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Re: Adsl - Linux vs. Win9x





http://www.zdnet.com/zdhelp/stories/main/0,5594,2570300-1,00.html


On Sat, 24 Mar 2001, Uri Bruck wrote:

> 
> 
> On Sat, 24 Mar 2001, Ely Levy wrote:
> 
> > No one talked about the v.90 that complitly diffrent issue.
> > a lot related to old phone lines. btw I bet this artical isn't that new.
> It isn't new, I wrote that in my original mail. I know that v.90 is not
> ADSL, my point was, as I wrote in my original mail, and is still quoted
> below, is that back when that was written we were hearnig exactly the same
> complaints we are hearing today, as if supposedly, only in Israel we don't
> get the high speed connectionthat everyone else is , supposedly, getting.
> 
> When that was written, that was considered "high speed" - nowadays, ADSL
> is considered high speed. Different eras, different techonologies, same
> complaints, same amount of realism.
> 
> Thanks
> Uri
> 
> > 
> > 
> > Ely Levy
> > System group
> > Hebrew University 
> > Jerusalem Israel
> > 
> > 
> > 
> > On Sat, 24 Mar 2001, Uri Bruck wrote:
> > 
> > |  
> > | 
> > |  Just to add something here. I've been hearing the story of "only in Israel
> > |  we get such low speed where the rest of the world has great high speed
> > |  internet" for years now. First it was with the 28s, then 33, then 56s
> > |  
> > |  So I think this quote from Jim Seymour (PC magazine), even though it was
> > |  written almost two years ago, is apt:
> > |  
> > |  "
> > |  First, V.90 is not magic, and those legendary 56K connections are as
> > |  elusive as ever. (Actually, of course, they're limited to 53 Kbps onthe
> > |  receiving side, thanksto an irrelevant government regulation limiting 56K
> > |  devices to 53 Kbps. Irrelevant? Sure: Just as I've never seen a 33.6-Kbps
> > |  connection outside a closed-loop test in a lab, I've never seen a 56-Kbps
> > |  connection, nor even a 53-Kbps link, away from the test bench. Welcome to
> > |  the real world.)
> >|  
> > |  My experience with 56K modems--both x2 (3Com/U.S. Robotics) and K56flex
> > |  (Rockwell and the rest of the modem universe)--is that if you get into
> > |  the mid-30s Kbps range, you're doing pretty well. Get into the low-40s
> > |  Kbps range and you're having a Good Modem Day indeed.
> > |  "
> > |  
> > |  ..not only in Israel
> > |  
> > |  and some participants in this thread might like to read a bit what Dvorak
> > |  has to say about lots of small ISPsstateside.
> > |  
> > |  
> > |  
> > |  On Fri, 23 Mar 2001, guy keren wrote:
> > |  
> > |  >
> > |  > for a slight comparison - in 1996, a fiber-optic T1 link to the states
> > |  > cost about 1,000,000$ per year. a satellite link cost around 750,000$.
> > |> at those days you could fit approximately 200 concurrent users on such a
> > |  > link to give them their full bandwidth (of an 28.8kbps modem).
> > |  > these days, you can buy such links at a price of (approximately) 100,000$
> > |  > or 200,000$ a year (i might be wrong by a factorof 2, btw). so the price
> > |  > was reduced by a factor of 5 or 10. at the same time, the bandwidth users
> > |  > take has grown significantly - many business users using frame relay and
> > |  > sifranet links. regular modems download at approx. 40kbps (assuming a
> > | > 57.6kbpsmodem manages to make a connection on at that speed due to
> > |  > various line condition problems). many users use ISDN (64kbps). some use
> > |  > dual isdn (128kbps), and a few use ADSL and cable modems. so you can't put
> > |  > 200 users on a T1 link now - you can put much less then that (probably 100
> > |  > or less, to get a satisfactory speed).
> > |  
> > |  
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> > |  
> > |  
> > 
> 
> 
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