CEP
Customer Edge Port,
also known as Selective Q-in-Q or C-tagged Service Interface, is a role that is configured
in software as a CEP VMAN port, and connects a VMAN to specific CVLANs based on the CVLAN
CVID. The CNP role, which is configured as an untagged VMAN port, connects a VMAN to all
other port traffic that is not already mapped to the port CEP role.