Re: pppoeconf / Verizon DSL
In article <[🔎] 380-220081619184825270@M2W034.mail2web.com> you wrote:
> > I've been using Debian with dial-up for about 8 years and it's getting
> > pretty slow, so I thought I would try DSL. The problem is I have
> > absolutely no understanding of how DSL works. If I could get a
> > connection I don't even understand how the browsers, etc. know how to
> > use it. And this is after reading the docs, searching Google and the
> > Debian list, etc. Is there a good step by step guide somewhere?
>
> there are several "versions of DSL". The most common uses what is known as
> "discrete multitone modulation". The spectrum of the "cable" is divided
> into frequency bins. The bottom-most bin is used for POTS (Plain old
> telephone service). The upper bins are divided into several hundred
> channels, some of which are used for transmitting-"Upstream" and the rest
> are used for receiving-"Downstream". Regularly the downstream channels
> exceed the upstream channels giving rise to the term Asymmetric in ADSL.
> In each bin the spectrum is used much like that of a conventional modem.
> However prior to the transmission of actual data the DSL modem at the
> customer's premesis and that at the ISP (usually called a DSLAM) exchange
> signals in an attempt to maximize the bit rate in each bin (independently).
> Once the bit rate is established control is passed to a higher level
> protocol, usually the Point-to Point protocol (PPP) which provides the
> connectivity and in some cases authentication (logon) and info exchange
> (e.g. DNS, default router). Hope this helps.
This is interesting. I just wish I was a little closer to getting
everything configured correctly.
Thank you and thanks to everyone else that has tried to help.
Larry
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