An entry containing attributes relating to dynamic interfaces
initiated on Ethernet virtual interfaces (e.g., EoMPLS) or
automatically created VLANs.
The system automatically creates an entry when the system or the
EMS/NMS creates a row in the cdtTemplateTable with a
cdtTemplateType of one of the following values:
'derived'
'ethernet'
Likewise, the system automatically destroys an entry when the
system or the EMS/NMS destroys the corresponding row in the
cdtTemplateTable.