iansltx
join:2007-02-19
Golden, CO
 ·Comcast
 ·Qwest.net
 ·magicjack.com
 ·BeeCreek Communica..
·Sprint Mobile Broa..
| 38 Mbps x 8
= 308 Mbps per node, but with a huge tax on availability of other services due to how much space eight downstream channels would take up. To top it all off, BPON is still 2x that speed, and GPON is about 700% faster.
So even if cable operators deploy the tech, they'd have to do a ridiculous amount of node splitting in order to compete with fiber. Goshdarnit, you just can't win, can you? |
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imrf
Premium
join:2002-06-06
Utica, MI
·Comcast
·WOW Internet and C..
| said by iansltx  :So even if cable operators deploy the tech, they'd have to do a ridiculous amount of node splitting in order to compete with fiber. No they don't. If they went pure IP, meaning they dump all legacy analog channels, they would have 107 open channels on a 860mhz system. Add up those numbers and see what kind of bandwidth you have there without needing to split or upgrade.
Goshdarnit, you just can't win, can you? While FTTP is great on paper, in reality it isn't quite there yet. Cable can do some upgrades and make their current network as fast, if not faster than what Verizon has deployed and is deploying. |
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cdru
Go Colts
Premium,MVM
join:2003-05-14
Fort Wayne, IN
| reply to iansltx
said by iansltx :To top it all off, BPON is still 2x that speed, and GPON is about 700% faster. ...and in Verizon's FiOS case, none of that 2-7 times the speed is dedicated to providing television services except VOD. |
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Eat Me
join:2002-09-25
Sussex, NJ | reply to imrf
This is what I've been saying.
Cable can do a lot more with coax. It's not dead yet.
I would prefer to have fiber to the home, but if that's not possible, HFC can do a lot more than it is doing today. |
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Eat Me
join:2002-09-25
Sussex, NJ | reply to cdru
Verizon's TV service is the same as an 860MHz cable system. If cable companies go to 1GHz and make the nodes smaller, they can provide an equivalent service offering. |
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ISurfTooMuch
join:2007-04-23
Tuscaloosa, AL
| What good is all that speed?
This sounds great, but what good is it? I mean, you can only surf the Web so fast. It'd be great for HD video, but if you have caps, you can burn through that very quickly.
What the cable and DSL companies don't want to admit is that the Internet is changing. Sure, it's still used mainly for Web surfing and e-mail, but file downloads (legal and otherwise) are hugely popular, and so is VoIP, radio, and video streaming. The Internet is changing from a simple connection to one or more computers in a home to many different connected devices doing many different things, yet the cable companies and DSL companies are trying to make caps sound reasonable by talking about how many Web pages you can view or how many e-mails you can send. Well, that's not how many people are starting to use the Net now.
So again I ask, what good is all this speed if you have low caps? I guess it's good because you can hit the cap in a day, allowing the provider to resell your bandwidth to others much more efficiently. |
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djrobx
join:2000-05-31
Valencia, CA
·PHONE POWER
 ·AT&T U-Verse
·AT&T CallVantage
·Time Warner VOIP
·RoadRunner Cable
| reply to iansltx
Re: 38 Mbps x 8
said by iansltx := 308 Mbps per node, but with a huge tax on availability of other services due to how much space eight downstream channels would take up. To top it all off, BPON is still 2x that speed, and GPON is about 700% faster. So even if cable operators deploy the tech, they'd have to do a ridiculous amount of node splitting in order to compete with fiber. Goshdarnit, you just can't win, can you? Not if they go 1ghz. That's what Time Warner is doing in SoCal. Existing cable boxes and cablemodems can't utilize that space, but DOCSIS 3 gear can. |
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cdru
Go Colts
Premium,MVM
join:2003-05-14
Fort Wayne, IN
| reply to Eat Me
said by Eat Me :Verizon's TV service is the same as an 860MHz cable system. If cable companies go to 1GHz and make the nodes smaller, they can provide an equivalent service offering. Cable cos have to split the 860MHz of bandwidth between television, internet, and telephone service. Verizon has a dedicated lambda for television service and another for telephone/data/VOD. It's NOT the same. |
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k1ll3rdr4g0n
join:2005-03-19
Homer Glen, IL | Isn't this an oxymoron?
Each time the technology takes one step forward, the cable industry takes two steps back. At this rate, I think a couple of years we will have DOC, Dialup-Over-Coax. With pay per bit usage. |
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Eat Me
join:2002-09-25
Sussex, NJ
·PenTeleData
·Future Nine Corpor..
·VOIPo
·Vonage
1 edit | reply to cdru
Re: 38 Mbps x 8
If they go 1GHz they will have 140MHz beyond what Verizon currently has for the TV service. That 140MHz is is 23 channels. at 38Mbps per channel, that's 874MBps. That's a lot of bandwidth.
Throw in MPEG4 or IPTV transport for the TV portion and Cable will have plenty of room to be competitive with what FiOS is offering.
With 1GHz They certainly can offer what FiOS is offering today, and with higher frequencies and smaller nodes, what Verizon is offering 10 years from now.
Fiber may be sexy and all, but coax isn't dead yet by a long shot. |
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DarkLogix
join:2008-10-23
Baytown, TX | reply to k1ll3rdr4g0n
Re: Isn't this an oxymoron?
but you'll have gig service
lol it might be funny if it weren't plausible
you'll pay by the bit and have gigabit service so you could download a thousand $ worth of files in just a sec |
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Eat Me
join:2002-09-25
Sussex, NJ | reply to ISurfTooMuch
Re: What good is all that speed?
It's great for running speed tests and stroking your ego. |
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pende_tim
Premium
join:2004-01-04
Andover, NJ | reply to Eat Me
Re: 38 Mbps x 8
And what do we need to get Service Electric to upgrade their outside plant?
--
The difference between genius and stupidity is that genius has its limits. |
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jimbo2150
join:2004-05-10
Youngstown, OH
| Upstream?
I see all this talk about 8 downstream and everyone talking about 300mb/s+ download speeds... but what would the upload be? Are you replacing the four upstream channels with additional downstream? Separate upstream channels? Can you even upload with that modem? There are very few specifics...
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- "Techie" Jim |
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NetAdmin
CCNA
join:2008-05-22
| reply to Eat Me
Re: 38 Mbps x 8
said by Eat Me :If they go 1GHz they will have 140MHz beyond what Verizon currently has for the TV service. So? FiOS uses a completely separate lamba, or wavelength, of TV service. It doesn't matter if Fios TV is 850Mhz or 1Ghz, it has no affect on the bandwidth available for data, like in an HFC setup.
With 1GHz They certainly can offer what FiOS is offering today, and with higher frequencies and smaller nodes, what Verizon is offering 10 years from now. Currently, yes. In 10 years, no. When you add in telephone, VoD, HD and data altogether in that 1GHz of spectrum, you have at best, maybe five years of parity, but definitely not ten unless you start shrinking nodes down to less than 32 subscribers, at which point FTTH is more cost effective.
Fiber may be sexy and all, but coax isn't dead yet by a long shot. I agree that HFC has a lot of mileage left, but its ability to keep up with FTTH is going to become an increasingly uphill battle over time.
--
"This is a bus. You know how big a bus is?" |
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jmn1207
Premium
join:2000-07-19
Reston, VA | reply to jimbo2150
Re: Upstream?
Upstream will have a theoretical max up to 160Mbps.
»www.broadcom.com/products/Cable/···/BCM3380 |
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n2jtx
join:2001-01-13
Glen Head, NY
·Optimum Online
| reply to NetAdmin
Re: 38 Mbps x 8
said by NetAdmin :FiOS uses a completely separate lamba, or wavelength, of TV service. Or for those on this forum who are technically challenged to various terms, they can add more colors of light to their fiber, each color running at capacity. So I could run TV on blue, Internet on red and Voice on green. If I want more TV capacity I could add orange, yellow and violet. Of course the granularity is much greater than this but the concept is the same. Fiber has much more growth potential.
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I support the right to keep and arm bears. |
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etaadmin
join:2002-01-17
Dallas, TX
| reply to cdru
said by cdru :said by Eat Me :Verizon's TV service is the same as an 860MHz cable system. If cable companies go to 1GHz and make the nodes smaller, they can provide an equivalent service offering. Cable cos have to split the 860MHz of bandwidth between television, internet, and telephone service. Verizon has a dedicated lambda for television service and another for telephone/data/VOD. It's NOT the same. It actually is »en.wikipedia.org/wiki/Frequency People tend to ignore the real definition of the acronyms. Lambda or wavelength is defined by the speed of light in vacuum divided by the frequency λ=c/f
DOCSIS1~3 have different lambdas for VOD/VOIP TV and internet. 5-42MHz or if you wish lambda 60-7 meters for upstream 88-1GHz for downstream (3 meters-30 centimeters) for internet any 6 MHz segment (DOCSIS1-2) or multiple 6 MHz segments (DOCSIS3) and for VOIP any KHz segments.
In fiber optics you have 1490 or 1310 or else nM (nano meters) λ's
Lambda and lambada are not the same thing  |
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Eat Me
join:2002-09-25
Sussex, NJ
·PenTeleData
·Future Nine Corpor..
·VOIPo
·Vonage
| reply to n2jtx
said by n2jtx :Or for those on this forum who are technically challenged to various terms, they can add more colors of light to their fiber, each color running at capacity. So I could run TV on blue, Internet on red and Voice on green. If I want more TV capacity I could add orange, yellow and violet. Of course the granularity is much greater than this but the concept is the same. Fiber has much more growth potential. You should know about techncially challened. Doesn't sound like they covered a lot of theory in the technician test... *snicker*
Colors are simply different frequencies. RF or light, it's still the same concept.
There is equipment available today to push cable to 3GHz, which is triple the bandwidth it has today. This is more than enough to offer what FiOS can offer. |
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Eat Me
join:2002-09-25
Sussex, NJ
·PenTeleData
·Future Nine Corpor..
·VOIPo
·Vonage
| reply to pende_tim
said by pende_tim :And what do we need to get Service Electric to upgrade their outside plant? Their outside plant is upgraded in many areas. The Sparta system is DOCSIS3 capable. I'm running their 30/2 service at home with the DPC2505 modem.
To get them beyond that what they need is competition. Embarq seems to be happy just deploying DSL and nothing else. FiOS has had the effect of forcing cable companies to explore plant and wiring upgrades where previously they didn't even bother. Maybe Embarq needs to do the same, but it seems unlikely given their business model. |
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