Description 1
Setting the variable value to zero refers to delete the binding of trusted ARP and L2 interface. Setting the variable value to 1 refers to add the binding of trusted ARP and L2 interface. Setting any values other than 0 and 1 refers to no action taken.
Sources for this description
D-Link official switch MIBsD-Link MIB copies (LibreNMS/Observium Community)