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2 Terabits of Bandwidth

Pondscum writes "that Ciena has a new press release about Multiwave Corestream which will deliver up to 2 terabits of bandwidth. " I'm getting annoyed reading all these articles about X gigabit and terabits of data when I still connect with 1 channel of an ISDN line.

68 comments

  1. Re:Then switch to cable modem by Trepidity · · Score: 1

    I would if I could, but cable modems are not available in the majority if the United States. You seem to live in one of the few areas in which they are available.

  2. Cable? DSL? by Mike+Hicks · · Score: 1

    I highly recommend getting either a cable modem or a DSL line, whichever you have in your area. Bandwidth is bandwidth, as far as I'm concerned (especially if it's cheap ;-)

    1. Re:Cable? DSL? by yomahz · · Score: 1

      Obviously you've never had a bottle neck or were making a sandwich each time one occured.

      --
      "A mind is a terrible thing to taste."
  3. This technology is not for home use by dunc_man · · Score: 1

    The technology the article describes is optic fibre backbone bandwidth. This will never be in our homes. But it would speed up the Internet or in fact the Abilene project (Internet 2)

  4. Lucent is *shipping* 3.2 terabit/sec systems by JerseyTom · · Score: 1
  5. Chill out guys by Periwinkle · · Score: 1

    I did not expect to see such hate filled comments on an article about bandwidth. I mean sheesh, make due with what you have! If you can get something better, do, but don't get sore about other poeples fortune.

  6. Re:Hey quit telling me to upgrade! by zdarnell · · Score: 1

    Preach on, bro. I live in Fairbanks, Alaska, and its hard enough to get a decent modem ISP up here. Things have been getting better thanks to the OC48 they installed (www.alaskaunited.com), but us getting adsl is far off. While this may make us seem backwards, let me assure you, we're more advanced than alot of states are. We just need better telephone companies that feel that we'd like something better. But until then, People like me all over the US dont need to be told we're fools for having modems.

  7. I wonder what they can get through a switch... by Sun+Tzu · · Score: 1

    2 terabits per (second?) is uh, cool... but is there going to be switching technology that will let such a channel be shared in the next decade? If it can only be used in gigabit-sized frames, it's not nearly as useful. Does anybody know what the current state of the art is in switching and routing latency?

    Meanwhile, we can all hope aliens will drop by with an "indistinguisable from magic" solution to the last mile problem. ;)

    1. Re:I wonder what they can get through a switch... by Anonymous Coward · · Score: 0

      The state of the art can't switch that stuff all at once yet, but it can demultiplex it into multiple streams for a lot of Gig ports to handle.

      Gig switches are start of the art right now -- the internal switching infrastructures are pretty sophisticated. Put it this way: 1000 ports -> 1000 ports, you can't do it with a million point 2d matrix -- that'd be nigh on a million chips! You have to get clever.

      Not to mention the protocols they have to run internally to provided the future Quality-Of-Service requirements (guaranteed bandwidth for your private TV etc.). Lots of hardware, lots of research... lots of graphs :-)

      I think we have the technology to do full switching at Terabit rates if we really want it -- but not the money to build the things just yet. What use would we have for it right now? There's really no point treating it anything other than a big fat multiplex of "thin" ten-Gig connections.

      (IMO)

  8. Re:2 terabits per what? by FredFlintstone · · Score: 1

    Don't be a podantic dude! Here in Bedrock if someone asks what speed your lan is it is generally ok to reply "ten megabit" or "hundred megabit" or "it depends upon the user load -- It's slower than a slug on a piece of sandpaper today!" The "per second" is understood by most "normal" nerds. I say "most" because, ....er, well, this message is here isn't it?

    Fred

    Live long and prosper!

  9. Re:This equipment is meant for the backbone by Anonymous Coward · · Score: 0

    Actually, it's worse than this. A bigger netpipe just means that more physical lines will be consolidated into one physical line, and the old lines will be "retired". This will (1) save the backbone owners money, (2) not necessarily increase total network bandwidth, and (3) make the internet more fragile (since now a single backhoe can do the damage of 10 or 20 backhoes).
    I'd rather see more redundancy in the internet than faster individual backbones.

  10. Re:Hmmm... by Anonymous Coward · · Score: 0

    That's not correct. I usually score +2 by default on my posts. I've been -1'd more than once for being controversial.. the only effect it seems to have is on the likelyhood of you getting moderator access *not* your default score.

    Ellis has been working on another linux distribution. It appears to be unpopular at slashdot. Well, that's putting it mildly. I've seen several mentions -1'd within minutes of their posts. Somebody, or maybe a small group of somebody's, do not want that known to slashdotters.

  11. Re:SORRY ABOUT THIS by Anonymous Coward · · Score: 0

    Bend over & I'll moderate you down!

  12. This equipment is meant for the backbone by gavinhall · · Score: 1

    Posted by d106ene5:

    Quit your whining - the faster the backbone is, the faster your downloads will be.

    As for business with T1's - they can upgrade anytime they want. Most urban centers have access to bandwidth far exceeding T1 capacity. OC3 should be available in any urban center.

  13. Hey quit telling me to upgrade! by Rambar · · Score: 1

    Yah yah I hear all this shit about getting cable or ADSL. Let me tell you something wear I live its 56k or ISDN period. That's it. There is no cable or ISDN. There's T1 but that's outrageous. Since I'm not financialy independent moving isn't really an option and neither is going to college (generally gotta complete high school first right?).

    --
    -- Rambar
  14. Re:Hmmm... by Anonymous Coward · · Score: 0

    ...the only effect it seems to have is on the likelyhood of you getting moderator access...

    Am I wrong in assuming that this means that the moderators will slowly become an 31337 bunch of m0r0n5? (Oops, we were just about there already last week...).

  15. Then switch to cable modem by RelliK · · Score: 1

    Stop whining Taco. I'm pretty satisfied with the cable. I get speeds upwards of 100k/s and that's enough to surf the web and play Q2 with no lag.

    --
    ___
    If you think big enough, you'll never have to do it.
    1. Re:Then switch to cable modem by Anonymous Coward · · Score: 0

      Some of us live in areas normally covered by such services, but still fall through the cracks like me. There is a 'service hole' in my neighborhood so that our block has no access to higher speed connections (greater than phone based 56k), but everyone around us has access to ADSL & Cable modems...

      Sorry I'm a bit bitter so I had to comment...

    2. Re:Then switch to cable modem by Haribante · · Score: 1

      chill out, nobody is whining.. you know there are still those of us who dont have an option for anything more than 28.8 my isp doent even offer 33.6 or 56k, much less ISDN or anything faster.. we deal with what weve got, ya know? although.. heh what I wouldnt give for 10k/sec.. or low pings :)

  16. Re:What about the end user? by yomahz · · Score: 1

    If you've ever had more than a ISDN connection you would not have to ask this question.

    --
    "A mind is a terrible thing to taste."
  17. Re:What about the end user? by Jack_Frost · · Score: 1

    That only 6% of elligible customers actually make use of the cable modem option can be seen as a good thing, given that the bandwidth of the connection is largely dependent on the number of users. If the service became more popular and widespread the cable companies might have to expand their services, but I'd be worried about their response time. I've had bars on channel three and static on channel 19 for the past three months and they aren't exactly springing into action about that one if you know what I mean.

    As for the telcos and T1 prices, I've heard from family members who work for our phone company (Bell Atlantic & Nynex) that they have no interest in marketing data services to the private residential sector. Hence the horrid pricing (at least in my market) on ISDN and xDSL services, not to mention the sky high fees for T1 connections. Old phone company joke: What does ISDN stand for? It Still Does Nothing. This reluctance to cash in on a huge market can only hurt the phone companies in the long run. As it stands now I can get cable modem bandwidth that is comparable to, and in some cases exceeds, T1 service for about $30 a month. Compared with the $959 monthly charge for a T1 it's chump change.

  18. content, please? thankyouverymuch by Anonymous Coward · · Score: 0

    I'm getting tired of companies trying to sell terabyte bandwidth when there isn't enough content on line that I'd care to get to justify DSL access.

  19. That's 2 Terabaud there, sonny by Anonymous Coward · · Score: 0

    Darn it, in my day people didn't go around talking about bits this and bytes that. They said baud, and they were grateful for every one of 'em, dagnabbit.

    1. Re:That's 2 Terabaud there, sonny by jhme · · Score: 1

      Then again if it's 2TeraBauds, its becoming interesting... How many bits per moment?

      Just kidding.
      Jimmy

      --
      -- Fast, Cheap, Well. Pick two.
    2. Re:That's 2 Terabaud there, sonny by Captain_Carnage · · Score: 1
      Er, nope... Baud and bps are NOT the same thing. 56k modems actually connect at 2400 BAUD, but through modulation and compression are able to transmit data at 56k bps (theoretically -- we all know in practice it's a little less).

      Linux
      -----

  20. oh GEEE by Anonymous Coward · · Score: 0

    you sure have it rough, try using a 28.8 modem once in a while, and you'll see how stuck I am here at work....

  21. Nuke the Bells by Detritus · · Score: 1
    I found an interesting paper on telecommunications policy here. It's rather depressing.

    While communications technology improves at an amazing rate, the Bell companies are stuck in the 19th century. Their primary goals appear to be increased profits through elimination of skilled union jobs, investment in anything but their core business, and maintenance of the status quo in services and pricing.

    How difficult would it be to bypass them? I'm thinking of something like the Ricochet radio modems, except at much higher data rates.

    --
    Mea navis aericumbens anguillis abundat
  22. Re:What about the end user? by Anonymous Coward · · Score: 0

    Like I said, they are just widening profit margins. The ISP half of a T1's cost hasn't changed much, and the telco's has been static for a long time. Of course you can get cheaper t1's, but I'm talking about those of equal quality. You can't really compare a uunet t1 to a savvis or digex t1.. Of course, bandwidth is getting a lot cheaper for the tier 1 providers, but I have yet to see cheaper prices for end-users.

    -djp

  23. Re:TRY CONNECTING AT 28.8 YOU WHINEY BITCH by Anonymous Coward · · Score: 0

    Hey, _I_ connect at 28.8 and do just fine thanks.
    It's not great, and useless to serve or for graphics. But the leap up to "50"k isn't really worth the cash. 100k maybe, 50k no.

    Sure I'd love cable, but then the ONE cable company in the area has been promosing to deliver it for 2 years now. I'm not holding my breath.

    Actually, as I'm in the UK (when I am), I'll be getting cable as soon as it arrives because it'll cut my phone bills by 80% straight away. I.e. cost is much more significant than speed.

    (Average spending rate: >£100 per month. Peak times >£300. Cable rental rate? Predicted £30 per month).

    And I can run myself a telnet server. Having a computer of my own that's accessible from anywhere on the net is amazingly useful a resource. So far I've had one at work for a while. Incredibly handy.

  24. Re:2 terabits per what? by Crakor · · Score: 1

    seeing as how at least in connection rate soemthing per second is basically the standard form of expression I would think so

  25. good grief by stuboy · · Score: 1

    come on.. what about those of us who can't afford isdn, and don't have cable or adsl in our area? huh? HUH? quit your bitching... i miss my ethernet... i won't be whining when i get back to college =)
    switched 10 megabits to fddi to oc3 baby!

    stu =)

    --
    hi =)
    1. Re:good grief by Starbuck · · Score: 1

      i'll deal with 2 t1s and a 100 meg switched ethernet. there aren't that many students, and 200k/s on a bad day is fine by me.

    2. Re:good grief by Anonymous Coward · · Score: 0

      Only an oc3? Sheesh thats slow!
      ;)

  26. Re:TRY CONNECTING AT 28.8 YOU WHINEY BITCH by Haribante · · Score: 0
    NOT repeat
    • NOT
    COOL!!!
  27. Hmmm... by Ellis-D · · Score: 1

    Wow, network technology that doesn't seem like fluff. Not like the exobit over powerlines. But it seems like we are going to be able to progress in the future of networking and get out of the age of 26.4k connections. My cable connection is good enough for me right now, but hey this will help out in the back bone area, which here in the US does need major updrading.
    I ate my tag line.

    --
    I ate my tag line.
    -=Ellis (D)25=-
    1. Re:Hmmm... by Axe · · Score: 0

      New system marks it down to 0 automatically if
      you ever had -1 before I guess - like I did
      when speaking up against "C" recently...

      --
      <^>_<(ô ô)>_<^>
    2. Re:Hmmm... by Anonymous Coward · · Score: 0

      Hee hee .. anyone remember Pyroto Mountain? (Or Volcano Island?)

    3. Re:Hmmm... by Anonymous Coward · · Score: 0

      There is no reason for this post to have been marked down to 0. From looking at his post history (everything marked down to 0), it seems to me that some moderator has a grudge against this poor guy.

  28. Re:Not even a trickle by Anonymous Coward · · Score: 0

    Bend over and I'll give you a problem with the last 12 feet!

  29. Hah... by Da+Unicorn · · Score: 1

    Just reading about this kind of bandwidth makes me jealous.

    I am awaiting the arrival of 2way low orbit satellite links.

    I would just about kill to have even a stable 28.8 capable telco line. But I like living out in the boonies and the infrastructure just does not exist.

    Be happy for what you have.

    I am happy I don't have to worry about carrying a hogleg so I don't get mugged in some rat infested city.

    Da Unicorn (941) ;=>

    --
    #941 ;=> 43.4 N 91.9 W
  30. 2 terabits per what? by Ed+Avis · · Score: 1

    You can't measure bandwidth in terabits; that's like measuring a car's speed in miles. Surely they mean 2 Tb per second?

    --
    -- Ed Avis ed@membled.com
    1. Re:2 terabits per what? by grambo · · Score: 1

      Well, at the risk of being overly pedantic, bandwidth is measured in _frequency_. The unit of Frequency is Hertz (Hz, formerly known as cps)which is one cycle per second, and to omit the words 'per second' is quite valid. You have an electricity meter in your house that measures 'kilowatts', but it is really mesuring the rate of power consumption over a given time, an hour in this case.
      Of course in these days of advertising hype, I agree with you in that they _should_ specify a time, otherwise it could just be their marketing dept. saying "... Er, so how can we make that number BIGGER?..."

      Cheers,

      Graham Cattley
      Electronics Australia Magazine

      --
      `ø,,ø`ø,,ø`ø,,ø`ø
    2. Re:2 terabits per what? by Joe+Patry · · Score: 1

      Hell, its more like "ten". Once you're on the topic of networking, I rarely hear the kilo/mega/gigabit part.

    3. Re:2 terabits per what? by oopy_-_ · · Score: 1

      That's the way it is always referred to. 10 Mbit/sec network connections are frequently referred to as "ten megabit" connections. Sure, it's not a wise abbreviation, but pretty much every network speed is rated per second.

  31. What about the end user? by Anonymous Coward · · Score: 0

    I'm getting tired of all these stories since we aren't seeing much effect on the end user. When will the time come when small to medium businesses have more than 1 - 4 t1 lines? I'm also one of the lucky few who have had a cable modem since 1996 and have regularly downloaded at t1+ speeds, but I still feel the evolution is a little slow. Heck, only 6% of people who CAN get cable modems have them. In short, I really don't care until it has an effect on people other than helping companies build backbones that widen profit margins and allow them to get in the telco game. Seriously, I havent seen T1 prices change very much lately.

    -djp
    dennis@potechin.com
    -- forgot my password

    1. Re:What about the end user? by Paul+Johnson · · Score: 1
      Seriously, I havent seen T1 prices change very much lately.

      Take a look at Band X. They act as a trading BBS for buyers and sellers of long-haul and international voice and data bandwidth, and are moving into providing a settlement mechanism whereby a voice or data switch does the routing once a contract is made. They also produce a number of market indices which show that world-wide comms prices are halving every 12 months, and within Europe they are halving every 6 months.

      Of course the telcos are not passing on this saving yet, but they will have to, otherwise ISPs and start-up companies will do it for them.

      Paul.

      --
      You are lost in a twisty maze of little standards, all different.
    2. Re:What about the end user? by Anonymous Coward · · Score: 0

      Believe me, the minute I can get either cable or DSL I will have it... One of the sucky aspects of living deep in the Mississipp boondocks.

      Although I could do satellite.....
      but it's kinda sucky.

  32. Re:Nice Lie by Anonymous Coward · · Score: 0

    Hmm.. wouldn't it be reply, then paste, then...
    Sounds like this guy is hunting for bugs or something.

  33. What BANDWIDTH???? by Guyote · · Score: 1

    I agree.....In my area ( obviously not a "target market area" ) I still do not have anything higher than the infamous 56k ( hehehehe )....and no definate time when anything else will become available.

    I too am weary of the talk of higher bandwidths at reasonable costs.

    --
    Guyote was here.....
  34. Nice Lie by Anonymous Coward · · Score: 0

    If this is a mistake, then I suppose that the millions of copies of excite's web page that you posted over on the RedHat IPO thread (as seen on your User Info) were all you pressing Submit by mistake over and over and over?

    1. Re:Nice Lie by Anonymous Coward · · Score: 0
      Hmm.. wouldn't it be reply, then paste, then... Sounds like this guy is hunting for bugs or something.

      Most likely he is a complete moron which attempt to harm slashdot.

      Probably he is trying to write a script to automatically generate a bunch of responses. I guess his IP address is already on Rob's desk.

  35. Ya Taco, you need to move up in the world... by Mullen · · Score: 1

    I agree. You people out there in the world need to get more bandwidth. No one is going to deliver a magic connection that gives 2TB over your power lines. Cable and DSL is the only way to go right now.

    --
    Linux O Muerte!
  36. Re:TRY CONNECTING AT 28.8 YOU WHINEY BITCH by Wolfey · · Score: 1

    Actually, someone may well be preventing him from buying a faster modem, if not buying one, at least putting it to use. In my area, ISDN is not available. Neither is DSL or Cable. The ONLY thing available is a lousy 24k max over bad analog phone lines. Not that that gives anyone a right to be rude, just pointing out that what you were saying may not be entirely doable.

  37. Re:TRY CONNECTING AT 28.8 YOU WHINEY BITCH by Bigman · · Score: 1

    Well hell I bought a faster modem - a 56k - and I only ever connect at 45333... Even then I'm lucky to get download rates in excess of 3kb/s due to net congestion.
    What other options? ISDN? costs about $450 to get connected - no thanks.
    No ADSL/SDSL here, no cable modems,
    There is Tele2 radio connection at 128kbps but your limited to 200Mb/Month transfer...(!)
    So for now I will stay with my modem. But better backbone tech will let me actually use all my 45333 bps (hopefully)....

    --
    *--BigMan--- Time flies like an arrow.. but personally I prefer a nice glass of wine!
  38. Re:64K ISDN... Luxury by Guyote · · Score: 1

    Wow, that SUCKS big time!!! We need out "own" phone-company-less network.....I wish the wireless market were more mature....like using part of the upper HAM frequencies or something......maybe someday, huh?

    --
    Guyote was here.....
  39. Re:Hey! by Anonymous Coward · · Score: 0

    Where's a moderator when you need one....

  40. Not even a trickle by Anonymous Coward · · Score: 0

    With the way most folks actually are planning to use any connections, the problem is the last 12 feet. Almost noboby I talk to in everyday life could have the faintest idea of moving data from a cable modem or DSL either into the living room (where the set top box will be)or into the den/bedroom (where the computer is). As for any networked "appliance"-sized applications (like MP3 players)there exists no way to do thses things that an ordinary person can understand.
    That's the real reason why it's all going to come down to Pay Per View for a long, long time.

    1. Re:Not even a trickle by Anonymous Coward · · Score: 0

      this is false. First, cable modems use the same coax that your cable line does. The connection is achieved over 1 standard 6mhz cable channel. All you have to do is get a splitter -- or if it's a set top box it can do data and cable at the same time. As for dsl, most people have telephone lines in many rooms, and especially near the computer.

      You're right though about one thing. Most people have problems cabling their television and vcr. That's why they get someone else to come and wire it for them :) Of course, today's kids, who will be tommorow's adults are computer literate. I know of a lot of kids who are pretty young and are making custom audio cd's just downloading mp3's off the internet.

  41. Why terabit connections are good by Graymalkin · · Score: 1

    Having a terabit per second isn't meant to instantly drop the price of a T1 or T3. It's meant to facilitate the drop in those prices. I will be nice when all the backbones are replaced with much bigger pipes, then the overall data transfer cost will be oodles less than it is now. Eventually these savings pass on to you the customer, not right away, eventually. 28.8 and 56.6 connections are going to be around for a while yet. They are easy for local telcos to handle since they dont need any new hardware and the equipment is very inexpensive for the user. If telcos can backbones can squeeze more data into existing fiber networks they get very happy and end up lower prices on smaller pipe connections like T3's and T1's. It also helps to relieve congestion because of small pipes, now all the gamers dont need to complain about suzy hommaker watching TNN in real video.

    --
    I'm a loner Dottie, a Rebel.
  42. Re:Hey! by Anonymous Coward · · Score: 0

    Does this really deserve a score of 2? wtf?



  43. Re:TRY CONNECTING AT 28.8 YOU WHINEY BITCH by Accipiter · · Score: 1
    Nobody is keeping you from buying a faster modem.

    -- Give him Head? Be a Beacon?

    --

    -- Give him Head? Be a Beacon?
    (If you can't figure out how to E-Mail me, Don't. :P)

  44. this isn't for the "last mile" by Roblimo · · Score: 1
    Um, this TB/sec optical deal isn't going to speed up your home or small business connection anytime soon. It's a backbone thing. I know a couple of people at Ciena, since I live about three miles away from their place and run into people who work there in bars all the time. But it sure would be nice to have an alternative to Comcast's "We're a monopoly so we can charge you $400 for a $120 cable modem and give you crappy customer service because we're the only people here who are ALLOWED to run CATV to your house, and if you don't like it, offer bigger bribes to your councilman than we gave him, ha, ha, ha" @home, also know as "the only high bandwidth game in town."


    Ah, well. Someday we'll have competition....

  45. When bandwidth is abundant and free by GenePrescott · · Score: 1

    George Gilder, author of Microcosm, Life After Television, the upcoming Telecosm, and fee based newsletter Gilder Technology Reports believes one benefit is the elimination of most of the expensive switchs we currently are routed through. So while I continue to "make do" with bonded ISDN (128K) I anxiously anticipate the impending bandwidth availability. There is huge pentup demand for bandwidth (even by folks who aren't aware of it :-). The Gilder paradigm will change where we impute value in communications.

  46. short-haul system by gavinhall · · Score: 1

    Posted by Bill, the Galactic Hero:


    The maximum bit rate per channel is OC-192 (9.953 Gb/s, or about 10 Gb/s).

    So 2 Tb/s would require 200 such channels.

    Assuming that the channel plan is a 100 GHz grid (0.8 nm/channel in wavelength), 200 channels would require 160 nm.

    This is beyond the bandwidth of standard erbium-doped fiber amplifiers (1530-1560 nm). Even if you went with L-band EDFAs you still wouldn't make it.

    So if the grid is 100 GHz, this is an unamplified system. The only way to make the system cost effective is to use is for point-to-point short-haul (100 km or less) transmission.

    If the grid is 50 GHz, the required amplifier bandwidth would be 80 nm. This makes it possible to use two-banded amplification, so it could be a long-haul system. But it's trickier to find good WDM components at 50 GHz which won't screw up a 10 Gb/s signal.

    In other words, they are probably targeting metro-area networks.

  47. 64K ISDN... Luxury by Anonymous Coward · · Score: 0

    Oh wow, like 64k is just sooo slow. Give the poor people living under the opression of a monopolistic telephone network a chance. In Australia there is 1 telephone company that ownes all the final run copper phone lines. (between exchange and termination) This means that it costs about A$20,000 / year for a permanent 64k ISDN (including net connection but excluding the 19c/meg bandwidth charge) because no one else can offer it.

    Not just that but the telephone company is putting in fibre in a lot of area except for the last couple of hundred meters of copper. They are compressing phone lines together into fibre and a by-product is that they are filtering out the frequencies that 33.6 and v.90 (28.8 is still fine) so lucky me with my 56k modem and ending up with 28.8.

    Thus ends my rant.

  48. SORRY ABOUT THIS by gavinhall · · Score: 1

    Posted by MaldaSuX:

    I'm sorry about this, I thought I'd pressed Preview. I was trying to gauge how big a slashdot poting could be. But I must have pressed submit by mistak. Please knock this down to -1 or delete it.

  49. Hey! by webslacker · · Score: 1

    Play nice. Your post isn't doing any better.

    1. Re:Hey! by Anonymous Coward · · Score: 0

      Sure it does. It takes 1 moderator to decide on the score, and another 3 to bump it back up...