In IEEE 802 LAN/MAN standards, the medium access control (MAC, also called media access control[1]) sublayer is the layer that controls the hardware responsible for interaction with the wired, optical or wireless transmission medium. The MAC sublayer and the logical link control (LLC) sublayer together make up the data link layer. Within the data link layer, the LLC provides flow control and multiplexing for the logical link (i.e. EtherType, 802.1Q VLAN tag etc), while the MAC provides flow control and multiplexing for the transmission medium. 0:00 - Introduction 2:48 - Random Access Protocol 5:24 - Control Access 6:49 - Channelization Protocol