Source: https://www.geeksforgeeks.org/computer-networks/data-link-layer/

====== The Data Link Layer ======

The data link layer is the second layer from the bottom in the [[osi_model|OSI model]]. It transfers data between nodes on a [[network|network]] segment across the [[network-layer_physical|physical layer]].

It deals with the delivery of frames on the same level of network.

==== Functions ====

  - Framing
  - Error detection
  - Error correction
  - Flow control
  - Addressing ([[mac-address|MAC addresses]])

==== Devices ====

  * [[network-switch|Switches]]
  * [[network-bridge|Bridges]]
  * Network Interface Cards
  * [[network-wireless_access_point|Wireless Access Points]]