Specifications

Glossary-24
station
Anydevice withamediaaccesscontrol(MAC)addressandaPhysicallayer(PHY)interfacetothe
wirelessmediumthatcomplywiththestandardsforallIEEE802networks.Wirelessclientsand
AccessPoints(APs)arestationsinanEnterasysNetworksMobilitySystem.
STP
SpanningTreeProtocol.Alinkmanagementprotocol,definedintheIEEE802.1Dstandard,that
providespathredundancywhilepreventingundesirableloopsinanetwork.STPisalsoknownas
SpanningTreeBridgeProtocol.
subnet mobility
Theabilityofawirelessuser(client)toroamacrossAccessPoints(APs)andRoamAboutswitches
inavirtualLAN(VLAN)whilemaintainingasingleIPaddressandassociateddatasessions.
supplicant
Aclientthatisattemptingtoaccessanetwork.
syslog server
Aremoterepositoryforlogmessages.EnterasysNetworksMobilitySystemSoftware(MSS)
supportsuptofoursyslogserversonvirtualLANs(VLANs)whoselocationsareconfigurable.
MSSlogprotocolcomplieswithRFC 3164.
Temporal Key Integrity Protocol
SeeTKIP.
TKIP
TemporalKeyIntegrityProtocol.Awirelessencryptionprotocolthatfixestheknownproblemsin
theWired‐EquivalentPrivacy(WEP)protocol forexistingIEEE802.11products.LikeWEP,TKIP
usesRC4ciphering,butaddsfunctionssuchasa128‐bitencryptionkey,a48‐bitinitialization
vector,anewmessageintegritycode
(MIC),andinitializationvector(IV)sequencingrulesto
providebetterprotection.Seealso802.11i;CCMP.
TLS
TransportLayerSecurityprotocol.Anauthenticationandencryptionprotocolthatisthesuccessor
totheSecureSocketsLayer(SSL)protocolforprivatetransmissionovertheInternet.Definedin
RFC 2 246,TLSprovidesmutualauthenticationwithnonrepudiation,encryption,algorithm
negotiation,securekeyderivation,andmessageintegritychecking.TLShasbeenadaptedforuse

inwirelessLANs(WLANs)andisusedwidelyinIEEE802.1Xauthentication.SeealsoEAP‐TLS;
PEAP;TTLS.
TLV
Type,length,andvalue.Amethodologyforcodingparameterswithinaframe.Typeindicatesa
parameter’stype,lengthindicatesthelengthofitsvalue,andvalueindicatestheparameter’svalue.
Transport Layer Security protocol
SeeTLS.
TTLS
TunneledTransportLayerSecurity.AnExtensibleAuthenticationProtocol(EAP)method
developedbyFunkSoftware,Inc.,andCerticomfor802.1Xa uthenti cation.TTLSusesa
combinationofcertificatesandpasswordchallengeandresponseforauthentication.Theentire
EAPsubprotocolexchangeofattribute‐valuepairstakesplaceinsideanencryptedtransportlayer
security(TLS)
tunnel.