Selective Q-In-Q - ZyXEL Communications VES1724-56 User Manual

Chapter 23 VLAN Stacking

23.4.2 Selective Q-in-Q

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.
Figure 128 VLAN Stacking > Selective QinQ
The following table describes the labels in this screen.
Table 93 VLAN Stacking > Selective QinQ
LABEL DESCRIPTION
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
information on VLAN ID.
Priority Select the Active checkbox and a priority level (from 0 to 7). This is the service provider's priority
level that adds to the frames received on this port. If you clear the Active checkbox, the SPVID
priority will be 0.
"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.
214
Chapter 10 on page 129 for more background
VES1724-56 User's Guide