist to PostgreSQL database to ensure the completeness and accuracy of the data. On the one hand, the traffic data is presented in the form of point-line, on the one hand, on the spatial topology map with GeoServer as the map server, on the other hand, on the logical topology diagram with D3 as the visual library, and the data is summarized in the form of histogram, pie chart, broken line diagram and so on. Show its history and trend. The system simulation shows that ordinary users can query the real-time, historical flow and related data of this port through this system, and administrator users can master the flow and related data of each port in LAN through this system. And statistical analysis of all kinds of data. The results verify the effectiveness of the coupling of Cacti and WebGIS in local area network traffic monitoring. By analyzing the characteristics of traffic, we can explore user behavior and provide a reference for future network design and optimization.
【學位授予單位】：山東大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TP393.06;TP393.1

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本文編號：2096158