本文選題：內(nèi)容分發(fā)網(wǎng)絡(luò) + Web平臺��； 參考：《華東理工大學(xué)》2014年碩士論文

【摘要】：通信技術(shù)、Web應(yīng)用技術(shù)、無線互聯(lián)網(wǎng)的發(fā)展,以及各種運營商的介入,使得網(wǎng)絡(luò)間路由越來越復(fù)雜,跨運營商訪問速度越來越緩慢。同時給視頻,網(wǎng)頁等網(wǎng)絡(luò)服務(wù)帶來的挑戰(zhàn)也越來越嚴峻。 CDN(Content Delivery Network)(?)內(nèi)容分發(fā)網(wǎng)絡(luò)。是以互聯(lián)網(wǎng)為基礎(chǔ)的專業(yè)化綜合平臺,通過應(yīng)用層的內(nèi)容智能路由,自動保證用戶實現(xiàn)就近訪問,從而提高了服務(wù)訪問速度,為網(wǎng)站提供了高效、穩(wěn)定、安全的內(nèi)容和應(yīng)用服務(wù)。 在Web應(yīng)用大規(guī)模使用CDN的同時,CDN加速后質(zhì)量的好壞備受關(guān)注。傳統(tǒng)測速方式一般是在想要監(jiān)測的網(wǎng)頁內(nèi)容添加Javascript監(jiān)測代碼(一種基于對象和事件驅(qū)動并且具有高安全性的客戶端腳本語言),當(dāng)用戶訪問時會向服務(wù)端發(fā)送監(jiān)測數(shù)據(jù)。這種被動監(jiān)測的測速方式存在很多缺點,比如得不到TCP建立連接的時間,比如Javascript代碼沒有執(zhí)行,導(dǎo)致無法獲得數(shù)據(jù)。針對這些缺點,本文首先提出了一種主動測速方式,模擬真實用戶行為,自主研發(fā)監(jiān)測客戶端,訪問被監(jiān)測頁面。然后,設(shè)計了一種基于Web平臺的CDN監(jiān)測系統(tǒng)。運用自主研發(fā)客戶端主動監(jiān)測和傳統(tǒng)Javascript被動監(jiān)測相結(jié)合的方式,使收集的數(shù)據(jù)更加全面。收集完數(shù)據(jù)后,經(jīng)過歸類分析,從速度、時間段、省份、運營商等幾個方面可視化地展現(xiàn)各維度分析模型,從而能夠全面分析CDN的質(zhì)量。
[Abstract]:Communication technology Web application technology, the development of wireless Internet, as well as the involvement of various operators, make inter-network routing more and more complex, cross-operator access speed is becoming more and more slow. At the same time to video, web pages and other network services brought more and more serious challenges. CDN(Content Delivery Network) Content distribution network. Is a professional comprehensive platform based on the Internet, through the application layer of the content intelligent routing, automatically ensure that users can access the nearest, thus improving the speed of service access, providing a high efficiency and stability for the website, Secure content and application services. At the same time, the quality of Web accelerated by CDN has attracted much attention. The traditional method of speed measurement is to add Javascript monitoring code to the content of the web page to be monitored (a client-side scripting language with high security based on object and event driven, which sends monitoring data to the server when the user accesses it). This passive speed measurement method has many disadvantages, such as the time when the TCP is not connected, such as the Javascript code is not executed, resulting in the lack of access to data. Aiming at these shortcomings, this paper first proposes an active speed measurement method, simulates the real user behavior, independently develops the monitoring client, and visits the monitored page. Then, a CDN monitoring system based on Web platform is designed. By combining active monitoring with traditional Javascript, the collected data are more comprehensive. After collecting the data, the model can be visualized from several aspects, such as speed, time period, province, operator and so on, so that the quality of CDN can be comprehensively analyzed.
【學(xué)位授予單位】：華東理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TP274;TP393.09

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