Extension of Information-Centric Networking for Push-Based Contents Deliver

Information-Centric Networking (ICN) is attracting attention as a content distribution method against increasing network traffic. ICN router has the cache function. However, when a large amount of the interest packets for the same content that is not present in the cache occurs during a short time, there is a problem of redundant interest packet, and data packet flows to the upstream link. Such contents expect to happen in case of social affairs, like featured sports. To solve this problem, we propose a method that the server pushes the predicted content to the neighboring nodes before a large amount of interest to the content will occur. As the simulation results, it is confirmed that the possibility of reduction for the number of packets flowing in the upstream link and the number of routing table states required for push distribution.