Simrad EK15 - Page 226

SimradEK15
InternetProtocol(IP)address
AnInternetProtocol(IP)addressisanumericalidenticationandlogicaladdressthatis
assignedtodevicesparticipatinginacomputernetworkutilizingtheInternetProtocolfor
communicationbetweenitsnodes.AlthoughIPaddressesarestoredasbinarynumbers,
theyareusuallydisplayedinhuman-readablenotations,suchas208.77.188.166.
(C) (C)
(D)
(D)
(E)
(F)
(G)
(F) (E)
(E)
(E)
(D)
(D)
(A) (B)
(CD0191 12-002)
IPaddressingandUDPportprinciples
ALocalsystem
BRemotesystem
CEthernetinterfaceboard
DDatastorage
EUDPport,eachwithadifferentportaddress
FIPaddress,eachEthernetinterfaceboardhasitsownindividualaddress
GEthernetcommunication
TheroleoftheIPaddresshasbeencharacterizedasfollows:"Anameindicateswhatwe
seek.Anaddressindicateswhereitis.Arouteindicateshowtogetthere”.
UserDatagramProtocol(UDP)
TheUserDatagramProtocol(UDP)isoneofthecoremembersoftheInternetProtocol
Suite,thesetofnetworkprotocolsalsousedfortheInternet.WithUDP,computer
applicationscansendmessages,inthiscasereferredtoasdatagrams,tootherhostsonan
InternetProtocol(IP)networkwithoutrequiringpriorcommunicationstosetupspecial
transmissionchannelsordatapaths(TCP).
UDPissometimesreferredtoastheUniversalDatagramProtocol.
Datagramsocketsandports
UDPapplicationsusedatagramsocketstoestablishhost-to-hostcommunications.
Socketsbindtheapplicationtoserviceports,thatfunctionastheendpointsofdata
transmission.
Aportisasoftwarestructurethatisidentiedbytheportnumber,a16-bitintegervalue,
allowingforportnumbersbetween0and65,535.
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