VLAN > Tunnel

IEEE 802.1Q Tunneling (QinQ) is designed for service providers carrying traffic for multiple customers across their networks. QinQ tunneling is used to maintain customer-specific VLAN and Layer 2 protocol configurations even when different customers use the same internal VLAN IDs. This is accomplished by inserting Service Provider VLAN (SPVLAN) tags into the customer‘s frames when they enter the service provider‘s network, and then stripping the tags when the frames leave the network.

Enabling QinQ Tunneling on the Switch

Use the VLAN > Tunnel (Configure Global) page to configure the switch to operate in IEEE 802.1Q (QinQ) tunneling mode, which is used for passing Layer 2 traffic across a service providerˇ¦s metropolitan area network. You can also globally set the Tag Protocol Identifier (TPID) value of the tunnel port if the attached client is using a nonstandard 2-byte ethertype to identify 802.1Q tagged frames.

Creating CVLAN to SPVLAN Mapping Entries

Use the VLAN > Tunnel (Configure Service) page to create a CVLAN to SPVLAN mapping entry.

Command Usage

Command Parameters

Adding an Interface to a QinQ Tunnel

Follow the guidelines under "Enabling QinQ Tunneling on the Switch" to set up a QinQ tunnel on the switch. Then use the VLAN > Tunnel (Configure Interface) page to set the tunnel mode for any participating interface.

Command Usage

Command Parameters