From owner-freebsd-hackers  Wed Jun  6 12:12:53 2001
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To: Soren Kristensen <soren@soekris.com>
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From: "Louis A. Mamakos" <louie@TransSys.COM>
Subject: Re: Making support for ADSL interface ?? 
References: <3B1E703D.11D7690F@soekris.com> 
In-reply-to: Your message of "Wed, 06 Jun 2001 11:02:37 PDT."
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> How good is FreeBSD current structures for running ADSL, I'm thinking a=
bout the
> ATM support already present, and probably using netgraph ? I would need=
 support
> for the most common protocols used worldwide, t.ex PPPoATM, IPoATM....

You'd also need to support PPPoE, which on most ADSL systems appears
as PPP on Ethernet as RFC-1490 bridged encapsulation of the ethernet
frames in AAL5 ATM cells.  It's unclear that this is worth doing at
the ATM level since the CPE devices with an Ethernet are fairly
inexpensive; the existing Ethernet interface might be the most cost
effective.

There's also limited standardization on management interfaces for ADSL
CPE equipment.  It's been a couple of years since I've been involved
with the ADSL forum, but there were proposes to have some management
channel to the CPE device (perhaps using ILMI?  I don't recall). =


Louis Mamakos


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