ISO/OSI Ethernet-Verkabelung/Protokoll 2 Twisted Pair, Glasfaser, Koaxial 1 IP ( unreliable ) / ARP 3 TCP reliable 4 UDP = IP + PORT + unreliable Checksum.

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Presentation transcript:

ISO/OSI Ethernet-Verkabelung/Protokoll 2 Twisted Pair, Glasfaser, Koaxial 1 IP ( unreliable ) / ARP 3 TCP reliable 4 UDP = IP + PORT + unreliable Checksum Berkeley Sockets API SOCK_STREAMSOCK_DGRAM

(TCP/UDP)-IP = 5-Tupel : (SendAddr, SendPort, Protokoll, RecvAddr, RecvPort)

write() socket()bind()listen()accept()read() API-Aufrufe: TCP UDP socket() connect() write() read()

API-Aufrufe: TCP UDP socket() bind() listen() accept() read() write() socket() connect() write() read() socket() bind() recvfrom () sendto() socket() sendto() recvfrom () bind()

InternetDomain, UnixDomain InternetDomain = (bidirektionale) Kommunikation zwischen Rechnern UnixDomain = (bidirektionale) Kommunikation auf EINEM (Unix-)Rechner

UNIXDomain 3er Tupel: (Protocol, server-process, client-process) Kommunikation innerhalb eines Dateisystems!

socket() bind() listen() accept() recv() send() socket() connect() send() recv() UNIXDomain

Kombinationen bind() socket() AF_INETAF_UNIX SOCK_ STREAM SOCK_ DGRAM TCP/IP STANDARD UDP/IP STANDARD reliable / 1 Rechner unreliable / 1 Rechner

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