VLAN tagging

VLAN tagging is a method used in computer networks to identify and separate different groups of devices within the same physical network. Think of it like attaching a label or badge to data packets, indicating which virtual network they belong to. This allows network administrators to organize, prioritize, and secure traffic efficiently, even when multiple VLANs share the same physical infrastructure. VLAN tagging ensures that data from one group doesn't interfere with or get mixed up with data from another, providing both flexibility and security in managing network communications.