TCP/IP Model

TCP/IP Model

it is a networking model with a set of communication protocols for the Internet and similar networks.

Internet Protocol

provides basic communication.

Transmission Control Protocol

provides key functions that applications need.

INTERNET LAYER

is responsible for the delivery of service requests that respond from the transport layer and have them arrive at their destination through the “virtual network” image of the Internet.

NETWORK ACCESS LAYER

is also called the host-to-network layer, which is concerned with all of the issues that an IP packet requires to make a physical link to the network media. The network interface layer functionsinclude mapping the IP addresses to physical hardware addresses and encapsulation of IP packets.

TRANSPORT LAYER

is responsible for reliable end-to-end data delivery from the source host to the destination host.

APPLICATION LAYER

represents an interface through a variety of protocols that enable services to be applied to end-user application processes. These services include handling high-level protocols, issuing of representation, encoding, and dialog control.

APPLICATION LAYER, TRANSPORT LAYER, INTERNET LAYER, NETWORK ACCESS LAYER

enumerate the four layers