Evaluation factors to consider when purchasing high-performance webcache cache Equipment

 

1.1 Broadband User Demand Analysis Faced with the powerful resource advantages of mainstream broadband operators (China Telecom and China Unicom), mobile and radio/TV are in an unfavorable situation. It may be difficult to apply for and use a line. At the same time, communication between China Telecom and China Unicom is slow Slow access to overseas sites will result in a decline in user experience. At the same time, universities, vocational colleges, and large enterprises that use a large amount of bandwidth will face the same problems. Through the analysis in the following sections, we believe that, Using HTTP-based Cache will significantly reduce the application of small data packets based on HTTP, help significantly optimize customer experience and save a lot of bandwidth resources. At the same time, HTTP-based Cache will solve the problem of online The problem of web video greatly improves the customer experience of online video. At the same time, other parts of the video content using the P2P protocol are not valid because large video websites such as thunder adopt encryption algorithms. P2pcache solution, it is recommended to contact the original service provider to obtain its authorized backup storage. Before purchasing high-performance accelerated Web Cache devices and optimizing your operating network, you must understand the core technology difficulties. Point-problems faced by large-traffic HTTP packets: 1. The cost of short connections formed by a large number of HTTP packets. 2. The massive pressure on the storage media caused by frequent reading of a large number of HTTP packets. As a second-line carrier, the HTTP traffic operated by the current network is at 1 GB. The products tested before the purchase are the 3000 series of maratten in Germany and the 5000 Series of bluecoat in the United States. Among them, the maximum traffic of the 3000 series in Germany is that the HTTP packet processing capability can be up to 1.5 Gbps, and the maximum traffic of the 5000 Series in the United States is 500 Mbps, The storage structure of the 3000 series in Germany's maratten is three layers (memory, accelerator card, large-capacity disk ), The 5000 Series storage structure of bluecoat in the United States is two-layer (memory, large-capacity disk) From the storage structure analysis, the storage efficiency of the 3000 series in Germany will be better than that of the 5000 Series in the United States, its multi-layer storage (Hotspot access in memory, packets smaller than Kb are stored on the accelerator card, and packets larger than Kb are stored on the disk. In this way, packets of several B or several K are not discarded in different modes, instead, it is handed over to the accelerator card for access. For more details, visit the Chinese official websites of the two companies. Http: // www. marasystem. com. cn Http: // www. bluecoat. com 1.2 Current network application protocol and user group analysis According to statistics, the basic applications of users accessing the Internet are classified as follows:   1.3 Internet P2P Traffic and HTTP traffic Packet Analysis Currently, most Internet traffic is divided into two categories: HTTP traffic and P2P Traffic. Http packets are generally small, ranging from 10b to 512 KB. P2P packets are relatively large, ranging from 1 Mbit/s to 2 Mbit/s.   It can be analyzed that P2P-based traffic is mainly characterized by large data packets and universal encryption. HTTP data packets are small and not encrypted. 1.4 analyze the frequency of Website access by users Based on the statistical analysis results of our deployment through cachemara, the findings directly affect users' evaluation of network quality. They mainly focus on applications such as news websites, search engines, financial websites, online malls, corporate websites, and forums, the response packet of the data should be around 70% Kb from 10b to KB. In this case, the proportion of the webpage request type of the data packet among all application request types is very high, which accounts for about 60-of the total, most adults will focus on these applications. According to the statistical analysis result of cachemara deployment, the traffic of the first 100 websites accounts for 70%-80% of the total traffic. Websites mainly include news websites, search engines, online malls, forums, online web videos, online games based on web access, including food stealing, Flash games, and HTTP file downloads. Top 10 websites:   1.5 Internet user behavior analysis summary and Suggestions   Through the analysis of Internet customers and mobile network features in the above sections, we propose the following suggestions: 1. Provides the HTTP cache service to quickly improve user experience and significantly reduce bandwidth requirements. 2. establish cooperation with P2P application vendors such as PPLIVE, PPStream, qqlive, and thunder to build servers of P2P series images (PPLIVE, PPStream, qqlive, and thunder) on the Internet, avoid technical difficulty and infringement during the cracking process.