Avaya AP-6 - Manual (Page 466)

802.11b/g Wireless Interface Commands
A-120 Avaya Wireless AP-4/5/6 User’s Guide
Perform the following commands to enable TX Power Control and set the
transmit power level:
[Device-Name]> set txpowercontrol enable
[Device-Name]> set wif currenttxpowerlevel
Allowed values are: 1 (100%), 2 (50%), 3 (25%), 4 (12.5%)
Autochannel Select (ACS)
ACS is enabled by default. Reboot after disabling or enabling ACS.
[Device-Name]> set wif autochannel
[Device-Name]> reboot 0
Enable/Disable Closed System
[Device-Name]> set wif closedsys