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Chapter 21 VLAN Stacking

GS3700/XGS3700 Series User’s Guide

182

21.4.2 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 107 Advanced Application > VLAN Stacking > Selective QinQ

The following table describes the labels in this screen.

Table 81 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 7 on page 87 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 this to create a new entry or to update an existing one.

This saves 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. Click on an index number to change the

settings.

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ZyXEL Communications GS3700 Series Guida Utente Pagina 182