Layer Na me
Encapsulation
Segment Packet Frame Bits
Layer No. Function Examples
Layer 7 |
Application Interface to NetWork |
Telnet HTTP |
Layer 6 |
Encryption and Other Processing |
JPEG ASCII7 |
Layer 5 |
Manages Multiple Applications |
OS Scheduling |
| Layer 4 |
Provides Reliable and Unreliable Delivery and Error Correction |
TCP UDP |
Application Presentation Session Transport NetWork Data Link Physical
2
I Routers
Layer 3 |
Provides Logical Addressing Used by Routers |
IP IPX |
Layer 2 |
Access Endpoints with MAC Address Error Detection Correction |
802/3 HDLC |
Layer 1 |
Specifies Voltage, Wire Speed, and Pin-Out Cables |
El ATI A -232 V.35 |
Switches