H3C S5100-SI Operation Manual page 720

Employ the selective QinQ feature on Switch A and Switch B to differentiate traffic of PC users from
that of IP phone users, for the purpose of using QoS policies to guarantee higher priority for voice
traffic.
To reduce broadcast packets in the network, enable the inter-VLAN MAC address replicating
feature for selective QinQ.
Network diagram
Figure 2-2 Network diagram for selective QinQ configuration
Public Network
VLAN1000/VLAN1200
GE1/0/5
PC User
VLAN100~108
Configuration procedure
Configure Switch A.
# Create VLAN 1000, VLAN 1200 and VLAN 5 (the default VLAN of GigabitEthernet 1/0/3) on SwitchA.
<SwitchA> system-view
[SwitchA] vlan 1000
[SwitchA-vlan1000] quit
[SwitchA] vlan 1200
[SwitchA-vlan1200] quit
[SwitchA] vlan 5
[SwitchA-vlan5] quit
# Configure GigabitEthernet 1/0/5 as a hybrid port and not to remove VLAN tags when forwarding
packets of VLAN 5, VLAN 1000, and VLAN 1200.
[SwitchA] interface GigabitEthernet 1/0/5
[SwitchA-GigabitEthernet1/0/5] port link-type hybrid
[SwitchA-GigabitEthernet1/0/5] port hybrid vlan 5 1000 1200 tagged
[SwitchA-GigabitEthernet1/0/5] quit
GE1/0/12
GE1/0/11
GE1/0/13
SwitchA
GE1/0/3
IP Phone User
VLAN200~230
For PC User
VLAN100~108
SwitchB
For IP Phone
VLAN200~230
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