 |
|
 |
|
 |
|
|
|
|
|
|
Diagram
of the TCP/IP Model |
|
|
|
| |
| THE TCP/IP MODEL |
The TCP/IP model does not exactly match the OSI
model. There is no universal agreement regarding how to
describe TCP/IP with a layered model but it is generally
agreed that there are fewer levels than the seven layers of
the OSI model.
The four layer structure of TCP/IP is built as information is
passed down from applications to the physical network layer.
When data is sent, each layer treats all of the information it
receives from the layer above as data and adds control
information to the front of that data. This control
information is called a header, and the addition of a
header is called encapsulation. When data is received,
the opposite procedure takes place as each layer removes its
header before passing the data to the layer above.
|
|
|
|
|
Set as Home Page
Add to Favorites
Back to Home
