Cdn or content delivery network in full is a system in which many computers are arranged to for a large network. The computers are usually located in different data centres. The advantage of such an arrangement is that it allows internet users to easily access information easily. The cdn service is used to transfer content such as URLs, scripts, web applications, social networks, graphics and so on.
The company that has specialised in providing this service is usually contracted by another company that seeks to sell content to internet users. The users will pay this vendor for the content and the vendor will in turn pay the service provider for being hosted. There are a number of things required for this system to be rolled out successfully; ISPs, carriers and network operators.
Frequently, companies that provide the service do so using their own servers. They may, alternatively, use servers belonging to their peers using what is referred to as P2P technology. Under this arrangement, the provider is in a position to host a larger pool of clients since they are using both their servers and those of their peers. Additionally, they can easily offload traffic received from the provider which serves to save on operation costs.
Transmission of content is carried out through points known as nodes. These are usually located in multiple places and on different backbones. A point of presence, PoP, is the exact location of the node. Adopting such an arrangement helps in saving bandwidth costs. The same contributes to faster page load times and improved content availability.
A request received on the server from a client is directed algorithmically to the optimally functioning node. The node is chosen by quantifying the number of network seconds between the client computer and the server. The fewer the seconds the more likely it is for the node to be optimal. Choosing an optimal node ensures that access of content is faster for the internet user.
Occasionally, the traffic on the servers is very huge as to overwhelm them. There are two solutions to this problem; the hardware based approach and the software based approach. The two help to redirect traffic such that it is shared among various web caches and servers. For this to be achieved, the traffic is fed to a unique IP address.
A popular use of the internet currently is to stream live video. The unfortunate thing is that this activity often results in the slowing of connectivity. Many broadband providers have now invested in efficient cdn servers so as to improve service provision and subsequently to provide good internet connectivity. This is a huge undertaking but with good rewards as well.
The CDN service is continues to be of great benefit in many areas as far as the use of technology is concerned. Its main advantage is that it brings the content vendor and the user to a common platform which makes communication between the easy. The deep catchment that exists within the network has been central to this.
The company that has specialised in providing this service is usually contracted by another company that seeks to sell content to internet users. The users will pay this vendor for the content and the vendor will in turn pay the service provider for being hosted. There are a number of things required for this system to be rolled out successfully; ISPs, carriers and network operators.
Frequently, companies that provide the service do so using their own servers. They may, alternatively, use servers belonging to their peers using what is referred to as P2P technology. Under this arrangement, the provider is in a position to host a larger pool of clients since they are using both their servers and those of their peers. Additionally, they can easily offload traffic received from the provider which serves to save on operation costs.
Transmission of content is carried out through points known as nodes. These are usually located in multiple places and on different backbones. A point of presence, PoP, is the exact location of the node. Adopting such an arrangement helps in saving bandwidth costs. The same contributes to faster page load times and improved content availability.
A request received on the server from a client is directed algorithmically to the optimally functioning node. The node is chosen by quantifying the number of network seconds between the client computer and the server. The fewer the seconds the more likely it is for the node to be optimal. Choosing an optimal node ensures that access of content is faster for the internet user.
Occasionally, the traffic on the servers is very huge as to overwhelm them. There are two solutions to this problem; the hardware based approach and the software based approach. The two help to redirect traffic such that it is shared among various web caches and servers. For this to be achieved, the traffic is fed to a unique IP address.
A popular use of the internet currently is to stream live video. The unfortunate thing is that this activity often results in the slowing of connectivity. Many broadband providers have now invested in efficient cdn servers so as to improve service provision and subsequently to provide good internet connectivity. This is a huge undertaking but with good rewards as well.
The CDN service is continues to be of great benefit in many areas as far as the use of technology is concerned. Its main advantage is that it brings the content vendor and the user to a common platform which makes communication between the easy. The deep catchment that exists within the network has been central to this.
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