HOW CDN works

Tuesday, January 1, 2008 at 12:40PM
HighScalability Team in General Discussion

All,

I'm just new to this and have a basic understanding how CDN works? My questions are:

1. How does CDN sync data with web servers for video/images? If I have a user to upload a video to my site, will it get stored directly in CDN or it comes to my webserver first and then sync-ed with cache server?

2. How to have only the dynamic video/image delivered through CDN while the rest is served by a webserver?
3. How sync happens and who pays for the bandwidth for sync?


I'd appreciate if someone could explain this.
Regards,
Janakan Rajendran

Article originally appeared on (http://highscalability.com/).