![]() ![]() ![]() Internet video consumption started in the late 1990s, and OTT streaming services have accelerated the growth in online video consumption. Online video viewership really increased the demand for CDN services. These caches often use address space originating in the ISP’s ASN and not in the CDN’s. We call such caches “embedded caches.” They are usually intended only to serve end users in that network. This idea was novel and still challenges the mindset of network operators today. The need to have the content close to the content consumers fostered the idea of placing caches belonging to the CDN inside the access network’s network border. End users get a higher-quality viewing experience, and it reduces expensive traffic on those backbone networks. It makes logical sense to store this content locally when first requested and then serve it to subsequent African viewers locally. has many visitors from Africa, it isn’t efficient to be sending that content across multiple terrain and submarine cables to reach the end user every time it’s requested. Most website publishers use CDN services to deliver their sites and applications to ensure reliable and responsive performance for their end users. The purpose of a CDN is to place the data-heavy content or latency-sensitive content as close to the content consumers as possible – in whatever sense close means. A method to steer end users to the closest caches.A method to place content on the caches.A collection of geographically distributed caches.Akamai was one of the first CDNs and remains a strong player in today’s market. Content distribution networks are a type of network that emerged in the 90s, early in the internet’s history, when content on the internet grew “richer” – moving from text to images and video. ![]()
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