MAC SUBLAYER
( Medium Access Control Sublayer)
Data link layer consists of to sublayers LLC Sublayer or Logical Link Control
Sublayer and Medium Access Control Sublayer in OSI model. LLC Sublayers are
used to connect point to point networks and that to access the internet from
wide area network. MAC protocols are used to allocate a common
transmission medium / channel among multiple stations to get maximum
utilization over wired Local Area Network (LAN) and Wireless LAN (Wi-Fi).
The figure above, wifi network where common transmission medium and
multiple stations tries to get the access of Access point. This stations are
completely unaware about who will go next and it is the challenge for
engineering to share the channel among the multiple stations and if any
contesions occured to resolve it.
