Specifications

Glossary-26
YoucandivideasingledeviceintomultiplelogicalLayer 2switches,witheachVLANoperating
asaseparateswitch,ormakemultipledevicesmembersofmultiplelogicalLayer 2networks.By
default,allRoamAboutSwitchportsaremembersofVLAN 1,whichisnameddefault.
VLAN glob
Anamingconventionforapplyingtheauthentication,authorization,andaccounting(AAA)
attributesinthelocationpolicyonaRoamAboutSwitchtooneormoreusers,basedonavirtual
LAN(VLAN)attribute.TospecifyallVLANs,usethedouble‐asterisk(**)wildcardcharacters.To
matchanynumberofcharactersupto,
butnotincludingadelimitercharacterintheglob,usethe
single‐asteriskwildcard.ValidVLANglobdelimitercharactersaretheat(@)signandthedot(.).
Seealsolocationpolicy;MACaddressglob;userglob.
Voice over IP
SeeVoIP.
VoIP
VoiceoverIP.TheabilityofanIPnetworktocarrytelephonevoicesignalsasIPpacketsin
compliancewithInternationalTelecommunicationsUnionTelecommunicationStandardization
Sector(ITU‐T)specificationH.323.VoIPenablesaroutertotransmittelephonecallsandfaxesover
theInternetwithnolossinfunctionality,reliability,orvoice
quality.
VSA
Vendor‐specificattribute.AtypeofRADIUSattributethatenablesavendortoextendRADIUS
operationstofititsownproducts,withoutconflictingwithexistingRADIUSattributesortheVSAs
ofothercompanies.CompaniescancreatenewauthenticationandaccountingattributesasVSAs.
Web View
AWeb‐basedapplicationforconfiguringandmanagingasingleRoamAboutSwitchandits
attachedAccessPoints(APs)throughaWebbrowser.WebViewusesasecureconnectionthat
implementsHypertextTransferProtocoloverSecureSocketsLayer(HTTPS).
WECA
WirelessEthernetCompatibilityAlliance.SeeWi‐FiAlliance.
WEP
Wired‐EquivalentPrivacyprotocol.Asecurityprotocol,specifiedintheIEEE802.11standard,that
attemptstoprovideawirelessLAN(WLAN)withaminimallevelofsecurityandprivacy
comparabletoatypicalwiredLAN.WEPencryptsdata transmittedovertheWLANtoprotectthe
vulnerablewirelessconnectionbetweenusers(clients)
andAccessPoints(APs).Although
appropriateformosthomeuse,WEPisweakandfundamentallyflawedforenterpriseuse.
CompareAES;CCMP;TKIP.
Wi-Fi Alliance
Anorganizationformedbyleadingwirelessequipmentandsoftwareproviders,forcertifyingall
IEEE802.11wirelessLAN(WLAN)productsforinteroperabilityandpromotingthetermWi‐Fias
theirglobalbrandname.OnlyproductsthatpassWi‐FiAlliancetestingcanbecertified.Certified
productsare requiredtocarryanidentifying
sealontheirpackagingstatingthattheproductisWi‐
Ficertifiedandindicatingtheradiofrequencybandused(2.4 GHzfor802.11band5GHzfor
802.11a,forexample).TheWi‐FiAlliancewasformerlyknownastheWirelessEthernetCompatibility
Alliance(WECA).