Overview of iFogSim: A Tool for Simulating Fog Networks of the Future

The forthcoming Internet of Things is already at the doorstep, with over 50 billion devices connected locally. This requires expansion and growth in existing Cloud infrastructure. Among many solutions, Fog computing offers optimal one. It is due to its scalable architecture and reduced latency properties. Implementing Fog has its own challenges. One of the questions indicate acute shortage of training datasets in the real world. Hence many simulators provide the much-needed insight to system design. iFogSim is currently providing reliable simulation scenarios with easy to use interface. Its applications in different fields are growing exponentially. This paper comprises of Fog architecture and its associated iFogSim interface Additionally This paper covers most notable areas where iFogsim is providing reliable results.