Protocol Overview TCP/IP and the DoD Model IP Addressing ting TCP/IP and the DoD Model of Dod and OSI Model The TCP/IP protocol suite The Process / Application layer Protocols The Host-to-Host Layer Protocols The Layer Protocols of DoD and OSI Model (1) The TCP/IP suite was created by the DoD The DoD model is a condensed version of the OSI model Application Presentation Session Transport Network Data Link Physical Process / Application Host-to-Host Network Access DoD Model OSI Model Node-to-node munication Controls user-interface specifications Setting up the level of transmission service for applications Takes care IP address and designate protocols for logical transmission of packets over the work Oversees hardware addressing and defines protocols for the physical transmission of data of DoD and OSI Model (2) TCP/IP Model OSI Model The TCP/IP Protocol Suite Process / Application TCP UDP IP ICMP ARP LAN Technologies: , Fast , Token Ring, FDDI WAN Technologies: Serial Lines, Frame Relay, ATM RARP Host-to-Host Network Access FTP TFTP SMTP LPD SNMP NFS X Window BootP/ DHCP DNS IGMP The Process / Application Layer Protocols – work FTP – File Transfer Protocol TFTP – Trivial File Transfer Protocol NFS – Network File System SMTP – Simple Mail Transfer Protocol LPD – Line Printer Daemon X Window – writing a GUI-based client/server applications DNS – Domain Name Service (DNS) BootP – Bootstrap Protocol DHCP – Dynamic Host Configuration Protocol The Host-to-Host Layer Protocols To shield the upper-layer applications from plexities of work TCP (Transmission Control Protocol) Break down data from upper layers into Segment Numbers and sequences each segment Connection-oriented – virtual circuit required User Datagram Protocol (UDP) Break down data but not sequence the segment Thin protocol which doesn’t take up much bandwidth on work Connectionle
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