Method and request router for dynamically pooling resources in a content delivery network (CDN), for efficient delivery of live and on-demand content

A method, executed in a request router (RR), for dynamically pooling resources in a Content Delivery Network (CDN), for efficient delivery of live and on-demand content, comprising the steps of:

• receiving a request for a content from a client;
• determining a content type associated with the request for the content, the content type being one of:
• live content and on-demand content;
• based on the determined content type, dynamically electing delivery nodes at edge, region or core for content delivery and grouping the dynamically elected nodes into a resource pool;
• selecting a delivery node within the resource pool for delivering the content;
• sending a response to the client including an address of the delivery node selected within the resource pool to be used to get the requested content;
• and
• if the content type is on-demand content, converting the resource pool into a one-layer logic view;
• wherein the step of selecting a delivery node comprises selecting the delivery node from the one-layer logical view of resource pool by applying Content based Request Routing (CBRR);
• and
• wherein if the content type is on-demand content, the one-layer logic view comprises all the delivery nodes of the CDN and the step of selecting the delivery node comprises selecting any node of the CDN that reduces content replication in the CDN and that reduces on-demand content at each delivery node.