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g6phf

join:2002-11-05
la14yw

asynchronous or asymetrical?

From the ISP planet article by Patricia Fusco:-

"First, let's review the nomenclature for asynchronous digital subscriber line standards. "Study Group 15," a task force within the International Telecommunication Union (ITU), is responsible for developing ADSL standards. The group has categorized projects under various designations, such as G.dmt, G.lite, G.voice, and G.bond. "

So when did the A in ADSL stand for asynchronous?
It should be asymmetrical surely?

Mike


NeoGeo64
Premium
join:2001-09-22
Leesburg, GA

I always read about new broadband technology and it's sad, really. I mean, it's a good thing people come up with new ideas, but the market'll never see em.

I have BellSouth DSL, and I've had it for a year and it rocks.

I think providers should look to getting alot more customers available to get DSL before they go investing money in new broadband technologies.

Just my $0.02



Just some info for y

@banetworkdata.com

If you live in the Verizon footprint and don't have the option of Cable and are to far away from a CO to get DSL, you are in luck.

Verizon is rolling out a new technology called PARTs (Pack At Remote Terminal). Basically what this will do is put mini ATM (ATM is the Layer 2 protocol that enables DSL) switches in CEVs... out side of the COs and closer to the customers. You will no longer be restricted by how close you are to the CO, now you have to worry about haw close you are to the CEV, which should be SIGNIFICANTLY closer to you.

The first units are in place in selected parts of New England and the DC area. I don't know when this will be available for retail service but, it is a HOT technology for us so, hopefully you will be able to get broadband soon.

Take care!



some info

@banetworkdata.com

reply to g6phf
It is asynchronous.

You upload speeds are not the same rate as your download speeds. They are not in "sync", hence the name.


rekoil

join:2000-10-04
Atlanta, GA

reply to Just some info for y
Yes, but will any other ISPs/DLECs (Covad, et al) have access to these remote terminals? Or will you be forced to use Verizon as your ISP? If so, count me out.

One qualification - if Verizon ever decides to give customers static IPs, the above venom will be substantially neutralized...



djktno

@ucdavis.edu

reply to some info
Asymmetric, actually, at least for the argument you give.

You can pull stuff down faster than you can move data up, which is an asymmetric relation.

"Asynchronous" in digital communication refers to there being no timing requirement for transmission. Sync deals with timing, not measure or capacity.

"Asymmetric", the condition of being not symmetric (obviously), has the Greek root "metros", or measure. The measure of the speeds down and up are not the same.

Trouble is, doing a google search for "asymmetric dsl" or "asynchronous dsl" gets you about an equal number of hits all speaking on the same subject. I'm sticking with my explanation, however.



some info

@banetworkdata.com

reply to rekoil
Yes, all ISPs will be able to buy PARTs circuits.

VZ is not the only ISP that will not sell static IPs. I have Optimum Online and, they will not "sell me" a static IP addy but, they haven't changed mine in the year I have had the service.

How often does your addy change?



some info

@banetworkdata.com

reply to djktno
Your definitions maybe be correct but the defacto, understood definition of ADSL is Asynchronous Digital Subscriber Line, not asymetrical.

I can't speak for Google hits but I can speak for the big players in that services industry. Nobody calls it asymetrical.



DrTCP
Yours truly
Premium,ExMod 1999-04
join:1999-11-09
Round Rock, TX

said by some info:
I can't speak for Google hits but I can speak for the big players in that services industry. Nobody calls it asymetrical.
I think you are confusting A in ADSL with A in ATM. A in ADSL stands for "Asymmetric".

I guess Cisco, Nortel, Qualifies big enough:

»www.cisco.com/univercd/cc/td/doc···pp01.htm
»www.nortelnetworks.com/products/···ary.html

From DSL service providers (Covad, SBC, Verizon):
»www.covad.com/help/glossary.shtml
»www02.sbc.com/DSL_new/content/0,,45,00.html
»www22.verizon.com/wholesale/glos···,00.html

How about the official definition from DSLForum itself:

»www.dslforum.org/PressRoom/DSL_G···523.html
»www.dslforum.org/aboutdsl/faq.html
»www.dsllife.com/tutorial/faq.htm#q01


some info

@banetworkdata.com

"It takes a big man to admit they are wrong. I am not a big man." -Fletch

My apologies, you are correct. You are not only correct, but, you knew why I was wrong. You are a wise man


blah194

join:2002-03-04
Lake Charles, LA

reply to g6phf

You are correct

The A in ADSL stands for asymmetric. In ATM it stands for asynchronous.

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