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Even while numbers of Internet usage soar, Internet users demand more of fast and stable content delivery. In order to meet this demand in today’s Internet service market, enabling users to access to the most available content is essential. Scalability, high availability, and excellent performance are critical to the success of any major commercial Web network service.
The typical content delivery environment used to include replicating Web server clusters located at edges of a network where end users are connected. In this CDN structure, Web content based on a user’s request is retrieved from the original server, and the user is served with the content from the nearest replicated Web server. Therefore, users communicate and retrieve files from the nearest replicated CDN server. ARA Networks’ Smart GLB can provide total solutions to largely distributed Web infrastructures.
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| Benefits of Smart GLB |
Faster and high quality of content delivery for end users.
Network optimization by directing requests based on factors such as system loads and network delays.
Less installation and management costs compare to other services.
Scalable CDN deployment.
Increase in availability of the CDN service and higher quality of service for content providers and end users.
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| Smart GLB is a simple and highly scalable solution for global request management. |
| Challenges with CDN |
Many enterprises try to measure capacity by deploying additional servers and infrastructure at single locations.
However, these centralized architectures are subject to many inherent limitations. Centralized Web infrastructures present single points of failure in the internet topology. When there is connection loss on any part of the public Internet, a website will become inaccessible to end users. Quality of service is also highly sensitive to bandwidth bottlenecks and congestion in the proximity of the website.
Users accessing the website from geographically or topologically distant locations may experience variable delays. These problems become worse due to a large number of round trips when the HTTP requires transferring Web content. The centralized architecture is not appropriate for global companies which provide service on localized content for users around the world.
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| ARA Networks SMART GLB |
SMART GLB solves these problems by distributing web traffic among a collection of servers deployed in multiple geographic locations.
SMART GLB serves content from several different points in the Internet topology. It alleviates the impact of network bandwidth bottlenecks and provides robustness in case of local server or network failures at particular server sites. Users will be directed to the nearest or least loaded server site at the moments of sending requests. This method will minimize lengths of download delays and service disruptions.
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