Specifications

Glossary-21
RADIUS
RemoteAuthenticationDial‐InUserService.Aclient‐serversecurityprotocoldescribedin
RFC 2 865andRFC 2866.RADIUSextensions,includingRADIUSsupportfortheExtensible
AuthenticationProtocol(EAP),aredescribed inRFC 2 869.OriginallydevelopedbyLivingston
Enterprises,Inc.,toauthenticate,authorize,andaccountfordial‐upusers,RADIUShasbeen
widelyextended
tobroadband andenterprisenetworking.TheRADIUSserverstoresuserprofiles,
whichincludepasswordsandauthorizationattributes.
RAS
SeeRoamAboutSwitch.
RoamAbout Switch
AswitchinanEnterasysNetworksMobilitySystem.ARoamAboutSwitchprovidesforwarding,
queuing,tunneling,andsomesecurityservicesfortheinformationitreceivesfromitsindirectly
attachedAccessPoints(APs).Inaddition,theRoamAboutSwitchcoordinates,providespowerto,
andmanagestheconfigurationofeachattachedAP,bymeansof
theEnterasysAccessPointAccess
(EAPA™)protocol.
RC4
Acommonencryptionalgorithm,designedbyRSADataSecurity,Inc.,usedbytheWired‐
EquivalentPrivacy(WEP)protocolandTemporalKeyIntegrityProtocol(TKIP).
Received Signal Strength Indication
SeeRSSI.
Registration Authority (RA)
Networksoftwarethatverifiesauser(client)requestforadigitalcertificateandinstructsthe
certificateauthority(CA )toissuethecertificate.Registrationauthoritiesarepartofapublic‐key
infrastructure(PKI),whichenablessecureexchangesofinformationoveranetwork.Thedigital
certificatecontainsa publickeyforencryptingand
decryptingmessagesanddigitalsignatures.
Remote Authentication Dial-In User Service
SeeRADIUS.
restricted access
PermissiontousemostMobilitySystemSoftware(MSS)command‐lineinterface(CLI)commands
requiredforviewingstatusinformation(showcommands),exceptthosethatlistsecurity
informationincleartext.UserswithrestrictedaccesscanclearARPrequestsandpinghosts.
Compareenabledaccess.
RF detection sweep
Acomprehensivesearchforradiofrequency(RF)signalswithinaMobilityDomain™group,to
locaterogueclients,rogueAccessPoints(APs),andadhocusers.Asweepcanbeeitherascheduled
sweeporacontinuousSentrySweep™search.Duringascheduledsweep,eachincludedaccess
pointradiosweepsallchannelsin
theIEEE802.11b/gand802.11aspectrum.Incontrast,
SentrySweepoperatesonlyonthedisabledradiosinaMobilityDomainanddoesnotdisrupt
service.
RoamAbout Switch Manager™
Atoolsuiteforplanning,configuring,deploying,andmanaginganEntera sysNetworks Mobility
SystemwirelessLAN(WLAN).Basedonsiteand userrequirements,RoamAboutSwitchManager
determinesthe locationofRoamAboutSwitchesandAccessPoints(APs)andcanstoreandverify
configurationinformationbeforeinstallation.Afterinstallation,RoamAboutSwitchManager
deploys
thesettingsontheequipmentandmanagesandverifiesconfigurationchanges.