In order to avoid too much rush at the server certain networks place copies of the data at different points on the network. This is done so that the bandwidth access of the data is maximized. This system is called CDN or content distribution network or content delivery network. This called content network marketing strategies. The different types of content what types of content included are objects that can be downloaded, objects that are available on the web like media files, documents and software, real time media streams and other components like DNS, routes etc of internet delivery. At times the capacity of the servers that are placed in strategic positions is greater than the capacity of the support of the network. The effect of this is increasing number of users at the same time. If the edge servers are placed at strategic points they reduce the load on the public and private peers and this makes the capacity free. It also ends up reducing the cost of delivering it.
Instead of putting extra load on the peer link, a CDN has the capacity of offloading it by changing the direction to the edge servers. The CDN will normally deliver the content over the top and up connections. In open source cdn the servers near the edge networks so that there is a reduction in both the above parameters. In the normal course the delivery is fast if the placement is close enough. Especially in the remote areas the users will experience little jitter and less network surges and peaks. There is also an improvement in the quality of the stream. Since the CDN is reliable the quality of the hand is improved, the cost incurred is low, and the load of the network is low. Also it is available 100%, even in conditions where the power is large and there are outages of network and hardware. These are some of the content network marketing strategies.
CDNs charge by gab transferred in most cases. If you are only delivering a small amount of traffic, it may not be necessary to purchase CDN service. You might be able to get away with upping your current web host provider from a shared environment to a dedicated environment. If you are having so many problems with your video or software downloads, then look at the root cause and fix it! When you are delivering about 500 gb/month it starts to make sense to off load that heavy lifting to a CDN. By now, you are getting several thousand requests per month or even per second and your single web server in 1 data center would not be able to keep up with the traffic. Certainly when you are doing over 1tb/month of static content delivery, you should use a CDN. This will ensure your videos, podcasts, music, images, documents, and software downloads are getting to your customers quickly and efficiently.