[Server-devel] [XSCE] Fwd: [support-gang] Number of XO-1 per AP on XSCE - one data point
georgejhunt at gmail.com
Mon Apr 7 19:17:43 EDT 2014
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
> > 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
> > ejabberd (and the registration process between the XO and the server
> > 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
> > 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 (
> > ~quozl/12757/dkms with chmod 744 to file) to establish baseline
> > Mesh Potato-2 Basic AP replacement of MR3020. Presence of XO-1 with
> > modification appears to have no effect on connections by modified
> > (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
> > here.
> > Nathan Riddle
> > --
> > Unsung Heroes of OLPC, interviewed live @ http://unleashkids.org !
> James Cameron
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