1.6.1 How the G3 ADP MAC driver works

The G3 ADP MAC layer acts as just an interface between the TCPIP stack and the G3 Stack via the G3 Adaptation layer, which is documented on g3_adaptation_layer_description.

g3_adp_mac_abstraction — Figure . G3 ADP MAC Abstraction Model

This G3 ADP MAC layer does not provide any additional capability such as data encapsulation or media access management. In the seven-layer OSI model of computer networking, media access control (MAC) data communication protocol is a sub-layer of the data link_layer, which itself is layer_2. The MAC sub-layer provides addressing and channel access control mechanisms that make it possible for several terminals or network nodes to communicate within a multiple access network that incorporates a shared medium (e.g., Ethernet). The G3 stack is in charge to implement all these MAC functionalities even more according to the G3 specification.