Various Layers of TCP IP: Basics

Various Layers of the TCP/IP Reference model – Read about its functions, structure and uses.

Various Layers of TCP/IP

• Physical layer: This layer incudes the actual physical aspect of the network i.e. physical data cables and telephone wires.
• Link layer: Almost all networks use Ethernet. Each machine in a network has its own IP address and its ether address. It tells the network which computer to deliver the datagram to and for this the ether header is used.
• Network Layer: Responsible for transporting the datagram to the destination server. This layer does not do any error checking.
• Transport Layer: Responsible for breaking up the data into smaller datagrams and putting them back to usable data at the destination.
• Application Layer: Includes the actual applications like FTP client, browser and others. This is the visible layer