Survey of named data networks: future of internet

Abstract

With the advent of Internet and exponential growth in its users, that day is not far when the IP addresses used by Internet would exhaust and it would come to a standstill. Not only this to retrieve a data, dependency of server and network overhead can’t be overruled but NDN overcomes both these issues of IP addresses and server dependency/network overhead by introducing content centering approach and retrieval from intermediate routers.IPv4 is the protocol, which is most common for Internet connections. It uses a 32-bit addressing scheme resulting in total of 232 addresses. As Internet is growing with fast pace it is expected that soon the unused addresses would be exhausted. A new addressing system IPv6 is used to have more addresses, which allows 2128 addresses. But we can’t keep on going on increasing the addresses a newer approach is definitely required which gave birth to NDN in 2009. Keeping this in mind U.S. National Science Foundation’s Future Internet Architectures started a project Named Data Networks (NDN). NDN retains the current IP based internet architecture but changes the functionality where signed named content are retrieved by the intended consumers instead of IP packets delivered to the destination.Initial investigation and feasibility studies show that NDN with its principles can remove the gap between internet usage applications and data transport. Furthermore it also aims to simplify the application development process and cater to few of the everlasting issues of today’s internet architecture terms of security, scalability, and sustainability. With this aim put forward, the development, implementation and realization of the NDN architecture also faces a number of new challenges like naming and signing of all data chunks and changes in the routing and forwarding strategies. NDN project is still in offspring and there are various research issues which need to be addressed. This paper covers a brief survey of this future internet paradigm and bring out its major outcomes and areas to work in future.