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What is VLAN Data Forwarding?
VLAN Data Forwarding is the process of directing network traffic between devices within a Virtual Local Area Network (VLAN). When a packet is sent within a VLAN, it is forwarded based on the VLAN tag. Layer 2 switches use this tag to ensure that the data only reaches devices within the same VLAN, effectively isolating traffic between VLANs. For communication between different VLANs, a router or Layer 3 switch is needed to perform inter-VLAN routing. VLAN data forwarding improves network efficiency by reducing broadcast traffic and ensuring that devices within a VLAN can communicate seamlessly.