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NASA Tests Deep-Space Network Modeled On the Internet

hcg50a writes "NASA has successfully tested the first deep space communications network modeled on the Internet. Working as part of a NASA-wide team, engineers from NASA's Jet Propulsion Laboratory in Pasadena, CA, used software called Disruption-Tolerant Networking, or DTN, to transmit dozens of space images to and from a NASA science spacecraft located about 20 million miles from Earth. The store-and-forward protocol was designed by NASA in consultation with Vint Cerf. Here's a discussion from last July before the test began."

32 of 109 comments (clear)

  1. Imagine... by pitchpipe · · Score: 3, Funny

    lolcats in space!

    --
    Look where all this talking got us, baby.
    1. Re:Imagine... by jd · · Score: 4, Funny

      Elebenty of tehm! Running Beowulfs!

      --
      It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
    2. Re:Imagine... by RockWolf · · Score: 2, Funny

      I wonder what images they actually sent...the press release doesn't mention anything about them.

      Porn, obviously.

      --
      February 9th, 2009 8:55pm: Slashdot becomes self-aware.
  2. their first message by Anonymous Coward · · Score: 2, Funny

    5th post

  3. DRM by frisket · · Score: 2, Funny

    Would sub-space internet radio broadcasts be subject to a DRM?

    1. Re:DRM by sexconker · · Score: 2, Funny

      I've just copyrighted the term subcasting.

    2. Re:DRM by Anonymous Coward · · Score: 2, Insightful

      A word is not copyrightable.

    3. Re:DRM by floop · · Score: 2, Informative

      It's called trademark, not copyright and someone already did it: http://tess2.uspto.gov/bin/showfield?f=doc&state=jemidk.2.1

    4. Re:DRM by Directrix1 · · Score: 3, Funny

      Yeah, but while you guys were talking about that, I trademarked Subcasting (TM).

      --
      Occam's razor is the blind faith in the natural selection of least resistance and in universal oversimplification. -- EF
  4. Store anf forward.. could it be... by strangeattraction · · Score: 2, Interesting

    email re-inventerd?

    1. Re:Store anf forward.. could it be... by Alwin+Henseler · · Score: 4, Informative

      With space you have no internet (i.e. road) and TTLs are too high to use the same technology we use here.

      You might think so, but it *has* been shown to work. I mean, don't tell me you never heard of the pigeon protocol?

    2. Re:Store anf forward.. could it be... by corsec67 · · Score: 3, Interesting

      Pigeons in space... I need to say no more.

      Well, if you throw them in the right direction with the right velocity...

      Assuming you don't have to enter or exit any atmospheres, it could work. The catching site would be messy, and would give Mike Rowe an excuse to go into space.

      It would just be a "dead pigeon" protocol.

      --
      If I have nothing to hide, don't search me
    3. Re:Store anf forward.. could it be... by Kz · · Score: 2, Informative

      why do you assume e-mail means TCP/IP?

      i guess you don't remember UUCP? yep, that was a store-and-forward protocol, which evolved into a 'network of networks' working to get e-mail and netnews before the Internet.

      --
      -Kz-
    4. Re:Store anf forward.. could it be... by markana · · Score: 2, Funny

      African, European, or Alien swallows?

      (assuming that the airspeed velocity is irrelevant here...)

  5. Designed to survive galactic warfare... by Anonymous Coward · · Score: 2, Funny

    ...and route around event horizons.

  6. very exciting by qw0ntum · · Score: 4, Insightful

    This is very exciting, not only because of its utility in space, but because of its utility on Earth as well. Particularly in areas with unreliable internet service, delay-tolerant protocols can be extremely helpful for allowing basic connectivity to the outside world. Consider the choice is having no internet communications at all versus waiting a day or two for your email to travel out of your village, onto the passing truck that is caching data, and into the city where it can proceed through a reliable internet connection. DTN is powerful stuff.

    It really kills me when people dismiss developments in space programs as being too far removed (no pun intended) from the rest of us to be relevant.

    --
    'Every story, if continued long enough, ends in death.' --Ernest Hemingway
    1. Re:very exciting by jd · · Score: 2, Interesting

      It would be nice if there were packet drivers for the protocol for Linux, NetBSD and NS-3 (the current network simulator). This would allow people to get a good feel for the behaviour of the new protocol, which may have uses beyond deep space. (It is possible to imagine real-world networks on Planet Earth where the characteristics of the network compare with inter-satellite communications.) Besides, would you rather Europe's answer to GPS use Windows?

      --
      It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
    2. Re:very exciting by Star+Particle · · Score: 3, Funny

      I agree, this is very exciting news in terms of internet devel- *error: connection dropped*

    3. Re:very exciting by amirulbahr · · Score: 3, Insightful

      Disruption Tolerant Network protocols certainly have a place in ad-hoc wireless networks where bit-error rates are high and link outages are common.

      One of the drawbacks of a DTN is the fact that intermediate nodes require greater complexity and memory for the store-and-forward.

    4. Re:very exciting by Tubal-Cain · · Score: 3, Funny

      Don't worry, everybody.
      The rest of the post will come within the hour. Or maybe next week.

  7. Yay! by owlnation · · Score: 2, Funny

    Space Porn!!!

  8. Remember FIDONet by Cyberax · · Score: 4, Informative

    We already have a working _global_ _worldwide_ _free_ network based on store-and-forward protocols.

    It's called FIDONet. It's almost dead now, but it was very alive during early 90-s before the advent of cheap Internet.

    Kids...

    1. Re:Remember FIDONet by Anonymous Coward · · Score: 5, Funny

      We already have a working _global_ _worldwide_ _free_ network based on store-and-forward protocols.

      It's called FIDONet. It's almost dead now, but it was very alive during early 90-s before the advent of cheap Internet.

      Kids...

      We shall, respectfully, remove ourselves from your lawn.

    2. Re:Remember FIDONet by Jimbookis · · Score: 2, Funny

      We already have a working _global_ _worldwide_ _free_ network based on store-and-forward protocols.

      It's called FIDONet. It's almost dead now, but it was very alive during early 90-s before the advent of cheap Internet.

      Kids...

      The best thing is if NASA used FIDONet think of the money they'd save by only sending messages to Deep Space at 3am when the tolls are cheapest!

    3. Re:Remember FIDONet by John+Hasler · · Score: 2, Informative

      UUCPNet, Pathalias, and the UUCP Mapping Project.

      Kids, indeed.
      --
      ihnp4!stolaff!bungia!foundln!john

      --
      Warning: this article may contain humor, sarcasm, parody, and perhaps even irony. Read at your own risk.
    4. Re:Remember FIDONet by Cyberax · · Score: 2, Funny

      Same problem :)

      I'm seriously thinking about FireFox extension which will stop opening new Wikipedia links after 20-30 minutes of reading Wikipedia pages.

    5. Re:Remember FIDONet by AmberBlackCat · · Score: 2, Funny

      If you ever get those kids off your lawn, I may be willing to pay big dollars for the right to put a giant baseball mitt there.

  9. bollocks by mofag · · Score: 4, Insightful

    Deep space my arse! Its just space. We've not even stepped out of our own little planet-moon system yet and we think we want to start using up space-faring superlatives. Morons! Soon the term deep-space will be about as meaningful as artificial intelligence (assuming deep-space was ever a meaningful term in the first place). If this system is for "deep-space" then what will we call a communication protocol that works well between stars?

    Anyone in marketing, kill yourself! - Bill Hicks

    1. Re:bollocks by Spikeles · · Score: 4, Funny

      then what will we call a communication protocol that works well between stars

      Interstellar?

      --
      I don't need to test my programs.. I have an error correcting modem.
    2. Re:bollocks by plover · · Score: 3, Funny

      I think Microsoft may have been considering the scope of this problem for a long time. They stopped the hubristic practice of naming "guaranteed unique" identifiers as UUIDs (Universally Unique IDentifiers) and started referring to them as GUIDs (Globally Unique IDentifiers.)

      Why would they change horses in the middle of the race, with all the expense of changing documentation, supporting two naming systems, and all of the resultant confusion, unless there was a reason to not refer to them as "Universal"?

      OK, maybe it's because they were trying to "embrace, extend, and extinguish" the RFC defining UUIDs. But I'd prefer to give them the benefit of the doubt, and say that they were "forward thinking", looking at the problems of networking in space.

      BWA HA HA HA! Sorry, I couldn't keep a straight face for that last bit.

      --
      John
  10. Searching Doom 3 servers... by Alwin+Henseler · · Score: 5, Funny

    CLANWARS_PUBLIC#1 LAVAPIT-BIG UDP 56
    LOL-GIBBERISHED OH!NOSHIT_ctf UDP 68
    PLAYTIME.DOT.UK DM_HOLYGROUNDS UDP 254
    FRAGFEST_REDPLANET DM_HELLHOLE UDP 2,139,442

    Ping of 2 MILLION? WTF ?!?

  11. Beat me to it. by Ungrounded+Lightning · · Score: 3, Interesting

    UUCPNet, Pathalias, and the UUCP Mapping Project.

    Kids, indeed.

    I still have several names registered with the UUCP Mapping Project as of their shutdown (freezing the namespace).

    Some of them still exchange mail via UUCP, too. Both with each other and the rest of the net. B-)

    (In fact one of those rest-of-the-net links was down for a while and came back up right after McColo was cut off. B-> )

    = = = =

    Running mailing lists with a periodic UUCP link in the path has an additional side-effect: It limits the traffic explosion from mail loops that are not detected to a manageable volume, giving the admin time to shut down the offending address.

    = = = =

    I understand that UUCP mailnet is ALREADY in use in Africa in a very interesting form:

      - Villages have a WiFi-enabled machine to exchange mails and files with the outside world.
      - The local mail carrier has a bicycle with a WiFi-enabled, battery-powered machine with a decently large disk.
      - As he cycles from village to village the bike-mounted machine associates with the local machine and UUCP does its usual magic, transferring mail, files, and download requests. (Don't know if they also run netnews groups on it...
      - One of the machines on his route has internet connectivity and transfers the mail, files, and download requests to the rest of the world.

    All with legacy protocols doing what they always did. And he doesn't even have to stop pedaling. B-)

    --
    Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way