Bluetooth primarily operates on the Data Link Layer (Layer 2) of the OSI model. It handles the physical connection and data transfer between devices. While Bluetooth also interacts with other layers, its core functionality resides in Layer 2.
For example, Bluetooth's L2CAP (Logical Link Control and Adaptation Protocol) acts as the transport layer for data between devices. This allows Bluetooth to handle various higher-level protocols like authentication (pairing) and application profiles.
However, Bluetooth doesn't have a dedicated session layer like the OSI model. Instead, it relies on L2CAP to provide transport services.
Key takeaways:
- Bluetooth mainly operates on the Data Link Layer (Layer 2) of the OSI model.
- Bluetooth's L2CAP protocol handles data transport and allows interaction with other layers.
- While not a dedicated session layer, Bluetooth utilizes L2CAP to provide transport services.
