Delay Tolerant Networking Working Group (SIS-DTN) falls under the Space Internetworking Services (SIS) Areas of the CCSDS.
The Delay Tolerant Networking Working Group is specifying the protocols needed to implement the Solar System Internetwork (SSI) concept. These protocols support the portion of the SIS communication domain where large delays, intermittent connectivity, and/or unidirectional communications links may be present.
The main internetworking protocol in the Solar System Internet is the Bundle Protocol (BP). BP is a message-oriented store-and-forward communication protocol with optional reliability that is suitable for use when contemporaneous end-to-end connectivity cannot be guaranteed. BP routers may store data (bundles) before forwarding them, possibly for long periods of time. This allows routers to forward data even if the outbound communication link is not available when the data arrives. The Bundle Protocol and all the supporting protocols in the SSI suite are designed for these conditions. This is in contrast to many of the protocols in the Internet Protocol (IP) suite that at least implicitly assume low delays and end-to-end connectivity. The working group is specifying a profile of the Bundle Protocol as specified in Internet RFC5050 for use by CCSDS.
BP has been demonstrated in a number of experiments both on the ground and with spacecraft, including the Deep-Space Networking Experiment (DINET), the Earth-Observing Mission-1 (EO-1) spacecraft, and various single- and multi-agency experiments on the International Space Station (ISS).
In addition to the Bundle Protocol, the working group is specifying a profile of the Licklider Transmission Protocol (LTP, RFC5326) for use in CCSDS missions, as well as network management and security protocols.
The group works with and leverages work done in the terrestrial DTN community, including the Internet Research Task Force’s DTN Research Group (http://www.dtnrg.org).
POINTS OF CONTACT
Chair: Robert Durst
MITRE Corporation
M/S H400
7515 Colshire Drive
McLean, VA 22102
USA
E-mail: durst@mitre.org
Deputy Chair: Felix Flentge
ESA/European Space Agency
ESOC Robert-Bosch-Str.5
D-64293 Darmstadt, Germany
Telephone: +33 1 53 69 76 54
E-mail: felix.flentge@esa.int
MAILING LIST
sis-dtn@mailman.ccsds.org
Click here to join mail list
Click here to view archives
Chair: Peter Shames
SANA Operator: Cofomo
General Secretary: Sami Asmar
Chair: Dr. Jon Hamkins
Deputy Chair: Dr. Clemens Heese
Chair: Bruno Saba
Deputy Chair: Howard Weiss
Chair: Englin (Mark) Wong
Deputy Chair: Lucana Santos
Chair: Andrea Modenini
Deputy Chair: Kenneth Andrews
Chair: David Berry
Chair: Peter van der Plas
Chair: Holger Dreihahn
Deputy Chair: Erik Barkley
Deputy Chair: Marcin Gnat
Chair: Alexander Kalkhof
Chair: Peter Shames
Deputy Chair: Dai Stanton
Chair: Osvaldo Peinado
Deputy Chair: Beth St. Peter
Chair: Glenn Rakow
Chair: Kevin Gifford
Deputy Chair: Yuriy Sheynin
Deputy Chair: Richard Melvin
Chair: David Giaretta
Chair: John Garrett
Chair: Olivier Churlaud
Deputy Chair: Costin Radulescu
Area Director: Tomaso de Cola
Deputy Area Director: ‘Vinny’ Ivica Ristovski
Deputy Area Director: Jean-Luc Issler
Deputy Area Director: Xiongwen He
Area Director: Mehran Sarkarati
Chair: Sinda Mejri
Chair: Javier de Vicente
Deputy Chair: Christopher Volk 
Deputy Chair: Marcus Wallum
Chair: Shelbun Cheng
Deputy Chair: Paul Thompson
Area Director: Jim Lux
CESG Chair: Daniel Fischer
CESG Deputy Chair: Tim Pham