Layer-7 network protocol functions & amp; TCP/IP protocol family

Source: Internet
Author: User

Layer-7 network protocol functions & layer functions in the TCP/IP family OSI TCP/IP protocol family Application Layer file transmission, email, file service, virtual terminal TFTP, HTTP, SNMP, FTP, SMTP, DNS, RIP, Telnet presentation layer data formatting, code conversion, data encryption no protocol Session Layer is removed or connections with other contacts are established no protocol Transport Layer provides end-to-end interface TCP, at the UDP network layer, select the Route IP address, ICMP, OSPF, BGP, IGMP, ARP, RARP for the data link layer, and transmit the address frames and the Error Detection Function SLIP, CSLIP, PPP, MTU, ARP and RARP physical layer transmit data in the physical media in the form of binary data ISO2110, IEEE802, and 802.2

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