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How does an Ethernet switch dynamically build its address table?

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  1. From each received frame's source MAC
  2. From each frame's destination MAC
  3. From routers' IP routing tables

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References

  1. NVIDIA Cumulus Linux: Ethernet Bridging - VLANs docs.nvidia.com/networking-ethernet-software/cumulus-linux-518/Layer-2/Ethernet-Bridging-VLANs Checked 2026-10-11.

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