H3C SR8800 Configuration Manual page 142

[SwitchA-Ethernet1/2] qinq enable
[SwitchA-Ethernet1/2] quit
# Configure downlink port Ethernet 1/3.
[SwitchA] interface Ethernet 1/3
[SwitchA-Ethernet1/3] qinq enable
[SwitchA-Ethernet1/3] quit
# Assign downlink ports Ethernet 1/2 and Ethernet 1/3 to VLAN 100.
[SwitchA] vlan 100
[SwitchA-vlan100] port ethernet 1/2
[SwitchA-vlan100] port ethernet 1/3
Configure Switch B:
4.
# Assign port Ethernet 1/2 to VLAN 20.
<SwitchB> system-view
[SwitchB] vlan 20
[SwitchB-vlan20] port ethernet 1/2
[SwitchB-vlan20] quit
# Configure port Ethernet 1/1 as a trunk port and assign it to VLAN 20.
[SwitchB] interface ethernet 1/1
[SwitchB-Ethernet1/1] port link-type trunk
[SwitchB-Ethernet1/1] port trunk permit vlan 20
Configure Switch C:
5.
# Assign port Ethernet 1/2 to VLAN 10.
<SwitchC> system-view
[SwitchC] vlan 10
[SwitchC-vlan10] port ethernet 1/2
[SwitchC-vlan10] quit
# Configure Ethernet 1/1 as a trunk port and assign it to VLAN 10.
[SwitchC] interface ethernet 1/1
[SwitchC-Ethernet1/1] port link-type trunk
[SwitchC-Ethernet1/1] port trunk permit vlan 10
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