Vlan Stacking; Figure 120 Ethernet Port Configuration: Vlan Stacking; Table 85 Ethernet Port Configuration: Port Mirroring - ZyXEL Communications Version 1.03 User Manual

Chapter 16 Ethernet Port Configuration
The following table describes the fields in this screen.

Table 85 Ethernet Port Configuration: Port Mirroring

LABEL
Mirrored
Direction
Apply

16.8 VLAN Stacking

A service provider can use VLAN stacking to allow it to distinguish multiple customers
VLANs, even those with the same (customer-assigned) VLAN ID, within its network.
Use VLAN stacking to add an outer VLAN tag to the inner IEEE 802.1Q tagged frames that
enter the network. By tagging the tagged frames ("double-tagged" frames), the service
provider can manage up to 4,094 VLAN groups with each group containing up to 4,094
customer VLANs. This allows a service provider to provide different service, based on
specific VLANs, for many different customers.
A service provider's customers may require a range of VLANs to handle multiple applications.
A service provider's customers can assign their own inner VLAN tags on ports for these
applications. The service provider can assign an outer VLAN tag for each customer.
Therefore, there is no VLAN tag overlap among customers, so traffic from different customers
is kept separate.
To open the VLAN Stacking screen, right-click on the switch in the Device List Panel, and
click Configuration > Ethernet Port > VLAN Stacking. Then select a device and the port(s)
to which you want to apply this configuration.

Figure 120 Ethernet Port Configuration: VLAN Stacking

170
DESCRIPTION
Select this option to mirror the traffic on a port.
Specify the direction of the traffic to mirror. Select Egress (outgoing), Ingress (incoming)
or Both from the drop-down list box.
Click Apply to save the changes.
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