Researchers achieve optical data transmission speed of 44.2 terabits per second • Hacker News Board

Re: Researchers achieve optical data transmission speed of 44.2 terabits per second

#81

Post by rejberg » Sat, May 23, 2020, 8:21 PM UTC

jlgaddis wrote: post #73

YayamiOmate wrote: post #22

Earlier quoted context omitted.

Much better, because what the heck is "internet speed". The most sensible definition to me is payload over IP protocol possibly on an existing commercial link. That's the only way I see relation to internet and the internet.

In the past, the "Internet speed record" was measured in units such as "terabit meters-per-second": > ... they had managed to send nearly 840 gigabytes of data across a distance of 16,346 kilometers (10,157 miles) in less than 27 minutes, at an average speed of 4.23 gigabits per second. > This was equal to 69,073 terabit meters per second (or 69,073 trillion bits sent through one meter in a second), which exceeded th…

> In the past, the "Internet speed record" was measured in units such as "terabit meters-per-second":

I like this unit better, because then a jetliner full of hard drives could be a valid competitor.

Re: Researchers achieve optical data transmission speed of 44.2 terabits per second

#82

Post by rayiner » Sat, May 23, 2020, 8:45 PM UTC

It’s not “internet speed” if you can’t route at that speed.

Re: Researchers achieve optical data transmission speed of 44.2 terabits per second

#83

Post by wbl » Sat, May 23, 2020, 9:00 PM UTC

rayiner wrote: post #82

It’s not “internet speed” if you can’t route at that speed.

Bundled links via ECMP or even round robin are a valid strategy.

Re: Researchers achieve optical data transmission speed of 44.2 terabits per second

#84

Post by tudorw » Sat, May 23, 2020, 9:21 PM UTC

Denvercoder9 wrote: post #63

PopeDotNinja wrote: post #4

And even it that speed, I bet pre-roll ads on videos still end up buffering.

Yes, we need better software (engineers).

And we need better consumers, kidding, we love you.

Re: Researchers achieve optical data transmission speed of 44.2 terabits per second

#85

Post by mcnamaratw » Sat, May 23, 2020, 9:43 PM UTC

The article seems to be comparing a hero experiment to access rates. Why not at least compare to telecom backbone rates? You can do at least 1.6 Tbps per fiber, long haul, with commercially available gear.

If we use telecom hero experiments as the standard, 44 Tbps is not the record: https://en.wikipedia.org/wiki/Fiber-optic_communication#Stan...

Re: Researchers achieve optical data transmission speed of 44.2 terabits per second

#86

Post by ChuckMcM » Sat, May 23, 2020, 9:51 PM UTC

rejberg wrote: post #81

jlgaddis wrote: post #73

Earlier quoted context omitted.

In the past, the "Internet speed record" was measured in units such as "terabit meters-per-second": > ... they had managed to send nearly 840 gigabytes of data across a distance of 16,346 kilometers (10,157 miles) in less than 27 minutes, at an average speed of 4.23 gigabits per second. > This was equal to 69,073 terabit meters per second (or 69,073 trillion bits sent through one meter in a second), which exceeded th…

> In the past, the "Internet speed record" was measured in units such as "terabit meters-per-second": I like this unit better, because then a jetliner full of hard drives could be a valid competitor.

Which is exactly why it was chosen, the 'purpose' of networks is moving data from point A to point B so the 'goodness' of networks is how much data from point A to point B and how far away is point A from point B.

Then the Internet became a transport for time sensitive data (movies, voice, Etc.) and so the latency between bits gets wedged in sometimes.

Re: Researchers achieve optical data transmission speed of 44.2 terabits per second

#87

Post by ksec » Sat, May 23, 2020, 10:01 PM UTC

lostlogin wrote: post #69

> The highest commercial internet speed anywhere in the world is currently in Singapore, where the average download speed is 197.3 megabits per second (mbps). I’m very surprised by this. I would have assumed the leading country would have had something a lot closer to gigabit. ‘Good enough’ must be the user reaction. Years of terrible connections have left me chasing down every last bit, even though fibre is now inst…

Because that assumption would means everyone is getting a GPON / Fibre Network. In reality even if 20% of the nation is still connected via ADSL, your average speed would have been significantly lowered.

I still think we haven't fully solved the last mile problem yet. Fibre installation still sucks for most people. And vast majority of new home dont have additional pipes for Fibre built in.

Re: Researchers achieve optical data transmission speed of 44.2 terabits per second

#88

Post by dang » Sat, May 23, 2020, 10:04 PM UTC

amelius wrote: post #6

This is not directly internet related. The original title is better: > Ultra-dense optical data transmission over standard fibre with a single chip source As a compromise, I'd propose: > 44.2 terabit/s optical data transmission over standard fibre with a single chip source

I've taken a crack at it.

Re: Researchers achieve optical data transmission speed of 44.2 terabits per second

#89

Post by hutzlibu » Sat, May 23, 2020, 10:21 PM UTC

dahfizz wrote: post #38

bobajeff wrote: post #5

I like like the bottle neck in the future will be Harddrive/SSD file read/write speeds. Honestly, I'd love to have my hands on a terabyte drive with 1TBps speeds.

I think latency of a network will always lag behind that of local storage. Even traveling at the speed of light, going around the circumference of the earth takes over 100ms. Obviously not all network requests go around the globe, but the fact that local storage is physically closer to your computer will always be a sizeable advantage.

Plus the fact that cloud storage has to be stored on physical storage as well ...

Re: Researchers achieve optical data transmission speed of 44.2 terabits per second

#90

Post by myrandomcomment » Sun, May 24, 2020, 2:59 AM UTC

wtallis wrote: post #75

zepearl wrote: post #65

Earlier quoted context omitted.

I'm sending right now at home 7TB from my server to my NAS and it's taking aaages over my internal 1Gb/s ethernet network. Am I right thinking that there are (still) no SOHO network switches that can handle faster speeds (at least 2Gb/s) that don't have active fans & don't get hot and that aren't super-expensive? The last time I checked, about 1 year ago, I didn't manage to find anything.

Anything with multi-Gig or 10GbE is still quite expensive, unless you score a good deal on used enterprise gear that will definitely have screaming fans. There are a few switches that have mostly 1GbE ports and a few 10G ports and are fanless.

Define expensive? 10GbaseT is not that much anymore. Also a number of vendors are supporting 2.5/5G speeds. Ubiquity has some reasonable kit. I am planning on dropping a 10G into my FreeNAS box and getting a thunderbolt 10G for my MacBook. The idea that the 10GT PHY can work in an adapter is pretty cool. Back in the day I worked at a startup that did one of the first 48x10GT switches and the PHY was 5 watts each x 48. Sorting the cooling was fun. As DC switch the noise was fine, but working with the prototypes at your desk or in the lab was quite loud.