The Internet was originally aimed at sending and receiving data between host computers.However, developments in recent years have led to it being used as a distribution system for information such as video and music data.There is thus a growing interest in information-centric networking (ICN), a new networking architecture that better supports information-centric Internet usage.The basic idea is that the network architecture does not depend on locations (servers) but on named data, making them directly accessible to users.Notable characteristics include more efficient data access through in-network caching, simplified content request messages for mobility support, and content-specific security functions.Many universities and corporations are utilizing this architecture and reporting advances in protocol specifications, open software, prototype systems, and so on.Although ICN is still in the research phase, there should be great promise for the future.This paper outlines the basic paradigm of ICN and describes the characteristics of the two types of ICN architecture.It also describes the current trends in the research and initiatives taken by various organizations, including the research being conducted by Fujitsu Laboratories of America.
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