Hi there,
It is possible to transport QinQ across EoMPLS.
EoMPLS can operate in two modes: port-tunneling mode and VLAN-tunneling mode.Port-tunneling is also referred to as port-to-port transport which supports QinQ.
Here are some more details.This type of transport defines one of the Metro Ethernet Services called Ethernet Wire Service (EWS).
EWS is a non-multiplexed point-to-point service.It is P2P as it resembles a PVC.It is a wire service as a port does not have multiplexing. A customer port connects to a single remote customer port. This is similar to a leased line.
EWS counterpart is Ethernet relay service which is VLAN multiplexed P2P service.In ERS service multiplexing is available based on VLAN, such that different customer VLANs within a customer port can connect to different sites. This is similar to a Frame Relay port.
EWS being a transparent services use QinQ facing the customer to provide "VLAN bundling" in a port-based service and achieve transparency for customer bridge protocol data units (BPDUs).
An example of QinQ transport over EoMPLS would be Switch to Switch Port-based EoMPLS transport.
Hope it helps.
Cheers
Zeshan
