DTN or Delay/Disruption Tolerant Networking is now being tested at the International Space Station.
This system has been designed by a team of NASA scientists led by Google VP Dr. Vinton G. Cerf, one of the “fathers of the internet”, to make communications system more reliable for its future missions.
This solar system internet service is designed to work in the outer space to improve the data availability for different experiments being carried out at space station. DTN service will also be helpful for enhancing applications for mission support that includes transfers of operational files.
According to NASA, “DTN works by offering an automatic and reliable store and forward data network that stores partial bundles of data in nodes along a communication path until the components can be forwarded or retransmitted, then re-bundled at the final destination, either to ground stations on Earth, robotic spacecrafts in deep space, or, one day, humans living on other planets”.
NASA worked closely with Dr. Vinton G. Cerf, Google’s Vice President and Chief Internet Evangelist to develop the service DTN. NASA has taken more than a decade in generating the networking service and it made sure that the technology will be standardized all over the world, by working with Internet Engineering Task Force (IETF), Consultative Committee for Space Data Systems (CCSDS) and the Internet Research Task Force (IRTF).
To sum it up, numerous DTN implementations are available publicly as open source code, that ISS payload developers, commercial networking developers, and university researchers have access to it.