Older versions of linux used:
iwconfig dev sens -80
To set the roam sensitivity, after the signal dropped below the set threshold, the card/adapter would initiate a scan looking for another AP to roam to.
I'm being told that iwconfig has been obsoleted in favor of using IW for cards that use mac/cfg80211.
This answer from Grawity seems to confirm that: iwconfig command not showing abgn
The IW man page isn't really of any help:
This wiki has alot of information, but nothing on sensitivity:
It's rare that I have to do this at all, but every once and a while I get sticky linux clients trying to hold on to an AP long after they should have roamed. I prefer installing Atheros based wireless cards if that makes any difference.
So the question comes down to: Does anyone know of any way to perform some CLI wizardry to set the "roam agressivness" with iw from the command prompt?
Thanks in advance!
1 Answer
iw apparently has no equivalent for the sensitivity threshold.
The articleDeprecated iwconfig commandsfor the sub-command iwconfig [interface] sens [threshold],
only says this in the Replacement column : "Not apparent".
A non-CLI vaguely alternative setting is found
in the file /etc/sysconfig/network-scripts/ifcfg-wireless.
You can set in this file the parameterSENS=1|2|3 for selecting the sensitivity level of the access point,
although not with the same precision as with iwconfig.
For example documentation, see for Red Hat the articleSetting Up a Wireless LAN:
1SENS — You can select the sensitivity level of the access point. SENS can be set to 1 (low density), 2 (medium density), 3 (high density). The default is 1. The sensitivity threshold has an impact on roaming.
