Re: PPPoE and PPPoA as Modem Driver
Re: PPPoE and PPPoA as Modem Driver
- Subject: Re: PPPoE and PPPoA as Modem Driver
- From: email@hidden
- Date: Thu, 31 Jan 2002 11:02:22 -0500
>
TPI to DLPI conversion is actually not that hard. Remember that
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you're talking connection-oriented TPI out the top and connectionless
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DLPI out the bottom, so you don't need pass through the connection
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semantics. In fact, if you look at the list of TPI messages that you
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might get from above, the list you have to handle is pretty small,
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and many of them are degenerate cases.
Quinn ... it might not be hard to someone who understands TPI and DLPI.
However, because of the libraries provided by Apple we were able to do
the complete ethernet driver without knowing a think about DLPI. The PDF
file about DLPI is 180 pages long. I have no idea what a typical DLPI
"session" from the loading of a driver through a simple data transfer
using "ping" would look like. Therefore, the task of TPI to DLPI seems
very overwhelming to me. If you could provide a simple explanatation of
exactly what DLPI functionality we need to use in converting from TPI,
that would help a whole bunch.
Thanks for the list of TPI messages, that is very helpful as well.
-Chris