IEEE 802.1Q Tunneling (Q-in-Q)

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IEEE 802.1Q Tunneling (Q-in-Q) – A double-VLAN-tagging standard that lets service providers separate customer traffic with overlapping VLAN IDs, configurable as inner VLAN tagging on Versa WAN and LAN interfaces. See: Configure Q-in-Q Inner VLAN Tagging in Concerto, Configure Interfaces