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Delay Tolerant Networking Research Group. 60 th IETF. Kevin Fall, chair Intel Research, Berkeley. http://www.dtnrg.org. Aug 6, 2004. Goals of this Meeting. Introduce new people DTNRG problem overview State of the RG Share research efforts/experience Update/evaluate our status

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delay tolerant networking research group

Delay Tolerant Networking Research Group

60th IETF

Kevin Fall, chair

Intel Research, Berkeley

http://www.dtnrg.org

Aug 6, 2004

goals of this meeting
Goals of this Meeting
  • Introduce new people
    • DTNRG problem overview
    • State of the RG
  • Share research efforts/experience
  • Update/evaluate our status
    • IETF Documents
    • Future directions?
dtnrg is looking at
DTNRG is looking at…
  • Radical heterogeneity
    • Layer-agnostic interconnection of networks (IP and non-IP)
  • Tolerance to disruption/disconnection
    • No contemporaneous e2e path assumed
  • “Advanced” (multi-path) routing
    • Similar to multi-commodity flow or trans-shipment problem in operations research
dtn architecture highlights
DTN Architecture Highlights
  • Asynchronous messages (bundles)
  • Two-part naming with late binding
  • Enhanced reliability via custody transfer
  • Routing with fragmentation
    • Predicted and opportunistic connectivity
  • (Security for infrastructure protection)
  • (Flow and congestion control)
very brief history
Very Brief History
  • DTNRG Chartered as IRTF research group (end of 2002)
  • Architecture evolved from deep-space-focused Interplanetary Internet project
    • Funded by DARPA 1999-2002
    • IRTF Group IPNRG retired when DTNRG formed
  • Currents:
    • IDs on arch, proto, IPN mapping
    • Implementation, DARPA program, papers, etc
output
Output
  • Papers:
    • SIGCOMM 2003 – Architecture
    • SIGCOMM 2004 – DTN Routing
    • IEEE Communications – DTN for IPN
    • SpaceOps – DTN for Mars Exploration
  • Software:
    • Code released Mar. last year
    • Public CVS available + new implementation
  • Real-world use:
    • Not much yet: ICT4B Project, others?
  • Other:
    • basis for DARPA DTN Program
agenda 1
Agenda [1]
  • Early afternoon talks:
    • Intro (me)
    • Mindstream (Keshav, U Waterloo)
    • Firefighting in San Diego (hwb, SDSC/NLANR)
    • SNC Project (A. Doria, Lulea/KAIST)
    • (break)
agenda 2
Agenda [2]
  • Late afternoon talks:
    • Routing in a DTN (S. Jain, UW)
    • DTN Reference Implementation (M. Demmer, UCB)
    • UCLA DTN-Sensor Projects (A. Parker, UCLA)
    • LTP and SenDT (S. Burleigh, JPL and S. Farrell, Trinity)
    • Drive-Thru Internet (Joerg Ott, Uni-Bremen)
    • Wrap-up (all)
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