What is meaning of '^^^' shown at end of electrical net constraint editor list. I want to define differential pair net names suffix with '_n' and '_p' but both of these net shown under '_n^^^' kind of single electrical net. Because of that I am not able to define differential nets. Anyone help please?
Like you say it just shows that this is a electrical net and not a physical net, if you don't like or don't have deal with electrical net's. Go to the Frontend CES in the DxDesigner and set it to 1 like you see here, don't do this on a Design that has actually used or constrainted electrical nets, because you can't undo this i think.