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Correct. Most dsl "modems" arn't really modems but just routers.
Anywho, I was speaking of REAL "modems".
On Sunday 07 October 2001 01:38 pm, you wrote:
> > It's modulated and demodulated into analog format. Hence
> > MoDem.
>
> Actually, even though DSL and Cable "modems" perform their signaling in the
> RF spectrum, they don't use frequency modulation for the physical
> signaling, so they aren't really modems.
>
> > Im sure the
> > modem does error checking on THAT process, but the tcp/ip
> > error checking is
> > done when the packet is sent up the stack, which happens at
> > the driver level,
> > not the modem level.
>
> Correct. Although some of the new Ethernet cards to TCP/IP CRC checksum
> validation in hardware now, instead of sending it up the stack, alleviating
> this burden on the host CPU.
>
> > I'm sure Stan can describe this process better.
>
> I'd really rather not spend the time necessary to explain DSL or cable
> "Modem" signaling in depth right now... :) Suffice it to say that most DSL
> and cable "modems" are capable of over 10Mb/s of raw signaling rate with
> full CRC. This is not going to cause any OSI Layer 3 (TCP/IP) packet
> latency.
>
> StanTheMan
> TheHardwareFreak
> www.hardwarefreak.devastation.cc
> [EMAIL PROTECTED]
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What, were you expecting something witty?
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