H3C Technologies H3C S12500 Series Switches - Manual (Page 161)

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[ProviderA-GigabitEthernet4/0/1] port hybrid vlan 100 untagged
# Apply the uplink policy to the inbound direction of GigabitEthernet 4/0/1.
[ProviderA-GigabitEthernet4/0/1] qos apply policy nest inbound
[ProviderA-GigabitEthernet4/0/1] quit
# Configure port GigabitEthernet 4/0/2 to allow frames of VLAN 100 to pass through.
[ProviderA] interface gigabitethernet 4/0/2
[ProviderA-GigabitEthernet4/0/2] port link-type trunk
[ProviderA-GigabitEthernet4/0/2] port trunk permit vlan 100
2. Configure Provider B as you configure Provider A.