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Paper in nature on "Internet Tomography"
The Internet Posted by CmdrTaco on Friday January 22, @02:17PM
from the stuff-to-read dept.
rafial writes "A group called CADIA has just published a paper in Nature that describes there work on " Internet Tomography." Essentially they are firing large numbers of pings trough the Internet and analysing the results to analyze topology and performance. Lots of neat pictures, and they are using FreeBSD to conduct their research! " Sweet looking stuff. Check it out.

More Info on Pentium III, /dev/random, etc. | BellAtlantic ADSL absurdity  >

 

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  • rafial
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  • Also by CmdrTaco
  • The Fine Print: The following comments are owned by whoever posted them. Slashdot is not responsible for what they say.

    okay this is lame but...
    by Anonymous Coward on Friday January 22, @02:23PM
    Woohoo I'm first ( i think )
    *Green Wit Envy*
    by Anonymous Coward on Friday January 22, @02:30PM
    Great, I do a similar thing all the time to figure out why my Quakeworld game is running like crap, and these guys get published (or at least Web Published) in Nature..
    KC can do some amazing things with numbers (Score:1)
    by MikeM (michaelm@netsol.com) on Friday January 22, @02:40PM
    (User Info) http://www.rwhois.net/michael
    KC (K. Claffy) was showing some of these pictures at an IETF last year and they were amazing then. One of the more interesting things was how pervasive (invasive?) Verio's networks were becoming.

    She has also been giving reports at the IETF for several years on web cache performance at the IETF meetings. Finally someone is actually looking at real performance numbers on these networks....


    (Yes I work for NSI. No I don't pretend to speak for them since they don't pretend to speak for me.)
    Verio sucks (Score:1)
    by mattc (mattc-at-pobox-dot-com) on Friday January 22, @04:44PM
    (User Info) http://pobox.com/~mattc
    Every ISP that gets assimilated by Verio gets at least 5 additional hops added to their traceroute.. Verio is killing internet speed!!
    Finally!
    by Anonymous Coward on Friday January 22, @02:41PM
    A technical story on Slashdot.

    CmdrTaco, this is the kind of thing we thrive on. Forget the Katz "I dropped my PC on my foot--do I see a doctor or a technician" and "MS Sucks!" articles.
    Geography
    by Anonymous Coward on Friday January 22, @09:44PM
    Has anyone corallated this information with physical geography?
    Geography (Score:1)
    by nb on Friday January 22, @09:55PM
    (User Info)
    there is not much info available out there
    to convert IP numbers to geographical locations...

    unless everybody out there actually put
    location information in their DNS records
    (just the city the machine is located in
    would be *loads* more useful than no info
    at all).

    more info from CAIDA about this (RFC 1876),
    at http://www.caida.org/Tools/iptll.html

    -nb
    Quick Question (Score:1)
    by GreenPickles on Friday January 22, @02:50PM
    (User Info) http://
    What is "rtt"?! (on the right side)
    Round Trip Ticket (Score:1)
    by A nonymous Coward on Friday January 22, @02:53PM
    (User Info) http://
    for airlines, buses, trains.

    Round Trip Time for the Internet.

    :-)

    --

    Don't give your right name, no no no --- Fats Waller
    What about MIDS (Score:1)
    by phil reed on Friday January 22, @03:14PM
    (User Info)
    What about the MIDS Internet Weather Report? This sort of thing has been running for ages. http://www3.mids.org/weather/
    ...phil
    Well I'll be dipped in... (Score:1)
    by marcus on Friday January 22, @04:06PM
    (User Info)
    ...pretty pictures, but the internet really does look like a cloud! or a clump of moss or some fractal generated by my screen saver.

    I wonder if the software is available?
    Are they accepting volunteers for additional "survey stations"?


    #include "really_appreciate_your_work_Rob.h"
    Neat stuff (Score:1)
    by mackga (bmccarthy@nospam.ix.netcom.com) on Friday January 22, @04:09PM
    (User Info) http://pw1.netcom.com/~bmcarth
    I was looking around at the stuff CAIDA has on their web site. Very cool. The java app that shows the network pipes is, for me, awesome. I was thinking that a really killer application would be a traceroute that would interact real-time with a graphical geographical representation of the pipes it goes through. Maybe with a text window below the graphic w/ the traceroute output. Too bad I can't code to save my life.
    you mean like xtraceroute? (Score:1)
    by rillian on Friday January 22, @04:22PM
    (User Info)

    It uses the location fields in dns records (and elsewhere) to paste there route onto an xearth. Haven't tried it myself, but the screenshots look nice. =)

    http://www.dtek.chalmers.se/~d3august/xt/

    an xearth? (Score:1)
    by eGabriel (egabriel(*at*)io.com) on Friday January 22, @05:51PM
    (User Info)
    Back when I was a boy, we called them globes.
    -Gabriel
    Neat stuff (Score:1)
    by HeghmoH on Friday January 22, @04:25PM
    (User Info)
    Actually, the Macintosh program WhatRoute has this function. Unfortunately, it doesn't seem to work very well, as the sever it gets the location data from is either slow or doesn't have info on many nodes, but when it *does* work, it's very cool.
    Neat stuff (Score:1)
    by trabic on Sunday January 24, @12:09PM
    (User Info) http://
    you could get neotrace from

    http://www.neoworx.com/goonline/neotrace11_share.asp

    trabic
    Cheops (Score:1)
    by Paul Carver on Friday January 22, @04:33PM
    (User Info)
    Cheops does something like this, although I found the display quickly became overwhelming.
    Heh. Check out RFC1876
    by Anonymous Coward on Friday January 22, @04:41PM
    RFC1876 relates to the use of MX records to show where a certain IP address is physically located. Now I spotted this paragraph in section 7 of the RFC, itself. "High-precision LOC RR information could be used to plan a penetration of physical security, leading to potential denial-of-machine attacks. To avoid any appearance of suggesting this method to potential attackers, we declined the opportunity to name this RR 'ICBM'." HEHE!!
    I gather the Intelligence Agencies would like this implemented to make it easier to track down hackers on the net through this. Oppose it if you want your freedom to speak the truth.



    Heh. Check out RFC1876 (Score:1)
    by bmwt on Friday January 22, @04:57PM
    (User Info)
    You can be as vague as you need to be in specifying your LOC- it could be a room, a building, or even the general city you're in if you're worried about being bombed/invasion of privacy
    Only be as precise as you want... (Score:1)
    by adamsc (adamsc+++ATH0@nospam.gigante.ml.org) on Friday January 22, @05:11PM
    (User Info) http://www.gigante.ml.org/
    You don't have to give a hyper-accurate location. Just report the city. If you're still worried at that point, the black helicopters will chase you down before you can run far anyway...

    # Visit Gigante.

    Usenet Topology (Score:1)
    by fiiker (fiiker@yahoo.com) on Friday January 22, @04:41PM
    (User Info)
    Alone the same lines.. for usenet... based on usenet Path: headers
    http://www.reference.com/usetop

    Very cool and geeky science
    by Anonymous Coward on Friday January 22, @04:49PM
    Looking at the 2D representation of connections was very interesting. The structure and branched or tree like structure does look very much like natural phenomenon and I bet is quite comparable with some natural phenomenon ( maybe coral growth, modified snowflake growth or similar ).

    Looks very much like a form of Eden growth which I studied in my applied math modelling and simulation courses or perhaps a cellular automata.
    Man I wish I had linux back then!

    Nice story Taco..keep em coming

    another cool pciture (Score:1)
    by dumptruck (djd-nospam@openix.com) on Friday January 22, @04:51PM
    (User Info) http://www.openix.com/~mjd/david/
    here is another cool picture of the internet
    another cool pciture (Score:1)
    by nb on Friday January 22, @05:24PM
    (User Info)
    the layout algorithm for that image is the
    same one used in the CAIDA article (and on
    www.caida.org/Tools/Skitter), designed by
    hal burch of cmu. pretty neato, but a
    real cycle hog to render. -nb
    Looks like a evil mutant fungus...
    by Anonymous Coward on Friday January 22, @05:37PM
    Hey! Wait a minute... Reminds me of the novel Computer One by Warwick Collins. Good read. HAL is a cry-baby compared to that... :) -jon
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