Tuesday, November 17, 2009

The OSI Model


OSI Model
Data unit Layer Function
Host
layers
Data 7. Application Network process to application
6. Presentation Data representation and encryption
5. Session Interhost communication
Segment 4. Transport End-to-end connections and reliability
Media
layers
Packet 3. Network Path determination and logical addressing
Frame 2. Data Link Physical addressing
Bit 1. Physical Media, signal and binary transmission

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