HOW AIRGROUP SERVICE WORKS IN ARUBA INSTANT APTechnical Climb Webinar10:00 GMT | 11:00 CET | 13:00 GSTJuly 26th, 2016Presenter: Barath Srinivasan

barath.srinivasan@hpe.com

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Welcome to the Technical Climb Webinar

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Housekeeping

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WHAT IS AIRGROUP FEATURE?

How is Airgroup implemented in Aruba?

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Introduction: Airgroup

AirGroupisauniqueenterprise-classcapabilitythatleverageszeroconfigurationnetworkingtoenableBonjour®serviceslikeApple®AirPrintandAirPlayfrommobiledevicesinanefficientmanner

AirGroupsolutionsupportsbothwiredandwirelessdevices.WireddeviceswhichsupporttheBonjourservicesaremadepartoftheAirGroupwhentheVLANsofthedevicesareterminatedontheVirtualController.

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Airgroup and Aruba Clearpass

AirGroupalsosupportsArubaClearPassPolicyManager(CPPM).

WithArubaCPPM:

• Users,suchasstudentsindormroomscanregistertheirpersonaldevicesanddefineagroupofuserswhoareallowedtosharetheusers’registereddevices.

• Administratorscanregisterandmanageanorganization'sshareddeviceslikeprintersandconferenceroomAppleTVs.Anadministratorcangrantglobalaccesstoeachdevice,orrestrictaccessaccordingtotheusername,role,oruserlocation.

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Airgroup Architecture at a glance

Thedistibuted AirGrouparchitectureallowseachIAPtohandleBonjourqueriesandresponsesindividuallyinsteadofoverloadingaVirtualcontrollerwiththesetasks.ThisresultsinascalableAirGroupsolution.

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How does Airgroup work?

AirGroupfunctionalityisdescribedinthestepsbelow.ThisflowoccurswhenanArubaWLANispoweredbyanArubaInstantandClearPassPolicyManager.Adevicecanberegisteredbyanadministratororaguestuser.

1. TheAirGroupadministratorgivesanendusertheAirGroupoperatorrolewhichauthorizestheusertoregistertheusersdevice—suchasanAppleTVontheClearPassPolicyManagerplatform.

2. ArubaInstantmaintainsstateinformationforallmDNSservices.ArubaInstantqueriesClearPassPolicyManagertomapeachdevice’saccessprivilegestoavailableservices.

3. ArubaInstantrespondsbacktothequerymadebyadevicebasedoncontextualdata– userrole,username,andlocation.

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Use case scenario: Airgroup in Enterprise IAP WLAN

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Features of Airgroup

• AirGroupsendsunicastresponsestomDNSqueriesandreducesmDNStrafficfootprint.

• Ensurecross-VLANvisibilityandavailabilityofmDNSdevicesandservices.

• AlloworblockmDNSservicesforallusers.

• AlloworblockmDNSservicesbasedonuserroles.

• AlloworblockmDNSservicesbasedonVLANs.

• Matchusers’devices,suchasiPads,totheirclosestBonjourdevices,suchasprinters.ThisrequiresCPPMsupport.

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Clearpass related Airgroup features

• RegistrationportalforWLANuserstoregistertheirpersonaldevices,suchasAppleTVsandprinters.

• RegistrationportalforWLANadministratorstoregistershareddevices,suchasconferenceroomAppleTVsandprinters.

• Operator-defined“personalAirGroups”tospecifyalistofotheruserswhocansharedeviceswiththeoperator.

• Administratordefinedusername,userrole,andlocationattributesforshareddevices.

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The overall Airgroup Solution

ThecomponentsthatmakeuptheAirGroupSolutionincludetheArubaInstant,ClearPassPolicyManager,andClearPassGuest.

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Configuring Airgroup on Aruba Instant

ConfiguringAirGroupanditsservicerequiresthatyouenabletheAirGroupfeature.IAPAirGroupsupportstwodefaultservicesi.e.AirPlayandAirPrint.

AsthefirststepinconfiguringAirGroupservices,youmustenableAirGroupintheInstantUI.1. GotoSettings >AirGroup toenablethisfeature.2. SelectEnableAirGroup toviewtheAirGroupSettings.Instantsupportstwotypesdeploymentmodels:• IntraCluster• InterClusterIntheIntraClustermodel,theIAPdoesnotsharethemDNSdatabaseinformationwiththeotherclusters.IntheInterClustermodel,theIAPsharesthemDNSdatabaseinformationwiththeotherclusters.

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Enabling Airgroup across mobility domains

Enable Air Group across mobility domains—

Select Enable Air Group across mobility domains to enable Inter cluster.

NOTE: By default, this feature is disabled.

Navigate to L3 Mobility tab of Settings to define a set of clusters.

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Enabling Air Print and Air Play

EnableAirPrint—Whenenabled,thefollowingtwooptionsaremadeavailable:

• AirPrintdisallowedroles— ClientswiththeseroleswillnothaveaccesstoAirPrintdevices.

• AirPrintdisallowedVLANs— NoAirPrintserverswillbeseenontheseVLANs.

EnableAirPlay—Whenenabled,thefollowingtwooptionsaremadeavailable:

• AirPlaydisallowedroles— ClientswiththeseroleswillnothaveaccesstoAirPlaydevices.

• AirPlaydisallowedVLANs— NoAirPlayserverswillbeseenontheseVLANs.

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Troubleshooting Airgroup

YoucanviewthefollowingAirGroupcommandsintheCommanddrop-downlist.

• APAirGroupCache— DisplaystheBonjourmDNSrecordsfortheselectedIAP(s).• APAirGroupCPPMEntries— DisplaystheAirGroupCPPMpoliciesoftheregistereddevices.• APAirGroupCPPMServers— DisplaystheAirGroupCPPMserverinformation.• APAirGroupDebugStatistics— DisplaysthedebugstatisticsfortheselectedIAP(s).• APAirGroupServers— DisplaysinformationabouttheBonjourdeviceswhichsupportsAirPrintandAirPlay

servicesfortheselectedIAP(s).• APAirGroupUser— DisplaysIP/MACaddress,devicename,VLAN,typeofconnectionoftheBonjourdevices

fortheselectedIAP(s).• VCAirGroupService— DisplaysthebonjourservicessupportedfortheselectedIAP(s).• VCAirGroupStatus— Displaystheenable/disablestatusoftheAirGroupandtheparametersoftheCPPM

serversfortheselectedIAP(s).• VCAirGroupvlan— DisplaystheAirGroupstatusinformationforaVLANoftheselectedIAP(s).

QUESTIONS

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