IP over DCC has the functions and features that are different from the traditional DCC.
The DCC is used to transmit the OAM (operation, maintenance, and administration) data between NEs. The protocol stacks used by different vendors are not compatible with each other. Therefore, extra overhead bytes or service resources need to be allocated to transmit DCC data transparently in a network composed of multi-vendor products.
The IP over DCC meets most of the networking requirements in existing networks without occupying extra overhead bytes or service resources. The IP over DCC simplifies the network structure, saves network resources, and meets the networking requirements quickly.