OSIMODEL

OSIMODEL

(ISO  Invent)

Open System Interconnection

Number 7-1 is called In capsulation

Number 1-7 is called  DE capsulation

WEB SERVICES

Source Port : 33325                                           Source Port : 80

Destination Port : 80                                         Destination Port: 33325

Define Layers

Physical layers :

 

·       Binary Transmission : Physical layers define the electric, Mechanical  procedural and Specification for activating  maintaining and deactivating the Physical link.

DATA  LINK LAYERS :

·       Access to media : Data link define how data is formatted for transmission and how access to the network is control.

NETWORK LAYERS :

·       Data Delivery

1.     Routers data packets

2.     Select best part to deliver data

3.     Provide logical addressing and path selection

TRANSPORT LAYERS:

End to End connection

1.     Handle transportation issue between host

2.     Insure data transport reliability and flow control

3.     Establishes, Montanan and Terminate Virtual  Circuits

SESSION LAYERS:

Inter Host Communication

Establishes, Managers and Terminate Session between Application.

PRESENTATION LAYERS:

Data Representation

1.     Formatting and Structuring Data.

2.     Negotiate Data transferred SYNTEX and APPLICATION layers

3.     Provide CRYPTION

APPLICATION LAYERS:

Network Process to Application

1.     Provides network services to application processes such as Email, File transferred and terminal emulation.

2.     Provides user authentication