nanog mailing list archives
Re: People who purchase unproven technologies...DSL
From: Daniel Senie <dts () senie com>
Date: Mon, 14 May 2001 15:18:26 -0400
At 10:25 AM 5/14/01, Greg Maxwell wrote:
On Mon, 14 May 2001, Shawn McMahon wrote: > On Mon, May 14, 2001 at 07:53:50AM -0400, mike harrison wrote: > >> > > Why would anyone purchase dsl to run their business on. Let me guess, the> > > price was right. > > > > I would call it a proven technology, but a very poor business model. > > And xDSL is definately not for mission critical operations. > > x is sometimes "H". > > Are you sure you want to say HDSL is not for mission-critical operations? Setting a trap here? xDSL, where x = S/H, as a physical carrier (and set of modulation schemes) is a tried and proven technoligy, often used today by telcos to carry T1s over longer spans with less need for repeating equipment.
Heh, I've had Verizon linemen yank HDSL-implemented T1 circuits because there was no dialtone. The ADSL from Verizon might actually be more reliable than their T1 service in areas where there's a shortage of pairs. After all, there WILL be a dialtone (assuming the ADSL is piggy-backing on a voice circuit) and the odds are they're not going to pull the circuit.
The xDSL standards folks probably should sacrifice a bit of bandwidth at the low end of the spectrum to generate an appropriate audio tone, letting the line workers know that the circuit IS in use. Clearly the absence of such has cost many folks a great deal of aggrevation, lost revenues, etc.
----------------------------------------------------------------- Daniel Senie dts () senie com Amaranth Networks Inc. http://www.amaranth.com
Current thread:
- DSL line stealing when there is no tone - DANGER - Operational content, (continued)
- DSL line stealing when there is no tone - DANGER - Operational content Alex Bligh (May 14)
- Re: DSL line stealing when there is no tone - DANGER - Operational content Steve Schaefer (May 17)
- Re: DSL line stealing when there is no tone - DANGER - Operational content Greg Maxwell (May 17)
- Re: DSL line stealing when there is no tone - DANGER - Operational content Alex Bligh (May 17)
- Re: DSL line stealing when there is no tone - DANGER - Operational content Daniel Senie (May 17)
- Re: DSL line stealing when there is no tone - DANGER - Operational content John Fraizer (May 17)
- Re: People who purchase unproven technologies to support their Business, and whine about it. RE: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS Bill Woodcock (May 14)
- Re: People who purchase unproven technologies...DSL mike harrison (May 14)
- Re: People who purchase unproven technologies...DSL Shawn McMahon (May 14)
- Re: People who purchase unproven technologies...DSL Greg Maxwell (May 14)
- Re: People who purchase unproven technologies...DSL Daniel Senie (May 14)
- Re: People who purchase unproven technologies...DSL Wojtek Zlobicki (May 14)
- Re: People who purchase unproven technologies...DSL Alex Rubenstein (May 14)
- Re: People who purchase unproven technologies...DSL Dan Hollis (May 14)
- Re: People who purchase unproven technologies to support their Business, and whine about it. RE: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS Wojtek Zlobicki (May 14)
- RE: People who purchase unproven technologies to support their Business, and whine about it. RE: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS Joe Marr (May 14)
- Re: People who purchase unproven technologies to support their Business, and whine about it. RE: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS John Payne (May 14)
- Re: People who purchase unproven technologies to support their Business, and whine about it. RE: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS Adam McKenna (May 14)
- Re: People who purchase unproven technologies to support their Business, and whine about it. RE: To CAIS Engineers - WAKE UP AND bmanning (May 14)
- Re: People who purchase unproven technologies to support their Business, and whine about it. RE: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS Shawn McMahon (May 14)
- Re: People who purchase unproven technologies to support their Business, and whine about it. RE: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS Wojtek Zlobicki (May 15)