> For the complete documentation index, see [llms.txt](https://swatplus.gitbook.io/io-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://swatplus.gitbook.io/io-docs/introduction-1/routing-units/untitled-1.md).

# rout\_unit.def

| Field                                                                          | Description                                                        | Type    |
| ------------------------------------------------------------------------------ | ------------------------------------------------------------------ | ------- |
| [id](/io-docs/introduction-1/routing-units/untitled-1/id-rout_unit.def.md)     | ID of the Routing Unit                                             | integer |
| [name](/io-docs/introduction-1/routing-units/untitled-1/name-rout_unit.def.md) | Name of the Routing Unit                                           | string  |
| [elem\_tot](/io-docs/introduction-1/routing-units/untitled-1/elem_tot.md)      | Number of columns to read for list of elements in the Routing Unit | integer |
| [elements](/io-docs/introduction-1/routing-units/untitled-1/elements.md)       | First column listing elements in the Routing Unit                  | integer |