Re: WiFi roaming question

[Christian Gagneraud <chgans@gna.org>]

On 19/08/13 20:26, Krishna Chaitanya wrote:
>> It turned out that, as a client, I don't have to bother with roaming stuff, it simply works out of the box.
>
> Roaming has 2 types:
>
> 1) based on the disconnection (beacon loss)
> 2) based on the RSSI
>
> Is it really roaming doing background scanning and preauth #2 (or) a
> connect and disconnect (assuming same ssid and security) #1?
>
>> Though, I have a couple of questions regarding this OOBX (new buzz word seen here and there for "out of the box experience" :) ).
>> - At which level the roaming is done? Is it at the WiFi kernel stack (cfg/mac 80211), at driver level, or at chipset/firmware level or a mix of them?
>> - Can I change my setup, so that I have control over the roaming?
>> - Is it a good idea to try to manage that myself from userspace?
>
> wpa_supplicant (userspace) takes care of the roaming for you, i belive
> it has support for both types #1 and #2 (along with background scan)
>
> Some proprietary version which implement at driver/fw level, this
> reduces the roam delay as it need not involve any context switches.
>

Thanks Krishna for your answer.

Regards,
Chris