H3C Technologies H3C WX3000 Series Unified Switches - Manual (Page 575)

57-2
To guarantee the quality of voice packet transmission, you can configure QoS policies in the public
network to reserve bandwidth for packets of VLAN 1002 and forward them preferentially.
In this way, you can configure different forwarding policies for data of different type of users, thus
improving the flexibility of network management. On the other hand, network resources are well utilized,
and users of the same type are also isolated by their inner VLAN tags. This helps to improve network
security.
Inner-to-Outer Tag Priority Mapping
As shown in Figure 56-3 , the user priority field is the 802.1p priority of the tag. The value of this 3-bit
field is in the range 0 to 7. By configuring inner-to-outer tag priority mapping for a VLAN-VPN-enabled
port, you can assign outer tags of different priorities to packets according to their inner tag priorities.
Refer to QoS-QoS profile in H3C WX3000 Series Unified Switches Switching Engine Configuration
Guide for information about priority.
Selective QinQ Configuration
Configuration Task List
Complete the following tasks to configure selective QinQ:
Task Remarks
Enabling the Selective QinQ Feature for a Port Required
Configuring the Inner-to-Outer Tag Priority Mapping Feature Optional
Enabling the Selective QinQ Feature for a Port
The following configurations are required for the selective QinQ feature:
z
Enabling the VLAN-VPN feature on the current port
z
Configuring the current port to permit packets of specific VLANs (the VLANs whose tags are to be
used as the outer VLAN tags are required)
Follow these steps to enable the selective QinQ feature:
To do… Use the command… Remarks
Enter system view system-view —
Enter Ethernet port view
interface interface-type
interface-number
—
Configure the outer VLAN tag
and enter QinQ view
vlan-vpn vid vlan-id Required
Configure to add outer VLAN
tags to the packets with the
specific inner VLAN tags
raw-vlan-id inbound
vlan-id-list
Required
By default, the feature of adding an outer
VLAN tag to the packets with the specific
inner VLAN tags is disabled.