Add transported VLANS to L2VPN

[VEEC023]

I would like to discuss the following idea:

We have the case that we have several L2VPNs (EPL) and we want to document them. We are transporting VLANs in these L2VPNs to terminate PPPoE customers and now we want to find out at which Router(BNG) the customers terminate, based on the VLAN ID. This is currently only possible if we switch to a VPLS and add the VLANS as terminations, then we see which L2VPN is assigned under VLANS.

My question is, would it make sense to be able to attach a kind of service or VLAN directly to the L2VPN and not only to the terminations? After that you would have the possibility to document the VLAN/s that are transported within the L2VPN.