|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ä |
Physical
Layer
|
|
|
|
ä |
gets
the bits across wire
|
|
|
ä |
Data
Link Layer
|
|
|
|
ä |
provides
interface to physical layer
|
|
|
ä |
Network
Layer
|
|
|
|
ä |
lets
non-adjacent machines communicate
|
|
ä |
Transport
Layer
|
|
|
|
ä |
provides
interface to network layer
|
|
|
ä |
Session
Layer
|
|
|
|
ä |
structures
communication
|
|
|
ä |
Presentation
Layer
|
|
|
|
ä |
abstracts
communication
|
|
|
ä |
Application
Layer
|
|
|
|
ä |
provides
end-user services
|
|