Freescale Semiconductor TWR-MCF52259-Ethenet manual OSI 7 Layer Model

Application

Transport

Network

Link

TCP/IP Four

Layers

Equivalent:

The OSI 7 Layer Model

The Open Systems Interconnection Reference Model (OSI Model or OSI Reference Model for short) is a layered abstract description for communications and computer network protocol design, developed as part of the Open Systems Interconnect initiative.

Layer 7 – Application

HTTP, SMTP, POP3, TFTP

Layer 6 – Presentation

Berkeley Socket Interface, XTI, Custom

Layer 5 – Session

Berkeley Socket Interface, XTI, Custom

Layer 4 – Transport

TCP, UDP

Layer 3 – Network

IP, ARP, ICMP (Internet Control Message Protocol)

Layer 2 – Data Link (MAC)

Ethernet, PPP

Layer 1 – Physical (PHY)

RS232, 10BASE-T, DSL, T1

All People Seems To Need Data Processing”.

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