ZyXEL Communications MES3500-24F User Manual

Chapter 23 VLAN Stacking

MES3500-24/24F User’s Guide

Selective Q-in-Q is VLAN-based. It allows the Switch to add different outer VLAN tags to the 
incoming frames received on one port according to their inner VLAN tags.

Note: Selective Q-in-Q rules are only applied to single-tagged frames received on the 

access ports. If the incoming frames are untagged or single-tagged but received on 

a tunnel port or cannot match any selective Q-in-Q rules, the Switch applies the 

port-based Q-in-Q rules to them.

Click Selective QinQ in the Advanced Application > VLAN Stacking screen to display the 
screen as shown.

Advanced Application > VLAN Stacking > Selective QinQ 

The following table describes the labels in this screen. 

Advanced Application > VLAN Stacking > Selective QinQ

Active

Check this box to activate this rule. 

Name

Enter a descriptive name (up to 32 printable ASCII characters) for identification purposes. 

Port

The port number identifies the port you are configuring.

CVID

Enter a customer VLAN ID (the inner VLAN tag) from 1 to 4094. This is the VLAN tag carried in the 
packets from the subscribers.

SPVID

SPVID is the service provider’s VLAN ID (the outer VLAN tag). Enter the service provider ID (from 
1 to 4094) for frames received on this port. See 

 for more background 

information on VLAN ID.

Priority

Select a priority level (from 0 to 7). This is the service provider’s priority level that adds to the 
frames received on this port.

"0" is the lowest priority level and "7" is the highest.

Add

Click Add to save your changes to the Switch’s run-time memory. The Switch loses these changes 
if it is turned off or loses power, so use the Save link on the top navigation panel to save your 
changes to the non-volatile memory when you are done configuring.

Cancel

Click Cancel to begin configuring this screen afresh.

Index

This is the number of the selective VLAN stacking rule.