2.1
Identify a MAC (Media Access Control) address and its parts.
Every device on
the network must have a unique MAC address to ensure proper receiving and transmission
of data. The MAC address is a device's actual physical address, which is
usually designated by the manufacturer of the device
Medium Access
Control sublayer Operations The purpose of the MAC sublayer is to determine
when each frame should be passed on to the physical layer to be transmitted as
a data signal over the network. The MAC sublayer governs which devices have
permission to transmit data over the network and when. There are four basic
methods for controlling access to the network, polling, contention, token
passing, and switching.
The data link
layer is divided into two sublayers: The Media Access Control (MAC) layer and
the Logical Link Control (LLC) layer. The MAC sublayer controls how a computer
on the network gains access to the data and permission to transmit it. The LLC
layer controls frame synchronization, flow control and error checking.
