User manual

SimradES70
Figure3IPaddressingandUDPportprinciples
(C) (C)
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(F) (E)
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(A) (B)
(CD0191 12-002)
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.
HowtheIPaddressesandportsaresetupintheES70totransmit
data
1LocalIPAddress
ThisIPaddressisunessential,unlessyouhavemorethanoneEthernetboardon
yourcomputer.YoumustthenspecifytheIPaddressoftheboardyouwishtouse.
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