Specifications

Glossary-6
coverage area
InEnterasysRoamAboutSwitchManager,thesmallestunitoffloorspacewithinwhichtoplan
AccessPoint(AP)coverageforawirelessLAN(WLAN).Thenumberofaccesspointsrequiredfor
acoverageareadependsonthe typeofIEEE802.11transmissionused,andthearea’sphysical
featuresanduserdensity.

CPC
Communicationsplenumcable.Seeplenum‐ratedcable.
CRC
Cyclicredundancycheck.Aprimitivemessageintegritycheck.
crypto
Seecryptography.
cryptography
Thescienceofinformationsecurity.Moderncryptographyistypicallyconcernedwiththe
processesofscramblingordinarytext(knownasplaintextorcleartext)intoencryptedtextatthe
sender’sendofaconnection,anddecryptingtheencryptedtextbackintocleartextatthereceiver’s
end.Becauseitssecurity
isindependentofthechannelsthroughwhichthetextpasses,
cryptographyistheonlywayofprotectingcommunicationsoverchannelsthatarenotunderthe
user’scontrol.Thegoalsofcryptographyareconfidentiality,integrity,nonrepudiation,and
authentication.Theencryptedinformationcannotbeunderstoodbyanyoneforwhomitis
not
intended,oralteredinstorage ortransmissionwithoutthealterationbeingdetected.Thesender
cannotlaterdenythecreationortransmissionoftheinformation,andthesenderandreceivercan
confirmeachother’sidentityandtheinformation’soriginanddestination.
CSR
CertificateSigningRequest.Amessagesentbyanadministratortorequestasecuritycertificate
fromacertificateauthority(CA).ACSRisatextstringformatted byPrivacy‐EnhancedMail(PEM)
protocolaccordingtoPublicKeyCryptographyStandard(PKCS)#10.TheCSRcontainsthe
informationneededbythecertificateauthorityto
generatethecertificate.
CSV file
Comma‐separatedvaluesfile.Atextfilethatdisplaystabulardatainacomma‐delimitedformat,
asalistofrowsinwhicheachcolumn’svalueisseparatedfromthenextbyacomma.ACSVfileis
usefulfortransferringdatabetweendatabaseapplications.
Cyclic Redundancy Check
SeeCRC.
dBm
Decibelsreferredto1 milliwatt(mW).Ameasurementofrelativepowerrelatedto1mW.For
example,20 dBmcorrespondsto10
20 dBm/10
=100 mW.
decibels referred to 1 milliwatt (mW).
SeedBm.
Data Encryption Standard
SeeDES.