ITU Standardizes 1Gbps Over Copper, But Services Won't Come Until 2015 153
alphadogg writes "The ITU has taken a big step in the standardization of G.fast, a broadband technology capable of achieving download speeds of up to 1Gbps over copper telephone wire. The death of copper and the ascent of fiber has long been discussed. However, the cost of rolling out fiber is still too high for many operators that instead want to upgrade their existing copper networks. So there is still a need for technologies that can complement fiber, including VDSL2 and G.fast. Higher speeds are needed for applications such as 4K streaming, IPTV, cloud-based storage, and communication via HD video, ITU said." Meanwhile, I'm hoping Google Fiber, FIOS, and other fast optical options scare more ISPs into action along both price and speed axes.
What ISPs? (Score:2)
Why would FIOS scare Verizon DSL into action?
Re:What ISPs? (Score:5, Informative)
"The drawback with G.fast is that it will only work over short distances, so 1Gbps will only be possible at distances of up to about 100 meters. The technology is being designed to work at distances up to 250 meters, though transmission speed is slower at that distace. "
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"These limitations might keep the others from getting too scared; "
That isn't as much of a limitation as you seem to imagine. The majority of costs are "last mile". This means you can take fiber to a city block (more or less) and still get 1Gb to homes (or offices). In many cases this is far cheaper than fiber to the door.
It also means a possibly-viable alternative (competition) to cable. I know LOTS of communities that would like to have a competitor to cable.
Re: What ISPs? (Score:3)
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"You'd have to go out and install special equipment (similar to a "node" in cable/fiber terminology) within the max span distance of the actual structure you're servicing."
I am aware of this. I didn't claim it was cheap. I just wrote that it was "possibly viable".
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No, but it's the only ISP here, as it is many other places. I was sarcastically pointing out that fiber providers won't drive copper providers to provide better service because in many parts of the country they're the same company.
Still won't fix monopolies (Score:2)
This still won't fix the problem of some ISPs having a monopoly over some areas, such as Télébec in small Québec regions.
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In most cases the bottleneck is the cost of laying a brand new network with as little as possible visual pollution / cost and regulatory hurdles.
Designing a network with a limit of 250 meters cable run to each customer will require an insane numbers of G.fast DSLAMs, this alone makes this tech kinda dead on arrival.
GPON allows for 10Km fiber runs, and share a fiber strand for up to 64 users, the fiber is then split as it gets further away from the wiring cabinet. 10Km fiber runs are a waste for dense areas,
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Yeah, but GPON is very sensitive to how the fiber is split. I order to achieve 20Km ranges, you must split the fiber no more than twice (perhaps two 1x8 levels).
Anyhow, a serious deployment of GPON is likely to have the vast majority of customers within 3Km of each station.
10Km is a far more practical distance, even then only for very low customer density areas.
A 20Km fiber run should cost far more than a small GPON ONU !
GPON range limits are defined by signal losses, the Km based range is a simplification
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You don't get cable? I have comcast and get ~30 Mbps in Seattle for less $.
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That's strange... I'm just north of the border, and small out of the way places can get satellite from companies like xplornet.
Looking a their site; for 69.99 CAD, you'd get 5Mbps down, 1Mbps up; with 50GB transfer limit. That's not all that bad really, especially compared to what you have now. Granted satellite is going to have markedly higher latency, and doesn't really compare to regular broadband... but for someone in your case (where regular broadband doesn't reach) its very decent.
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Ok, I certainly won't argue that some companies are better than others... but xplornet in particular at least its a 1 year contract, $99 setup fee.
As for throttling, that I don't know first hand; as i only know a few people that have it, and don't have it myself. The official policy apparently is here:
http://www.xplornet.com/traffic-management/htv-itmp/ [xplornet.com]
And it appears to state that the top users will be throttled in 15 minute intervals to 50% of the maximum speed. And they are also disclosing that they throt
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Just a little info here from an xplorenet user (indirectly). SaskTel resells xplorenet's "4G" satellite service to rural customers. It has been a bit better than the previous version we were on before. The introductory program was free hardware and installation and 5Mb/30GB for $55/month for a year. After the year the price went to $85/month. Recently they reworked the packages and we moved to 5Mb/40GB for the same money. One can also go to 10Mb speeds for more $$ or less monthly transfer amounts. Wi
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Satellite at this price, wow ! But even then.
Far more logic would be 4G Wimax (towers have 3-4Km range in flat areas, and can service hundreds of active customers), a single satellite can't provide the same bandwidth that a dozen 4G towers (with 6 antennas each) can.
4G latency is 50-100ms, while satellites are typically 1 second plus.
So you can think of VOIP / online games with 4G (even though it won't be a great experience, while satellite it's a non starter).
And there's the unlicensed 5GHz alternative (WI
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You must be some 2Km away from the DSLAM (11k ft), or you're on some old, rusty cable.
This is the kind of situation that would be a non event on fiber.
4G (Wimax) wireless or 5GHz wifi should outperform this easily.
I support customers that use extremely cheap p2p unlicensed radios with 2,5Km links (with clear line of sight) delivering 45Mbps up+down performance with ease.
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Ubiquiti M5 family of products, there's the plain Nano M5, the more powerful NanoBridge M5 and finally the Rocket M5 (plus a high gain antenna).
Operation on links that long are very dependent on low levels of interference (specially other radios on the same frequency). Since this is an unlicensed frequency, if it works today, there zero assurance it will still be working a month from now, but being very cheap, it's usually a great cost x risk tradeoff.
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If you could receive the ADSL service (with the modem there) in a place with much better speed and install a pair of Ubiquiti Nano M5 (about US$ 100 for the pair), you could bypass the bad wiring.
But Nano M5 requires line of sight, for that tiny distance, you can power through interference with very high levels of confidence.
I use Nano M5 for 8000ft line of sight links, three driveways is what, 200-300 ft, so it should be piece of cake.
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The only fix for that is mandatory copper sharing. That forces the phone company to lease the customers' lines to any qualified competitor.
Did you miss the article yesterday where AT&T said they wouldn't lease to Google until they were qualified? If Google can't do it, your little homebrew shop is going to get squished.
In Soviet Russia the Poles install YOU! (Score:2)
Really, in Soviet Russia there are enough poles that don't belong to phone company, be it the trolleybus or tram poles, lighting poles, roofs of buildings a.s.o. (The phone network is almost totally monopolized by Rostelecom state monopoly and is underground buried in asbestos-cement tubes almost everywhere). The alternative providers use these poles.
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Go ALL THE WAY OUT! (Score:5, Interesting)
DAMN... at least once every 10 years pick a broadband solution and BUILD IT ALL THE WAY OUT. To every last house in the US. This never ending cycle of new technology coming out and being bult out to the edges of the big cities and then the next new technology hits and they stop where they are go back to the center of the big cities and start building out again.
Just once. Get something other than dialup and satellite all the way out to every last house in the US.
Re:Go ALL THE WAY OUT! (Score:5, Informative)
How? It has been a long time since there was any significant improvement in performance when the wires are longer than 1 km. ADSL2+, VDSL1, and VDSL2 perform about equally badly beyond that distance. You can go faster by doing G.SHDSL over multiple line pairs, but that is generally not economical.
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Given how many people have abandoned their landlines for cell-only service, I would think G.SHDSL wouldn't be so uneconomical given how many idle pairs there are.
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Fair enough on the line pairs, but the head end equipment seems to be more expensive than VDSL2 DSLAMs -- and you need at least twice as many ports if you want to bundle. I do not know the actual prices though. The CPEs seem rather more expensive too.
The only actual experience with G.SHDSL.bis was playing in a lab with OneAccess routers. Those are certainly more expensive than a typical CPE for home use, but they also have more features.
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The last mile in the boonies is where cellphones don't work well, so people haven't abandoned their land line service. It's also where you can't get decent internet access. I have access from a regional WISP, which charges me $45/mo for 1Mbps bursting to 3 (but mostly 1) and am about to move to another one which will give me a bit more for a bit less.
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My mother uses the mobile phone as long as their are plan minutes left; nights and weekends. During the day she uses the landline and is where she receives calls, because land-lines are very inexpensive. Mobile-phone only would actually be more expensive for her because she uses the phone a lot.
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Step one replace the wires. We have known this since what the 70's? I can get commodity 100ge optics that go 40km today x3 that at 10ge. And I can get more than one on a fiber pair with cheap CWDM.
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That does not really have anything to do with equipment upgrades at the central sites. Going from ADSL1 to G.fast in the city is mostly a matter of replacing line cards and DSLAMs. Putting new wires into the ground is an entirely different prospect.
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Point being copper is holding us back. ADSL is a dead end, attempting to breath life into a cable plant that is far past it's useful lifetime.
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Fair enough, you go ahead and put new fiber in the ground. Meanwhile the incumbents will offer G.fast at very little cost to them, because the copper investment has long since been paid off. Fiber is absolutely a better product, and you will undoubtedly be able to steal some customers who hate the higher latency of G.fast or feel cheated when their supposedly 1Gbps line only delivers 1Gbps when doing speed tests, never in actual use.
However, it is tricky to survive long enough for potential customers to und
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Were talking about AU, Telstra being the effective monopoly and the government looking to dump huge piles of cash into this. The point is to separate the last mile bits that effectively need to be a monopoly from actually delivering services. It's actually fairly comprehensive with a mix of fiber to the home, fixed wireless and satellite. Anti cherry picking provisions of the law requires anybody that builds there own network to offer access at similar prices. It also requires the incumbents to pull out
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Pull out the copper network? Why? It is dirt cheap redundancy, why throw it away?
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It's a dead end run by monopolies, the NBN is a take on accepting that last mile is a natural monopoly in most places and separating that from actually providing services and those people meet at so many cross connect points or use a wholesale provider to do so.
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Exactly. Signal processing has definitely improved, but a huge chunk of the range-improvement has come from better provisioning and wire management. 10 years ago, if you called SBC for DSL, the salesperson would query the mainframe to look up your distance, and if it said you were even a single foot more than their arbitrary cut off for g.Lite, as far as SBC was concerned you weren't getting DSL. Period, end of story. AT&T is still pretty anal, and you practically have to know as much about VDSL2 and ou
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It's not always built out to the edges of the cities. I live in a city and FIOS was built to the suburbs around me. If you live on the edge of the city, near the suburbs, you might be able to get FIOS. If not, you are stuck with Time Warner Cable or Verizon DSL. And Verizon is more and more trying to disown DSL users so that's not really an option. Since going without Internet isn't an option either, I'm forced to take what Time Warner Cable offers me at the price they demand and they know it so there'
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It's not always built out to the edges of the cities. I live in a city and FIOS was built to the suburbs around me. If you live on the edge of the city, near the suburbs, you might be able to get FIOS. If not, you are stuck with Time Warner Cable or Verizon DSL. And Verizon is more and more trying to disown DSL users so that's not really an option. Since going without Internet isn't an option either, I'm forced to take what Time Warner Cable offers me at the price they demand and they know it so there's no reason for them to improve service, speed up the network, or drop their prices.
Exactly. I live right in one of the largest US cities (given that you talk about Verizon *and* Time Warner, I suspect we're in the same place) and FIOS isn't even being planned for my neighborhood. I have DSL (from Megapath, nee Covad, nee Speakeasy) and live about 350-400 meters from the CO and get a pathetic 3Mb/sec down and 768kb/sec up. I refuse to go with Time Warner as they are about as close to pure evil as you can get. Verizon's DSL offering is even more pathetic and their customer service is le
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I don't think you understand how long it would take and how expensive that would be.
The US is one of the least dense countries in the world -- especially at its population.
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Countries like Sweden and Finland are even less dense and have much higher broadband availability. Yes, they are two orders of magnitude smaller than the US, but that means that they also have two orders of magnitude less money to spend.
It can be done. The only thing blocking it in the US is politics. The government prefers to spend many hundred times more than that on the military, even though it doesn't really need to.
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The US is one of the least dense countries in the world -- especially at its population.
Talking to the population around here, most of them seem pretty dense. Where they live is pretty spread out, however.
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> The US is one of the least dense countries in the world -- especially at its population.
Yes, and no. If you ignore the most rural 20% of the US, Britain, and France, there's really not that much of a difference. France & Britain have some pretty huge expanses of rural wilderness, too. Yeah, we have hundreds of thousands of square miles of desolate wilderness out west and in Alaska, but those areas are about as relevant & meaningful to the daily lives of people who live in Los Angeles, San Franc
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The US is one of the least dense countries in the world -- especially at its population.
Yes, and no. If you ignore the most rural 20% of the US, Britain, and France, there's really not that much of a difference.
Yes, and right now the problem is that there's lots of people in the USA with no broadband internet access at all, and even more who can't get anything worth using. That's a bigger problem than that some people can't get super-fast broadband.
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pick a broadband solution and BUILD IT ALL THE WAY OUT. To every last house in the US
Getting broadband to every last shack in backwoods Montana is going to be expensive. Why not do something more sensible and pick a (local) population density that will mandate service, and ignore the rest? If people want to live out in the boonies, they need to accept that some infrastructure-heavy services aren't going to be very available.
The bad state of things in some cities is something else entirely, and a good reason for tarring and feathering some politicians...
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Rural electrification doesn't require a separate circuit for each customer. Everyone wants pretty much the same 60 Hz signal as everyone else.
If you try running all the houses in a neighborhood in parallel with communications circuits, you end up with party lines - not inherently bad with TCP/IP, but you may have difficulty all watching video at the same time.
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Rural electrification doesn't require a separate circuit for each customer.
Electricity supply requires progressively higher capacity circuits as you combine more customers. Rural electricity supply also requires a substantial outdoor transformer for every isolated customer or cluster of customers.
Most* FTTH deployments i've read details of seem to be going for a PON system where a fiber from the exchange is shared between about 30 subscribers through a passive splitter. So in terms of number of circuits from the exchange it's probablly less than the party lines of old.
* B4RN being
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Are you going to pay for it?
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Nice idea (Score:2)
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This was true 3+ years ago.
Splicing equipment price dropped about 80%.
Today there's even mechanical splicing, regular splicing requires service vans to carry a generator to produce electrical juice to run the splice equipment, mechanical splice allows all equipment to fit in a handbag and requires no power.
Consider my telco (a competitive nationwide carrier) has recently announced they're phasing out copper, new installs will be 100% fiber, and over time they will start migrating VDSL2 customers to fiber in
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Sonic.net has found it rather easy to deploy fiber. They hang it up on telephone poles, like everything else. Google does this, too. It's actually cheaper to deploy fiber than copper, because copper metal is actually quite expensive these days.
Copper is cheaper only because it's _already_ deployed. But Sonic's amortized cost per household is something like $200, excluding termination equipment. Not that bad for deploying brand new infrastructure to existing households.
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Last report I saw on Obamas broadband initiative was that it cost $80 BILLION dollars to increase the number of people that could get broadband from 96% to 98%.
It would cost less to pay people $500/year for the next few decades to live without broadband. (Some people will gladly take this tradeoff.)
We can learn a lot from dystopian science fiction [wikipedia.org].
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DSL is cheaper than cable overall, because generally the copper wires already exist almost everywhere. Cable wires very often do not exist and can be very expensive to lay out.
The bigger snag though is that this infrastructure is all privately owned by monopolies. Ie, the phone company owns the wires (but there are laws requiring them to share), and cable companies own the cables (and they never share), and so forth.
When the original phone cables were laid out it in the US was because of subsidies and fee
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And that's just regular DSL and Cable. How much do you think it'd cost to do fiber?
Less than the copper, that's for sure. Fiber is cheaper. The only time fiber is not cheaper is when the copper already exists, and even then, the fiber will pay itself back in savings in 5 years or less.
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What would you normally do if something was 10x more expensive, 7x slower, more expensive to maintain, and more prone to issues
The upper limit... (Score:2)
As for FIOS, I can't deny that I worry, ever-so-slightly, about security. From what I understand, there's a single fiber pair that feeds numerous subscribers, and there's some kind of fan-out kit that sends the same signal from the service provider to all of the subscribers, and that phone company active equipment on each customer premises filters out all but the traffic
Re: The upper limit... (Score:2)
Re:The upper limit... (Score:4, Interesting)
Ya no... that's not how it works at all.
It's called a Fiber Mux: http://en.wikipedia.org/wiki/Multiplexing [wikipedia.org]
We do the same thing with your data when it's on copper, it's just a different kind of signal, in that case we use a DSLAM: http://en.wikipedia.org/wiki/Dslam [wikipedia.org]
(which is just another kind of mux)
If someone has hacked into your ISP to the point that they have control over the fiber muxes, you have a hell of a lot more to worry about than them listening to your phone calls.
Also, keep in mind that with copper, all they have to do is walk out to the pedestal behind your house and attach alligator clips to the right pair of wires and a spare speaker. And people DO do that, we've caught them. Hacking our muxes would require them to breach dozens of layers of security. It would be quite a feat.
Yes it IS how PON (Passive Optical Networks) work (Score:2)
Ya no... that's not how it works at all.
It's called a Fiber Mux: http://en.wikipedia.org/wiki/Multiplexing [wikipedia.org]
That's how things like DSLAMs work: One (or more for redundancy) fat pipe for backhaul, a router or switch in the box at the curb, and individual links carrying only each customers' data to the DSL modem at each customers' site.
Passive Optical Networks work like cable internet (and vaugely like the original party-line coaxial Ethernet): A pair of light frequencies (one outgoing, one incoming) connect
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A pair of light frequencies (one outgoing, one incoming)
I don't believe! It will mean that either there are 250 lasers of different color and some "prism" with 250 outputs to separate and combine them all, or 250 precisely tunable lasers and the same "prism". The TDMA scheme where lasers are ON in their dedicated time slots looks much more affordable.
I understand that such methods are applied in some deep sea cables but...
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You're thinking of a different scheme: Wavelength division multiplexing. That would be about as expensive as separate fibers to each house with individual transcievers. (Moreso, since the many different-colored laser transcievers are pricey.) Wavelength division multiplexing is about getting more bandwidth or channels out of fibers, in long-haul o
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(Moreso, since the many different-colored laser transcievers are pricey.)
Modern fiber ONTs have programmable lasers. They can very selectively tune the wavelengths used, down to the nano-meter of the wavelength used. They can also tune the bandwidth, spread, and guard size. Even the shape of the wave form. All packed into a $150 chunk of technology.
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that phone company active equipment on each customer premises filters out all but the traffic intended for that subscriber
The ONTs on the same segment can not talk directly to each other because of the way the optics work. This means each ONT can safely communicate to the head unit what encryption key to use with out allowing the other ONTs to listen in. GPON uses 128bit AES with rolling keys. If the data isn't meant for you, you won't be able to decrypt it.
Focus less on tech, focus more on competition! (Score:5, Insightful)
I'm stuck in copper-land thanks to the phone monopoly in my town, and the copper we have can't reliably transfer data at faster than 8Mbps. 15Mbps was great when it worked, but the disconnects were frequent. The residents in my town are never going to see gigabit speeds over our copper infrastructure. The phone company has no reason to improve it. There is no fiber alternative, Verizon pulled out of our state. Our cable TV monopoly is equally disinterested in provided higher speed service. This is probably a significant challenge all over the United States. We need to find a way to revive competition and get these legally-sole-provider-in-the-region companies to offer improved service.
DirecTV forced cable companies to up their HD offerings by making over a hundred channels HD in one go after launching some new satellites. Before that, none of the cable MSOs would bother. We need a similar antagonist in the ISP space.
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Band together with your neighbors and share a fiber through wireless links (or more fiber if it is possible to get digging permits). It is a bother, but it is pretty much your only chance. It tends to require a fairly tight knit community to work well, but in some cases it manages to bring the community together.
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They may need to restart the plan that worked for the phone system. Take that unbridled greed and focus it in a certain direction. Grant them a monopoly (greed) if and only if they provide service to every residence (focus). In addition a law could demand sharing of physical infrastructure (which came about in the US after the monopoly was dismantled). Now it won't be like the phone system because the current political undercurrent won't abide fee structures for poor residents and the like, so it would
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Too bad satellite can't compete in broadband Internet services like cable. :(
We all know what axis ISPs will move along. (Score:2)
Meanwhile, I'm hoping Google Fiber, FIOS, and other fast optical options scare more ISPs into action along both price and speed axes.
Why would they move along an axis that significantly reduces profits or increases costs, when they can continue to throw legal caltrops under the wheels of progress [slashdot.org]?
There's room for argument over how expensive it would be to buy more backhaul capacity or reduce subscription fees, but there's little doubt that buying utility commissions and legislators is a lot cheaper.
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when they can continue to throw legal caltrops under the wheels of progress?
Riiiight. Because wanting a competitor to have to abide by the same rules and regulations as the rest of the industry is "legal caltrops?"
Why is it so much to ask that the playing field be level? That's all AT&T was asking for. Why should Google be exempt?
And don't get me wrong, I'm sure that AT&T isn't above pulling something from their bag of Dirty Tricks(tm) but that's not what's happening here.
1 Gbps for 100m only (Score:5, Informative)
OK. So long as G.fast is an improvement over what they're using now, that's a good thing. But until/unless I can get 1 gbps at my desktop, I don't think they should be allowed to advertise it as "Gigabit Internet."
This is the typical phone company thing... "buy Internet service from us!" How fast will it be at my house? "Um, we have no idea!"
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"In order to determine speed to your residence, please enter your address and phone number so that we can contact you with high pressure salespeople at inconvenient times."
Stupid headline. (Score:5, Insightful)
"1 Gb/s over copper" is something that's existed for a looong time.
1 Gb/s over a single crap twisted pair copper on the other hand...
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It's not even true "1Gb/s" as they would have you believe. It's notional 500Mb/s down, 500Mb/s up, only on the order of 100m. Considering AT&T says their nodes are more like 300m away, that's still a lot of infrastructure to build out.
Until that competition from Google or FiOS comes to town, you can bet that the local C-men will continue to have nicely padded wallets.
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1 Gb/s over a single crap twisted pair copper on the other hand...
I'm willing to pay extra for special monstrous wires so that the data has more warmth and power.
Re:Stupid headline. (Score:5, Funny)
Hmm... Are you willing to pay some 3 orders of magnitude more for 4 non-crap twsited pairs made of pure* 99,99999999999678774% copper, plus only the finest nylon money can buy from a factory in China, the finest gold plating in the world and a RJ-45 connector, crimped to perfection by Japanese crimping masters, with an unbreakable tab. Plus, an engineer** will personally test the cable and hand-paint arrows on it so that you know in which direction the data flows better, allowing you to experience more of your audiovisual library than you thought possible. We'll also throw in free shipping if you live in the US. If you're really lucky, your cable works just as well in either direction, so it's like playing the lottery, only better! ***
http://www.amazon.com/Denon-AKDL1-Dedicated-Cable-Version/dp/B000I1X6PM [amazon.com]
* Purity may vary between 98,0% and 100%
** Is not guaranteed to be an electrotechnical engineer. May be some schmo who draws nice arrows, under supervision from a civil engineer or a robot who has been taught to draw arrows and is supervised by the janitor who was taught to press a red button in the event of a breach of Asimov's laws of robotics.
*** Purchasing this cable is nothing like playing the lottery, playing the lottery gives you an tiny chance of something good coming out of your investment.
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Laugh all you want, but it is a very pretty cable.
And you didn't even mention the vibration resistance!
In Soviet Russia, Copper Steels YOU! (Score:2)
Now, my Internet link is a Cat-5 FTP hanging on a steel cable. If some day the thieves will cut it off (which is quite strange since the territory is guarded), I'll install a P-274 Soviet Military Field Phone Cable. It's dirt cheap, strong as hell and has inseparable copper and steel braids. No scrap traders buy it.
Unless you're in North America (Score:1)
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100 Meter limit (Score:2)
My ISP will get this around 2030 (Score:2)
My telecom just rolled out 40Mbit service, about 10 years after Comcast did the same. I don't expect to see this any time soon unless Comcast uses it (they're Fiber-to-the-Neighborhood and then copper, so it's possible). I still won't do business with Comcast, even if I can basically make pricing a wash with bundling. I also could get a DirecTV bundle but giving up DISH would be hard, plus I don't give a rip about sports, which is kind of the focus of DirecTV.
"scare more ISPs into action " (Score:1)
Oh, it will, but not in the way you want.
What is the point? (Score:2)
Even as current tech slowly inches faster, our caps are going down.. So we get 1g to the house which is cool, but use our monthly allocation of data even faster, which is not cool.
The real problem (Score:2)
Prior to divestiture, AT&T would replace the copper loop between the CO and home every 25 years. Post divestiture, SBC ( Masquerading as AT&T ) will not replace copper until it rots into the ground. When it does get around to replacing it, the loop runs to an RT or equivalent instead of the CO. One of the biggest excuses for the substantial increases in your phone bill was for maintenance of the local loop. They have had more than adequate time to replace copper with fiber, but have chosen to pocke
Stupid naming (Score:1)
Why don't they call it Gigabit DSL? Now it's G.fast. Before it was "Very high speed" DSL. What's next? G.super-mega-ultra-fast?
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G.fast is faster than VDSL2, but this 1 Gbps to the subscriber is very unrealistic. 1 Gbps speeds will only work for customers ultra close to the wiring closet.
But let's face it, even 200-300 Mbps is ultra fast internet (copper or not).
35Mbps down, 3Mbps up from GVT in Brazil already here. In my case, I couldn't get a stable connection with one modem they supply, had to get the better modem, at about 400 meters external cable run plus another 100 meters internal cabling, in this distance, G.fast might pump
"Vectoring" is about canceling crosstalk. (Score:2)
Crosstalk alone I would think would be an issue.
Yes, it is. The standard is largely about canceling crosstalk. (Look for "vectoring" in TFA.)
Without the standard's crosstalk cancellation feature, but with everything else according to the standard, the speed drops by a factor of five.
200Mbps over these short hauls is not to sneeze at. But it's not such a big deal, either.
Re: (Score:2)
I just cannot understand you. If you cannot operate your v.34 because of fax crosstalk from other line, then your wiring is seriously flawed, and your network guy should be disciplined, be it standard phone line or VoIP line. In special cases, I routed the telco line via modem to local PBX so nothing could interfere v.34.
The second cause for terrible torture and slow execution of network guys is a VoIP itself. My work requires use of v.34 modem in some extraordinary circumstances once an year or so. And it