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How Network Switches Learn MAC Addresses
We know switches connect devices, but how does a switch actually know where to send data? It starts with a MAC address—a unique digital ID card for every network interface. When data arrives, the switch examines the source MAC and records which port it came from. If the destination is known, the switch sends the frame directly to that specific device.
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We know switches connect devices, but how does a switch actually know where to send data? It starts with a MAC address—a unique digital ID card for every network interface. When data arrives, the switch examines the source MAC and records which port it came from. If the destination is known, the switch sends the frame directly to that specific device.
