Old lady surfs teh interwebs at 40 gigabits per second

Desolus · Post by **Desolus** » Sat Jul 21, 2007 2:17 pm

http://www.cnn.com/2007/TECH/07/20/supe ... index.html
excerpt:

"STOCKHOLM, Sweden (AP) -- She is a latecomer to the information superhighway, but 75-year-old Sigbritt Lothberg is now cruising the Internet with a dizzying speed.

Lothberg's 40 gigabits-per-second fiber-optic connection in Karlstad is believed to be the fastest residential uplink in the world, Karlstad city officials said.

In less than 2 seconds, Lothberg can download a full-length movie on her home computer -- many thousand times faster than most residential connections, said Hafsteinn Jonsson, head of the Karlstad city network unit."

Turaylon Soulshadow · Post by **Turaylon Soulshadow** » Sat Jul 21, 2007 2:21 pm

And we can all get one of those how?

Bahd Zoolander · Post by **Bahd Zoolander** » Sat Jul 21, 2007 2:35 pm

Turaylon Soulshadow wrote:And we can all get one of those how?

Kill her and move into her house.

Kulaf · Post by **Kulaf** » Sat Jul 21, 2007 3:14 pm

"We wanted to show that that there are no limitations to Internet speed," he said.

Yeah there is.....it's called the backplane of the router.

Post by **Ddrak** » Sat Jul 21, 2007 3:38 pm

The limitation there is the same limitation we all see on 5-10Mb cable - the speed the ISP can actually get the data from the web itself, not the end-user's connection.

Good deal - 40Gb connection that *still* only lets you download at 200-500k/s.

Dd

Riggen · Post by **Riggen** » Sat Jul 21, 2007 8:48 pm

See, I remember all too well the days of downloading at mere hundreds of bytes per second from local BBSes. So I'm very satisfied with 500K/s.

Post by **Ddrak** » Sat Jul 21, 2007 9:10 pm

I remember my good old 300 baud modem. Fun stuff. 30 bytes/sec zmodem!

I'm just pointing out that increasing the bandwidth between the ISP and end user is a little premature at the moment.

Dd

Bahd Zoolander · Post by **Bahd Zoolander** » Sat Jul 21, 2007 11:54 pm

With 15mbit cable I can get ~2200KB/sec downloading from a fast site like Easynews.

I wonder what sort of NIC she's actually using to make the connection. Not too many 40gb network cards out there.

Kulaf · Post by **Kulaf** » Sun Jul 22, 2007 12:11 am

Bahd Zoolander wrote:With 15mbit cable I can get ~2200KB/sec downloading from a fast site like Easynews.

I wonder what sort of NIC she's actually using to make the connection. Not too many 40gb network cards out there.

You'd have to use something like Etherchannel.

Minute · Post by **Minute** » Sun Jul 22, 2007 1:05 pm

You have a 15mbps connection Bahd? That's pretty damned cool. I thought I was king shit with my 8. Is that through a cable service or something else?

Kulaf · Post by **Kulaf** » Sun Jul 22, 2007 3:12 pm

FIOS probably.

Tallas · Post by **Tallas** » Sun Jul 22, 2007 6:18 pm

I've got 12Mbps cable which seems to be plenty fast for me. Its not often I can reach max throughput.

Post by **Ddrak** » Sun Jul 22, 2007 8:40 pm

Standard cable is technically capable of 33Mbit. Beyond that you have to aggregate multiple cable channels together.

As for 40Gbit, you do realize that's the bandwidth of DDR500 memory? In short, she is running at a faster rate than most CPUs can write to main memory let alone even attempt to talk to a peripheral. She's not running that bandwidth on a standard PC, at least not in any meaningful way.

Dd

Taxious · Post by **Taxious** » Mon Jul 23, 2007 9:40 am

Kulaf wrote:FIOS probably.

Fucking Verizon, string that shit up in Denver already plzkthx!

Bahd Zoolander · Post by **Bahd Zoolander** » Mon Jul 23, 2007 6:12 pm

Minute wrote:You have a 15mbps connection Bahd? That's pretty damned cool. I thought I was king shit with my 8. Is that through a cable service or something else?

Cox Cable.

Stormaye · Post by **Stormaye** » Fri Aug 10, 2007 11:40 pm

The article is a pretty vague.

10Gbps (as a base rate) is pretty standard now for a variety of high end applications. What the article is most likely talking about is parallelizing across multiple frequencies (modes) within the same fiber, adding up the rates on different modes and ending up with 40Gbps. http://en.wikipedia.org/wiki/DWDM Also, most electronics involved in decoding signals don't really work well at a base rate of 40Gbps, though that boundary is giving way as time goes on.

The only problem I have with it is the mention of a 1240 mile long connection. Multi-mode transmissions tend to be more lossy over distance, and, as far as I know, are not used much over 100 meters. Single mode, small diameter fiber is used with much higher power lasers for the long range stuff, but lacks the width of the multi-mode transmission. It's expensive and somewhat unreliable, as well. Essentially, manufacturers must try to align an 8 micrometer flashlight, strong enough to travel 10km, into a 9 micrometer fiber, then turn it on and off at 10 billion times per second and make it run continuously for 4 years at 80 degrees C. That problem's bankrupted a few companies so far.

It sounds a lot like they took a whole bunch of theoretical limits and pasted them into the article without context...then again, I'm just a programmer, not an optical engineer.

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Old lady surfs teh interwebs at 40 gigabits per second

Old lady surfs teh interwebs at 40 gigabits per second

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