TCP/IP protocol layer model

** Application Layer ** data

BitTorrent: a popular P2P protocol.

DNS: domain name system, an Internet core service that maps domain names to IP addresses.

DHCP: Dynamic Host Configuration Protocol, LAN protocol, mainly used:

(1) automatically assign IP addresses to internal networks or network service providers.

(2) give internal network administrators central management measures for all computers

FTP: File Transfer Protocol, file transfer protocol.

TFTP: (Trivial File Transfer Protocol), simple File Transfer Protocol or small file transfer protocol, is a simplified FTP.

HTTP: Hypertext Transfer Protocol, Hypertext Transfer protocol.

IMAP: Internet Message Access Protocol, interactive mail access protocol.

It is used to access emails on a remote server from a local email client (such as Microsoft Outlook, Foxmail, and Mozilla Thunderbird.

POP3: The full name is "Post Office Protocol-Version 3", that is, "Post Office Protocol Version 3 ".

This Protocol is mainly used to support remote management of emails on the server using the client. The POP3 protocol that provides SSL encryption is called pop3s.

SMTP: Simple Mail Transfer Protocol is a de facto standard for email transmission over the Internet.

NFS: Network File System (NFS) is a way to share disk files between UNIX systems,

It supports a file system protocol that allows applications to access data on the server disk over the network on the client.

SNMP: Simple Network Management Protocol ).

SSH: Secure Shell, which is a security protocol created on the application layer and transport layer.

TELNET: it is the standard protocol and main method for the Internet remote login service. It provides users with the ability to complete remote host work on local computers.

Border Gateway Protocol (BGP) is the core routing protocol of the Internet.

Rip: routing information protoco is the most widely used Internal Gateway Protocol (IGP ).

RPC: Remote Procedure Call is a computer communication protocol.

This protocol allows programs running on one computer to call the subroutines of another computer, and programmers do not need to program this interaction.

** Transport layer ** Segment segment

TCP: the transmission control protocol is a connection-oriented, reliable, and byte-stream-based transport layer communication protocol.

UDP: User datagrams protocol is a simple datagram-oriented transport layer protocol.

OSPF: Open Shortest Path First (Open Shortest Path First) is an implementation of the Link State routing protocol. It is affiliated with the Internal Gateway Protocol (IGP) and therefore operates in the autonomous system.

** Network layer **: group Packet

IP: it is divided into IPv4 and IPv6.

ICMP: the Internet Control Message Protocol is used to send control messages in TCP/IP networks,

Provide feedback on various problems that may occur in the communication environment. With this information, managers can diagnose the problems and take appropriate measures to solve them.

IGMP: Internet group management protocol is a communication protocol used to manage multicast group members of the Internet protocol.

IPSec: Internet Protocol Security is a network transmission protocol family (a set of associated protocols) that protects IP protocol by encrypting and authenticating IP protocol (Internet Protocol) groups ).

** Data link layer ** Frame

ARP :( Address Resolution Protocol), or Address Resolution Protocol.

The basic function of ARP is to query the MAC address of the target device through the IP address of the target device to ensure smooth communication.

RARP: (reverse address translation protocol, Reverse Address Resolution Protocol) is a network protocol used to convert MAC addresses to IP addresses.

PPP: point-to-point protocols (PPP) work on the data link layer (using the OSI reference model ). It is usually used to create a direct connection between two nodes.

** Physical layer ** bit

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Protocol running on UDP: SNMP Telnet tftp dns dhcp rip

For more information, see: http://en.wikipedia.org/wiki/Tcp/ip

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