This object reflects the current status of the CDL flow defect
indications progressed towards the CDL network from this
interface.
Note that the end-to-end path forward defect indication is
implicit, i.e. it is not signalled using a bit. An end-to-end
path forward defect is indicated by stopping transmission of
CDL Ethernet and Idle packets with the flow identifier value
specified by coCdlToCdlNetFlowIdentifier.