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Ethernet MAC Learning

Watch a switch learn source MACs, flood unknown unicast, isolate VLANs, and block loops with spanning tree.

SwitchVLAN 10Host Aport 7Host Bport 12frameMAC table70:4d:7b:aa:11:29 -> port 7unknown unicast flood
Step 1 / 4Unknown destination means flood

The switch learns the source MAC on ingress, but if it does not know the destination yet it floods within the VLAN.

Arrow keys to navigate · R to reset

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