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TCP/IP four layer model of network

Source: Internet
Author: User
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  1. Application tier (application tier, presentation layer, Session layer): FTP, Telnet, DNS, SMTP
  2. Transport layer (transport layer):tcp< Transmission Control Protocol >, udp< User data message Protocols >
  3. Internetwork Interconnect Layer (Network layer): IP, igmp< Internet Group Management Protocol >, icmp< Internet Control Message protocol, such as Ping>
  4. Network interface layer (data link layer, physical layer): ARP protocol

To view the physical address of the IP address:

TCP/IP four layer model of network

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