Towards a CDN over ICN

The development of Information-Centric Networking (ICN) concepts is one of the significant results of different international Future Internet research activities. In the approaches, the networking paradigm shifts from the host-to-host communication to the information-based communication. The ICN concept is receiving huge attention because of the increasing demand for highly scalable and efficient distribution of information. Meanwhile, the Content Delivery Network (CDN) has been an important patch to the existing IP network that enables the fast delivery of content. Though the CDN architecture relies on the traditional host-to-host communication model, it has been widely deployed to solve the content availability and ontime delivery issues. In this paper, we cover issues and requirements to implement CDN over ICN technologies, and suggest an architecture called IICN which enables an easy transition from IP-based CDN to ICN-based CDN. In IICN, it is possible to incrementally replace IP nodes with ICN-capable nodes. We believe that IICN suggests an important ICN application that leads to an Information-Centric Internet.