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Paper in nature on "Internet Tomography" 19

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.
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Paper in nature on "Internet Tomography"

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  • What about the MIDS Internet Weather Report? This sort of thing has been running for ages.
  • 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...
  • 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.
  • ...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"?

  • What is "rtt"?! (on the right side)
  • Cheops does something like this, although I found the display quickly became overwhelming.
  • Alone the same lines.. for usenet... based on usenet Path: headers
  • here [] is another cool picture of the internet
  • Back when I was a boy, we called them globes.
  • 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....

  • you could get neotrace from .asp

  • 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.
  • by nb ( 15329 )
    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),


Beware of Programmers who carry screwdrivers. -- Leonard Brandwein