Specifications

Glossary-2
802.11a
AsupplementtotheIEEE802.11wirelessLAN(WLAN)specification,describingtransmission
throughthePhysicallayer(PHY)basedonorthogonalfrequencydivisionmultiplexing(OFDM),
atafrequencyof5GHzanddataratesofupto54 Mbps.
802.11b
AsupplementtotheIEEE802.11wirelessLAN(WLAN)specification,describingtransmission
throughthePhysicallayer(PHY)basedondirect‐sequencespread‐spectrum(DSSS),atafrequency
of2.4 GHzanddataratesofupto11 Mbps.
802.11b/g radio
AradiothatcanreceiveandtransmitsignalsatIEEE 802.11band 802.11gdatarates.Enterasys
802.11b/gradiosallowassociationsfrom802.11bclientsaswellas802.11gclients bydefault,for 
networksthathaveamixtureofbothclienttypes.However,associationbyany802.11bclients
restrictsthemaximumdatatransmit rate
forallclients.Toallowtheradiostooperateatthehigher
802.11gdatarates,youcanset802.11b/gradiostorejectassociationattemp tsby802.11bclients.
802.11g
AsupplementtotheIEEE802.11wirelessLAN(WLAN)specification,describingtransmission
throughthePhysicallayer(PHY)basedonorthogonalfrequencydivisionmultiplexing(OFDM),
atafrequencyof2.4 GHzanddataratesofupto54 M bps.
802.11i
AdraftsupplementtotheIEEE802.11wirelessLAN(WLAN)specification,forenhancedsecurity
throughtheuseofstrongerencryptionprotocolssuchastheTemporalKeyIntegrityProtocol
(TKIP)andAESCounterModewithCipherBlockChainingMessageAuthenticationCodeProtocol
(AES‐CCMP).Theseprotocolsprovidereplayprotection,cryptographicallykeyedintegrity
checks,
andkeyderivationbasedontheIEEE802.1Xportauthenticationstandard.SeealsoAES;CCMP;
TKIP;WPA.
AAA
Authentication,authorization,andaccounting.Aframeworkforconfiguringservicesthatprovide
asecurenetworkconnectionandarecordof useractivity,byidentifyingwhotheuseris,whatthe 
usercanaccess,andwhatservicesandresourcestheuserisconsuming.InanEnterasysNetworks
MobilitySystem,theRoamAboutSwitchcan
useaRADIUSserveroritsownlocaldatabasefor
AAAservices.
Access Control Entry
SeeACE.
Access Control List
SeeSecurityACL.
Access Point (AP)
AsmallhardwareunitthatfunctionsasawirelessAccessPoint(AP)inanEnterasysNetworks
MobilitySystem.Usingoneormoreradiotransmitters,anAPtransmitsandreceivesinformation
asradiofrequency(RF)signalstoandfromawirelessuser(client).TheAPt r ansmits andreceives
informationovera10/100BA SE
‐TEthernetconnectiontoandfromaRoamAboutSwitch.The
switchalsosupplieselectricalpowertotheaccesspointbymeansofPoweroverEthernet(PoE).An
APcommunicateswithaRoamAboutSwitchbymeansoftheEnterasysAccessPointAccess
(EAPA)protocol.Seealsoadhocnetwork;infrastructurenetwork
.