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German Cable ISP First To Deliver 4700Mbps Internet Connection

Mark.JUK writes "It's enough to make grown IT workers cry. German cable operator Kabel Deutschland claims to have become the first provider to successfully achieve a real-world internet connection speed of 4700Mbps (Megabits per second) after they hooked up to a local school's test account in the city of Schwerin. The ISP, which usually delivers more modest speeds of up to 100Mbps to home subscribers, used its upgraded 862MHz network, channel bonding, and the EuroDocsis 3.0 standard to achieve the stated performance. But don't expect to get this kind of speed tomorrow; right now there's no demand for it among home users, and you probably couldn't afford the bandwidth anyway." ("No demand at its current price," at least.)

23 of 121 comments (clear)

  1. Wow, I'm amazed... not. by imagined.by · · Score: 5, Informative

    They used 12 modems and thus 12 seperate channels which means in reality, they only transmitted about 400mbit per "subscriber" (cable).

    While this is nifty, Kabel Deutschland subscribers' bandwith is often shared, which means at peak time you don't even get 30 of the promised 100mbit. In addition to that, they slow you down after a 10gb quota/day. And in addition to that, they often throttle certain protocols, namely torrent.

    This is one of the worst ISP in Germany who just made a totally useless world record.

    1. Re:Wow, I'm amazed... not. by fuzzyfuzzyfungus · · Score: 4, Interesting

      These 'ISP record' attempts are doubly pointless(in addition to the fact that they never indicate the slightest enthusiasm to actually offer something even approaching that speed, at any reasonable price, to any of their customers) because they typically are markedly slower than the already-standard high-speed interconnects that tie more central sites together.

      If you are going to play pure speed-racer games, it really makes more sense to just have a set of categories based on medium(eg. 1km legacy POTS copper, 1km legacy coax, 1km single-mode fiber, 10km of each, etc.) There are real engineering challenges, and nontrivial advances, in the ability to shove more data over a link of a given nastiness; but 'records' based on unrealistic location stunts are just pointless(Telco B could just pull some fiber to a convenient school tomorrow and pull off a 'first-to-deliver 10,000mbps internet connection! and Telco C could just pull a few more strands and deliver twice that, and so on).

      If you want to boast about how cool an ISP you are, you need speed, breadth, and price. If you want to boast about your super-sneaky transmission methods, just tell us about the medium, the distance, and the bitrate; but this nonsense is a pure stunt.

    2. Re:Wow, I'm amazed... not. by a90Tj2P7 · · Score: 2

      Even if it had been one modem and line, being able to use multiple channels for downstream and upstream traffic was pretty much the point of DOCSIS 3.0. Assuming the network itself has the bandwidth, getting higher speeds is really just a matter of using more lanes - for 4700 Mbps down, I think that'd be around 90. It'd be cool and all, but raising the max bandwidth of a DOCSIS 3.0 device doesn't really take much other than network capacity and a modem that will use that many channels - channel bonding isn't new.

    3. Re:Wow, I'm amazed... not. by Bengie · · Score: 3, Interesting

      subscribers' bandwith is often shared

      All ISPs are shared at some level. I'm assuming you mean the node bandwidth is shared/over-subscribed?

      They used 12 modems and thus 12 seperate channels

      Many modems can bond up to 8 virtual channels on the down stream. As far as we know, it could have been anywhere from 1-8 8mhz channels per modem. Even with a single 8mhz channel, DOCSIS3 can bond 8 virtual CDMA channels for a combined bandwidth of 8X50Mb/s=~400Mb/s (EuroDocsis). DOCSIS3 has no limitation on how many channels may be bonded, but I'm not sure of any modem that supports more than 8 right now.

      Still cheaper/simpler to use fiber, but cable can manage some crazy high speeds if you throw enough tech/money at it.

    4. Re:Wow, I'm amazed... not. by AngryDeuce · · Score: 4, Insightful

      While this is nifty, Kabel Deutschland subscribers' bandwith is often shared, which means at peak time you don't even get 30 of the promised 100mbit.

      Still better than what I am pulling down during peak times here in Wisconsin. I pay for 25 Mbit and the only time I ever seem to be able to get it is when I'm running Charter's speed test on their web site at the behest of the CS people when I call to complain (how convenient, am I right?). Any other time, my 25 Mbit connection tops out at 12, and that's off-peak. Between 5PM-9PM, I'm lucky to pull down 3 Mbit and usually have

      The last Charter tech that came out to my house (and I have them out at least once a year for service issues) told me to my face that my node was way over-saturated (due to the high volume of apartment communities in this area, there are 300 units in my complex alone and there are a dozen complexes along this street) but Charter doesn't upgrade their shit until enough people start dropping the service to make it worth their while. I guess QoS means jack shit to them...I know, surprise, surprise. Still, it's irritating because my only other choice is shit-tier DSL and from what other residents have told me, the phone lines in this building are piss-poor, too.

      God what I would give for some real competition in this area. I imagine our Charter issues would evaporate virtually overnight...

    5. Re:Wow, I'm amazed... not. by networkBoy · · Score: 2

      I lived in an apartment with shitty wiring, makes for some very frustrating DSL experience. Since I was at the perimeter of the complex and near the junction box the tech was able to work some voodoo magic and get my 3Mbps connection to work at at least 2...
      I have always wondered why an apartment wouldn't pay for a fast connection then resell to the residents (or use it as a perk). Mine had close to 300 units, they could have made a killing by just slightly undercutting DSL/Cable internet fees.
      -nB

      --
      whois gawk date unzip strip find touch finger mount join nice man top fsck grep eject more yes exit umount sleep dump
    6. Re:Wow, I'm amazed... not. by Skarecrow77 · · Score: 2

      4700mbps = 587.5MBps
      10GB = 10240MB

      10240MB / 587.5MBps = 17.4s

      17.4 seconds a day. you could use that magical connection for seventeen seconds a day.

      sounds like the worst superpower on earth. can you imagine if the flash could run really fast for 17 seconds per day? superman could fly for seventeen seconds per day? it's like the megalixer you never use in a video game cause "what if i need it for the next fight?!"

  2. Modest? 100Mbit? by Camaro · · Score: 4, Funny

    It brings a tear to my eye to see the "modest" and "100Mbit" used in the same sentence. Yes, I realize that compared to 4700Mbit it is but I just got upgraded to 5Mbit so I still think you're insensitive clods!

    And yeah, I'm sure I could find a use for 4700Mbit.

  3. On reading the future by Max+Romantschuk · · Score: 2

    I have a 200Mbps connection at home, and for now it's fine for, well, everything. But it's really hard to tell what kind of speeds will be useful in the future. Let's imagine a virtual tailor service... Assume that you could go online, image yourself with a high res 3D webcam, and order custom clothes, complete with a virtual mirror to try them on. I'm guessing my 200Mbps connection would fall short at that point.

    This is the kind of chicken and egg problem we have with broadband right now. The next generation of online services can't be profitable because the infrastructure isn't there, and at the same time there is "no demand" for really high speed connections, since there are no services that need them.

    But at least one can stay positive and hope for cool sci-fi tech, right? ;)

    --
    .: Max Romantschuk :: http://max.romantschuk.fi/
    1. Re:On reading the future by Joce640k · · Score: 3, Informative

      His sig says "Finland".

      This doesn't surprise me. Most of the fastest speeds I ever see on torrents are Scandinavian countries. No, I don't know why that is, or how Nokia ended up making most of the world's telephones. Maybe they have an extra Telecommunications chromosome.

      --
      No sig today...
  4. I really couldn't care less about speed by i_ate_god · · Score: 2

    What's the point if all they are going to do is cap your usage.

    --
    I'm god, but it's a bit of a drag really...
    1. Re:I really couldn't care less about speed by SJHillman · · Score: 2

      "Well, we got our 2 minutes of browsing time today, but at least it was fast!"

  5. Re:40,960 Mbps has already been done. by azalin · · Score: 4, Funny

    Never underestimate the bandwidth of a truck full of backup tapes.

  6. Wait, what? by Kjella · · Score: 4, Interesting

    4700 Mbit/s = 4.7 Gbit/s, how's that a record? The Gathering here in Norway had a 200 Gbit/s Internet Connection, topping Dreamhack in Sweden's 120 Gbit/s. Maybe it's some silly 4.7 Gbit over cable, but that's like the wold's fastest subcompact. And for all of us that have fiber to the home, yeah we know it's just what equipment you put on both ends. The cable itself could probably pull 100 Gbit/s with the right equipment.

    --
    Live today, because you never know what tomorrow brings
  7. You can imagine where it goes from here... by StormDawg · · Score: 2

    He fixes the cable?

  8. Re:40,960 Mbps has already been done. by L4t3r4lu5 · · Score: 2

    I hear the latency is pretty high, though.

    --
    Finally had enough. Come see us over at https://soylentnews.org/
  9. Re:Sad trend by Kjella · · Score: 2

    Prices here in Norway:
    Uncapped 5 Mbps ADSL: Around $50
    Uncapped 60/60 fiber: Around $90

    Okay quite a bit more than you're paying but Norway is in general an extremely expensive country overall, an average full time salary is $75k so by our standards it's cheap. And I once downloaded a 500GB torrent, it really is uncapped. And this country has a population density of 13/km^2 as opposed to India with 368/km^2, delivering broadband there should be much much cheaper. I honestly wouldn't worry it seems mostly like a US problem, all of Europe is constantly upgrading. For example here's from an article I recently read on Britain:

    BT said that 7 million premises are now on its fibre network, and this year that number will grow to 10 million. The ultimate target is two-thirds of the UK by the end of 2014.

    Oh and they'll also triple top speed from 100 Mbps to 300 Mbps. Any new apartment block or any new housing field is wired with fiber and it's being retrofitted to a lot of old housing too. It's not a question of whether it's the future, but how long it'll take.

    --
    Live today, because you never know what tomorrow brings
  10. Re:40,960 Mbps has already been done. by Rainbowdash · · Score: 2, Interesting

    Yup, we Swedes will always be strong in the "internet scene." A friend of mine just got his 1GBPS connection :( And he pays half my price :

  11. Re:I'm so glad by networkBoy · · Score: 2, Informative

    I will tell you from my time working in a company that designed Ethernet PHYs and MACs, that most high end desktops and consumer gear can only maintain a 1Gpbs link, but can accommodate no where near that much BW. The best PCs can only sustain ~500Mbps throughput. Most on-board LAN and sub $100 PCIe LAN cards fall closer to 200Mbps. This is because they do not support DMA and are using Polled IO and the host OS for the LAN stack, much like the old winmodems did.
    -nB

    --
    whois gawk date unzip strip find touch finger mount join nice man top fsck grep eject more yes exit umount sleep dump
  12. Re:40,960 Mbps has already been done. by Catbeller · · Score: 3, Informative

    Translation: Since I will lose the argument vis-a-vis USA vs. The Way Everyone Else Provides Internet, I will shut down the conversation preemptively by spouting something meaningless yet somehow jingoistic. Good for you.

  13. Re:I'm so glad by networkBoy · · Score: 2

    PCIe x1 has the same throughput as PCI32/33, so you're going to see the same issues. I have TWO NICs in my system (three if you count the LOM).
    The PCIe x1 NIC gives me 500Mbps, the PCIe x4 one with TCP offload gives me 950Mbps on the same workload (server they are connected to has a TCP Offload NIC as well.
    The LOM NIC uses a single PCIe lane, so again it's slow.

    Sorry to disagree with you, but with a IEEE compliant 1518 byte frame on a normal NIC you're going to have crap performance. Yes you can use jumbo frames if your app supports it and you will see vast improvements, but a TCP offload engine on the NIC will do even better.
    -nB

    --
    whois gawk date unzip strip find touch finger mount join nice man top fsck grep eject more yes exit umount sleep dump
  14. Re:depressing .. by Catbeller · · Score: 5, Insightful

    Well, almost all of the things your listed were built by our grandparents. Since our grandparents didn't build fiber-to-the-house infrastructure, apparently it is not possible for us to even attempt to do so.

    And a lot of those things, such as roads, garbage service, water supply, rail, and power, were built by our governments using tax money - which is absolutely forbidden in today's climate of economic religious fundamentalism which demands that all infrastructure creation and related services must be done by entrepreneurs - who have shown they cannot do what the governments of our grandparents did for less than an infinitely growing multiple of what the grandparents paid. Governments build and maintain for the lowest possible cost for the maximum possible return, while our new privatization model demands lowest tolerable service levels for a maximum, and ever-growing per quarter, return on investment. We will never have fiber to the house - with the exception of the very wealthy, of course.

  15. Re:I'm so glad by Anonymous Coward · · Score: 2, Informative

    I will tell you from my time working in a company that designed Ethernet PHYs and MACs, that most high end desktops and consumer gear can only maintain a 1Gpbs link, but can accommodate no where near that much BW. The best PCs can only sustain ~500Mbps throughput. Most on-board LAN and sub $100 PCIe LAN cards fall closer to 200Mbps. This is because they do not support DMA and are using Polled IO and the host OS for the LAN stack, much like the old winmodems did.
    -nB

    I find your statement about lack of DMA and low throughput very hard to believe. I worked at Marvell Germany until September 2007 as a device driver developer and *all* of the then-current Marvell Gig chips (Yukon-II) *easily* managed 900+ MBits/sec, the Windows driver actually peaking at 980 megabits/sec. This was both for onboard controllers (e.g. Asus Mobos) as well as Ethernet cards, for all operating systems supported (Windows*, Linux, Mac OS X, FreeBSD, Solaris, Aix and HP/UX).
    Furthermore, *all* the drivers used DMA; only the Linux and Windows drivers offered the option of polled operation to *increase* throughput (no, not a typo, although it's counter-intuitive).
    Note, however, the above numbers apply to proper Ethernet speed testing, using an in-memory data generator for the transmit side and a corresponding receive program on the receive-side, avoiding any reads or writes to a disk. Otherwise you'd just be testing the disk read and write speeds, which was a common mistake made by testers, and could well account for your low cited speeds.
    Meaningful throughput tests may be performed by tools such as ttcp.

    --Gerald