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Date:      Wed, 24 Dec 2008 17:14:14 +0000 (GMT)
From:      Robert Watson <rwatson@FreeBSD.org>
To:        Bruce Simpson <bms@incunabulum.net>
Cc:        Qing Li <qingli@freebsd.org>, Hartmut Brandt <hartmut.brandt@dlr.de>, freebsd-current@freebsd.org, "Li, Qing" <qing.li@bluecoat.com>, freebsd-net@freebsd.org
Subject:   Re: NATM hardware available
Message-ID:  <alpine.BSF.1.10.0812241712520.69270@fledge.watson.org>
In-Reply-To: <495246C9.9090305@incunabulum.net>
References:  <55f001c9639d$875f14ec$7202020a@internal.cacheflow.com> <4950F770.3090700@dlr.de> <B583FBF374231F4A89607B4D08578A4302A8BCC4@bcs-mail03.internal.cacheflow.com> <495165D8.2070409@dlr.de> <495246C9.9090305@incunabulum.net>

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On Wed, 24 Dec 2008, Bruce Simpson wrote:

> Hartmut Brandt wrote:
>
>> In any case there is still an Todo on my side: the routing information for 
>> NETNATM is currently lost somewhere between L2 and L3 :-) I guess I come 
>> back to you in the new year to fix this issue... Have to fetch my ATM 
>> equipment from the corner where it is collecting dust to setup a testbed.
>
> Guys:
>
> Native NATM support would be nice, because it lets FreeBSD be used as a 
> direct ADSL endpoint without an external ADSL router.
>
> I have a pair of ATM25 cards, an ATM25 crossover, and an ATM25-to-ADSL G.DMT 
> modem bagged up ready to ship to someone who has the time and motivation to 
> work on NATM.
>
> Also: I did have an ATM25 capable switch which I left at ICSI in Berkeley, I 
> don't know where it is at the moment due to people movements.

Do we have any of the necessary software parts to do simulated ATM hardware 
similar to what if_tap does for Ethernet?  Using the VIMAGE stuff and virtual 
ATM hardware might open up the door to a more accessible development and test 
environment.  I did the NATM locking work essentially "blind" due to a lack of 
test environment locally, which seemed to work out, but a software test system 
would go a long way.

Robert N M Watson
Computer Laboratory
University of Cambridge



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