XO (88W8388) roaming issues

[Franco Miceli]

That could be the case, since we are using wpa
_supplicant-0.6.8-10.fc14.i686.

But from another mal exchange with you I got the impression that wpa_supplicant
did not take part in roaming on the XO laptop (Libertas-Thick Firmware).

Can I expect changes from using wpa_supplicant with version higher than 0.7
on the XO laptop?

BR,

Franco


2013/3/26 Dan Williams <dcbw at redhat.com>

> On Fri, 2013-03-22 at 11:43 -0300, Franco Miceli wrote:
> > Hi,
> >
> > We have a deployment of 400K XOs, which have the marvel
> > 88W8388<http://wiki.laptop.org/go/88W8388> chip
> > and use Libetas Firmware.
> >
> > The issue we are having is when we set the SSID of our schools to the
> same
> > value.
> >
> > The laptops (on several tests we have run) jump from AP to AP without
> > apparent reason.
> >
> > Can something be modified at OS level to try and improve this "bad
> roaming"
> > situation?
>
> They jump from AP to AP because they find a stronger AP and switch over
> to that one.  What version of of the wpa_supplicant package is installed
> on those machines?  There are some well-known issues with older versions
> of wpa_supplicant that are too aggressive and roam to APs when the
> signal strength changes only slightly.
>
> Obviously in a wifi environment, signal strength changes quite a bit,
> even for the same access point, depending on where you're sitting, how
> many walls are between you and the AP, even whether somebody opens a
> door or not or turns on a microwave.
>
> So I'd suggest that if the supplicant is an older version (0.7.x
> perhaps) it could be updated and/or patched to roam only when the new
> APs signal level is significantly better than the old AP.
>
> Dan
>
>


-- 
Ing. Franco Miceli
CITS - Plan Ceibal - Investigación & Desarrollo
Av. Italia 6201 - Montevideo, Uruguay
CP: 11500
Tel: (598 2) 601 5773 int.: 2227
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