SESSION LAYER

FROM :-ADIL FAISALMATANGI KUMARI JHAMD. SADDAM HUSSAIN

Why layer architecture came into existence?

• Complex problems decomposed into small unit.

• Modularity and clear network interface.

OSI MODEL ARCHITECTURE

Open System Interconnect (OSI) is an open standard for all communication system .

OSI model is established by international standard organization (ISO).This model contains seven layers.

• Physical layer Data link layer

Network layer Transport layer

Session layer Presentation layer

Application layer

SESSION LAYER

The session layer controls the dialogues (connections) between computers. It establishes, manages and terminates the connections between the local and remote application.

WHY THIS PROTOCOL IS USED?

An example of session layer protocol is OSI PROTOCOL SUITE also known as ISO 8327 or X.225 and ISO 9548 or X.235.

PURPOSE OF SESSION LAYER

Purpose of session layer is to assist in support of the interaction between co-operating presentation entities.which are classified in two categories.

1. Session Administration Service and 2. Session Dialogue Service.

APPLICATION OF SESSION

• COOKIES SESSION• PHP SESSION

TCP/IP MODEL OVER OSI MODEL

CONCLUSIONS

SESSION LAYER IS MAINLY RESPONSIBLE FOR COMMUNICATION BETWEEN TWO NODES. WITH IN COMPLITION OF THE SESSION OF COMMUNICATION.OSI MODEL WAS OUT OF THE MODERN NETWORK BASICALLY WE USED TCP/ IP MODEL.

THANK YOU