3Com 7757 Configuration Manual page 162

162 C 19: Q Q C
HAPTER IN ONFIGURATION
Network diagram
Figure 46 Network diagram for QinQ configuration
Eth2 /0/1(access VLAN 10, VLAN VPN port)
Switch A
Eth2 /0/2 (trunk permit VLAN 10)
Eth2 /1/2 (trunk permit VLAN 10)
Switch B
Eth2 /1/1 (trunk permit VLAN 10)
Eth2/0 /2 (trunk permit VLAN 10)
Switch C
Eth2/0 /1 (access VLAN 10, VLAN VPN port)
Configuration procedure
1 Configure Switch A and Switch C.
As the configuration performed on Switch A and Switch C is the same,
configuration on Switch C is omitted.
# Configure Ethernet2/0/2 port as a trunk port. Add the port to VLAN 10.
<SwitchA> system-view
[SwitchA] vlan 10
[SwitchA-vlan10] quit
[SwitchA] interface Ethernet2/0/2
[SwitchA-Ethernet2/0/2] port link-type trunk
[SwitchA-Ethernet2/0/2] port trunk permit vlan 10
# Enable QinQ for Ethernet2/0/1 port. Add the port to VLAN 10.
[SwitchA-Ethernet2/0/2] quit
[SwitchA] interface Ethernet2/0/1
[SwitchA-Ethernet2/0/1] port access vlan 10
[SwitchA-Ethernet2/0/1] stp disable
[SwitchA-Ethernet2/0/1] undo ntdp enable
[SwitchA-Ethernet2/0/1] vlan-vpn enable
[SwitchA-Ethernet2/0/1] quit
2 Configure Switch B.
Configure Ethernet2/0/1 port and Ethernet2/0/2 port as trunk ports. Add the two
ports to VLAN 10.
<SwitchB> system-view
[SwitchB] vlan 10
[SwitchB-vlan10] quit
[SwitchB] interface Ethernet 2/0/1
[SwitchB-Ethernet2/0/1] port link-type trunk
[SwitchB-Ethernet2/0/1] port trunk permit vlan 10
[SwitchB-Ethernet2/0/1] quit
[SwitchB] interface Ethernet 2/0/2
[SwitchB-Ethernet2/0/2] port link-type trunk
[SwitchB-Ethernet2/0/2] port trunk permit vlan 10