[Server-devel] [XSCE] Fwd: [support-gang] Number of XO-1 per AP on XSCE - one data point

[George Hunt]

That would satisfy my curiosity.

Is there an easy way to sniff a channel to infer it's utilization? Maybe
look at collisions/retransmissions/, or error rates. or . . .

Seems like 3 AP's might give us the same information with a lot less work.


On Mon, Apr 7, 2014 at 7:11 PM, James Cameron <quozl at laptop.org> wrote:

> It would be interesting to see the same test with XSCE, ejabberd, and
> three APs on separate channels.  This would reduce the processing
> burden on the AP CPUs, and reduce the air time requirement.
>
> On Mon, Apr 07, 2014 at 06:55:55PM -0400, George Hunt wrote:
> > This number resonates with me.  Kevin Gordon, in Toronto, was interested
> in
> > XSCE primarily because it would offer ejabberd, without which the
> factorial N
> > conversations taken two at a time would fill the air waves at N=13.
> >
> > I'm responding this way because of your statement that the clients were
> > "non-XOs". My guess is that no AP will be able to handle more than 13
> without
> > ejabberd (and the registration process between the XO and the server
> which
> > enables it).
> >
> >
> > On Mon, Apr 7, 2014 at 12:14 PM, Adam Holt <holt at laptop.org> wrote:
> >
> >     FYI!
> >
> >
> >     From: Nathan C. Riddle <nathanr333 at charter.net>
> >     Date: Mon, Apr 7, 2014 at 12:05 PM
> >     Subject: [support-gang] Number of XO-1 per AP on XSCE - one data
> point
> >     To: Gang <support-gang at laptop.org>
> >
> >
> >     The maximum usable number of XO-1's (12.1.0) appears to be 14 using
> as AP
> >     TP-Link MR3020 on XSCE 0.4 RC1 on XO-1.5  with about 10 non-XO's
> showing in
> >     neighborhood. Number 15 is unreliable at connecting. With 14, simple
> >     connections to MOODLE appear reliable.   XSCE 0.4 was used since it
> was the
> >     only one available last September as school started.
> >
> >     Testing DKMS libertas.ko file provided by quozl.org (
> http://dev.laptop.org/
> >     ~quozl/12757/dkms     with chmod 744 to file) to establish baseline
> for
> >     Mesh Potato-2 Basic AP replacement of MR3020. Presence of XO-1 with
> no
> >     modification appears to have no effect  on connections by modified
> XO-1's
> >     (as contrasted to XO-1's with old .ko file).
> >
> >     Hoping MP-2 will push this past 25.
> >
> >     Supplying this one data point since I had previously ask this
> question
> >     here.
> >
> >     Nathan Riddle
> >
> >
> >     --
> >     Unsung Heroes of OLPC, interviewed live @ http://unleashkids.org !
> >
> >
>
> --
> James Cameron
> http://quozl.linux.org.au/
>
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