H3C S5100-SI

2-3
Operation Command Description
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.
You are not recommended to configure both the DHCP snooping and selective Q-in-Q function on the
switch, which may result in the DHCP snooping to function abnormally.
Configuring the Inner-to-Outer Tag Priority Mapping Feature
Configuration Prerequisites
Enabling the VLAN-VPN feature on the current port
Configuration Procedure
Table 2-2 Configure the inner-to-outer tag priority mapping feature
Operation Command Description
Enter system view
system-view
—
Enter Ethernet port view
interface interface-type
interface-number
—
Enable the inner-to-outer tag
priority mapping feature and
create a priority mapping
vlan-vpn priority
old-priority remark
new-priority
Required
By default, the inner-to-outer tag
priority mapping feature is not enabled.
Selective QinQ Configuration Example
Processing Private Network Packets by Their Types
Network requirements
z GigabitEthernet 1/0/3 of Switch A provides public network access for PC users and IP phone users.
PC users belong to VLAN 100 through VLAN 108, and IP phone users belong to VLAN 200 through
VLAN 230. GigabitEthernet 1/0/5 of Switch A is connected to the public network. The peer end of
Switch A is Switch B.
z GigabitEthernet 1/0/11 of Switch B is connected to the public network. GigabitEthernet 1/0/12 and
GigabitEthernet1/0/13 of Switch B provide network access for PC servers belonging to VLAN 100
through VLAN 108 and voice gateways (for IP phone users) belonging to VLAN 200 through VLAN
230 respectively.
z The public network permits packets of VLAN 1000 and VLAN 1200. Apply QoS policies for these
packets to reserve bandwidth for packets of VLAN 1200. That is, packets of VLAN 1200 have
higher transmission priority over packets of VLAN 1000.