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While internet usage soars, internet users want more robust and quicker content delivery. In order to meet requirements of today’s internet business enabling users to access the most available content is essential. Scalability, high availability and performance are critical to the success of any major commercial web network.
A typical content delivery environment included replicating web server clusters located at the edge of a network where end users are connected. In this CDN structure, web content based on user requests are 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 a replicated CDN server nearest to them. ARA Networks global load balancing solution provides a total solution for large distributed web infrastructures.
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| Benefits of Smart GLB |
Faster and high quality delivery of content to end users.
Network optimization by directing requests based on factors such as system load and network delay.
Lower installation and management costs of other devices per CDN POP.
Easily scalable CDN deployment.
Increase in availability of the CDN service and higher quality of service for content providers and end users.
Smart GLB is a simple and highly scalable solution for global request management.
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| Challenges with CDN |
| Many enterprises try to scale capacity by deploying additional servers and infrastructure at a single location. But these centralized architectures are subject to many inherent limitations. Centralized web infrastructures present a single point of failure in the internet topology. If a site loses connectivity to any part of the public internet, the site will be inaccessible to end users. Quality of service is also highly sensitive to bandwidth bottlenecks and congestion in the proximity of the site. As well users accessing the site from geographically or topologically distant locations may experience large and variable delays. These are exacerbated by the large number of round trips that the HTTP requires to transfer web content. The centralized architecture is not appropriate for global companies that serve localized content to 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. SMAR GLB serves content from several different points in the internet topology. It alleviates the impact of network bandwidth bottlenecks and provides robustness in the 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 time of the request. This will minimize long download delays and service disruptions.
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