TCP/IP - ISO Reference Model
Application
SMTP Telnet FTP/TFTP DNS
Transport
TCP
UDP
Network
IP
ARP
RARP
ICMP*
Data Link
Ethernet FDDI/CDDI Token Ring
Physical
UTP/STP Fiber Coaxial Cable Wireless

*ICMP messages are encapsulated in an IP datagram, which is
further encapsulated in a data link frame for transmission.

Definitions


Todd Murchison
< todd@murchison.net >