Architectural Overview of Delay Tolerant Network

This paper discuss about the current design of the Delay/Disruption Tolerant Networking (DTN) Architecture and also deals with some open issues regarding the architecture. At present we had achieved some stability within the design, but somehow additional experience is required to understand the concept of long ongoing transmissions at long running operational environments as well as to know the architectural complexity.The parameters including congestion, routing scenarios, security, and transmission path were still considered as active research area to develop a DTN protocols in efficient manner.