# VERILOG2075: Connections between external net and internal net port should have consistent net types ## Summary ```{raw} html
| Reliability | Security | Maintainability | Code attribute | Effort to fix | Tags |
|---|---|---|---|---|---|
| HIGH | - | - | Intentionality | Logical | 10min | synthesis, vscode, simulation, linter |
A connection (or part of a connection) between an external net and an internal net port has inconsistent net types. The SystemVerilog standard defines which combinations of net types are inconsistent and should produce a warning. See SystemVerilog Standard: 23.3.3.7 - Port connections with dissimilar net types (net and port collapsing) for more detail.
module fly (input .a({b, {c[1:0], d}}));
wand b;
wand [3:0] c;
supply0 d;
endmodule
module top;
wand a;
wor b;
trireg [1:0] c;
// net type 'wor' of connection bits [2:2] is inconsistent with net type 'wand' of corresponding port range
// net type 'trireg' of connection bits [1:1] is inconsistent with net type 'wand' of corresponding port range
fly fly1({a, b, c});
endmodule
```
## Parameters
No parameters.
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