background analysis
EasyDSS streaming solution provides one-stop transcoding, on-demand, live recording, retrieval, playback time-shifted services, which greatly simplifies the development and integration work, and EasyDSS supports a variety of features, fully able to meet corporate video information demand for building. In which third-party retweet function is EasyDSS software product support and CDN, other streaming media services docking.
CDN content distribution network, specifically what does it mean? What are the specific service provider have?
1. CDN explanation
| Excerpt | Explanation |
|---|---|
| Wikipedia | CDN (Content delivery network or Content distribution network, abbreviation: CDN) refers to a computer network system interconnected through the Internet, using the server closest to each user, faster and more reliably music, pictures, videos , applications and other documents sent to the user, provide high performance, scalability, and cost can be transmitted content to the user network. |
| Baidu Encyclopedia | CDN stands for Content Delivery Network, ie, content delivery network. The basic idea is as far as possible to avoid bottlenecks and links may affect the data transmission speed and stability of the Internet, the content delivery faster and more stable. By placing a layer of intelligence on the existing Internet-based server nodes throughout the network composed of the virtual network, in accordance with the CDN system capable of real-time and network traffic of each node connected to the load conditions and the user's response time and the distance and other comprehensive information to the user's request to redirect the service node closest to the user. Its purpose is to enable users to obtain the required content of the nearest address the Internet network congestion condition and improve the response speed of the user access to the site. |
It can be seen CND is a content service provider, is transmitted to the user accelerated stability. Under what circumstances we need to use CDN services?
Summarized in the following cases:
- Performance bandwidth of the server's own restrictions;
- A larger number of end-users;
- Shorten the response time, speed up content delivery;
2. CND service scene
In general, all in order to enhance the user experience.
CDN service scenarios include:
- Static content acceleration
- Demand accelerated
- Live acceleration
3. CND service providers
| CDN service providers | description |
|---|---|
| Netease hive | CDN (Content Delivery Network, referred to as CDN), the source content synchronized across the country to the edge nodes, with precise scheduling system, the user's request to allocate the most suitable for his node, so that users can get him as fast as the desired content to address the network bandwidth is small, user access to large, uneven distribution network problems and improve the response speed of user access. |
| Ali Cloud | The source station to the content distribution node closest to the user, so the user can conveniently obtain desired content, improve the response speed and the success rate of user access. Address the distribution, bandwidth, server performance brings access latency problem for accelerating the site, on-demand, broadcast and other scenes. |
| Seven cattle cloud | CDN integration is implemented on the basis of the traditional CDN to accelerate further optimization of data network convergence management services. In addition to audio and video on demand service, files, applications, and Web acceleration, and a variety of value-added scene outside, seven cattle fusion CDN CDN through a full range of quality control, and intelligent use of accelerated node scheduling and other functions to ensure continuous customer service , providing stable and fast network access quality. |
4 shows the acceleration demand streaming column
Detailed Description of streaming media required to accelerate the main function and design principles, no more than 3 seconds is first accelerated audio and video buffer time, broadcast services require low latency, delay the RTMP less than 5 seconds, HLS delay is less than 15S; CDN service independently the completion of the tender side streaming service extension support, that with the growth of streaming media services business, the source station without adding streaming media server;
- With a variety of anti-hotlinking function, ensure that the content resources are not malicious references to other people when passing CDN distribution or downloaded unauthorized users.
- CDN service needs to support live time-shift, time shift and the time can be customized; banned streaming service required function with source Cache Block the content CDN node can be realized immediately banned.
- Live service requires the ability to achieve RTMP input, output HLS, and HLS output enables multi-rate adaptive; Transfer Protocol support HLS http, supports high and low bit rate; CDN services need to improve client adapter Party; required to provide services availability average of 99.9%.
About EasyDSS streaming media server
EasyDSS streaming media solutions by Anhui Xu Fan Information Technology Co., Ltd. independent research and development of a set of on-demand streaming, transcoding, management, live video, search, time-shifting playback in one complete set of commercial streaming media solutions Program. Anhui Xu Fan Information Technology Co., Ltd. has been committed to the field of audio and video streaming media technology research and development, establishment and maintenance of easydarwin open source projects since 2012 the development so far, with many years of technical experience in the field of streaming audio and video, has now developed become the industry leading technology and experienced R & D and technology of streaming media services team. The solution consists of EasyDSS It accumulated over the years and developed a new set of commercial, powerful high-performance streaming media EasyDarwin project. More EasyDSS related functions and versions Download : http://www.easydss.com
