ZyXEL Communications metrogigabit switch Plumbing Product User Manual


 
Chapter 23 VLAN Stacking
MGS3700-12C User’s Guide
237
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 110 Advanced Application > VLAN Stacking > Selective QinQ
The following table describes the labels in this screen.
Table 65 Advanced Application > 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
Chapter 9 on page 117 for more background information on VLAN ID.