Hi @ptomasi
Yes, it's possible to configure that.
Actually, the obstacle of your question is how to configure the switch to interconnect the same network segment IP addresses in different VLANs.
Please refer to the configuration below:
### CE ###
#
interface GigabitEthernet0/0/1
port hybrid pvid vlan 2000
port hybrid tagged vlan 2000
#
interface Vlanif2000
ip address 10.1.1.2 255.255.255.252
#
### PE ###
#
interface GigabitEthernet0/0/1
port hybrid tagged vlan 1000
#
interface Vlanif1000
ip address 10.1.1.1 255.255.255.252
#
### Stacking Switch ###
#
interface GigabitEthernet0/0/1 //Connect to PE
port hybrid tagged vlan 1000
#
interface GigabitEthernet0/0/2 //Connect to CE
qinq vlan-translation enable
port hybrid tagged vlan 2000
port hybrid untagged vlan 1000
port vlan-stacking vlan 2000 stack-vlan 1000
#