We recently added a service provider that will provide us with Provider UNI's to each of our customer sites. They will carry traffic across there backbone and pop/remove their S-vlan at each site and each site has a unique S-vlan tag. All customer sites Metro circuits terminate at our main site and we need to install a device on our end that also pops/removes the S-vlan and forwards all C-vlan traffic to our core network on one port (trunked). Each site carrys vlans that are unique and do not repeat at any other site.
Our Site A >>> (UNI) > Provider Network > (ENNI HANDOFF) >>> ME3600X >>> Our Core Switch
We would like to minimize the number of physical ports used from the ME3600x to the core switch ideally to one or two ports (port channel) and not use a physical port for each and every S-vlan we need to pop at the core side.
Can the ME3600x do the job or is there another cost efficient Cisco device that can achieve these results? Also any suggestions on how the ME3600X would be configured to achieve this. I have attached a diagram to enhance the explanation further.
This is my first post and hopefully I explained it to my best ability here. 
I actually read that link some time ago and thank you for providing it. Essentially our provider is terminating all of our branch sites and removing the S-Tag before the traffic hits the egress. On our core end however they are not doing the same. We need a hybrid of customer/provider piece of equipment that can receive on one port ingress all of the S-VLANs from the branch sites and on another port egress the C-VLANs in a trunk to our core. The hyperlink you provided only shows one side (QinQ as a customer end or QinQ as a provider end). I am looking for an example where you are in between as half customer half provider on one switch. I have attached another picture to illustrate.
