OSI Model Layers with Examples

Layer 7: Application e.g HL7, Modbus.

Layer 6: Presentation e.g TDI, ASCII, MIDI, MPEG.

Layer 5: Session e.g NetBIOS, SAP, Half Duplex, Full Duplex, Simplex.

Layer 4: Transport e.g nanoTCP, nanoUDP.

Layer 3: Network e.g Q.931.

Layer 2: Data Link 802.3 (Ethernet), 802.11a/b/g/n MAC/LLC, 802.1Q (VLAN), ATM, FDDI, Fibre Channel, Frame Relay, PPP, Q.921, Token Ring.

Layer 1: Physical e.g RS-232, T1, E1, 10BASE-T, 100BASE-TX, SDH,DSL, 802.11a/b/g/n PHY.