Computer network 12--TCP/IP Reference Model

Contents of this page

Introduction to the 1.TCP/IP Reference Model

2.5 Layers Reference Model each layer function introduction

Data encapsulation for 3.5-layer reference models

Introduction to the 1.TCP/IP Reference Model

2.5 Layers Reference Model each layer function introduction

The 5-layer Reference Model synthesizes the benefits of OSI and TCP/IP

A. Application layer

Support various network applications (such as ftp,smtp,http, etc.)

B. Transport Layer

Data transfer between processes and processes (TCP,UDP, etc.)

C. Network layer

Responsible for packet routing and forwarding of the source host to the destination host (IP protocol, routing protocol, etc.)

d. Data Link Layer

Data transfer of neighboring network elements (hosts, switches, routers, etc.) (Ethernet (Ethernet), 802.11 (WiFi), PPP)

E. physical Layer

Bit transfer

please refer to the OSI Reference Model for details.

Data encapsulation for 3.5-layer reference models

Computer network 12--TCP/IP Reference Model