xStack® DGS-3120 Series Managed Switch Web UI Reference Guide 
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Figure 4–23 Browse VLAN window 
 
Enter a page number and click the Go button to navigate to a specific page when multiple pages exist. 
 
NOTE: The abbreviations used on this page are Tagged Port (T), Untagged Port (U) and Forbidden 
Port (F). 
 
Show VLAN Ports 
Users can display the VLAN ports of the Switch's viewed by VID. Enter a Port or a Port List in the field at the top of 
the window and click the Find button. 
To view the following window, click L2 Features > VLAN > Show VLAN Ports, as show below: 
 
 
Figure 4–24 Show VLAN Ports window 
 
Click the View All button to display all the existing entries. 
Enter a page number and click the Go button to navigate to a specific page when multiple pages exist. 
 
 
QinQ (EI Mode Only) 
 
Double or Q-in-Q VLANs allow network providers to expand their VLAN configurations to place customer VLANs 
within a larger inclusive VLAN, which adds a new layer to the VLAN configuration. This basically lets large ISP's 
create L2 Virtual Private Networks and also create transparent LANs for their customers, which will connect two or