Network Communications News (NCN) October 2017 - Page 19

THE KNOWLEDGE NETWORK every regional ISP? The simple answer, economics. For Netflix, each point of presence is the cost of a single server (between $10,000 and $20,000), but deploying caching for a multitude of customers and content types would require hundreds of servers per location. Furthermore, since Netflix directly controls the end user application, the complex logic for determining when to stream from a Netflix server can be built into the application itself. If we wanted to accelerate arbitrary websites – we would need a way to help ‘direct’ the browser to caches inside the local ISP. But a new breed of delivery platforms has seemingly cracked the code – using peer to peer assisted networks. Deliver like Netflix: Peer assisted content delivery networks In a peer to peer (P2P) model, devices communicate directly with each other rather than centralised ser vers. This is the model employed by most video chat systems (FaceTime, WhatsApp Etc.). By leveraging P2P technology, and combining this with browsers that are already built in cache, peer assisted CDN’s such as Edgemesh are able to offer a Netflix style localised delivery to customers, without the complexity of deploying in-situ server infrastructure. Peer accelerated CDN’s utilise the browser native Web Real Time Communications (WebRTC) protocol to enable direct browser to Netflix takes an innovative approach to getting content to its customers browser connectivity. Once content is downloaded into a regional network, it can then be replicated across other devices transparently – allowing multiple users to access the same content without ever leaving the local networks. For Edgemesh, 100% of the required functionality is delivered in the browser. This allows customers to add mesh capability with no additional software installation content viewers. Unlike traditional models, where chokepoints exhibit the worst per formance precisely when the most users are active – mesh networks have reverse scaling. The more users who access the content, the larger the overall network capacity and the faster the experience comes. Stretching across more than 100 countries, mesh acceleration results are surprisingly consistent. P2P accelerated content is delivered on average 32% faster than traditional CDNs alone, while reducing backbone bandwidth by up to 90%. In summary, we are still in the early days of the edge computing revolution, but with data rates continuing to explode and the army of IoT on the horizon – the mesh network model is changing the way the internet works. More information: Edgemesh edgemesh.com October 2017 | 19