Unlike a flat netlister, CDL Out maps only illegal names to new names in the hierarchical netlist. CDL Out considers a name illegal if it contains illegal characters or is more than 60 characters.
How Illegal Characters are Mapped during CDL Out?

Unlike a flat netlister, CDL Out maps only illegal names to new names in the hierarchical netlist. CDL Out considers a name illegal if it contains illegal characters or is more than 60 characters.
How Illegal Characters are Mapped during CDL Out?