Cisco SGE2000 - Cisco - Gigabit Switch - Defining Customer Vlans Using Qinq

Configuring VLANs
Defining Customer VLANs Using QinQ
Cisco Small Business SFE/SGE Managed Switches Administration Guide 180
6
Defining Customer VLANs Using QinQ
QinQ, also known as Double Tagging, allows network managers to add an
additional tag to previously tagged packets received from ports that are in
Customer Interface VLAN mode, therefore creating more VLAN space and
expanding service to VLAN users. The additional tag is inserted into packets
received from the customer ports before the packets are transmitted into
Multicast TV VLAN through the service provider network.
The
VLAN Interface Setting Page provides parameters defining VLANs supporting
QinQ.
To define VLANs supporting QinQ:
STEP 1 Click Bridging > VLAN Management > Interface Setting. The VLAN Interface
Setting Page
opens.
STEP 2 For the relevant interface, click Edit. The Edit VLAN Ports Page opens.
STEP 3 Set the VLAN Mode field to Customer.
STEP 4 Define the PVID field.
STEP 5 Click Apply. The VLAN interface settings are saved, and the device is updated.