5.30.36.5.1 Net Information Report Types
INT_NET - Internal nets
CLK_NET - More than 75% of pins driven by this net are clock pins SET/RESET_NET - More than 75% of pins driven by this net are set or reset pins Net Information Source Types:
NETLIST - Clock from the netlist
PDC PROMOTED - Promoted because of a PDC constraint
AUTO PROMOTED - Promoted automatically by compile; change the compile options if you do not want to promote this net.
ESSENTIAL - Global clock from the netlist that cannot be demoted (such as the PLL or CLKBIBUF).
