full-duplex 802.11?

[Michael Scholten]

I've successfully put two Lucent cards into a desktop using two ISA->PCMCIA
adapters and, using Linux drivers setting the cards to different channels in
Adhock Demo Mode (rather than IBSS or whatever the newer Adhock mode is)
without a problem.  The machine is configured as a relay point though, with
both antenna pointing in different directions.  (I tested without external
antenna first and it worked fine then too.)

I tried using the IBSS mode and found that even though I attempted to
specify a channel the card automatically switched over to the other cards
frequency.  I also noticed this "feature" by setting a frequency in a
notebook and bringing the machine close to a strong signal on a different
frequency - it simply "switched over".

-----Original Message-----
From: wireless-admin at lists.samba.org
[mailto:wireless-admin at lists.samba.org]On Behalf Of Brett Lymn
Sent: Tuesday, 16 July 2002 12:21 PM
To: Bruce Janson
Cc: wireless at lists.samba.org
Subject: Re: full-duplex 802.11?


On Tue, Jul 16, 2002 at 12:32:42PM +1000, Bruce Janson wrote:
>     ...
>     That was my understanding but I did not (and still do not) know
> whether the current wireless devices allow selection of two channels
> sufficiently far apart to avoid that overlap.  Moreover, given that the
> pairs of colocated cards would be only "bus-slots" apart within the PC
> there might be other shielding-related problems.
>

I have talked to someone that has put two wireless lan cards into a
laptop, from what he was saying he had no problems with the set up.  I
was surprised he could do it physically but he told me he had a
wavelan card and a cisco card (the cisco does not have the lump at the
end) so they physically fitted into the pcmcia slots.

Given this, I would not totally discount the idea.  Perhaps instead of
going full duplex you could just trunk the interfaces together and let
the trunk driver load balance the packets for you?

--
Brett Lymn