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Open Source Linux
Open Source Linux
Aug 17, 2022 · Fundamentals

Understanding QinQ (802.1Q in 802.1Q): Extending VLAN Space for Metro Ethernet

This article explains QinQ technology, its encapsulation structure, operation principles, basic and flexible implementations, campus network applications, and provides configuration examples with command‑line snippets for both basic and selective QinQ deployments.

EthernetNetwork EngineeringQinQ
0 likes · 14 min read
Understanding QinQ (802.1Q in 802.1Q): Extending VLAN Space for Metro Ethernet
Open Source Linux
Open Source Linux
Aug 4, 2022 · Fundamentals

Understanding QinQ: Double-Tag VLANs Explained for Network Engineers

This article explains how QinQ (IEEE 802.1ad) extends traditional VLANs with a second tag to overcome VLAN scalability limits, detailing its functions, implementation methods, packet format, and a step‑by‑step working example for service provider networks.

IEEE 802.1adLayer 2 VPNQinQ
0 likes · 6 min read
Understanding QinQ: Double-Tag VLANs Explained for Network Engineers
Open Source Linux
Open Source Linux
Jan 13, 2022 · Fundamentals

VLAN vs QinQ vs VXLAN: Which Virtual LAN Technology Wins?

This article explains the fundamentals of VLAN, QinQ, and VXLAN, compares their tagging methods, scalability, and use cases, and helps readers understand which virtual LAN technology best fits modern network and cloud environments.

Network VirtualizationQinQVLAN
0 likes · 9 min read
VLAN vs QinQ vs VXLAN: Which Virtual LAN Technology Wins?