OSI Reference Model
1. Physical Layer-- defines electrical & mechanical specification.
-- deals with cables, connection, and signalling options.
2. Data Link Layer-- responsible for error free transmission.
-- converts input data into data frame.
3. Network Layer-- responsible for hop to hop transmission.
--allows heterogeneous network to be interconnected.
4. Transport Layer-- provides end to end data transfer.
-- ensures that the pieces of data arrived in correct order.
5. Session Layer-- manage dialog control i.e. allow traffic in both direction.
-- another service is synchronization.
6. Presentation Layer-- concerned with syntax and semantics of information.
--responsible for encoding and decoding of data.
7. Application Layer-- supports remote job execution, file transfer, message transfer and virtual terminal etc.
-- supports function to control and supervise starte/maintain/stop of application program.
1. Physical Layer-- defines electrical & mechanical specification.
-- deals with cables, connection, and signalling options.
2. Data Link Layer-- responsible for error free transmission.
-- converts input data into data frame.
3. Network Layer-- responsible for hop to hop transmission.
--allows heterogeneous network to be interconnected.
4. Transport Layer-- provides end to end data transfer.
-- ensures that the pieces of data arrived in correct order.
5. Session Layer-- manage dialog control i.e. allow traffic in both direction.
-- another service is synchronization.
6. Presentation Layer-- concerned with syntax and semantics of information.
--responsible for encoding and decoding of data.
7. Application Layer-- supports remote job execution, file transfer, message transfer and virtual terminal etc.
-- supports function to control and supervise starte/maintain/stop of application program.
