native VLAN
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story in this section
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VLANs and Trunking Explained
What is a VLAN? It is a logical, software-based segmentation of a physical network, so devices on shared switches behave as separate networks and reach each other only through routing. A trunk carries several VLANs over one link by tagging frames, and a router or Layer 3 switch joins them. The sections below follow that…