I want to transport Q-in-Q frame transparently using VMAN as a PBN. It means the packet would be triple tagged inside EXOS. Is EXOS supported that kind of feature? I could not find any related document that clearly define EXOS support triple tagged. In my lab setup, I can successfully transport Q-in-Q frame via VMAN and VPLS. Please check the attached screen capture. I want to make sure it's fully supported feature before I deploy in production network.