KB.15.15

Changes to parameters when QinQ is enabled:

VLAN ID Field name changes from 802.1Q VLAN ID to VLAN ID only.

Type In a QinQ enabled environment, the VLAN type can be either a regular

customer VLAN CVLAN, or it can be a tunnel VLAN in the provider

network S-VLAN.

Figure 81 Viewing show vlan output with QinQ enabled

Viewing the VLAN membership of one or more ports

This command shows to which VLAN a port belongs. Once QinQ is enabled, an additional field

showing the VLAN Type is added to the display output.

Syntax:

show vlans vlan-id

Changes to parameters when QinQ is enabled:

VLAN ID Field name changes from 802.1Q VLAN ID to VLAN ID only.

Type In a QinQ enabled environment, the VLAN type can be either a regular

customer VLAN CVLAN, or it can be a tunnel VLAN in the provider

network S-VLAN.

Figure 82 Viewing VLAN membership

Viewing spanning tree status

In QinQ mixed mode, only ports that are members of C-VLANs will be displayed in show

spanning tree output. This is due to the fact that ports that are members of S-VLANs do not

participate in C-VLAN spanning tree and will always be in forwarding state (treated as edge ports).

332 QinQ (Provider bridging)