On Wed, 2009-08-12 at 09:07 +0200, Holger Schurig wrote: > Some examples: with madwifi, I can tell the driver to only scan > on channels 1,6,11. That's not exactly standards-conforming, but > can speed up roaming considerably, because a full scan is now > way shorter. mac80211 doesn't support such a thing directly. It > just occurs to me that you might be able to do something like > with with a special regulatory daemon. Or you can just ask wpa_supplicant to do that with -Dnl80211. > Or with orinoco, you could define a level when to roam (e.g. at > what SNR/RSSI/whatever it is based on). mac80211 doesn't have > this. The intention is to add signal strength triggers to mac80211/drivers to notify wpa_supplicant which then implements the algorithm. There are a ton of algorithms to choose from, so this will be very good for experimentation, academia and getting the best algorithm eventually :) Right now you don't have signal strength triggers so you'd have to monitor the signal strength (like "iw wlan0 link"). johannes
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