From: email@heikorichter.name   
      
   Am 25.05.2015 um 11:03 schrieb Robert Wessel:   
   > On Mon, 25 May 2015 00:44:42 -0700 (PDT), bit-naughty@hotmail.com   
   > wrote:   
   >   
   >> Hello,   
   >> I'm curious as to what a Content Delivery Network is. For example, if   
   someone in China is watching a French TV station, my intuitive idea as to CDNs   
   is that there is some company's *private fiber* between France and China, or   
   maybe somplace else in    
   Asia. And then of course, they have what Youtube calls an "Edge" server, that   
   is, it degrades the video in real time according to the bandwidth, but that's   
   another story.   
   >>   
   >> But doesn't this Fiber cost a LOT of money? How is the whole thing   
   financially viable?   
   >>   
   >> Can anyone explain - give me the *entire* picture of how a CDN works?   
   >   
   >   
   > I seriously doubt any CDNs own private transoceanic cables.  It's   
   > possible, but most intra-CDN traffic runs over (approximately) the   
   > ordinary Internet, or ordinary data links provided by the telcos or   
   > whoever.   
   >   
   > The basic concept behind a CDN is pretty simple.  Rather than serving   
   > all video (or whatever) from your server to end user all over the   
   > world, you instead contract a CDN, which has servers all over the   
   > world, and serve those videos from the nearest CDN server (FSVO   
   > "nearest") the end user.  In turn the central site only has to update   
   > the CDNs servers, and that often is just an update to *one* of the   
   > CDNs servers, which then replicated the content around as necessary.   
   >   
   > But start by reading the following, and feel free to ask follow up   
   > questions.   
   >   
   > https://en.wikipedia.org/wiki/Content_delivery_network   
   >   
      
   Of cource every CDN uses the internet to replicate between their   
   servers. Funny idea to have every CDN dig holes in the ground to lay   
   fire cables around the globe....   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)