Read so many, TCP / IP What is (a)

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"This article explains TCP / IP protocol suite  ."

We usually understand the TCP / IP protocol may be single, but in fact not the case, TCP / IP is a protocol suite, there is an agreement it contains all aspects of responsible. In simple terms, TCP / IP is a general agreement that the group must be used when using IP to communicate.

The Internet is the fusion of many network communication technology made, and TCP / IP is one of the most important part.

In the 1970s, an agency of the ARPANET developed the TCP / IP and in 1982 officially identified specific specifications of TCP / IP, Unix was the first to realize the TCP / IP protocol.

 IP, ICMP, TCP or UDP, HTTP belong to the TCP / IP protocol . Their relationship with the TCP or IP tight, TCP / IP refers to these agreements, they are also known TCP / IP protocol suite.

TCP / IP protocol suite
TCP / IP protocol suite

 

In order to promote the standardization of protocols, ISO international standard specifies an OSI. OSI is divided into seven levels, each level has its own function, TCP transport layer belonging to Layer 4.

OSI Reference Model

 

TCP, Transmission Control Protocol is the abbreviation, the Chinese called Transmission Control Protocol. As the name of the same transmission and control, it is sufficient transmission control, can automatically detect and retransmission packet loss, but also out of order packets may be sorted splicing (seq, ack). While TCP is a connection-oriented protocol there, what connection do, and the other is the need to establish further connections will send data to interact, which is different from the UDP.

Data transmission may be damaged, lost, duplicated, ordered chaos, TCP checksum, and through, the serial number, acknowledgment, retransmission control, connection management and other window control mechanisms to achieve reliable transmission.

TCP Depending on the application, is responsible for establishing the connection, send data, and disconnect. TCP provides transmission data sent from the application layer to the reliable transmission of a sequence end.

English abbreviations explained:

  • TCP: Transmission Control Protocol Transmission Control Protocol

  • IP: Internet Protocol Internet Protocol

  • UDP: User Datagram Protocol User Datagram Protocol

  • HTTP: HyperText Transfer Protocol Hypertext Transfer Protocol

  • SMTP: Simple Mail Transfer Protocol Simple Mail Transfer Protocol 

  • FTP: File Transfer Protocol File Transfer Protocol

  • Telnet: Internet protocol standard remote login service

  • SNMP: Simple Network Management Protocol SNMP

  • ICMP: Internet Control Message Protocol Internet Control Message Protocol

  • ARP: Address Resolution Protocol ARP

  • RIP: Routing Information Protocol Routing Information Protocol, is a dynamic routing protocol

  • OSPF: Open Shortest Path First Open Shortest Path First

  • BGP: Border Gateway Protocol Border Gateway Protocol

  • ARPANET: Advanced Research Projects Agency Network US Advanced Research Projects Agency

  • ISO: International Organization for Standardization

  • OSI: Open Systems Interconnection Reference Model

  • RFC: Request For Comment is a series of numbers scheduled files, almost all Internet standards are included in the RFC documents

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