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ICANN meeting, Los Angeles, USA, 2007.

InterPlaNet (IPN), not to be confused with InterPlanetary Network, is a computer networking protocol designed to operate at interplanetary distances, where traditional protocols such as the Internet Protocol break down. It is the base for Interplanetary Internet. It has been under development by Vint Cerf and NASA since 1998 and a permanent network link to Mars was planned by 2008[1] until the Mars Telecommunications Orbiter was canceled in 2005. The protocol was expected to be space-qualified and ready for use by around 2010[2].

IPN Protocol Stack

The distance between the planets and their constant motion, impose long and variable delay on the communications. Thus, the traditional protocol stack don't function properly. Delay/Disruption Tolerant Network (DTN) comes into play to address these constraints. DTN insert a new set of protocols to the traditional protocol stack, that are called Bundling Protocols (BPs)[3]. BP is a standard method for performing store-and-forward data transmission where data are stored for a period of time at

Overview of Bundling Protocol function. An intermediate node's BP turns the bundles from LTP packets into TCP packets.  

intermediate nodes along a network path, and forwarded to the next station when link is available. Licklider Transmission Protocol (LTP) is an BP and a transport protocol that function in deep space. For example of a dataflow, let a intermediate space satellite between the deep space and the earth, see the figure. The intermediate node has two transport protocols, LTP and TCP. LTP for data transmission over deep space communication links, and TCP for transmission over earth communication links. The intermediate node turns the received data from LTP packets into TCP packets using their underlying convergence layer protocols[4] [5]. The protocols in the lower layers might change to support the corresponding communication and network.

See also

References

  1. ^ Turner, Adam (21 February 2007). "Inter-planetary Internet expands to Mars and beyond". itwire.com. Archived from the original on 28 March 2008. Retrieved 2007-02-22.
  2. ^ "Internet preparing to go into outer space". AFP. October 17, 2007. Archived from the original on October 20, 2007. Retrieved 2007-10-27.
  3. ^ Scott K, Burleigh S. "Bundle Protocol Specification". tools.ietf.org. Retrieved 2020-10-24. {{cite web}}: |archive-date= requires |archive-url= (help)CS1 maint: url-status (link)
  4. ^ Alhilal, A.; Braud, T.; Hui, P. (2019-08-14). "The Sky is NOT the Limit Anymore: Future Architecture of the Interplanetary Internet". IEEE Aerospace and Electronic Systems Magazine. 34 (8): 22–32. doi:10.1109/MAES.2019.2927897. ISSN 1557-959X.
  5. ^ Report Concerning Space Data System Standards. "RATIONALE, SCENARIOS, AND REQUIREMENTS FOR DTN IN SPACE" (PDF).{{cite web}}: CS1 maint: url-status (link)


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