Chapter 6: Data Link Layer

• Layer 2
• The data link layer is responsible for proper communication within the network components and for changing the data into the necessary format (electric voltage) for the physical layer.
• It is divided into two layers:
• Logical Link Control (LLC):
•  Communicate with the protocol immediately about it (network layer).
• Media Access Control (MAC)
• Have the appropriately loaded protocols to interface with the protocol requirements of the physical layer.