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Comcast Raises Bandwidth in Shot at DSL

bigtallmofo writes "In a move sure to be applauded by DDoS botnet owners everywhere, news.com.com is reporting that Comcast is raising the speed of its cable Internet offerings. The standard rate will change from 3 Mbps downstream and 256 Kbps upstream to 4 Mbps downstream and 384 Kbps upstream. Customers that currently pay extra for faster service will see a 50% speed increase over what they have today to 6 Mbps downstream and 768 Kbps upstream." Combine this move with the VoIP announcement and the rumblings about more Baby Bell mergers -- we should see an...interesting landscape soon.

72 of 422 comments (clear)

  1. Can we run servers yet? by Skidge · · Score: 5, Interesting

    As it has hiked speeds, Comcast has been giving customers more to do with that bandwidth. Its Comcast.net home page has become more of a media portal, with emphasis on higher-bandwidth services such as video news clips, on-demand video games, a flashier interface and more personalization tools.

    That's all well and good, but will they let us do something actually useful with our service like run a web server? Not that I'm trying to run a big website out of my home, but I'd rather to be officially allowed to run my own photo gallery on my linux box for my family rather than have "a flashier interface," whatever that means.

    1. Re:Can we run servers yet? by Skidge · · Score: 2, Informative

      True, my port 80 can be accessed without a problem and I do run a small webserver from my basement, but I'd still like it to not be against the ToS to do so.

    2. Re:Can we run servers yet? by Anonymous Coward · · Score: 2, Insightful

      Abusing? This is EXACTLY why I never want to go with a cable provider or a telecom.

      I PAID for a given amount of bandwidth. How can it reasonably be considered abuse for me to use what I paid for.

      If the cable companies are only providing their stated bandwidth "provided you don't use all that power more than XXX hours per day," well, then you aren't ACTUALLY getting what they're advertising themselves as providing, now are you?

      It may be true that cable companies can't actually support all the bandwidth they sell--someone using their service continually might well affect others neaby negatively. I submit, however, that unless TOS prohibit this, then your beef is with the cable company not being able to deliver what you're paying for. Not someone "abusing" the service.

    3. Re:Can we run servers yet? by CptNerd · · Score: 3, Interesting


      Comcast and other cable/DSL providers will never allow servers of any kind, so long as they can't negotiate the kind of "peering" agreements that the major backbones have with each other.

      Comcast has to pay for packets that are routed outside their nets, and get to charge for packets coming into their nets, so they throttle upload and open up download rates.

      Always follow the money.

      --
      By the taping of my glasses, something geeky this way passes
    4. Re:Can we run servers yet? by Ark42 · · Score: 4, Informative


      Comcast won't allow servers, but most DSL providers do, and they don't block your ports either usually. SBC lets you opt-out of any port blocking they do (currently just some outbound port 25 blocking I think, but only for the residential package)

    5. Re:Can we run servers yet? by Gentlewhisper · · Score: 2, Interesting

      I think this is a deliberate move by the ISPs to segregate the market into "business" broadband and "home" broadband.

      By offering high upload speeds only with "business" plans (that costs many times more than residental plans anyway), they can comply with the mantra of capitalism.. which is to suck each and everyone as much as possible till they themselves are flush with cash.

      Unlikely to see home servers anytime soon.. :(

    6. Re:Can we run servers yet? by Skidge · · Score: 2, Interesting

      Wait--you want to run a web server to deliver high-bandwith items like photos, and a 384 kbps upload speed is what you consider adequate? Hope you don't have a lot of load, and some patient people at the other end of the line.

      For my purposes, 384 kbps is totally adequate. I have an audience of at most 20 friends and family that normally look at our photos. Plus, even it it was slow, the intended audience of my content would be patient. That's the nature of viewing personal photos of someone you care about.

      Currently, I have no technical issues keeping me from serving up web pages from my home server, and I do have an online photo gallery for my family. It's just Comcast's ToS that I'm not too fond of. I have been considering switching over to Speakeasy or similar, but with this bandwidth hike, I may stick with Comcast for a bit longer.

    7. Re:Can we run servers yet? by zymurgyboy · · Score: 4, Informative
      I think the problem the grandparent post is referring to is really more of a DNS question than anything else. Unless you're paying extra for business class service, Comcast issues a DHCP IP to your modem.

      Really, it sounds more like a question about a change to their TOS, actually.

      This is easily solved by services like DynDNS. But it's still in violation of the TOS.

      I've been using it for sometime and never had a problem with them, however. But then, all I have is a crappy webpage I rarely update. Other than that, it's primarily so I can map my domain over to my DHCP addy and get to my mailserver (I don't use their mail services -- rather host my own thanks), move stuff around with scp or admin things with ssh remotely.

      --
      If you never make mistakes, it's probably because you're not doing anything.
    8. Re:Can we run servers yet? by ZorinLynx · · Score: 4, Interesting

      This doesn't make sense; they don't allow servers, but they don't seem to mind BitTorrent, which consumes a lot more upstream bandwidth than webservers.

      I think they just put in the "no webservers" clauses so they have teeth to shut down abusers who post commercial websites and high bandwidth sites on the service. I know tons of people who run servers on ISP's that supposedly ban them and are never bothered about it.

      -Z

    9. Re:Can we run servers yet? by tdemark · · Score: 2, Interesting

      Comcast won't allow servers, but most DSL providers do

      Comcast has a "don't ask, don't tell" policy when it comes to servers. If you are running a small site, they really don't seem to care. Heck, I've seen a number of not-so-small sites running on CHSI home lines. Also, for better or worse, you can relay through their SMTP servers when you are on their network.

      Verizon, "doesn't allow servers", but, additionally, actively blocks all incoming port 80 access. Furthermore, you are only allowed to use their SMTP servers if your outgoing email address ends in @verizon.net .

      This information is gathered via accounts of these services in the Philly area.

      - Tony

    10. Re:Can we run servers yet? by krgallagher · · Score: 4, Informative
      This is from their acceptable use policy.

      "(xiv) run programs, equipment, or servers from the Premises that provide network content or any other services to anyone outside of your Premises LAN (Local Area Network), also commonly referred to as public services or servers. Examples of prohibited services and servers include, but are not limited to, e-mail, Web hosting, file sharing, and proxy services and servers;"

      --

      Insert Generic Sig Here:

    11. Re:Can we run servers yet? by Rude+Turnip · · Score: 2, Informative

      I've been using the PointClark dynamic DNS service that is associated with the ClarkConnect Linux distribution. I run an SSH server for tunneling with Squid and sometimes Apache to stream music from home (password protected; access limited to my IP address at work). Comcast doesn't say "boo."

      Their terms of service are as flexible as my options...if Comcast doesn't want me to run a piddly little personal server, I can take my business to a number of DSL providers.

    12. Re:Can we run servers yet? by Anonymous Coward · · Score: 2, Insightful
      That's all well and good, but will they let us do something actually useful with our service like run a web server?

      Of course not! What were you thinking? I'll bet you thought you could even VPN with all the flashy bandwidth. Wrong again! That's BUSINESS service. Kindly remit several hundred dollars a month or more for that.

      Really, all that Comcast, Cox, Time Warner and other cable Internet providers are doing by upping speeds without functionality (while prohibiting protocols that would actually use the speed) is offering extra plates at the buffet without providing extra food or ability to eat it.

      Your basic web downloads will not perform any better (your limitation now is really the response time of your upstream web server). Mail services, both sending and receiving, remain essentially unchanged (unless you are receiving large file attachments, but the difference between 3 Mbps down and 5 Mbps down is mostly lost when the bottleneck again is the mail server and the ability of your PC to process the incoming mail).
      What about other protocols/services?
      • Gaming has other bottlenecks external to download speed, and if anything, asymmetrical cable Internet is a liability in gaming. Better to have 600 kbps bidirectional than 5 Mbps down and 384 Kbps up.
      • IRC? No improvement.
      • P2P? Violates your terms and conditions of service.
      • VPN protocols: Most likely violates the terms and conditions (does for Cox residential service). SSH is regarded as a "business VPN protocol" by Cox. Apparently they prefer cleartext passwords in Telnet.
      • FTP downloads: Might notice some gains in performance. Is it worth $55 or more per month for the 3 minutes saved in downloading?


      If your local China Buffet raised the price to $20 per person, but allowed you to use 20 plates instead of 10, and only allowed you to choose from three or four different dishes (as all the other dishes were for the $50 "business diner" price), would you go for it? Or go over to Joe's DSL Diner (or Sam's Fixed wireless Cafe) for $5 per plate and have access to dozens of entrees with only 5 plates per diner?

      The clue to understanding cable Internet operations is reading their financial reports. They are targeting a monthly gross revenue of $225 per subscriber. That's what they require. If your phone = $60 and your digital cable is $90 per month, they're still $75 short. Guess where cable Internet prices are going? (Hint: say goodbye to that $35 entry rate). Don't like? Then do what you can to keep their competition in business.
    13. Re:Can we run servers yet? by whovian · · Score: 2, Interesting

      As long as you block the public from accessing your webserver (e.g., hidden URL, alternate port (like 22)), are the cable companies really going to hound you for sharing your private gallery? I would say to try it anyway. Hopefully Comcast doesn't have the time to monitor traffic content.

      --
      To-do List: Receive telemarketing call during a tornado warning. Check.
    14. Re:Can we run servers yet? by Dun+Malg · · Score: 2, Interesting
      This doesn't make sense; they don't allow servers, but they don't seem to mind BitTorrent, which consumes a lot more upstream bandwidth than webservers.

      I think it's less of a case of "don't seem to mind" than it is "can't find a way to stop without alienating all their customers".

      --
      If a job's not worth doing, it's not worth doing right.
    15. Re:Can we run servers yet? by zymurgyboy · · Score: 2, Interesting
      Mine too. It's only an annoyance when it does finally get released and renewed and you can't phyically get to the box to find out what the address is.

      It's worth the $10, or whatever it was, for a lifetime subscription for one domain to a dynamic DNS service. If for no other reason than never having to even think about it again.

      --
      If you never make mistakes, it's probably because you're not doing anything.
    16. Re:Can we run servers yet? by Jondaley · · Score: 5, Informative

      Try Speakeasy.
      As one of their tech support told me the other day, "That's the great thing about Speakeasy, you buy the connection from us, and then do whatever you want with it."

      That was in response to, "can I sell wireless internet to my neighbors, and not tell you about it?"

    17. Re:Can we run servers yet? by vk2 · · Score: 2, Insightful
      "Deliberate" ?

      New to the business world ?

      With Business the BB provides gives you assured service - meaning you pay what you get. With residential plans its "best efforts" so you pay the same bill even if the service goes down for a day or two [ you might be offered some carrots if you threaten to take your business to the compitetor. ]

      --
      No Sig for you.!
    18. Re:Can we run servers yet? by NardofDoom · · Score: 2, Interesting

      I emailed Comcast before setting up my own webserver. Their reply stated that it was okay that I have a web server, just so long as I wasn't hogging bandwidth. I printed it out in case of legal troubles, but haven't had any. All I use it for is publishing iCals (since my web host doesn't have WebDAV) and testing stuff. The upstream is too slow for anything else.

      --
      You have two hands and one brain, so always code twice as much as you think!
    19. Re:Can we run servers yet? by JesusQuintana · · Score: 2, Insightful
      "they don't allow servers, but they don't seem to mind BitTorrent"

      First, in my experience Comcast does not block any ports... at least by default. Now, if we pull out the service/license agreement (I don't have theirs handy, but I've read enough of them), I'm sure it says that you are not allowed to run a web server. So it is against that agreement to run a web server and they could terminate the agreement. But they don't actively prevent you from running a server.

      Skipping to another section of any standard ISP agreement, you'll find something prohibiting any sort of illegal activity. (ISP will cooperate with authorities, et cetera) Certainly, most BitTorrent traffic is illegal. But it seems to me that there are two issues preventing them from doing anything about it:
      1. BitTorrent does not conform to a standard port like webservers (port 80). In fact many torrent tracker sites won't allow you connect to their trackers with the standard ports. So BitTorrent traffic could be on virtually any port, making it significantly harder to block.
      2. BitTorrent users are paying customers. Alienating them or terminating their service agreements would result in a significant drop in revenue. As long as the increased costs associated with this traffic do not exceed the revenue generated by these users, you're making money.


      Comcast's primary goal is to make money. And it would seem they are pulling down a handfull of change.

      And if the broadband business was killing them, I doubt they'd shoot the bandwidth up, just to spite the already beleagured DSL business.
      --
      You said it man. Nobody f#%ks with the Jesus.
    20. Re:Can we run servers yet? by zymurgyboy · · Score: 3, Interesting
      On the contrary; it's plenty good enough for hosting your own IMAP server too. Being able to make and destroy as many mailboxes or aliases as you want, at will, is damned handy.

      If you've got the means and the wherewithall to access your server remotely, you can literally do this from anywhere you can get a port 22 connection.

      This is nice when you want to give some corporate sales slug an e-mail address but you don't quite know if you trust them. I've given out addresses that didn't exist on my domain to people like that, then quick made it so on my server after our meatspace conversation ended. Voila! I get their marketing crap for a while, then if they become annoying or I'm simply not interested in their stuff, I just remove the alias I gave them and... Bubye.

      That approach has proven a lot easier than having to say, "gee, I don't think I'm interested," and then having to live through their hard sell.

      --
      If you never make mistakes, it's probably because you're not doing anything.
    21. Re:Can we run servers yet? by Jondaley · · Score: 3, Informative

      Hrm. Maybe that doesn't apply to me because I am considered a "business customer" in their eyes.

      As far as I can tell, the only reason I am considered a business customer, is I talked to a sales person and asked him a bunch of questions before ordering, and to get me to sign up for a more expensive plan, he gave me a $10/month discount.

      And, from then on, they put me in a special queue, for business customers, and a "Dedicated Account Manager", though I don't know if that is really anything special or not.

      I do have more services, ie. email address/DNS hosting than other speakeasy customers I know of...

    22. Re:Can we run servers yet? by Stripes007 · · Score: 2, Informative

      It's only an annoyance when it does finally get released and renewed and you can't phyically get to the box to find out what the address is.

      A 2kb perl script on cron can check the IP against the domain's DNS and mail the new one to an outside address (mine goes to a web-enabled cell phone)

      --
      Stripes: Because stars are overrated
  2. Hidden cap by Dekks · · Score: 5, Informative

    Doesn't matter how much more bandwidth you're given if you can't use it without fear of getting a letter saying you're over whats considered reasonable bandwith use in your area, which is why I've stuck with 1.5m/384k DSL.

    1. Re:Hidden cap by moonbender · · Score: 2, Funny

      If anything, you should get a letter for downloading VCD Telesyncs. Eugh.

      --
      Switch back to Slashdot's D1 system.
  3. Holy cow by BlkSprk · · Score: 2, Funny

    Thank god I chose Comcast and scoffed at my folks for getting DSL. ::dials comcast and orders the extra service:: Porn is now even faster.

  4. Quick Question Actually. by Bumjubeo · · Score: 5, Interesting

    All the cable companies seem to be increasing the bandwidth of their cable service. The cable company in my city recently upped to 5mb down, 1mb up. How are they making their bandwidth so much higher without changing the cables? Is it all about voltage, or has coax been able to handle this all along, that they have just been throttling back?

    1. Re:Quick Question Actually. by DaHat · · Score: 5, Informative

      Their keeping your bandwidth low has less to do with the wiring between you and them than it does with the head end setup. Most cable modems support data transfers around 40mbs, each way. Most cable companies do not have enough bandwidth or hardware at the head end to support so a large number of people having so much bandwidth... so they cap you nice and low to keep their network running fast.

    2. Re:Quick Question Actually. by CreatureComfort · · Score: 2, Interesting


      The speeds are all artificially throttled. My work has a 100Mb VLAN running over exactly the same cable plant that my home Comcast account only gets unbalanced 3Mb on. Of course they pay more, but I'm sure the only difference on the cable companies end is a config setting on a central router, and a setting on the modem.

      --
      "Unheard of means only it's undreamed of yet,
      Impossible means not yet done." ~~ Julia Ecklar
    3. Re:Quick Question Actually. by froggero1 · · Score: 2, Informative

      This is taken from Cisco, should tell you everything that you wanted to know about coax cables. In short, you can achieve up to 100Mb/s with it, but that might start to infringe on your TV and such...

      Anyways, here it is:

      This page provides detailed information about coaxial cable.

      Coaxial cable consists of a copper conductor surrounded by a layer of flexible insulation. The center conductor can also be made of tin plated aluminium cable allowing for the cable to be manufactured inexpensively. Over this insulating material is a woven copper braid or metallic foil that acts as the second wire in the circuit and as a shield for the inner conductor. This second layer, or shield also reduces the amount of outside electromagnetic interference. Covering this shield is the cable jacket.

      For LANs, coaxial cable offers several advantages. It can be run longer distances than shielded twisted pair, STP, unshielded twisted pair, UTP, and screened twisted pair, ScTP, cable without the need for repeaters. Repeaters regenerate the signals in a network so that they can cover greater distances. Coaxial cable is less expensive than fiber-optic cable and the technology is well known. It has been used for many years for many types of data communication such as cable television.

      It is important to consider the size of a cable. As the thickness increases, it becomes more difficult to work with a cable. Remember that cable must be pulled through conduits and troughs that are limited in size. Coaxial cable comes in a variety of sizes. The largest diameter was specified for use as Ethernet backbone cable since it has greater transmission lengths and noise rejection characteristics. This type of coaxial cable is frequently referred to as Thicknet. This type of cable can be too rigid to install easily in some situations. Generally, the more difficult the network media is to install, the more expensive it is to install. Coaxial cable is more expensive to install than twisted-pair cable. Thicknet cable is rarely used anymore aside from special purpose installations.

      In the past, Thinnet coaxial cable with an outside diameter of only 0.35 cm was used in Ethernet networks. It was especially useful for cable installations that required the cable to make many twists and turns. Since Thinnet was easier to install, it was also cheaper to install. This led some people to refer to it as Cheapernet. The outer copper or metallic braid in coaxial cable comprises half the electric circuit. A solid electrical connection at both ends is important to properly ground the cable. Poor shield connection is one of the biggest sources of connection problems in the installation of coaxial cable. Connection problems result in electrical noise that interferes with signal transmission. For this reason Thinnet is no longer commonly used nor supported by latest standards, 100 Mbps and higher, for Ethernet networks.

      --
      ~/.sig: No such file or directory
    4. Re:Quick Question Actually. by SuperQ · · Score: 2, Informative

      You're a little off on the numbers.. but here is some better info.

      http://www.dslreports.com/faq/8084

      The big reason for the difference between up and down is the fact that the head end can transmit much faster than the modem can upload.

      most modems are DOCSIS 1.0 or 1.1

      This gives a bandwidth of 30-38mbps down and 5-10mbps up per "node" on the cable companies network. Compare a "node" to an ethernet hub where everyone shares the bandwidth.

    5. Re:Quick Question Actually. by bsd4me · · Score: 2, Informative

      The only thing in common is the fact that they use coaxial cable, but even then they use different impedences (10base2 is 50 Ohm, DOCSIS is 75 Ohm).

      10base2 is a baseband CSMA/CD system. IIRC, the baseband encoding is Manchester.

      DOCSIS is a modulated FDM/TDMA system. Upstream is QPSK, downstream varies between 64QAM and 256QAM depending on the ranging results during the initial modem negotiaions. In the US, channels are on 6 MHz spacing, and the carrier frequency is set the provider to fit in with their digital cable channels.

      --

      (S(SKK)(SKK))(S(SKK)(SKK))

  5. invisible bandwidth caps by mabus42 · · Score: 5, Informative

    comcast also has invisible bandwidth caps of which they have been reluctant to publicly disclose. for those that have sbc's 6/608 or verizon's 3/768 service available to them, i would suggest dsl instead. oh yeah, comcast only gives out a paltry 2GB of newsgroups transfers, further diminishing the value of their services compared to dsl offerings with unlimited newsgroup access.

    1. Re:invisible bandwidth caps by mabus42 · · Score: 3, Interesting

      According to many of the reports in the comcast forum at http://www.dslreports.com comcast has re-worked their contract with giganews to double the amount... perhaps you should search the forums there for more info.

  6. NTL in England are doing similar in March by LiquidCoooled · · Score: 2, Interesting

    300kbit -> 1mbit
    750kbit -> 2mbit
    1.5mbit -> 3mbit

    They are asking for a one off fee of £25, but it definately looks rosey :)

    http://www.theregister.co.uk/2004/11/03/ntl_q3_04/

    --
    liqbase :: faster than paper
  7. I would rather see them dropping prices by Anonymous Coward · · Score: 5, Interesting

    The minimum price is $43 for comcast customers and
    almost $60 otherwise.
    I think $29 for 1.5/384 servce from verizon looks a lot more attractive.
    The extra bandwidth will not improve my experience 2 fold ...

  8. Now if only they take a shot at their penalty by Technician · · Score: 2, Interesting

    I'm hoping the next shot will be against the penalty for not subscribing to the Cable TV service. I could see them taking a proper shot to woo users off Satelite TV by offering a Cable TV discount. But nailing non-subscription TV users with a extra charge (disguised as a internet price break for having cable TV) is why they don't have me online with them yet.

    --
    The truth shall set you free!
  9. Ok thats nice for all "comcast pro" people. by thegoogler · · Score: 2, Interesting
    But 384k still doesn't compete with DSL, sorry comcast. you fail again. combine this with the fact that your rasing your prices soon im sure, and it will cost just as much as 1.5/768 DSL again for less service.

    Why dont they understand that i dont care about the download? it was more than fine at 2mb a yea ago, i just need more upload. if they had a 1/1 option i would get it in a second, or even a 1/768 for the same price. its bullcrap that they cant provide us with more upload, there just still scared that where "going to run servers". they need to get with the times like speakeasy/ /. dsl and have more open policies. -and better upstream bandwidth-

    1. Re:Ok thats nice for all "comcast pro" people. by Detritus · · Score: 3, Informative

      The problem is that their system was designed to have asymmetric bandwidth. The uplink and downlink use different paths and technology. This can't be changed by decree.

      --
      Mea navis aericumbens anguillis abundat
    2. Re:Ok thats nice for all "comcast pro" people. by cwj123 · · Score: 2, Funny

      You've obviously never made a completely ridiculous decree before.

  10. Dear Comcast, by Anonymous Coward · · Score: 3, Funny

    I apologize for moving away on you. Now that I live in Eastern CT I'm stuck with a crappy cable company, ECC. Would you please gobble up this pathetic company into your growing empire. And while you're at it would you please allow people to run servers at home with that 384 up bandwidth. I'd much rather host my own website than be forced to just share torrents all day. Oh and I promise not to extract any HD content from the new Motorola 6412

    Thank you,
    A former and soon hopefully future Comcast disciple.

  11. Forced upgrade by Linuxathome · · Score: 3, Interesting

    Some of us running the older DOCSIS 1 compliant cable modems can only get a max of 3Mbps download. This move could also mean more money for Comcast with more people wanting to rent their cable modem to capitalize on this increase in bandwidth.

  12. Reliable service would be news by G27+Radio · · Score: 2, Informative

    Comcast upgraded our area to 4Mbit close to a year ago with no announcement or additional charge. That's great, but I've been thinking about switching back to DSL anyway since Comcast's high-speed Internet access has been dropping out several times a month in my neighborhood. Sometimes it drops out for an hour, sometimes for a whole day.

    When I had DSL I only lost service once in the course of an entire year.

  13. Theoretical Bandwitdth by Prince+Vegeta+SSJ4 · · Score: 2, Informative
    is about 30-40 mbps, of course this is generally not reached in real world scenarios, cable still has a way to go.

    LINK

    LINK

  14. Verizon FiOS by Anonymous Coward · · Score: 5, Interesting

    I'm in the Dallas/Fort Worth area and just got the new Fiber Optic service from Verizon. I'm currently using the slowest package offered, which is 5mbps down and 2mbps up. There are also 10 down and 30 down packages. I was paying $60 a month for Comcast at 3mbps down, but now I'm paying half that for this new service. I had nothing but trouble with my Comcast connection, so this little bump in speed isn't going to help them much.

  15. Why are uploads so pathetic. by EasyTarget · · Score: 3, Interesting

    Why are US DSL lines sooo asymettric. 6Mb down, 0.25Mb up, etc.. My experience here in yrp is that things are more even, 8Mb down usually gives 2Mb up, etc.
    Do US provides buy their upstream bandwidth asymetrically too? So they have to cap customers upload.
    Or are they just a bunch of ex TV retards who think of the Internet as a TV with the remote connected directly to their marketing database? and are horrified/confused by the idea that other people might want to broadcast too.
    Maybe I'm too cynical, and this is just how people want it.

    --
    "Oops, I always forget the purpose of competition is to divide people into winners and losers." - Hobbes
    1. Re:Why are uploads so pathetic. by action789 · · Score: 2, Informative

      Its not a business decision, its a technical one... Unfortunately, the DOCSIS protocol for cable modem networks specifies a different method of reserving channels for upload than download.

      Downloads typically are reserved a 6 MHz band for each subscriber, while uploads share a 24 MHz band for the whole neighborhood. This is due to two factors:
      the frequencies used... (high-pass filters upstream, low-pass filters downstream) ...and the encoding method used (typical QPSK-256 downstream and QAM-16 upstream)

      Just thought I'd share the one thing I'm actually good at. :-)

    2. Re:Why are uploads so pathetic. by pavon · · Score: 4, Insightful

      Or are they just a bunch of ex TV retards who think of the Internet as a TV with the remote connected directly to their marketing database?

      No they are a bunch of intelligent businessmen who know that somewhere around 95% of home broadband users have no need or desire to serve large amounts of data. Given a fixed amount of bandwidth (limited by customers physical connection), they choose to allocate it in a manner that best serves their customers.

      Those 5% that do need to serve data can get a "business" connection that has a more balanced upstream, and whose contract allows the customer to run servers / LANs / etc off the connection.

  16. Give with one hand, take away with the other... by Anonymous Coward · · Score: 2, Interesting

    One of my clients has Comcast cable internet, and he's been having no end of trouble with it this past week.

    When they came out for service, they gave him a new cable modem, an RCA DCM425. This thing has a built-in NAT, and no apparent way to disable it or map inbound ports-- it has an extremely sparse web interface, so I can no longer remote into his fileserver to diagnose and fix problems (a big deal, since he's 40 miles away).

    One thing that the cable modem's web interface DOES do, however, is report on the maximum number of computers that it is set to provide NAT services for. This feature appears to be disabled at the moment, but it made me remember this old article.

    I wonder when they're going to let the other shoe drop and start charging on a per-connected-machine basis and change their ToS to disallow the use of other NAT devices?

  17. You get what you pay for by jfengel · · Score: 2, Interesting

    At least in my area, bottom-of-the-line DSL is significantly less expensive that bottom-of-the-line cable, especially if you don't already have cable. (And I don't, because I'd rather spend my time on the Internet and watching movies from Netflix. Or maybe even going outside.)

    Certainly I'd appreciate more bits than my 768 connection (which usually nets me significantly less), but for basic web operations (email, browsing) it seems more than tolerable. I can even download movie trailers as long as I'm willing to be a bit patient, and I do that infrequently enough that I'm willing to be patient. If I decided that wanted to go even further down on my entertainment expenses by dumping Netflix for Bittorrent, maybe I'd want more bandwidth.

    Mind you I've had reasonably terrible service from Verizon DSL, which is quite flaky, and I've heard good things about cable reliability (which seems odd, but I hear they've changed their tune since the last time I had cable in a year beginning with 19). But I find that raising both prices and bandwidth in cable doesn't lead to the price point that I want.

  18. Re:Too bad they're still EVIL! by loqi · · Score: 2, Interesting

    Ah, the rigor of anecdotal evidence. Me and every single person I know who's had Comcast has had pretty much rock-solid uptime without any connection snafus. Pretty much the polar opposite of what cable was like in my area when it was AT&T's game.

    --
    If other reasons we do lack, we swear no one will die when we attack
  19. A little coherence, maybe? by Dragoon412 · · Score: 4, Insightful
    In a move sure to be applauded by DDoS botnet owners everywhere...


    So, we bitch when they cripple spam zombies, then we bitch when they raise the bandwidth cap.

    Unbelievable.

    Well, I, as a Comcast subscriber, am very happy with this change.
    1. Re:A little coherence, maybe? by IO+ERROR · · Score: 2, Insightful
      So, we bitch when they cripple spam zombies, then we bitch when they raise the bandwidth cap.

      If they had crippled any zombies, I wouldn't be bitching. As it is, all the best botnets are on Comcast. Wake me up when they make their subscribers clean out their Windows boxes.

      --
      How am I supposed to fit a pithy, relevant quote into 120 characters?
  20. Contention Ratio by saur2004 · · Score: 5, Insightful
    Cable rep: Oh sure, we now offer 6Mb download speed comparable to high speed DSL.

    /. Customer: Whats the contention ratio?

    Cable rep: um....er....whats that?

    /. Customer: Kindly shove it where only your proctologist can find it. *click*

    I personally think that there should indeed be a law that all internet access providers must have their contention ratio prominently displayed. What good is 6Mb download if you have to share that with a thousand subscribers? Yes I know that DSL has its own contention ratios at the DSLAM but nowhere near the mess that cable trys to sell. But still they should be required to display this information as well.

    1. Re:Contention Ratio by Peyna · · Score: 2, Informative

      I've had cable from Comcast and Time Warner at a total of 6 different locations, and each time have been able to utilize the full 3 Mbps down at any time of day. All 6 of these locations where in densely populated areas, so that might have been part of the reason why.

      Most of the people I know with cable no longer have the problems that were complained about 5-6 years ago.

      --
      What?
  21. One step forward, two steps back... by Anita+Coney · · Score: 2, Insightful

    When I first signed up for Comcast's services several years ago, before they put up and down restrictions on it, I'd get 512 kilobytes up and down. Now they're giving us 512 up and 48 down. Until I get back what I originally got, I don't see an improvement.

    --
    If someone says he and his monkey have nothing to hide, they almost certainly do.
  22. Yes, too bad it broke 60% of users.... by Fallen+Kell · · Score: 2, Informative
    Comcast in their infinite wisdom, failed to actually test any of the rollout. In increasing the bandwidth, they decided to change the frequency that was used to send the signal to the customers' cable modem boxes. In doing so, just about every older box became "incompatible". They didn't completely break and fail to work, but they would drop packets left and right due to not being able to handle the higher frequency signal (they could handle the higher bandwidth if a lower frequency signal was still used to transmit the info).

    Comcast themselves had no idea that this would happen, and even failed to believe that the problem was on their end. People had been calling customer service for the first two weeks of the new year (Comcast made the switchover on Jan 1st), and were reporting general problems. The biggest problem was the fact that the changeover also affected just about every major DNS server Comcast had in existance, which were then also dropping packets as well. This added about a 5 second delay to most customers, in addition to the other problems occuring.

    So, we have customer systems dropping packets, and Comcast servers dropping packets, and adding the two together created huge usability issues across the entire network. But Comcast still refused to take responsibility for the problems in the early weeks, with the goal being to clear up the customer service lines as opposed to take problems down. Comcast has finally appeared to fix some of the issues within the last week by sending out upgraded software to customer cable modem boxes. I still believe they are having DNS issues (but then again, when is Comcast NOT having DNS issues), but I do not know as I stopped using their DNS servers 3 years ago due to how unreliable their DNS servers are (they were failing at least 2 times a week for at least 1 day at a time).

    In anycase, there has been speculation that there will be a price increase in 6 months timeframe, but this may not happen now. Origionally, the speed increase was going to coincide with a $5-$10 price increase as well, but that plan was dropped when news was leaked to customers. There was also supposed to be another $5 increase in 6 months, but that too may be dropped now as well. The other huge backlash Comcast is recieving is for removing unlimited newsgroup access for the former AT&T customers, who were origionally told at the time of the Comcast buyout that no loss of current service would occur, which was also a condition of the buyout/merger. Comcast's normal customers already had lost unlimited newsgroup access when Comcast took over the @HOME network in certain areas several years ago, and limited users to 1 gig a month newsgroup access. That limit was increased to 2 gigs a month Jan 1st at the same time they dropped support for the unlimited access for the former AT&T customers (in an atempt to appease them).

    I for one can not wait until Verizon brings fiber to the home. I live in one of the lucky few test/rollout states (NJ) which will begin to recieve service during this year. Comcast is going to have some serious problems when that occurs, as the initial pricing is actually cheaper then Comcast's normal cable modem service, and is faster then Comcast's premium 6mbps service, with much less restrictions (i.e. Verizon does not care how you use it, as long as it is legal, so servers for web, email, ftp, etc., are all allowed, and unlimited newsgroups service is included).

    --
    We were all warned a long time ago that MS products sucked, remember the Magic 8 Ball said, "Outlook not so good"
  23. Docsis 1.1 by papasui · · Score: 5, Informative

    Few people understand how Cable bandwidth actually works. It all hinges on your QAM modulation and the number of customers combined to the downstreams and upstreams. The max dowstream bandwidth at docsis 1.1 per cmts blade is about 35Mbit and the max upstream is roughly 10Mbit. This is at 256 QAM on the downstream and 16 QAM on the upstream and upstream channel width of 3.2Mhz. Now I manage 18 CMTS in my day job, that average customer count per blade is around 1250. Each blade has it's own downstream channel and 6 upstreams. So now you have 35 Mbit on the downstream shared between 1250 customers and approximately 125 customers sharing 10 Mbit up. You can get more bandwith by reducing the node combining down to a 1:1 ratio where each node has it's own upstream channel but that involves plant redesign work and additional investment in more CMTS's (big $$$$) and by running different frequencies. But the big gain would be to move to docsis 3.0 (2.0 only offers an additional 10Mbit on the upstream) where they say each downstream channel will be able to offer 200Mbit down and 100Mbit up. And yes I am a RF Network Engineer.

  24. What about those Merger talks???? by kevinT · · Score: 2, Interesting
    Lots of comments about Comcast this and Comcast that, but the header indicated something about Merger talks between baby bells?

    I watch that kind of stuff closely (something about wanting to feed the family and not likely layoffs that usually result from such mergers), but nothing has blipped my radar till this!

    Ok, anyone have any good stuff I can spread around at the office?

  25. An old problem that stuck around by billstewart · · Score: 4, Informative
    Their dislike of upload bandwidth isn't the money - cable modem technology is inherently asymmetric.
    Cable modem companies had serious performance problems in the early years - cable TV distribution equipment was pretty shoddy, and the cable modem equipment was relatively experimental, so the native performance wasn't very good, and they didn't have any effective way to limit user's upstream bandwidth. They were absolutely terrified that somebody would trash their neighborhood's cable modem performance by using too much upstream, and especially terrified that the bandwidth would be hogged by somebody running a Pr0n website, back when pr0n on the internet was still a somewhat scandalous concept. Their performance really wasn't all that good, and Pac Bell's "Web Hog" TV ads, while dishonest, were extremely effective.

    So they made inflexible hard-core policies against running anything server-like, and it became a religion for them. The fact that they didn't understand what a "server" really was wasn't relevant - an Instant Messaging client is a server, and interactive game programs are servers, and they like both of those, and "email servers" don't consume scarce upstream bandwidth, they use plentiful downstream bandwidth.

    Napster was another big issue - not only was it a bandwidth hog, but it was Pirating Content, and TV stations are really in the content business so that was obviously Bad Bad Bad. Not everybody at Comcast was clueless - when I talked with some of their engineers privately, their opinion was "Like, duh, why do you *think* people buy broadband? It's so they can download music faster, and Napster's the best marketing tool out there for us, even if we officially pretend to hate it."

    --

    Bill Stewart
    New Fast-Compression-only CPR http://preview.tinyurl.com/dy575ks
    1. Re:An old problem that stuck around by sweetwayne · · Score: 2, Informative

      Yeah, I remember going into a Cox expo some years back, when Napster was in its heyday, and seeing it installed on all of their demo computers. The saleswoman even said, "look how fast you can download music with our service."

      --
      This sig intentionally left blank...
  26. Re:neeeeerrrrrrrds!!!!! by kaustik · · Score: 3, Funny

    That really should have stayed in Vegas. I feel like less of a person having just glanced at the thumbs...

  27. Oh no SBC doesn't. by emil · · Score: 3, Interesting

    All outbound traffic on port 25 is or will be blocked. Outbound email must be routed through their authenticated SMTP agent.

    I ordered SBC DSL basic service and was considering a switch from cable modem (mediacom). I requested that the port 25 block not be applied to my account and was refused (they advised me to upgrade to the more expensive service).

    Remember that there was a recent court decision allowing ISPs to read your email when it touches their hard drive.

    I dumped them, and I told them exactly why. You should too.

  28. Making Room for the "Value" Segment by CactusInvasion · · Score: 2

    Another important thing these companies are doing is making room for a "value" segment of the market. Cox in Phoenix, after raising all $50/mo customers from 3Mb/256 to 4MB/512 then began (very quietly) selling "Value" cable internet of bidirectional 256k for $25/mo. Now they can squeeze Qwest DSL from both directions - the cheap aspect with "better than dial-up" speed at a fairly low price, and the speed aspect, where they come much closer to obliterating Qwests's bidirectional 768. It's always about a bottom line.

  29. So long SBC. by emil · · Score: 2, Informative

    I am ameritech also. I found the notice on dslreports.com.

    Port 25 Block Notice

    On Mon, 1 Nov 2004, SBC Service Abuse wrote:

    Thank you for contacting SBC Internet Services' Security Policy Team. We have received your request to be removed from our Port 25 filtering.

    We are unable to grant your request. If your needs require that you run a mail server we recommend upgrading to an Enhanced DSL account which allows you to sun your own server/s. Please call 888-827-5722 to order and use promotion code ______. Otherwise we recommend you look into a list server such as the free service offered at http://groups.yahoo.com.

  30. Comcast etc.. evil empires ... blah blah by x40sw0n · · Score: 2, Informative

    All big providers have some benefits and some negatives; I am lucky with Comcast actually; I have gotten excellent service, very few outages (1 that had anything to do with them in the last 6 months) I have never recieved any nasty letters from them at all (regardless of how much bandwidth I was using, though I was not stupid enough to uncap my modem). I have had speeds exceeding 400kb down and well over 180k up (yes i use bit-torrent, and yes Naruto is a REALLY popular torrent...). I have been with Earthlink, Verizon and now Comcast. Earthlink was very solid, but nowhere near as fast. Verizon's service and speed were awful. I had them for 4 months; I had 7 outages, atrocious speeds, and at first they told me that service wasn't available in my area (though my neighbor had it). I went with Earthlink at that address at first, then Verizon offered a cheaper deal right as my contract ended with Earthlink. Big mistake. I have gone with Comcast, got digital cable and got my internet for $40 a month; ditched my phone (saving me another $25 a month, or more) so even though I paid more for cable i ended up saving money. it isn't exactly like any of these guys are all for the little guy. of all of the providers i think Earthlink is probably the most geek-centric of them, (the have extensive and very helpful how-to articles, that I still use).

  31. Dear Comcast by NinjaPablo · · Score: 2

    Please stop giving me speed increases I haven't asked for, and instead split your billing options into several plans. I don't need 3mb/256k or 4mb/384k. I would be happy with 1.5mb/128k. And please make such a lower speed plan cheaper than your almost $50 a month current rate.

    (I'd go with DSL, but the costs of a land line + DSL service is pretty much on-par with Comcast)

    --
    SmashTech - No smashing of tech involved
  32. it's definitely (not) there by kardar · · Score: 2, Interesting

    It was 300 gigs per month for a while, but all of a sudden it appears to be 200 or 225 gigs for last month (they just placed the calls last Friday).

    The problem is that if you only get notified 13 days into the month that you went over last month, you're still dealing with everything you downloaded the first thirteen days of THIS month, and if that amount is too much for next month's cap (say they move it down to 150 gigs next month), then you just lost your internet connection and there's not a damn thing you can do about it.

    To add insult to injury, they say it's a "courtesy call", and suggest that you might be interested in their business offerings (which have the same exact limitations), and many people get the impression that there aren't these limitations with the business accounts, they order the more expensive business accounts, download away, with one strike already against them, and end up getting disconnected the next time around. It's evil.

    They were cracking down on upload last year, but at the moment it appears to be something like 200 or 225 gigs per month combined. They crack down, though, whenever they upgrade the speeds so next month it could be 150 gigs per month or too much upload - which is usually anything over 30? or 40? gigs - something like that -

    It's evil. It's just totally evil. I suppose it's better than some of these cable internet services with caps of 45 gigs a month or whatever; but it isn't anything even remotely approaching the rock-solid knowledge that you can download whatever you want, whenever you want (provided it's legal, of course) with your DSL line.

    You need to be really, really careful with Comcast - they are very very unpredictable when it comes to using your internet connection. It's sort of like owning a Ferrari or something, but having a national speed limit of 70mph which you can practically reach in first gear. The speed is there, but you can't use it. It's very strange.

  33. Simple Marketing by Corellon+Larethian · · Score: 2, Informative

    Recently, I had been using Multimedia cable, until they were bought out by Cox. And just like a Pentium IV 3.0ghz processor has more gigahurtz than an AMD64 2.0ghz processor, Cox was marketing two different speeds. Never mind that if you were not a "sporatic" user of that bandwidth, they would impose a cap so that you didn't actually *have* the bandwidth for which you paid.

    Between DNS servers going down, and Cox actually dropping the connection to my cable modem, dialup would have been faster. It would have at least been reliable, and I could count on being able to check the weather and news on a consistent basis. I just up and moved to SBC DSL, because it was the only real alternative. Cox offered me a lower price if I'd stay with them, but it wasn't even worth what they were wanting.

    Sure, my "maximum" bandwidth on DSL is much less; 384kbps upload, 1.5mbps download. But I get that reliably. I can rely on being able to browse the web. Over the course of a day, my DSL is far faster than cable, simply because I'm not waiting for web pages to load.

    Cox has become absolutely terrible in my area. I say fuck'em. I will pay more for a reliable connection than I will for false advertisement.

  34. correction by author to above post by kardar · · Score: 2, Insightful

    Actually, with all due respect, it would be incorrect to say "many people have ordered the business services when they have been notified of excessive download" -- it's more accurate to say that a "limited amount" of individuals have done this in the interest, or in the hopes of having larger amount of data transfer being available to them - say, for instance, a family that has many teenagers and xboxes and audio streams and video communications and things like that - but the invisible caps appear to be the same regardless of the service levels you purchase.

    The real problem is that people aren't given any clear guidelines how to go about limiting their bandwidth consumption (i.e. "how much is too much"), perhaps due to the invisible caps changing from month to month depending on various things, and of course, lots of people don't have a means of measuring how much they use anyway, which is probably the reasoning that Comcast uses when they instruct people to "just cut down".

    They usually tell you to "just cut down", which, in the case of a single individual downloading tons of stuff is probably fairly self-explanatory, but when you have a shared connection with, say for instance, a houseful of college students, or a big family with numerous xboxes and such, this can become more difficult.

    I think the solution would be to at least attempt to provide some sort of approximate guidelines, more specific than "just cut down", and perhaps institute a temporary suspension prior to cutting the service off for good. It's pretty clear that many customers would be perfectly happy to switch to DSL if their usage patterns are in excess of what Comcast would like, but DSL isn't available to them. In cases like these, it just seems that there ought to be some way to provide some sort of guidance for people as to how they can keep their connection, and not get cut off - something closer to a three strikes, you're out. The problem is that theoretically, at least, you may have used up too much bandwidth already for the current month by the time you get notified for last month's excesses, and you can do nothing but wait for the disconnect a month down the road. This has apparently happened to some people who were downloading extreme amounts of data, or to people who misunderstood what "just cut down" means. The invisible caps aren't advertised, and their existence isn't publicized anywhere, isn't in writing anywhere, and a number of customers have reported being caught totally by surprise, having had no idea that there were any kind of limitations on the data transfer they were allowed to do... DSL lines in the US certainly have no such restrictions. Nor does there appear to be any way to plead your case or get the service turned back on. These are just a couple things that Comcast could do to make the situation a little more "user friendly", I guess.

    But as far as the connection, and the speeds, those are, for the most part, very stable and very good. It's just in these few isolated situations, particularly situations where you have a houseful of teenagers or college students all sharing the pipe, it becomes very difficult to know what to do; and it can be a very frustrating experience to deal with. It just seems that there has to be a better solution. Simply providing guidance to those individuals who have been warned wouldn't even require publishing any kinds of hard limits, and would still allow the limits to be computed from national aggregate data each month. Some people may not understand how to comply with "keep it under 100 gigs a month", or may not have any means to measure that, and for those customers, "just cut down" might be the best way to explain the situation, but there are plenty of tech-savvy people who have had this problem who would be more than happy to comply with "keep it under 100 gigs a month" or "keep it under 50 gigs a month" or whatever. There's just no reason to turn it into a guessing game, really.

    I really don't mean to knock Comcast or anything, I am sure they hav

  35. $20 per month by jmichaelg · · Score: 2, Interesting
    I don't watch TV so when Comcast started pitching Internet service, I was an especially hard sell. They wanted $60/month and Pac Bell was going for $27/month. Just wasn't worth it.

    One day I got a call and they offered me $20/month for 6 months and $20 install. The cost to try wasn't too bad so I bit. This month, the promo period ended and my bill went up to $60. I picked up the phone and told the clerk, "drop the price or I drop the service." She said she couldn't do anything so I said, "OK, I understand. Please cancel the service." At that point, she transfered me to someone who had negotiating authority. We dickered around for a bit and I settled at $30/month, or 50% of the posted price.

    What I think is happening is Comcast doesn't know what the market will bear and is willing to dicker to figure that out. I'm getting ready to call Comcast back because Pac Bell came back and offered me DSL for $20 if I buy their long distance service from them. The only place I've found that faster than DSL matters is downloading video. But all too often, if everyone is going after the same video and nobody is using bit torrent, the speed advantage vanishes. Besides, $120 per year savings will buy me and my sweetie a nice night out.