Learn the TCP/IP model

      The TCP/IP model consists of two different protocols. The TCP is a protocol and the IP is an another protocol. TCP/IP is based on a four-layer reference model. All protocols that belong to the TCP/IP protocol suite are located in the top three layers of this model.

         As shown in the following illustration, each layer of the TCP/IP model corresponds to one or more layers of the seven-layer Open Systems Interconnection (OSI) reference model proposed by the International Standards Organization (ISO).

Application Layer :Defines TCP/IP application protocols and how host programs interface with transport layer services to use the network.

Protocols : HTTP, Telnet, FTP, TFTP, SNMP, DNS, SMTP, X Windows, other application protocols

Transport Layer : Provides communication session management between host computers. Defines the level of service and status of the connection used when transporting data.

Protocols - TCP, UDP, RTP

Internet Layer :  Packages data into IP datagrams, which contain source and destination address information that is used to forward the datagrams between hosts and across networks. Performs routing of IP datagrams.

Protocols :IP, ICMP, ARP, RARP

Network Interface Layer : Specifies details of how data is physically sent through the network, including how bits are electrically signaled by hardware devices that interface directly with a network medium, such as coaxial cable, optical fiber, or twisted-pair copper wire.

Protocols : Ethernet, Token Ring, FDDI, X.25, Frame Relay, RS-232, v.35

---------------------------------------------------------------------------------------

TCP/IP utilities

To assist with the management of TCP/IP, there are three types of TCP/IP-based utilities:

• Connectivity utilities that you can use to interact with and use resources on a variety of Microsoft® and non-Microsoft hosts, such as UNIX systems.
  
• Diagnostic utilities that you can use to detect and resolve networking problems.
  
• TCP/IP server software that provides printing and publishing services to TCP/IP-based Microsoft Windows® clients.

----------------------------------------------------------------------------------------

TCP (Transmission Control Protocol) Video Lecture

TCP/IP- Video Leccture (Part 1)

TCP/IP - Video Lecture (Part 2)

  

TCP/IP - Video Lecture (Part 3)

TCP/IP - I

TCP/IP - II