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story category Is VDSL2 Enough?
Bellsouth, SBC hope so
(old news - 02:03PM Wednesday Aug 24 2005)
tags: dsl · bandwidth
An Ikanos marketing Exec makes the case for VDSL2 at Converge Digest: "Greater than 80 percent of remote terminals worldwide are within 5000 feet of the customer, and at that range, VDSL2 can offer up to 25Mbps downstream and 5Mbps upstream, delivering enough bandwidth to support 2 HDTVs, videoconferencing, VoIP, and higher-speed data services." That's the plan for both BellSouth and SBC, who are not thrilled by the cost of running fiber straight to the home. Skeptics however wonder about a narrow fit (particularly for multiple HD streams). The article offers both downstream and upstream distance/speed charts for those unfamiliar with VDSL2.

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Forums » Is VDSL2 Enough?
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Post a:

darthur2000

join:2002-01-02
Middletown, CT
clubs:

Lovely

With my current distance, VDSL2 will offer less bandwidth for everything then Comc*** does just for my internet. Gee, that's really going to get me interested in switching. Good job SBC!

King P
Don't blame me. I voted for Ron Paul
Premium
join:2004-11-17
Inman, SC

Re: Lovely

man, I sure do wish my remote terminal was within 5,000 feet of me. It is 13,000 feet away and so is the CO....either way I am screwed...

maartena
Nice'n Round.
Premium
join:2002-05-10
Orange, CA
·RoadRunner Cable

Re: Lovely

I live 11000 feet from the CO, in the middle of a city. That does not mean however that I can't get VDSL. They will run fiber to the neighbourhoods and those units are a lot closer to you. All the CO's are already fibered up.

Their plan is not to bring fiber to the home like verizon, but fiber to the block, and the last little bit will be copper.
--
And i'm right. I'm always right, but this time I'm a little more right then I usually am.

CoxCable4
Temp banned from BBR more then anyone

join:2002-10-02
PwnZone

no vdsl here

urban areas ironically stick everyone in one big building in the middle of nowhere so nobody is that close...
hoyleysox

join:2003-11-07
Long Beach, CA

Right on

I'll bet the ILECs hope they don't have to share or this technology will never get off the ground.

justbits
More fiber than ATT can handle
Premium
join:2003-01-08
Chicago, IL
·AT&T Midwest
·AT&T Yahoo

Re: Right on

Take a step back and look at near past.
SBC's Project "Pronto" was supposed to deploy lots of Remote Terminals. It stopped when they were told they had to share the RTs with CLECs.

SBC's Project Lightspeed is basically a restart of Pronto after legislation passed saying ILECs didn't need to share RTs with CLECs. Besides that, even if they did have to share, there are so few CLECs in most markets today that they probably aren't as worried about CLECs anymore... especially now that they can charge CLECs as much as they want to share the RTs now.

LoneGreyWolf
Premium
join:2002-09-09
Bath, NY
clubs:

Something else I will probably never see...

As the subject says. Yet another technology rural people like me will never see. I have a bright idea... how about the equipment that they replace with fiber and what not be used as again to give rural people a chance at broadband? It's not like they have to buy expensive equipment all over agin since they are only re-using what they already have.
Estragon

join:2003-06-20
Greenville, NH

Re: Something else I will probably never see...

Right!

It's really great that VDSL can deliver 25Mbps within 5000 feet of an RT. So why is Verizon only delivering 26.4Kbps to me? I'm only 1000 feet from the RT.
mishaq
Premium
join:2004-01-24
Richardson, TX
clubs:

VDSL...

Another potential problem that DSL has a lot is the inside wiring of the household. Many homes we live in were built in the 50's, and the wiring wasn't done to modern specs, and has had time to degrade over 50 years since it's simply 2 strands of thin copper. So even if you're 1000 feet from the central office or a RT doesn't exactly mean one will get the exact promised speeds. 24/26 gauge copper is 100 year old technology, Verizon's got the right Idea, I hope SBC and Bellsouth (or perhaps just SBC when they buy bellsouth ) get hit in the head and see the light, of fiber!
--
Damn you FCC!

lml2000
Whazzup

join:2000-08-17
Los Angeles, CA
·RoadRunner Cable

Re: VDSL...

U got it right. Unless the telco is willing to upgrade, or subsidize the customers inside wiring, which as u say, is often 30-50 yrs old & in need of such an upgrade, the telco's push to deliver video & HSD to compete with cable, IMHO, will not go very far. It's an end-to-end solution. So, all the investment in the world that does not go all the way to the customer's gateway (i.e. modem, ONU, router, etc.) will not yield the expected ROI envisioned. I don't believe that telcos today get this.

I'm roughly 6,100 feet from the SBC RT that serves my 'hood, so this VDSL2 means nada unless SBC pushes the fiber to the nearby cross-connect about 600 ft away . . . & even then, their gonna have to make me an offer I can't refuse w/respect to updating all the copper wiring inside my house . . . b/c I know w/o CAT-5 or CAT-6, SBC is just not gonna be able to deliver on their "promise."
bogey780

join:2004-03-19
Covington, LA

Re: VDSL...

All you have to do is replace a single wire to the modem and place a noth filter on the rest from the outside.

lml2000
Whazzup

join:2000-08-17
Los Angeles, CA
·RoadRunner Cable

Re: VDSL...

thanks for u'r reply. as far as replacing wire, ez'r said than done. completely understand, but techs who come to my house prefer to rely upon existing wiring, id one pair they can clear of problems, isolate it, just as u have suggested.

Notwitstanding, if SBC wishes to sell me video & myriad of other services delivered to a modem or router, i require ny new CAT-5 be laid to that modem or router, @ a minimum, to ensure me high reliability of that connection, particularly when it rains. Wiring in my house, is old, prone to cross-overs whenever it rains . . . & long after. It is certainly no physical layer w/which to deliver 21st century services.

U'r entitled to u'r opinion, but it's I, the customer, who will decide which carrier I will choose to provide most or all of my services @ some pt in the future. W/o improved inside wiring, I would not be amenable to video services from SBC.

But 1st things 1st. Right now, I'm 6,100 ft from the RT, the nearest fiber node, so until SBC pushes the fiber closer, this discussion in not ripe.
radougherty

join:1999-07-23
Austin, TX
·RoadRunner Cable
·AT&T Southwest

For HD customers this stinks

So I can get 2 HD streams with this new wiz band service, then count me out. With my DirecTV HD Tivo I can be recording two streams just with that one box while watching another HD program with my TV's HD tuner. Think I'll sticking with the service I have now thank you very much SBC, not!

barqsdrinker
What Can I Photograph Today?
Premium
join:2001-02-26
Apo, AE
clubs:

Re: For HD customers this stinks

said by radougherty See Profile :

So I can get 2 HD streams with this new wiz band service, then count me out. With my DirecTV HD Tivo I can be recording two streams just with that one box while watching another HD program with my TV's HD tuner. Think I'll sticking with the service I have now thank you very much SBC, not!
Totally agree. Two HD Tivos along with one standalone HD reciever. I count 5 streams. 24Meg isn't going to cut it.
--
Thanks for reading!
jcnnghm

join:2001-08-29
Severna Park, MD

Re: For HD customers this stinks

Compare that to the 622mbps down, 155mbps up that the FiOS fiber is capable of to see how truly pathetic that offering really is.

It is possible to support a 30mbps net connection, stream ~66 high def programs and have over 10 VoIP lines going at once without saturating the line. And even that assumes that they don't take advantage of the built in RF video overlay frequency, or employ some crazy multicasting techniques to allow even more simultaneous channels.

starstuff
Fly By Wire
Premium
join:2001-12-05
Mcallen, TX

said by barqsdrinker See Profile :

said by radougherty See Profile :

So I can get 2 HD streams with this new wiz band service, then count me out. With my DirecTV HD Tivo I can be recording two streams just with that one box while watching another HD program with my TV's HD tuner. Think I'll sticking with the service I have now thank you very much SBC, not!
Totally agree. Two HD Tivos along with one standalone HD reciever. I count 5 streams. 24Meg isn't going to cut it.
... and when you take into consideration the interference from HAMs, atmospheric, electrical and other forms of MF/HF EMI VDSL sounds even worse.

anonME

If that concerns you, maybe you should think of cutting off all your service cause your watch too much TV.
radougherty

join:1999-07-23
Austin, TX
·RoadRunner Cable
·AT&T Southwest

Re: For HD customers this stinks

said by anonME :

If that concerns you, maybe you should think of cutting off all your service cause your watch too much TV.
So a family is to be limited to the number of channels that they can watch at one time so SBC can make thier plan work?

djrobx

join:2000-05-31
Valencia, CA
·AT&T U-Verse
·AT&T CallVantage
·Time Warner VOIP
·RoadRunner Cable
·DSL EXTREME

VDSL will be enough for internet only

and even then, only for another few years.

It is a VERY narrow fit. So narrow that I am seriously concerned that it will be outdated before it's ever put into place. Is that 25mbps running on the same ATM as their existing DSL services, that carries an 18% overhead? If so there's only around 20mbps of real usable space. They've stated that 9mbps is needed for HDTV. That leaves just 2mbps for internet and other services.

If you want to do TV or otherwise build a modern content delivery platform, get fiber and get it over with. Verizon will be laughing all the way to the bank.
--
\\ROB - a part of the SCB local network

Matt
You can't fix stupid
Premium
join:2003-07-20
Jamestown, NC
·North State Commun..
·Corporate Colocation

Re: VDSL will be enough for internet only

said by djrobx See Profile :

Verizon will be laughing all the way to the bank.
No, they won't. They don't compete with Bellsouth in the ILEC arena.

I agree Bellsouth and SBC need to quit penny pinching and just run FTTH.

Phoenix2088

join:2002-12-04
Strongsville, OH
clubs:

Re: VDSL will be enough for internet only

They will deploy FTTH once their failed roll-out of VDSL is complete.
radougherty

join:1999-07-23
Austin, TX

Re: VDSL will be enough for internet only

I wish I could find the old link but there was a quote from the SBC VP in charge of this. He basically said if he guess wrong on this no big deal, they were only spending $4,000,000,00.00 on this, not a lot of money in SBC's over all picture.

Phoenix2088

join:2002-12-04
Strongsville, OH
clubs:

Re: VDSL will be enough for internet only

I think you're referring to this - »SBC's 4 Billion Dollar Bet.
radougherty

join:1999-07-23
Austin, TX
·RoadRunner Cable
·AT&T Southwest

Re: VDSL will be enough for internet only

said by Phoenix2088 See Profile :

I think you're referring to this - »SBC's 4 Billion Dollar Bet.
Yep, that was it. Thanks!

juilinsandar
Texas Gooner
Premium
join:2000-07-17
San Benito, TX
·AT&T DSL Service

said by djrobx See Profile :

and even then, only for another few years.

It is a VERY narrow fit. So narrow that I am seriously concerned that it will be outdated before it's ever put into place. Is that 25mbps running on the same ATM as their existing DSL services, that carries an 18% overhead? If so there's only around 20mbps of real usable space. They've stated that 9mbps is needed for HDTV. That leaves just 2mbps for internet and other services.

If you want to do TV or otherwise build a modern content delivery platform, get fiber and get it over with. Verizon will be laughing all the way to the bank.
The sad thing is that Verizon isn't competing directly wth SBC, at least not in my area which is served by Time Warner and SBC. If they were, I'd choose the phat pipe of FTTH rather than the midsized pipe of vdsl2.

Evil_Icon
Digital Pimp

join:2003-02-24
Bossier City, LA
·Suddenlink
·Comcast

25000/5000 please !

I will be tossing Roadrunner and going Bellsouth if the VDSL2 if offerd in my neighborhood.Well it depends on the price too.
25000/5000 = kickass
--
More upload please!

Matt
You can't fix stupid
Premium
join:2003-07-20
Jamestown, NC
·North State Commun..
·Corporate Colocation

Re: 25000/5000 please !

said by Evil_Icon See Profile :

I will be tossing Roadrunner and going Bellsouth if the VDSL2 if offerd in my neighborhood.Well it depends on the price too.
25000/5000 = kickass
25Mbps - 9Mbps for 1st HD Channel = 16Mbps
16Mbps - 9Mbps for 2nd HD Channel = 5Mbps

Once you factor in various protocol overhead, you'll be lucky to see 4.5Mbps left for the internet.

I honestly don't know WTF Bellsouth is thinking.

juilinsandar
Texas Gooner
Premium
join:2000-07-17
San Benito, TX

Re: 25000/5000 please !

But how many people are actually subscribing to HD programming now? I'm still holding out for a good reason to move to HD. Right now my local channels aren't even broadcasting in HD.

starstuff
Fly By Wire
Premium
join:2001-12-05
Mcallen, TX

said by Evil_Icon See Profile :

I will be tossing Roadrunner and going Bellsouth if the VDSL2 if offerd in my neighborhood.Well it depends on the price too.
25000/5000 = kickass
The 'official' internet speed for project light speed is 6000/1000.

owenhome
keeper of the magic blue smoke
Premium
join:2002-07-13
Wichita Falls, TX
·RoadRunner Cable
·AT&T Southwest

What about every body else?

It does absolutely nothing for customers like me who are not on RT's (with no hope of ever being on one either). At my 12k' distance, it won't be any faster.

So we just get left out in the cold I guess.
--
Never argue with a fool, people might not know the difference.

Matt
You can't fix stupid
Premium
join:2003-07-20
Jamestown, NC

Possible?

Is it possible for Bellsouth or SBC to provision one VDSL2 circuit for your TV channels and another, completely separate 25Mbps channel (pair?) for your data?

Or would you have to have two pairs running to your house?

Phoenix2088

join:2002-12-04
Strongsville, OH
clubs:

No IPTV

IPTV won't work with 25 mbit VDSL, plain and simple. Not enough bandwidth to push all these services through.
B777300

join:2002-01-02

Re: No IPTV

IPTV Blows, Clear and simple.

Too much overhead.. (ethernet\ATM.. IP.. and maybe even TCP\UDP)

I like coax.. =]
--
Can you say fiber optics?
Cod

join:2000-07-05
Greensboro, NC

This DSLreports article is incorrect.

This article is wrong.

VDSL2 offers speeds of up to 100 MB, not 25 MB as stated. Look at the graphic charts that were posted. Someone make an error.

ADSL2+ is the technology that offers 25mb per bonded pairs.

See 6 replies to this post

XBL2009
------

join:2001-01-03
Chicago, IL

100 megabit fiber

Why waste time and money on this crap when they could just invest in fiber that will last the next 100 years.
bmn
? ? ?
Premium,ExMod 2003-06
join:2001-03-15
hiatus
·Packet8
·Cox HSI

Re: 100 megabit fiber

Because, in the short term, VDSL will be profitable... Corporate America has become the hostage of investors who are more concerned with short-term profitability instead of long-term growth and sustainable profits...

If companies were able to go long term, fibre would be where they would be going...
theeinstein
Premium
join:2003-07-31
Fernandina Beach, FL

I can hear it now!

Hey could you turn off the TV I am trying to download a movie!
hahahah

:D:D:D:D

starstuff
Fly By Wire
Premium
join:2001-12-05
Mcallen, TX

Re: I can hear it now!

said by theeinstein See Profile :

Hey could you turn off the TV I am trying to download a movie!
hahahah

:D:D:D:D
...or I lost the weather channel because of the thunderstorms

Unregistered user



Why IPTV?

Perhaps someone can explain this to me. What's the point of offering, basically, cable TV over IP? I can see the logic of doing it this way if the customer gets to choose whatever video stream they can find on the Net. In fact, that makes pretty good sense, assuming the originating provider has the bandwidth on their end, and multicasting is set up and working well so you don't have tons of duplicate streams. However, if the telco/DSL provider is basically feeding programming from a headend, so there are a finite number of channels to be had, then why not just broadcast them as cable TV does, or team up with a satellite provider? Sure, IPTV allows things like VoD, but I can see no good reason to stream a feed of CNN from what's essentially a cable headend using IPTV.

And they think they can offer two HDTV feeds? That's enough for two HDTV sets in the house, or one and a DVR. What if I want to watch an HD program in the den, someone else wants to watch one in a bedroom, and I also have my DVR recording a third?

And they think 25/5 is enough? For now, it's fine, but when I got DSL a little over five years ago, 1.5/128 was fast, and now I have 6/768 on Comcast's lower tier. Unless the telcos can get this completely rolled out in the next year, they may never recoup their costs as speeds continue to increase.

Who's the genius who thinks this is a good idea? It's idiotic on so many levels. Laying fiber will cost more, but sometimes doing things on the cheap only gets you headaches down the road. But since I have no love lost for either BellSouth or SBC, I won't feel sorry for them when they spend so much money for so little return.

thisismyname

join:2004-07-26
00000

Unless they build a RT within 3000ft......

Currently my closes distance to the CO is 22,000ft with no RT near me the best they can do is 192/128Kbps to my house.:(
--
Freedom of expression should not be hampered by the unwillingness of others to accept things.-NinjaMaster

anonME



Gas strategy

With the way the price of gas is going Bellsouth and SBC are betting in a few years everyone will have moved back into towns and cities within 2 to 3K feet of the CO. Meanwhile Verizon will have fiber running out to where no one can afford to live anymore.

thongsai

join:2002-07-04
Santa Rosa, CA

Re: Gas strategy

umm.. gas is a limited resource.. it will always go higher until there is none left to sell.. technology on the other gets better and cheaper.. think of ur first computer.. and the price of todays computer.. add the normal inflation to the formula and u can see that it got really cheaper than it was.
--
»thongsai-roms.shorturl.com/

anonME

Re: Gas strategy

Well only till someone figures out how transport you and the things you need along the internet. I'm sure Google's on it.
GhostDoggy

join:2005-05-11
Duluth, GA

I was under a different impression, lol

I thought VDSL2 was capable of 100 Mbps symmetric out to 12,000 feet.
B777300

join:2002-01-02

Re: I was under a different impression, lol

said by GhostDoggy See Profile :

I thought VDSL2 was capable of 100 Mbps symmetric out to 12,000 feet.
When using 2 pairs.
--
Can you say fiber optics?
Forums » Is VDSL2 Enough?


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