LinkSchicht
LinkSchicht, commonly known as the data link layer, is the second layer of the OSI networking model. It governs the node-to-node transfer of data across a physical link and provides mechanisms to detect and sometimes correct errors introduced by the physical medium.
Its main responsibilities include framing of data into discrete units called frames, addressing of devices on
Many implementations divide the data link layer into two sublayers: the MAC (Media Access Control) sublayer
Examples of data link layer technologies include Ethernet (IEEE 802.3), Wi-Fi (IEEE 802.11), and point-to-point protocols
The data link layer interfaces with the physical layer below and the network layer above. It abstracts