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.

Comments

Can we run servers yet?

[Skidge]

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.

Re:Can we run servers yet?

[Jondaley]

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?"

Hidden cap

[Dekks]

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.

Quick Question Actually.

[Bumjubeo]

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?

Re:Quick Question Actually.

[DaHat]

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.

invisible bandwidth caps

[mabus42]

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.

I would rather see them dropping prices

[Anonymous Coward]

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 ...

Verizon FiOS

[Anonymous Coward]

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.

Contention Ratio

[saur2004]

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.

Docsis 1.1

[papasui]

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.