D-Link DWL-3600AP - Enabling Aeroscout Engine Support; Using the 802.11 H Wireless Mode

WirelessSettings
D-Link UnifiedAccessPointAdministrator’sGuide
November2011 Page57
UnifiedAccessPointAdministrator’sGuide
Usingthe802.11hWirelessMode
For802.11aradios,iftheregulatorydomainrequiresradardetectiononthechannel,theDynamicFrequency
Selection(DFS)andTransmitPowerControl(TPC)featuresof802.11hareautomaticallyactivated.
ThereareanumberofkeypointsabouttheIEEE802.11hstandard:
•802.11honlyworksforthe802.11aband.Itisnotrequired
for802.11bor802.11g.
•Ifyouareoperatinginan802.11henableddomain,theAPattemptstousethechannelyouassign.Ifthe
channelhasbeenblockedbyapreviousradardetection,oriftheAPdetectsaradaronthechannel,then
theAPautomaticallyselectsadifferentchannel.

•When802.11hisenabled,theAPwillnotbeoperationalinthe5GHzbandforatleast60secondsdueto
radarscanning.
•SettingupWDSlinksmaybedifficultwhen802.11hisoperational.Thisisbecausetheoperatingchannels
ofthetwoAPsontheWDSlinkmaykeepchanging
dependingonchannelusageandradarinterference.
WDSwillonlyworkifboththeAPsoperateonthesamechannel.FormoreinformationonWDS,see
“ConfiguringLoadBalancing”onpage88.
EnablingAeroScout™Engine Support
TheAeroScoutEngine(AE)isasoftwareplatformproducedbyAeroScoutInc.forlocation‐basedservices.The
AEcandeterminethephysicallocationof802.11‐capableAeroScoutdevices.TheAEcommunicateswithAPs
thathavetheAEprotocolenabledinordertocollectinformationabouttheRFdevicesdet ect edbythe
APs.
TheDWS‐4000SeriesswitchsupportsonlydirectcommunicationbetweentheAEandtheAPs.When
operatinginmanagedmode,theAEisconfiguredwiththeIPaddressofthemanagedaccesspointsfromwhich
itcollectsinfo rmation.TheDWS‐4000SeriesswitchdoesnotcommunicatewiththeAE.
AeroScout
tagsoperateonlyin802.11b/ gmode.Therefore,networkadministratorswhousetheAeroScout
tagsmustconfigureatleastoneradioonAPsthatareexpectedtodetecttagsineither802.11b/gor
802.11b/g/nmode.Theradiosconfiguredin2.4GHzIEEE802.11nmodeoranyofthe5GHzmodes
cannot
detectAeroScouttags.
Note:Afteryouconfigurethewirelesssettings,youmustclickApplytoapplythechangesandtosave
thesettings.ChangingsomesettingsmightcausetheAPtostopandrestartsystemprocesses.Ifthis
happens,wirelessclientswilltemporarilyloseconnectivity.WerecommendthatyouchangeAP
settingswhenWLAN
trafficislow.