Five-tier network architecture

Source: Internet
Author: User
Tags file transfer protocol

I. Five-tier networking architecturethe network architecture of the five-tier protocol includes the following five tiers from top to bottom:1. Application layer;2. Transport layer;3. Network layer;4. Data link layer;5. Physical layer.


two. The corresponding protocol and hardware for each layer
Name The corresponding protocol The corresponding hardware
Application Layer FTP (File Transfer Protocol), TELNET (Remote terminal Protocol), HTTP (Hypertext Transfer Protocol), SMTP (Simple Mail Transfer Protocol), DHCP (Dynamic Host Configuration Protocol), SNMP (Simple Network Management Protocol)
Transport Layer Tcp,udp Quad switch, router working on layer fourth
Network layer Ip,arp,icmp,rarp,akp,uucp Routers, firewalls, layer three switches
Data Link Layer Ppp,csma/cd Network Bridge, Ethernet switch (two-layer switch), NIC (half working on the physical layer, half working at the data Link layer)
Physical Layer
modem, repeater, hub, twisted pair




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Five-tier network architecture

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