The MAC address is most frequently represented as 12 hexadecimal digits. The IEEE 802.3 Ethernet and 802.5 Token Ring protocols specify that the MAC sub-layer must supply a 48- bit (6 byte) address. The MAC sublayerĪlso communicates with the Logical Link Control ( LLC) sub-layerĪbove it allowing it to access and speak to the upper layer network protocols The MAC sublayer provides the means to access the the physical medium used for communication. That control the electricity transmitted and received on a copper wire are
Or radio frequencies) over the physical media. That handle communication with the physical media (copper wire, fiber opticĬable or the air) by controlling the communication signal (electricity, light On every network interface adaptor card there
The Media Access Control is often said to be a sub-layer of the OSIĭata Link layer.
