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The Internet, TCP/IP Model August 6, 2005

Posted by Coolguy in Networks.
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  • Commonly, the top three layers of the OSI model (Application, Presentation and Session) are considered as a single Application Layer in the TCP/IP suite
  • TCP/IP has the following layers:
    Link – Device driver and interface card which maps to the data link and physical layer of the OSI model.
    Network – Corresponds to the network layer of the OSI model and includes the IP, ICMP, and IGMP protocols.
    Transport – Corresponds to the transport layer and includes the TCP and UDP protocols.
    Application – Corresponds to the OSI Session, Presentation and Application layers and includes FTP, Telnet, ping, Rlogin, rsh, TFTP, SMTP, SNMP, DNS, your program, etc.

More: http://en.wikipedia.org/wiki/Internet_protocol_suite

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