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Comcast, Cox Slow BitTorrent Traffic All Day

narramissic writes "A study by the Max Planck Institute for Software Systems found that Comcast and Cox Communications are slowing BitTorrent traffic at all times of day, not just peak hours. Comcast was found to be interrupting at least 30% of BitTorrent upload attempts around the clock. At noon, Comcast was interfering with more than 80% of BitTorrent traffic, but it was also slowing more than 60% of BitTorrent traffic at other times, including midnight, 3 a.m. and 8 p.m. Eastern Time in the U.S., the time zone where Comcast is based. Cox was interfering with 100% of the BitTorrent traffic at 1 a.m., 4 a.m. and 5 a.m. Eastern Time. Comcast spokeswoman Sena Fitzmaurice downplayed the results saying, 'P-to-p traffic doesn't necessarily follow normal traffic flows.'"

21 of 342 comments (clear)

  1. W T F by n3v · · Score: 5, Insightful

    I'm paying for bandwidth, I should be able to use 100% of what I paid for. If their infrastructure can't handle it - maybe they should go back to selling tv.

    1. Re:W T F by Mr2001 · · Score: 4, Insightful

      You actually paid for "up to xxx Kbps" Then he should be able to use "up to xxx kbps" for whatever he wants, whether it's email, YouTube, FTP, or BitTorrent.

      We all understand that the figures quoted for these "unlimited" plans are maximums, and just because you're paying for up to 1 Mbps upstream doesn't mean there'll always be 1 Mbps upstream for you to use. But you should still be able to use whatever is available.

      And if the network is so overloaded that people are routinely unable to hit 1 Mbps, the ISP should either add more capacity or adjust their marketing to be more in line with the amount of bandwidth that actually is available.

      Times change, and people on average use more bandwidth now than they used to. In the future, they'll probably use even more. That means the oversubscription equation is changing, and it's going to keep changing. If an ISP wants to oversubscribe their capacity, that's fine, but they have to keep up with changes in usage patterns.
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  2. Well, yeah by entmike · · Score: 4, Insightful

    Comcast spokeswoman Sena Fitzmaurice downplayed the results saying, 'P-to-p traffic doesn't necessarily follow normal traffic flows.'"
    It would if they'd let it.
  3. You still suck. by khasim · · Score: 4, Insightful

    Comcast spokeswoman Sena Fitzmaurice downplayed the results saying, 'P-to-p traffic doesn't necessarily follow normal traffic flows.'
    Of course it doesn't. I can setup a download and let it run all night so I can have it in the morning.

    But that does not address you blocking any of the traffic.
  4. 'P-to-p traffic doesn't necessarily... by snowraver1 · · Score: 4, Insightful

    'P-to-p traffic doesn't necessarily follow normal traffic flows.'

    Nope it sure doesn't when you implement layer 4 filtering and then configure it to block/messwith/"delay" p2p apps. Who knew?

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  5. Re:Good by n3v · · Score: 5, Insightful

    Not all file sharing is thievery. What Comcast is doing IS highway robbery.

  6. Subverting Alternate Legal Distribtuion Schemes? by StaticEngine · · Score: 4, Insightful

    I don't really use BitTorrent much at all. Sure, I downloaded some HiDef video to test out content delivery over my home LAN from a server to my HDTV, but I don't scour the net for movies and music like I used to. I just don't have the time and interest.

    However, I did just grab the new Nine Inch Nails album, and as a former musician myself, I still dabble in remixing on occasion. Thus, when I went to go grab the freely available multitracks for remixing, I was somewhat surprised that they were only available via Torrent. That's smart on the part of Trent Reznor and his tech team (why bog down only his own servers with information that he's freely sharing with everyone?), it's bad for other artists and remixers if their access to this media is going to be limited because of the "taint" associated with BitTorrent.

    I'm not sure there's a solution here. Any distributed network will inevitably be used for some amount of "gray market" trafficking, but it would be nice if we preferred and promoted technologies for their Common Good usage rather than limiting them by their potential negative effects. And by "we" I mean the corporations who gouge us for $100 each month just to shuttle electrons around.

  7. Re:Good by AppleOSuX · · Score: 5, Insightful

    So just because there's a law against it, it's wrong?

    In this day and age when most of the middle class doesn't give a fuck enough to vote with their dollars or otherwise, we techies do what we have to. If that means enabling everybody to steal from the big corporations that have been ripping everybody off for years, then so be it. I encourage everyone that I know to do the same.

  8. WOW by azzuth · · Score: 5, Insightful

    World of Warcraft used torrents to patch the game when last i was playing. My ISP US Cable throttled the traffic severely and I always had to download the patch using other methods. There are many legitimate uses for torrents.

    Limiting bittorrent because it can be used for illegal downloads is like scrambling epsn because people make illegal bets on football games.

  9. Re:Good by Jherek+Carnelian · · Score: 5, Insightful

    Don't like, switch! All well and good, if monopoly weren't the case for so many users.
  10. Re:Good by Darkness404 · · Score: 5, Insightful

    For the most part GPL software is available without BitTorrent.

    That is correct, however BitTorrent is a much faster way to download it, when it is a new release of something popular such as Ubuntu, HTTP downloads are around 30KB/Second while torrents are around 200Kb/Second, therefore, there is little justification to not use BitTorrent when downloading large files, and when you figure that BitTorrent doesn't stress the servers of the project, it is a better choice in the long run too.

    So yes you are right, but that's the theory. Let's look at the facts. There is more illegal software than legal software. And I am sure it is clogging the networks of Comcast and other network providers.

    There is illegal software via HTTP and FTP too, in fact one might say that there is just as much via HTTP as via P2P. As for clogging the networks, the ISPs should have gotten more bandwidth before they offered higher speed Internet or at least have it in their advertising that they throttle P2P and certainly contracts. It would be like if I set up a huge pile of sand in my backyard, and I had people pay $40 per month to get as much sand as they wanted and it said so in the contract and through advertising. Of course some people only needed a bit of sand and took some home in buckets, others would take bigger ones. However, fearing that my sand would run out I poked holes in all of the larger buckets making them carry much less. People would have a right to be mad at me for promising unlimited sand and then limiting it. Same thing with the ISPs

    Don't like, switch!

    I don't know where you live, but here in the US there are about 3 main ISPs and most if not all have torrent throttling. Some of the more rural areas only have one way of getting high-speed internet and if you don't like that ISP it is either that or dial-up. And as for creating your own company, the grants the government/cities gave out to help get internet to the world, chances are won't be given again making it impossible to
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  11. Re:Good by Aranykai · · Score: 4, Insightful

    Oh please for the love of all that is holy, everyone stop using the "dont like it, switch" argument! Its common knowledge that the majority of US broadband users are only serviced by ONE company. Its simply not an option, and its getting old.

    As to your other arguments to the legality and saturation of networks, your viewpoint is quite backwards. The fact of the matter is, its a precedent being set, that they can sell you "always on high speed access to the internet", but then dictate what you can and cannot do with it. A phone company that listened in on your phone calls, and then disconnected you because your conversation with your girlfriend wasn't deemed as important as a business call being handled by your neighbor is an apt description of whats going on here. We pay for access to something, we don't expect them to determine what is important to us and why we are going to use it.

    If it boils down to a supply and demand issue, why doesn't it sort itself out the same way all other markets do? Do you see gas stations dictating where you can and cannot drive? No, they raise their prices and pass the cost of business to the customer. Its simple economics.

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  12. Re:Good by Fozzyuw · · Score: 4, Insightful

    And fuck your nitpicking - copying is stealing. Period.

    Wow, the Parent Poster is a thief! To access *any* website (including /.) you need to download a copy of the files on the slashdot servers. Opps, score one for holistic generalizations!

    Then again, the AC poster was obviously just trolling. No one is stupid enough to actually mean that.

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  13. Re:Good by Blakey+Rat · · Score: 3, Insightful

    First of all:

    When you take back something that was unfairly taken from you (i.e. high prices due to monopolies), that isn't ripping someone off. It's called justice.

    1) People use P2P to get free movies, music, and pirated software. None of this stuff was "taken from you." You have the option to buy it at many locations nationwide for reasonable prices. There's no monopoly on movies, music or software at the moment.

    2) Yes, you are ripping people off. We all agree the MPAA and RIAA exaggerate the damages, but it's also not a victimless crime, not by any stretch of the imagination.

    Illegal? Maybe, but don't forget a lot of laws were made only to benefit the rich and powerful.

    Then get off your lazy ass and change the law. The Civil Rights Movement didn't succeed because Martin Luthor King, Jr sat on his ass all day, then occasionally stole a candy bar from the corner store under the guise of "justice."

    If you think the law is wrong, change the law.

  14. Looking the other way... by copponex · · Score: 5, Insightful

    The real reason that Apple, Adobe, and Microsoft don't spend a great deal of time going after pirated software is because they would quickly lose market share. Even if software is cheap, it's never going to be cheap enough for a college student eating Ramen and saving money for beer on the weekends. He's going to nab a copy of whatever he wants to putz around with, and mostly use it complete school work and personal creative projects.

    If Adobe made it impossible for him to get an illegal copy of Photoshop, guess what? He'd learn something else. And when he arrives at his first job and they ask him which version of the Creative Suite he needs, he very well might say "That's alright - I know Gimp and Inkscape, and I already have them. Just get me a bigger monitor instead."

    It's a nightmare scenario, and one of those things I wish they (Microsoft/Adobe/Autodesk/Apple) would be more honest about. I hope they do lock down Windows with DRM so it is nearly hackproof and rejects the installation of pirated software, because Linux would gain a few million users overnight. In the end, the best thing the OSS movement has going for it is the greed of the big guys, so here's to hoping they only get more delirious with it.

  15. Re:Good by YrWrstNtmr · · Score: 3, Insightful

    Read your contract. Does it not say that they have the right to terminate you if you overuse the network?

    Who said they were overusing? One Linux distro via P2P per month is throttled the same as 24/7/365 pirated movie downloading.
    It appears they are throttling on the means, not the content or quantity.

  16. Re:Good by SanityInAnarchy · · Score: 3, Insightful

    You have the option to buy it at many locations nationwide for reasonable prices. I don't consider $20 for a DRM'd (and thus defective) movie, or $30 for an even more heavily DRM'd (but hi-def and shiny!) movie, to be a reasonable price.

    Now, rentals, I do consider to be reasonable prices -- but I'd much rather not have to actually go to the store. Netflix is a good idea, but their "watch now" service is heavily DRM'd.

    So tell me where else I can go, when I want to watch a movie right now, without going to a video store -- or maybe it's not even at the video store yet -- oh, and I want to watch it on Linux.

    The business model is just screaming for someone to implement it.

    There's no monopoly on movies, music or software at the moment. The majority of movies come from a shockingly small number of studios. The majority of music comes from a shockingly small number of labels.

    And there are certainly monopolies within software. Microsoft, anyone?

    We all agree the MPAA and RIAA exaggerate the damages, but it's also not a victimless crime, not by any stretch of the imagination. I used to feel bad about it, yes. Then they started suing 12-year-old children, grandmothers, and dead people for $100/song. Now I really don't care.

    I will go out of my way to pay for indie music, when I find a band I like. But with the things the MPAA and the RIAA does in response to piracy... Seriously, proposing a "piracy tax" on ISPs? If they already assume their customers are their enemies, then I really don't care.

    The Civil Rights Movement didn't succeed because Martin Luthor King, Jr sat on his ass all day, then occasionally stole a candy bar from the corner store under the guise of "justice." At the same time, Rosa Parks didn't wait for the law to change. Neither am I.
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  17. It will get worse. by zippthorne · · Score: 3, Insightful

    Because the bandwidth you think you're paying for costs a lot more than you're actually paying right now.

    What you're actually paying for is a kind of time-share bandwidth thing. Based on a profile of an average user who wants spurts of high speed (to make web pages responsive) but doesn't actually need that data rate anywhere near 100% of the time.

    This is generally a good deal all around, because by selling it this way, the ISPs ensure good utilization of the equipment, and you get fast web pages. And that connection is on 24/7.

    If your use profile doesn't conform to that estimate, for instance, if you're actually using a fairly constant bandwidth, then you need to upgrade your service to a plan that figures that in. Prices for those plans are sure to come down soon, as the capacity is built in to satisfy the upcoming demand for internet-tv.

    It is unfortunate that the ad campaigns didn't specify this explicitly at the outset (although they're getting better). But I think it was in the name of brevity rather than malice. And also some malice, but at least at some point someone probably figured that many people either weren't bright enough or didn't have enough time to fully absorb the details, so they oversimplified them. I don't think that assumption is wrong, btw.

    Haven't you ever wondered why a T1 line, which ostensibly has lower data rate than your plan by a factor of between 3 and 5 in most of the country, costs so very much more? That's because they don't expect you to use that data rate anywhere near all the time.

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    1. Re:It will get worse. by Mr2001 · · Score: 5, Insightful

      What you're actually paying for is a kind of time-share bandwidth thing. Based on a profile of an average user who wants spurts of high speed (to make web pages responsive) but doesn't actually need that data rate anywhere near 100% of the time.
      [...]
      If your use profile doesn't conform to that estimate, for instance, if you're actually using a fairly constant bandwidth, then you need to upgrade your service to a plan that figures that in. Close, but not quite.

      Consider what it actually means to have a "profile of an average user". The ISP knew from the start that some people would use their bandwidth in short bursts (e.g. web surfing). Others would use it in other ways, like watching YouTube or Netflix for hours at a time, or listening to internet radio. Some people would use it for P2P or gaming.

      The "average user" profile comes from combining all those different user profiles together. Many people will use 1% of their available bandwidth, say, and a few will use 90%, and when you average them together according to how common you think those profiles will be, you decide that the average user will only use maybe 5% of the bandwidth they're paying for.

      But everyone still fits into the picture. If you're the guy using 90% of your available bandwidth, that's fine, because the ISP already took you into account when they decided how much capacity to build. You're not obligated to hold back or switch to a different service: they knew there would be some number of people using a lot of bandwidth, who'd be balanced out by a much greater number of people using only a little.

      Now, as time goes by, higher bandwidth applications like BitTorrent are getting more popular. That means the ISPs have to adapt, because their old estimates are no longer accurate. Instead of the "average user" using 5% of the bandwidth he's paying for, maybe now the average is 10%, so the ISP has to have twice as much capacity.

      That's the risk of oversubscription: it only works as long as your estimate is accurate, and when actual use changes, you have to update your estimate and adjust your capacity. Again, they knew they were taking that risk when they chose to oversubscribe their lines.

      Some ISPs want to have it both ways, though. They want to keep their oversubscription model, but they don't want to adjust their capacity to keep up with changing usage patterns, so instead they try to force their customers to comply with the old, outdated estimates. We shouldn't let them get away with it.
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    2. Re:It will get worse. by Mr2001 · · Score: 4, Insightful

      If the ISPs are going to conform to your plan of "building out to match the demand," that involves a capital cost which they will have to recoup through increased pricing. Yes, of course it does. The ISPs should've been planning for that all along, since it isn't really a surprise that people use more bandwidth now than they used to. And I think they have been planning for it: Comcast has raised the cap a few times over the past few years, without raising their monthly rates, so presumably some of that monthly charge already goes to building more capacity.

      But if demand is rising faster than they expected, and they have to raise their rates to maintain their network, then so be it!

      "Eating the loss" only goes so far before the company goes out of business and is replaced by a company that charges what their product is worth. You're asking for everyone else to subsidize YOUR usage ya filthy hippie. Huh? You must be thinking of someone else. I haven't asked for anyone to "eat the loss" or subsidize anything.

      Oh, and BTW, some of us knew what we were getting when we subscribed to our service like.. a decade ago. We knew we were paying for shared service, but we bought it anyway because it met our needs Yup. I think that describes all of us here.

      I certainly know that I'm paying for shared service, and that the bandwidth they advertise might not always be available -- I don't call to complain about slow downloads or uploads, because I know they'll say "we don't guarantee anything" and they'll be right. But when that bandwidth is available, I expect to be able to use it.
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  18. one more thing by Mr2001 · · Score: 3, Insightful
    By the way...

    There are only a few options here for the ISPs. One is to build out as you say and charge everyone. Another is to build out some more and charge most people the same, but make the limits more explicit. Nudging the higher bandwidth consumers into higher price brackets. [...] IOW, it's either increased pricing for some who actually use the bandwidth or increased pricing for everyone. ... you missed the third option: keep the same price and network capacity, but lower the rate caps.

    That is, let's say the ISP has 100 Mbps available, and they're providing "unlimited" service capped at 5 Mbps to 400 customers, under their old estimate that an average customer would use 5% of their available bandwidth.

    Now BitTorrent comes along, and soon the average customer is using 10% of their available bandwidth. Instead of doubling their network capacity to 200 Mbps, the ISP can halve the per-user cap to 2.5 Mbps, keeping overall usage the same without spending a dime or raising their rates.

    (Well, it isn't quite that simple, since in reality everyone hasn't increased their usage equally, so the lowered cap wouldn't affect them all equally. But there is some number where the ISP could set the cap to keep usage under control without having to add capacity or raise prices.)

    Of course, ISPs don't want to do this. They want to keep advertising big numbers. But the fact is, people use more bandwidth than they used to, and that demand isn't doing away, so something has to change: the ISPs need to either add capacity and/or raise their prices, or stop advertising service levels they can't provide at the current prices.
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