Port-wide default input CDVT setting. If this value is non-zero and the traffic descriptor for does not explicitly state a CDVT value, this value is used as the 'implied' CDVT. If this value is zero, a calculated valued based on the PCR of the Traffic descriptor is used instead. Currently, this calculated value is 100 * PCR of the circuit being admitted. Changing the default input CDVT value will not affect any VC or VP cross connects that are currently in the 'active' state. These VC/VP cross Connects will continue to use the CDVT value that was in effect when the VC/VP cross connect was made active. The new input CDVT value will be used on these VC/VP cross connects the next time they are placed in a notInService state or the CSM is rebooted. If the override flag is set to false, then this value is read-only and is inherited from the setting of the adGenCSMDirectionDefaultCDVT variable.