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ISPs Experiment With Broadband Download Capping

W33dz writes "News.com has an article detailing how some ISPs are now capping bandwidth usage by some of their high end users. Comcast claims this is an attempt to create better speeds for their average users, but you can't help but wonder how much of this is in response to the RIAA's subpoenas. Interestingly enough, there is no set limit, but just a subjective limit of 'more than the average user.' The World Tech Tribune has an article on the same topic."

34 of 804 comments (clear)

  1. More than the average user?!? by ThePlague · · Score: 2, Interesting

    If they stick to this, then the cap will, by necessity, spiral down.

    Consider, if the current average is M, and people using more than M are capped at M, then the average will decrease to M'. Now, the former average is more than the new average, and presumably would initiate a new round of caps at the value M'. Lather, rinse, repeat.

  2. Download caps hurt Linux! by 11223 · · Score: 0, Interesting
    Download capping might cut off some of the abusers of the service, but it hurts one very real and legitimate use of the service: downloading Linux ISOs! Under the guise of "illegal music downloading", the ISPs can shut off Microsoft's worst enemy: the free spread of Linux.

    Complain and protest about this action, and suggest that broadband ISPs consider mirroring some of the more popular Linux downloads within their networks (Speakeasy DSL already does this). Of course, Comcast will have no interest in this, but they're already in Microsoft's back pocket anyway...

  3. This is BS by grey3 · · Score: 4, Interesting

    When I pay my monthly internet bill, I'm not paying for an average download speed, I'm paying for a MAXIMUM download speed. Is it legal for them to change the contract for the amount of bandwidth I can use at any time?

  4. Re:I wouldn't set the limit by Frymaster · · Score: 2, Interesting
    I would normalize the distrobution periodically and set the cap at the higher 10% level.

    the solution to that of course is to get everybody using more bandwidth. hm. i see a generation of viruses coming...

  5. Traffic shaping? by VAXGeek · · Score: 4, Interesting

    Why don't they just shape the traffic to their needs? I'm sure there has got to be some way to do this at an application level. Couldn't they just assign lower priorities to p2p traffic? It's not like bandwidth is some tangible asset that we are USING up every day. Just have us capped to under their bandwidth needs.

    --
    this sig limit is too small to put anything good h
  6. Broadband is already pretty cheap... by John3 · · Score: 4, Interesting

    ...for residential users. Business users basically already subsidize the home market. The telcos and cable companies probably didn't forsee the impact of P2P when they promised "unlimited" bandwidth, assuming web browsers, email, and the occasional Quake server connected at home. P2P takes off and suddenly they need to back off on their promises a bit, but don't expect them to drop the price lower as they are already losing money on home broadband.

    --
    "We make our world significant by the courage of our questions and by the depth of our answers." Carl Sagan
  7. Stupid question but... by CGP314 · · Score: 2, Interesting

    I don't understand where the bandwidth costs are coming from for an ISP. The cables have been laid down right? How does it cost the ISP more to run them at max?

  8. Another bandwidth hog... by gpinzone · · Score: 2, Interesting

    Online games. Cable companies scrutinize the upload much more than the download. Try plaing games online for a few hours a day and the cable company may not be too pleased. I've heard of people getting capped simply by hooking up their XBOX and playing online.

  9. Terrific way to ban your enemies by kennykb · · Score: 2, Interesting
    My, am I glad that my ISP doesn't do this.

    Since I'm flushing about 200MB/day, more or less, of copies of the Swen virus, it's obvious to me that it would be possible to get your enemies' bandwidth capped (or even get their service terminated) simply by mounting a DDoS attack that mailbombs them.

    Turkeys.

  10. Cancel your service by Blackknight · · Score: 2, Interesting

    If my ISP even tries to put a montly limit on me, I'm cancelling the cable. I paid for "unlimited" access, so that means UNLIMITED.

    1. Re:Cancel your service by Anonymous Coward · · Score: 1, Interesting

      Unfortunately the quasi-legal 'out' that the ISPs have been using as an arguement against the term 'unlimited' is to state that 'unlimited' means 'access' (as in 24/7) not bandwidth.

  11. Not much to fear... If you have competition. by rogueMonkey · · Score: 3, Interesting

    In my area I have access to both DSL and Cable. Both were uncapped, both got capped, and now, guess what? They are starting to uncap!

    Ma Bell found out people would switch over to them if they actually offered uncapped service. Most people won't even download near the cap they had set up anyway. Users who actually do bust the cap are usually a little more at ease with computers... Which means that when their low-tech friends ask which service to subscribe to, they'll suggest the uncapped one *they* are using.

    Anyway, I think the capping will eventually go away if there is competition. Pray you have competition in your area!

  12. Re:Throttle it. by swb · · Score: 2, Interesting

    Home broadband is dirt cheap for what you get. It's subsidized by business accounts much like telephone service.

    Is it? Do you have any documentation to show what the monthly actual cost of DSL is to the telephone company?

    My ISP gets no subsidies for the IP portion of my DSL bill (about $34 per month), and the subsidies associated with my voice line presumably cover all the maintenance associated with the copper loop to my house, so they must be doing *something* with the $34 per month they get for supplying DSL transit.

    Anyway, I don't buy it that broadband is subsidized. It may be priced relative to the oversubscription ISPs do (since many broadband connections are near zero much of the time), but that's not a subsidy.

  13. what happens when the average goes down? by ostrich2 · · Score: 2, Interesting

    I can't stand seeing this type of measurements. It seems to me that half your users could be using more than the average. Hell, almost all your users could actually be using more than the average.

    So the solution is to charge people who download more than the average? Guess what? That will force the average down. Now you get to charge even more people for using "more than the average." Is this supposed to continue until everyone has service, but no one uses it?

  14. Re:old news, Comcast is really sucky lately. by BrynM · · Score: 3, Interesting
    Let's take their methods out a few generations. Right now, they are threatening or terminating their top 1% of "bandwidth abusers". Let's assume that these folks consumed 50GB a month in bandwidth. Now that those people are "fixed", the top 1% becomes the folks who consume 45GB. They can go throught the same process next quarter/billing cycle/year. If they keep eliminating the top 1%, then the threshold is constantly getting lower for the other 99% before they get their "warning". If left unchecked, the top 1% could very well end up being someone who has less than modem usage.

    Regardless, they now not only have the reputation of being a capped service, but they have become the most unreasonable and vague capped service. Way to fight a PR war guys! Comcast/ATT (they keep passing the broadband and cable properties like a hot potato) have had a captive customer base for so long that they have really lost touch with how to keep those customers, let alone build any customer loyalty. I hope you dump them if you can.

    I'm lucky, my DSL ISP lets me host servers, have a static IP and give them a call to say "Hi" for fairly cheap. Before you ask, Omsoft.

    --
    US Democracy:The best person for the job (among These pre-selected choices...)
  15. Re:Why is it always a devious plot? by crazyphilman · · Score: 4, Interesting

    Too true. What I found interesting was that the people used as examples of the target of the caps were downloading the equivalent of 90 movies per month. Earlier in the article, they say two movies take up 2GB. So, assuming one GB per movie, that means the people targeted by the ISPs were using over 90GB per month. 90GB!!!

    Perhaps the people who are complaining about this could take a deep breath, drink some soothing tea, and realize that that's a whole lot of downloading. Most of us don't even use 5GB, much less 90GB (90GB!!!). And, when you think about it, during normal web browsing, I doubt you use more than a couple hundred meg a month, total.

    At first, I saw the article, and I was like, "bandwith caps? Oh no!" Then I read it and realized they're talking about capping up in the couple-dozen-gigabyte range. For the life of me, I can't see what the big deal is. You know? It's not like it's going to affect very many people...

    --
    Farewell! It's been a fine buncha years!
  16. I have comcast, and download a considerable qty by *weasel · · Score: 3, Interesting

    ... and I have not received any such letter.

    So i've got to wonder, if the ~8gb/mo of traffic that i've been going through is ok - how much are these guys using that they're getting capped?

    I mean, sure, it isn't right for comcast to cap without publicizing a formal cap - but these guys aren't saying what their usage is either.

    Perhaps because we know what the price of bandwidth is, and would feel a little differently if we knew just how far on the fringe their usage was.

    (i grab data regularly from for backup to my home network, as well as having a video game demo and mod habit. while i have a considerable quantity of music on my harddrive, it is all ogg rips done myself from CDs I own.
    so snuff your flames and stay on-topic.)

    --
    // "Can't clowns and pirates just -try- to get along?"
  17. Quit refering to Cable Modem services as ISPs by MerlynEmrys67 · · Score: 2, Interesting
    Based on their Terms of Services, they are at best web service providers (ok they provide e-mail service as well --- sorta). Any service that doesn't let me use the INTERNET to do useful things like post information - connect to and have connected any port I want is not an Internet Service Provider.

    I expect my ISP to allow me to open ports to allow useful services to come through (25, 22, 23, 80, 53, etc). Without the ability for me to have these services running an WSP is of little use to me. Thank God there is DSL to compete with Cable Modems so I can still get an ISP that is worth something

    --
    I have mod points and I am not afraid to use them
  18. ISP's need every ISP to do this or it will fail by Rushmore · · Score: 3, Interesting

    Canada's largest ISP implemented bandwidth caps while the competitors didn't. Several months later the caps were removed because customers fled to the competitor.

    Any ISP would need everyone in their competing market to agree to introduce bandwidth caps or it will fail. That's good for the consumer but bad for the ISPs.

  19. Been "victim" of this for years. by JFMulder · · Score: 3, Interesting

    Since day one about 6 years ago when I subscribed to the local cable Internet connection in Montreal, Canada, I've been subject to download caps. It started off with 6 gigs of download and 1 gig of upload a month. Downloads were 300k/sec max and uploads were capped at 15k/sec. Over the years, the service has IMPROVED (well, competition helped a lot for that to happen) and now I have 450k/sec in download and 50k/sec in upload, plus I get 15 gigs in download and 5 gigs in upload. Now, I wonder what legal uses people are making of 15 gigs a month.

    Personnally, the only times I was able to download over 3 gigs in a month is when I decided to download all the Alias episodes so I could start watching the show on ABC this season. I did the same in the past with 24, Smallville and That 70's Show.

    Otherwise, I mostly watch trailers on Apple.com and video trailers off Gamespot or Xbox.com, read the news and do instant messenging. That typically sums up to about 2 gigs of usage in download. And I use the Internet often. So, what can you people legally do with 13 others gigs of download? Yeah, I know, Linux distributions are 2 gigs now and VNC is pretty bandwidth intensive, but I bet more than 99% of broadband users don't give a flying squirrel about VNC or Linux and thus have no LEGAL use of 15 gigs a month. With only maybe the exception of multiplayer games, are there really any reasons to have 15 gigs a month in download?

    Of course, if you're into heavy music, movie and software piracy, I'm sure that 15 gigs a month is not enough for you. Especially since the only people I hear complaining about download and upload caps are the ones who are using their connection for illegal activities. Me, I complain only when I have to wait another month to download the last 3 Alias episodes. But it's over now, and I'm back to my normal Internet usage.

    So, is capping really THAT bad?

  20. Wow a cap on bandwidth! This is news! by Zakabog · · Score: 2, Interesting

    Road runner did a cap a LONG time ago. I used to have as much bandwidth as my computer could use (downstream, up was like 25-30K/sec.) I downloaded redhat ISOs in 40 minutes for each one (700 megs from ftp.cdrom.com) think it was like 600K/sec. Now I'll be lucky if I can get 250K/sec. But as they were capping the downstream they were increasing the upstream so I considered it a fair trade off. I get around 45-50K/sec now which make a big difference when you're hosting a game. I liked having 600K/sec but 250 is just as nice, and uploading to people at twice the speed is worth it.

  21. Alternative to caps... by djtack · · Score: 3, Interesting
    Instead of fixed caps, why not implement some sort of traffic-shaping based on past usage?

    I help administer a mid-size linux cluster, and we use PBS Pro to handle job scheduling. In many ways, allocating cluster resources is similar to bandwith:
    • The resource in finite, and expensive
    • It needs to be shared fairly between a lot of users
    • It's a "perishable" commodity. A lot of proponents of metered bandwith compare it to other utilities, like water, power, etc; however unused bandwidth (like CPU cycles) cannot be stored for later use. It helps nobody to restrict usage when there is extra to spare. Contrast this to other metered utilities, where the surplus water, coal, gas, etc can be saved and used another day.

    The scheduling algorithm we use on the cluster is called "fair share". I think it would also work to share bandwith, and it works like this:

    Usage is tracked with an exponential half-life of 24 hours. For example, someone who used 20 cpu-hours today and 20 hours two days ago would have a total usage 20 * 2**0 + 20*2**-2 = 25 hours. A user's priority in the queue is based on their past usage, and optionally their number of shares (users can be given an unequal number of shares, if desired).

    To apply this to bandwith, you could track the bandwith usage the same way. During peak usage times, when the lines are congested, a traffic-shaping router would give a lower priority to packets from the "bandwidth hogs".

    It seems to me that customers and ISPs would both benefit from a scheme like this. I'm not exactly a networking guru, so I'd be interested in what other people think about it. Is there hardware out there that has this capability? Could it be done with Linux's iptables?
  22. Welcome to New Zealand's High speed Internet world by Dodger-NZL · · Score: 2, Interesting

    Just remember things could be worse,
    Look what we have here:

    Paradise High Speed Starter*

    * $59.95 per month + $17 per month for your Cable Modem rental
    * 256kbps downstream / 128kbps upstream
    * 10GB of international monthly traffic
    * 20c per additional international MB
    * 2c per additional national MB
    * up to 6 email addresses
    * access to paradise.net's helpdesk support, 24 hours, 7 days a week

    Paradise High Speed Express*

    * $92.95 per month + $17 per month for your Cable Modem rental
    * 2Mbps downstream/256kbps upstream
    * 1GB of international monthly traffic
    * 20c per international MB
    * 2c per national MB
    * up to 6 email addresses
    * access to paradise.net's helpdesk support, 24 hours, 7 days a week.

  23. Wouldn't mind if they did 3 things to make it fair by Krellan · · Score: 4, Interesting

    I wouldn't mind seeing bandwidth capping on my line if they did 3 things to make it fair.

    1) Use the "toilet tank" method of capping people, instead of completely cutting them off entirely. This method has been deployed in several places, and people of course don't like it, but it is the fairest system that has been devised so far. Unlimited downloading (or uploading) is allowed, up to a point. When that point is reached, downloading will continue, but at a dramatically lower speed. The download will not be interrupted, but it will be capped to that lower speed. If the customer stops downloading for a period of time, they will re-earn the right to download at a higher speed, as their toilet tank slowly refills over time. This system also doesn't require strict time intervals (such as 24 hours, 1 month, etc.), because it is both triggered and released by the user's behaviour. If the user voluntarily downloads at a speed slower than the top speed, they can stretch out the length of time during which they can enjoy a noncapped connection. This is a good system because it has its intended effect (keeping high-volume users from abusing the service for everybody else) while not punishing people by cutting them off entirely or charging them a huge bill (important for cases in which the user isn't to blame for the high bandwidth usage, such as a virus or a Slashdotting). Also note that uploads and downloads are treated separately and independently, with a different toilet tank for each.

    2) Make it clear what the cap level is, for both upload and download, including both the capped speed and the "toilet tank" size. Include this both in customer contracts and advertisements to non-customers. Advertising a connection as "unlimited" is false, when it could be capped! An example of an acceptable service description that could be advertised would be "1.5mbps download (capped 1GB/64kbps) and 256kbps upload (capped 128KB/64kbps)". This refers to a system that would have a toilet tank size of 1GB for downloads, after which the download speed would be reduced to a mere 64kbps. At this speed, it would take roughly 36 hours to refill the toilet tank once drained, but the user could still use their connection during this time (they just wouldn't be able to download another full 1GB without hitting the cap again). There's another similar toilet tank for uploads.

    3) Provide tools for the user to monitor their current bandwidth usage, and how it applies against the cap. At the minimum, this should include both a live program that can be installed on the user's computer, and a webpage that can be visited occasionally should the user not wish to keep an extra program running. I would set that webpage as my homepage! The program would display the user's current usage and the threshholds at which capping would occur, and the current fill level of the "toilet tank". It should be made absolutely clear to the user what is going on, and how their current behaviour affects their cap, so there will be no guessing or finger-pointing.

    I currently use DSL, not cable, because my connections are largely two-way. I do just as much uploading as downloading (no P2P, just old fashioned stuff like web servers), and cable companies are hostile towards uploaders and servers. The reason I use DSL is because so far my ISP (SBC) has not instituted any unfair caps! If they were to cap the line in an unfair way, I would be screwed, because I can't switch to cable. A friend of mine eats the cost of having a full T1 to his house. Maybe I'd have to do the same?

  24. Reminds me of that Monty Python skit... by Esion+Modnar · · Score: 4, Interesting
    you know, the one where the Insurance Guy denies his client's claim, on the basis that in his policy, it says that his company does not have to pay-- for anything.

    And furthermore, he blames the client, since if he never made a claim, this would not be a problem.

    Why does this remind me of the skit? Because the broadband providers are saying you can't use all the bandwidth they're selling. If you sell me a pipe to the internet, and call it unlimited, then unlimited means, goddammit, unlimited. Don't blame me if I start using it for all the stuff that broadband is good for. After all, that's why I'm paying you guys $50-60/month.

    Don't sell us broadband expecting us to use it like dial-up. We won't.

    --

    They say the first thing to go is your penis. Well, it's either that or your brain. I forget which...
  25. DSLAM aren't cheap by BreadMan · · Score: 2, Interesting

    The phone company has to pay for the DSLAM on the other side of the loop to split out the data part of the signal and wrap it into a ATM circuit. Think of this as an additional line card the phone company must buy/finance/install/fix/power/administer. When I was working with these things, they cost a ~$500 a line to buy, and a small DSLAM would service 64 lines. But that few hundred per line would be much more if the phone company did not sell all the space on the DSLAM. I'm not sure about the additonal equipment for the uplink to the phone company's network.

  26. Re:You must be joking? by poot_rootbeer · · Score: 1, Interesting

    What you call "broadband" I call a poor quality, overpriced, asymmetric leecher link.

    I call it "I can download from the Internet at the same rate as a full T1 for 1/4 of the monthly cost". YMMV.

    Fiber to the curb should be here, and it should be cheap.

    So buy a spool of fiber and a backhoe and start your own telecoms company.

    What's with the childish sense of entitlement you're expressing?

  27. Re: broadband cheap for what you get? by King_TJ · · Score: 3, Interesting

    I think the above statement depends LARGELY on how you define "what you get".

    I find it interesting that the cable companies have no problem feeding you nearly 100 channels of television, 24 hours a day, 7 days a week (remember, that's bandwidth too - voice and full screen video), for, say, $50 a month -- yet when it's *Internet* bandwidth people want, suddenly we're supposed to respect all these artifically set limits/caps, and understand what a "great value" we're getting for that additional $49.95 per month.

    True, home users' Internet broadband is currently subsidized by businesses - but that's only because they've got the current rates jacked up so high for T1 and T3 connections. There's no real, concrete reason I can see why a T1 should cost a business many hundreds of dollars per month. They've simply created artifical "costs" for connections, and tried to justify them by claiming they "help offset" expenses giving home users service.

    DSL runs over existing copper, and shouldn't really present a telco with any additional overhead - other than maintaining the routers and the customer support/billing aspects of it.

  28. Re:Throttle it. by shepd · · Score: 5, Interesting

    >P2P is not about the music industry failing to provide.

    It is, though. They have failed to provide a popular product (while I like emusic, rarely is there a lot of current top ten hits availible) in a format people like (iTunes DRM + AAC Mac only? Blech).

    They have also failed to provide it at a reasonable price. According to the RIAA, when CDs were first made, they justified the price divide between CDs and casettes as an extra cost to produce CDs. According to them this almost doubled the cost of the product, from $8.99 to $17.99.

    Therefore, considering a decent casette costs $2.00, the cost of a digital music download, which incurrs only a minor ($0.01) penalty for transfer should be $6.99 or less per album.

    It isn't.

    Also, with the lack of physical art a digital download has, and the reduced quality, another rebate should be made for the consumer. I propose $1.99. The price for an album online should therefore be $5.

    But wait, media companies want to further denigrate their online music by introducing DRM and proprietary formats. I believe an album that cannot be resold should sell for half price, like most AS-IS sales on working items. The price for an online album is now $2.50.

    Media companies have failed to bring to market goods that are cost representative.

    P2P is all about trying to rationalize costs. While free is far less than consumers are willing to pay, it isn't free. The cost to the user is working for various marketing departments. A value which I say equals the proper cost of a legally downloaded album, $2.50.

    Heavy piracy is always an indication of failed market attempts.

    --
    If you could be told what you can see or read, then it follows that you could be told what to say or think - BoC
  29. Serious question by Glonoinha · · Score: 4, Interesting

    I read this entire thread and now have a question.
    Here is a serious question to all the nay-sayers :
    Assuming that the top 1% of users is using 50% of the bandwidth, and by eliminating that top 1% of users from the customer base the other 99% would get their bandwidth doubled and their pings halved - would you agree when Comcast's business solution?

    If you were part of the 1% that kept the cablemodem pegged wide open 24x7, moving more than 300 Gigabytes per month (that is 10 Gigs each and every day without letting up) then you get sliced off the network, but anybody short of that gets their pipe doubled ... would you go for it? Your P2P stuff would go twice as fast, and your web pages would load twice as fast (and your gamer pings would halve, in theory, for this quesiton.)

    Just curious.

    --
    Glonoinha the MebiByte Slayer
    1. Re:Serious question by nmos · · Score: 2, Interesting

      Assuming that the top 1% of users is using 50% of the bandwidth, and by eliminating that top 1% of users from the customer base the other 99% would get their bandwidth doubled and their pings halved - would you agree when Comcast's business solution?

      No but if they actually published the cap and provided a way to pay for additional bandwidth if more was needed then that would be fine. In order to make an informed decision a customer needs to know what the ISP is actually offering. The idea of having a mystry cap that potentially kicks in whenever a sysadmin is having a bad hair day is good for anyone.

  30. Differential Pricing of one company? by SmilingBoy · · Score: 2, Interesting
    This thread seems very US-centric so far.

    It seems strange to me that US providers do not offer differential pricing.

    Let me give you an example from Germany:

    If you want to have ADSL, you have to pay a fee of ~EUR 20 to the phone company, Deutsche Telekom (That's for DSLAM & bandwidth, 768/128, etc).

    In addition to that, you choose an ISP for your traffic. And there is a lot of choice. One of many providers, 1&1, offers no less than 7 home user tariffs:

    20h time tariff, EUR7

    40h time tariff, EUR10

    100h time tariff, EUR15

    1GB volume tariff, EUR7

    2GB volume tariff, EUR10

    5GB volume tariff, EUR15

    "Flat Rate", EUR40 for unlimited use, but in every month you use less than 20GB, you only pay EUR27, and if you are also less than 100h online, you only pay EUR17

    (minutes or MB above your limit cost 1.2 Cent each)

    Or an example from Belgium: ADSL is EUR40 here for 3300/128 and 10 GB per month with the largest provider (there are many others). If you want more than 10GB, you can always buy one or more extra 5GB for EUR5 each. Interestingly, if you go above your limit (and you don't purchase extra 5GB packages), you are not charged more but your bandwidth is capped to 64kbps. You can also increase your upstream somewhat if you pay a bit more

    I don't understand why the providers in the US don't offer pricing like this. I believe they could achieve much higher profits by such price discrimination as well as making more consumers take up broadband - after all, they are monopolists as it seems to me!

  31. Re:Throttle it. by nmos · · Score: 2, Interesting

    Lose the tinfoil hat, Sparky. Home broadband is dirt cheap for what you get.

    Agreed. I'm actually surprised that the smaller ISPs (those that arn't part of a telco and have to purchace their own Tx or OCx links) even stay in business serving dsl customers.

    It's subsidized by business accounts much like telephone service.

    Do you have ANY evidence for this part or you post? Unlike residential phone service residential DSL and Cable broadband are NOT services that the telcos are required to provide so why whould they bother if they wern't making a profit?

    Personally I'd rather them use bandwidth throttling for P2P apps rather than dictating a certain amount of usage over the course of a month.

    Well, I'd much rather them leave my connection un-throttled and simply charge $/bit just like water, electricity etc. If I want a particular app throttled I'll do it my self thanks. If they want to use a model where I pay 39.95 for 10GB and 49.95 for 40GB with a charge of $1/GB for going over or something similar that would be fine. What's not fine is having some sort of secret cap so noone can know what is expected of them. Comcast really should look at Direcways FAP and learn from it. Direcway used to have a mistry cap that would throttle your bandwidth down to around 56k if you exceeded a certain amount of usage and would lift the cap if you didn't use the service for a while. This pissed off lots of people because noone could tell you how much was too much and enforcement seemed to vary quite a bit from customer to customer. They still have a similar policy but at least now they publish their policy so a savy user can tell if they are likely to have a problem.

  32. Fundamental difference between DSL & T1/T3 by Starrider · · Score: 2, Interesting

    You really miss the point here, and it's quite obvious you never worked in telecommunications.

    For starters, a T1/T3 connection is full duplex. That requires a higher strength of signal on your end plus additional error correction. The equipment required on each end is more expensive than cable/DSL.

    With DSL/High Speed Cable, you get no bandwith guarantees. You get a max speed, and if it bogs down, you just have to live with it because there is no guarantee of Quality of Service (QoS). That is the main reason DSL/High speed cable is sooo much cheaper than a dedicated T1/T3.

    When you purchase/lease a T1/T3, your contract specifies minimum QoS. A minimum guaranteed bandwith, and if that bandwith drops below that amount X times in the month (X is determined by the contract), you get a refund.

    For this reason, dedicated T1/T3 lines require a significant amount of extra monitoring and maintenence to ensure the company doesn't lose out due to bad QoS. I used to work in the control center of WorldCom in Tulsa, and part of my job was to monitor T3 circuits.

    That monitoring costs money (my salary, monitoring equipment, software) and that is part of the cost of the cost of the T1/T3.

    Your DSL/Cable connection at its peak might very well be faster than a T1, but you have no guarantees that bandwith will stay that way.

    Yes, DSL runs over existing copper, BUT you must be within a certain distance of the Central Office, or your connection speeds plummet. (That distance is getting bigger with new technologies, but it is still a limiting factor.)

    Fiber over the local loop is just not a possibility. There are just too many local loops and no real incentive for anyone to lay all that expensive fiber (expensive meaning way more than free lines already in the ground).

    After the telco bust, do you really think companies want to lay all that fiber to replace millions of local loops? There are still places in rural oklkahoma with old tar paper covered copper lines in the ground. When it rains hard, their phone service is horrible (if working at all.)

    Next time know what you are talking about before posting.