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2.56 Tb/s Transmission Record
RalfM writes "2.56 terabits of data per second in new transmission record by Bell Labs, Lucent's research arm."
So this thing could transmit my entire mp3 collection in under a half second.
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Good, and then you'll have to wait 4 hours for your HDD to write them ;-).
One shall speak only if what one has to say is more beautiful than silence
Tera is a prefix meaning one trillion (10^12), in this case it refers to one trillion bits (not bytes).
What?
but no seriously can anybody think of a practical use for a tb/sec connection?
pr0n. lots and lots of pr0n.
this will do wonders for out backbone- maybe even help us lower the general price of high bandwidth net connections. imagine if your local ISP's incoming bandwidth could easily be doubled? that *might* mean more alternatives/chaper bandwidth for us consumers.
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Not for one person, but for a million people, I could think of a lot of reasons for one.
What?
Question's like "who needs this much bandwidth/disk space/ram/cpu power" seem rather silly - don't worry, we'll catch up :)
sic transit gloria mundi
While I have to admit 2.56 Tb/s is darn impressive the article doesnt mention if this can be applied to currently existing fiber optic networks. After having invested millions in new fiber and equipment for my area I seriously doubt my provider (twc) would be willing to just jump up and make large (read as: expensive) modifications. Especially if our network is "just good enough". Advances like this are interesting but how long will it take to "filter down" to us consumers?
Maybee I can finaly get a good ping in quake now.
Hacker Media
Actually, though technically a terrabit should be 10^12 bit, I think they mean the binary power closest to one trillion - 2^40 (or whatever it is). I believe that's technically called a Tebbibit or somesuch nonsense, that never caught on so everyone just calls it a terrabit (except for HD manufacturers who try to use this to pass off their products as having more space than the really do)
sic transit gloria mundi
So this thing could transmit my entire mp3 collection in under a half second.
/dev/null, so you may as well save the net bandwidth and use the mv command.
Sure, and unless you have a storage device that can accept data at that speed, the only place your MP3s are going is
or whatever number of r's it has
sic transit gloria mundi
being trite and obvious has never been harder...
sic transit gloria mundi
This may come as a shock to you, but resizing a 400x300 picture to 400000000x300000000 does not result in a more detailed picture.
Why, for downloading pr0n and playing quake of course !
The theoretical maximum (for silica) I've heard quoted is 40Tbit/s, but I'm sure you could squeeze a bit more out. The current limit is the gain spectrum of the Erbium Doped Fibre amplifiers that make sure a signal can travel long distances, these have a (relatively) narrow gain band. Semiconductor Optical Amplifiers (think of them as diode lasers, without the mirrors) could have a wider spectrum than the optical fibre! Lots of problems with them currently though.
I think I'll wait for the quantum dot lasers to catch up.
-Yarn - Rio Karma: Excellent
um, I don't think this thing is meant as a "consumer" kind of service.
sic transit gloria mundi
No, 'cause the LambdaXtreme unit used is unbelievably expensive, and you need at least 2 of them.
Also, you need EBDA single-mode fiber, which isn't the majority in the ground.
Soon, though.
Charles E. Hill
Core Network Engineer
Lucent Worldwide Services
Learning HOW to think is more important than learning WHAT to think.
I think this is meant for the "common person" to understand. Of course the "common person" has a really good idea of how a novel, or even a giganovel compares to digital content such as web-pages. So I really think the point of the comparison was to have a Big Number. :)
sic transit gloria mundi
So this thing could transmit my entire mp3 collection in under a half second.
Engineer wanted for creation of 2.56Tb/s DRM system. Must be able to scan for copyright flags in data stream and deny transfer permission.
No they're not. Grrrr...
Maxtor started the base 10 crap in the mid 90's so stupid users could figure out how much space they had.
64kbps, 128 kbps, 384, 768, 1.54 Mbps...
And file sizes are STILL in traditional base 2. When someone says a file is 1KB, it's 1024 bytes, not 1000 bytes.
64KB of RAM is 65536 bytes, not 64000.
Just because someone bastardized the numbers for idiots doesn't mean it's actually propagated into reality.
Packaging and marketing doesn't change the guts, it just makes it easier for the average joe to feel like s/he knows what s/he's talking about, even if they don't.
I don't have a solution, but I certainly admire the problem.
What sort of device can read that quickly? That's an order of magnitude or so faster than the fastest RAM I've seen. I suspect they simply transmitted a simple repeating pattern rather than actually reading and writing data from a device of some sort.
Input error. Replace user and press any key to continue.
And in related news:
These same engineers hope to set a new 1.00 Tb/s reception record later today.
-
- - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
okay so now you put up the challenge I had to go looking.. damn you
1/2 serious 1/2 not so serious post here...
Lets imagine the population of new york which is a tad less then 19 million. now lets give each of them a phone.
given the assumption that no more then 35% are on their phones at any given peak time we have 6.65 million pone conversations going on. Now lets assume that of these phone calls no more then 40% are inter-city phone calls which would use this type of pipe.
2.66 million calls now.
Now lets say that compression algorithims bring the average phone call bandwidth to say 20Kbit/s
quick math leads that to 53 Gb/s so all of New York uses for voice communications on a high end is 2% of this pipe.
so now we have 98% left to fill
Ive heard that an *average* (this puts us in the minority) computer user on an internet connection will use 40kbit on average during a session with the net. and with that number on average there could be 64 million people using that line (which seems high to me) but I can't find any statistics to backup that 40kbit estimate at this time.
So here of course are the lame responses:
one script kiddie with an Outlook "add-on", a remote exploit he downloaded somewhere and to much time on his hands
One large dorm full of p2p, porn, warez hungry students
one slashdot reader who wants to test to see if this article is true.
Clustering. Currently the bottleneck in clusters is network connections, simply put most computers you will cluster are faster than 100Mbps and 1Gbps networks. THe faster you move the data between systems, the faster your cluster- High end supercomputers do this, maximizing transmission speed between the individual porcessors as much or more than the CPU speed.
Lets say you take 4 Quad PIV 1Ghz systems, build two Beowulf clusters. The one with Tb/sec networking between the systems will be faster, noticeably, than the one with Gb/s networking.
This will also push things like Gb/s networking from its heights down to the average person. I don't see the average person having a Tb/s network anytime soon, but Gb/s networking will probably be more common within a couple of years. That will probably be the biggest benefit of this advance, the people that absolutely need the fastest networks go to Tb/s, and those that only WANT a fast network now get Gb/s
that wasn't really the question.. I think most ofus know that our data/voice is going through fiber, the question washow expensive is it to upgradecurrent systems to the newest technology.
No, the base two numbers are stupid. They are only marginally reasonable for RAM size, but it makes no sense for harddrive sizes. Can you tell me how many bytes are in 43MB, quickly? Mixing base 2 and base 10 makes no sense because humans always have to convert it to base 10 in the end.
My only political goal is to see to it that no political party achieves its goals.
Read this:
So what's that mean? An ISDN 64Kbps B channel is, in fact, 64000 bits per second. A typical 115.2Kbps maximum rate on a PC's serial port is 115200 bits per second.
Hard drives are also measured using SI definitions. The power-of-2 definitions come from memory. Memory devices often inherently have power-of-two sizes, since the n address bits going into a memory provide 2^n addressable cells. Hard drives have no inherent reason to be a power-of-2 size so SI units make much more sense.
Enjoy your job, make lots of money, work within the law. Choose any two.
Most people I know have way more then 2.5gigs of MP3s, I think I have 20 or so myself. Taco indicated that he had about 150gigs himself. (1.28Tb = 163TB)
autopr0n is like, down and stuff.
Ping times (for small ping sizes) are approximately equal to the amount of time it takes for light to pass through the fiber and back. Most people in telecom use 1ms per 100 route miles of fiber as a rule of thumb. (remember the fiber does not follow a straight line between cities!) So if it is 4200 route miles between NY and LA, your ping will take 42 ms to get there and 42 ms to get back = 84 ms.
You can't change this basic fact of physics. If you were running somehow on a microwave system instead of fiber, you would actually approach the speed of light in free space, so your ping time would be a little faster.
By the way, there are other factors that go into the delay of your ping besides propagation delay. Other things such as: congested buffers in routers along the way, serialization delay to clock the packet out of your device (negligible on fast links, but a big effect on dial-up), the response time of the remote device, devices delaying packets to do an ethernet arp, etc... Propagation delay usually ends to be the biggest factor when you are talking about ping times.
Send on Demand Entertainment ... its the only thing that could satiate this type of pipe and then only with a large subscribition base
Can you tell me how many bytes are in 43MB
What the hell diffrence does it make? I mean really? Are you ever going to need to know the exact number of bytes of that file? (and if you are, are you ever going to need to figure it out by hand?)
The maximum size of anything on a computer is going to be a base2 number, always. two gigs max for a file means two gigs, (2^30). There is no more reason to mesure ram in that size then hd space.
autopr0n is like, down and stuff.
So this thing could transmit my entire mp3 collection in under a half second.
Most of those gains are due to the following ingeniuos compression scheme:
1. Download Taco's copy of Bobby Vinton's "Melody Of Love".
2. Instruct the client to make 135,275 copies locally.
Someone you trust is one of us.
Yet, I still can't even get 144 Kilobits/s from Verizon at 5 miles... where's my Fiber-to-the-home?
I can see that the media industry (maggots) will have a plan for you to have a 500gb/sec connection and your machine will be a thin client to a server at the RIAA HQ (If it is not already destroyed), Cant to much about copyright 'protection' now could we?
As In, If you want a 500gb/sec pipe you have to run one of our thin clients. This pipe will only work with it. No PCs will be able to use it because of Encryption, authentication etc.....
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Real time broadcasting of videos from studios. No more damned taped delays. :)
:(
All sent in whatever formats are needed, all at once. Nice and speedy like.
I myself am sick and f*cking tired of MPEG2 compression artificats in my digital cable.
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For the testing to be meaningful, you need to be able to check and compare it with what you get at the other end - So they need SOMETHING recording the data, at both ends.
"Dense" in DWDM commonly means more than 10 wavelengths simultaneously, though it varies depending on the vendor.
Pushing beyond 40 Gbps requires turning the laser on and off faster -- something that is going to be a real trick considering how fast it is moving right now.
Of course, finding the other components that can actually USE data moving at 40 Gbps, much less multiple streams of it, THAT will be the trick.
Learning HOW to think is more important than learning WHAT to think.