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Transcript of Interplanetary Internet
for space explorations AIM: OBJECTIVE: Create a network architecture that deals with long delay and disruption between communicating spacecrafts. Delay and Disruption
Tolerant Network (DTN)
Architecture 24Kbps 128Kbps Celestial Motion
Long Distances Several Factors
we have to consider Examples of DTNs Design Principles
Bundle Layer < = > Internet Layer
1. It forms an overlay that employs persistent storage to combat network interruption.
2. It employs hop by hop transfer of reliable delivery responsibility and optional end to end acknowledgment.
3. Includes a number of diagnostic and management features.
4. Basic security model.
Bundles < = > Packets
Bundle[ Source, Destination, Data ] Long messages
Persistent storage within the network
Security Mechanism Network Design Principles Minimize the number of roundtrip exchanges
Should cope with failure after restart
Should inform the network of the importance of the data Application Design Principles Example: Routing Routing: Broadcast, Multicast, Anycast
Take note that the network has
Long distances (Delay)
Celestial motion (Disruption)
Dedicated channels Future Work IPN Pioneers
Vinton Cerf, Interplanetary Internet (IPN)
Kevin Fall, A Delay Tolerant Network Architecture for Challenged Networks, (2003)
Vint Cerf, Tedtalk presentation
NASA Jet Propulsion Lab
IPN bringing networking into space, Lloyd Wood References Store and Forward zmescience.com wikimedia Ion Stoica, Spring 2001 wikimedia LLoyd Woods' IPN presentation JPL