Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
×
Technology

New Internet2 Land Speed Record 338

SquadBoy writes "An international team set a new record for Internet performance by transferring the equivalent of an entire compact disc's contents across more than 7608 miles (12,272 km) of network in 13 seconds. The rate of 401 megabits per second achieved in transferring 625 megabytes of data from Fairbanks, Alaska to Amsterdam in the Netherlands is over 8000 times greater than the fastest dial-up modem."
This discussion has been archived. No new comments can be posted.

New Internet2 Land Speed Record

Comments Filter:
  • Land speed record (Score:2, Informative)

    by Sycophant ( 4279 ) on Wednesday May 22, 2002 @07:34PM (#3569144) Homepage
    If I am not mistaken (and I could be, I suck at maths).

    It traveled at about 3,345,350 KM/H, or about 5,352,560 MPH...
  • by perky ( 106880 ) on Wednesday May 22, 2002 @07:53PM (#3569260)
    Does Internet2 use standard IPv6?
    http://www.internet2.edu


    Why is a seperated network?

    You think they are going to spend all that money on a serious research network only to let Joe Public use al, the bandwidth on pr0n?

  • by anzha ( 138288 ) on Wednesday May 22, 2002 @07:55PM (#3569270) Homepage Journal
    Every year there is a competition at the high performance conference (Supercomputing 2001 was this last one). It is entitled the 'Bandwidth Challenge'. This last year, NERSC [nersc.gov] took first place with a 3.3 gigabit/second sustained graphically represented simulation using seaborg [nersc.gov].

    Now, admittedly, it wasn't intercontinental, only from Oakland, Ca to Denver, Co....:D
  • by Moosifer ( 168884 ) on Wednesday May 22, 2002 @08:08PM (#3569334)
    Internet2 page has some events and workshops [internet2.edu] that look like they might be really good deals. I registered for the IPV6 3 day workshop at the University of Utah for only $100.00 - as long as it doesn't suck, that should be money well spent.
  • Some Calculations (Score:3, Informative)

    by Traa ( 158207 ) on Wednesday May 22, 2002 @08:19PM (#3569371) Homepage Journal
    The transfer rate of the new records calculates as follows: 625MB over 12,272km in 13 seconds = 590000 MB*Km/s = 0.590 TB*Km/s

    When I drive home from work in a few minutes: 125TB (10^15 Synapses, Von Neumann et al.) at 85 Mph during rush hour (yeah, that manic...it's me) = 4.7 Tb*Km/s

    The Boing full of DVD's calculates as follows: 4.7GB * 170.5 Cubic meters cargo space / 175 Cubic cm jewel case * 912 Km/h = 662,515Gb * 0.25Km/s = 1160 TB*Km/s
  • by kalgen ( 224492 ) on Wednesday May 22, 2002 @08:30PM (#3569411) Homepage
    The University of Washington has transmitted 1.5Gbps of HDTV across the country. I guess the new thing here is the intercontinental aspect. Here [washington.edu] for the UW press release.
  • by AaronStJ ( 182845 ) <(moc.liamg) (ta) (JtSnoraA)> on Wednesday May 22, 2002 @08:36PM (#3569434) Homepage
    Andrew Tannenbaum put it best with, "Never underestimate the bandwidth of a station wagon full of tapes hurtling down the highway."
    This math is not done by me, but by Bonboard on Everything2 (search "Never underestimate the bandwidth of a station wagon full of quarter-inch tapes"):
    13 Petabytes per second.

    For comparison purposes, this is equivalent to about 650 strands of perfectly saturated, single-mode fiber optic cable.

    This figure will, of course, vary depending on a number of factors. In order to compensate for your own rate of travel and storage media, simply fill in the blanks below to get your tally! It's fun for kids of all ages!
    BW = (( WV / (TW * TL * TH ) ) * TC * WS / WL) , where

    BW = bandwidth in bytes / second
    WV = the volume of your station wagon, in cubic meters
    TW = the width of each individual quarter-inch tape, in meters
    TL = the length of each individual quarter-inch tape, in meters
    TH = the height of each individual quarter-inch tape, in meters
    TC = the capacity of each individual quarter-inch tape, in bytes
    WS = the speed of your station wagon, in meters/sec
    WL = the length of your station wagon, in meters

    This figure assumes average instantaneous bandwidth down the length of the wagon; in reality, I would assume that the bulk of the data transfer would occur in the region nearest the trunk.
    To get my figure, simply plug in: WV = 2.72, TW = 0.054, TL = 0.073, TH = 0.0105, TC = 35.0 * 10 ^ 9, WS = 26.8, WL = 4.75. These numbers are meant to describe a stuffed 2001 Subaru Outback doing 60MPH using 35GiB tapes of this form factor.
  • Re:that's fast (Score:4, Informative)

    by Alan Partridge ( 516639 ) on Wednesday May 22, 2002 @08:38PM (#3569446) Journal
    err... no it isn't. My little G4's internal SCSI array reads at sustd/peak 78/286 writes at 76/92. That's MB/sec so we're talking IRO R >600/>2200 W >600/>700. And this little array's nothing special, just a pair of Fujitsu MAJ's at 10K rpm with 4MB cache each on an ATTO UL3D twin channel host controller. Cost around a grand to install is all - there are WAY faster drives than those available now - awesome 15k rpm beasts than can top 60MB/sec sustained...

Anyone can make an omelet with eggs. The trick is to make one with none.

Working...