Specifications

RoamAbout Mobility System Software Configuration Guide 11-1

Configuring RF Auto-Tuning

RF Auto-Tuning Overview

TheRF Auto‐TuningfeaturedynamicallyassignschannelandpowersettingstoAPradios,and

adjuststhosesettingswhenneeded.RF Auto ‐Tuningcanperformthefollowingtasks:

• AssigninitialchannelandpowersettingswhenanAPradioisstarted.

• PeriodicallyassesstheRFenvironmentandchangethechannelorpowersettingif

needed.

Bydefault,RF Auto‐Tuningisenabledforchannelconfigurationand disabledforpower

configuration.

Initial Channel and Power Assignment

ThefollowingprocessisusedtoassignthechannelandpowertoanAPradiowhenitisfirst

enabled:

•IfRF Auto‐Tuningisdisabledforbothchannelandpowerassignment,theradiousesthe

channelandpowersettingsintheradioprofilethatmanagestheradio.Afterthis,thechannel

andpowerdonotchangeunlessyouchangethesettingsintheradioprofile,orenable

RF Auto‐Tuning.

•IfRF Auto‐Tuningisenabledforchannelandpowerassignment,theradioperformsanRFscan

andreportstheresultstotheRASthatismanagingtheAPtheradioison.The

scanresults

includethird‐partyaccesspoints.Basedonthescanresults,MSSsetsthechannelandpower

ontheradio.MSSalwaysselectschannelandpowersettingsthatarevalidforthecountryof

operation.

•Initialchannelassignment—MSSselectsachannelatrandomfromthesetofvalid

channelsfor

theradiotypeandcountrycode.Afterthis,eachsubsequenttimetheradioor

RFAuto‐Tuningisrestarted,adifferentchannelisselectedtoensureevendistribution

amongthechannels.

For information about... Refer to page...

RF Auto-Tuning Overview 11-1

Changing RF Auto-Tuning Settings 11-6

Displaying RF Auto-Tuning Information 11-9

Note: RF Auto-Tuning of channels on 802.11a radios uses only the bottom eight channels in the

band (36, 40, 44, 48, 52, 56, 60, and 64). To use a higher channel number, you must disable RF

Auto-Tuning of channels on the radio profile the radio is in, and statically configure the channel.