OSI Model Layer 2: The Data Link Layer (MAC Addressing & Frames)

A diagram for the OSI Data Link Layer, illustrating MAC Address (with example), Data Frame, and Error Control functions on a circuit board background.

We’ve covered a lot in our OSI Model series! We’ve seen how the Network Layer (Layer 3) uses IP addresses to route data packets across vast global networks. But what happens when that data packet finally reaches its destination network? How does it make the crucial, final hop from one device to the very next […]