> # Assigning FICON Port Numbers to Slots

> Caution | When you assign, change, or release a port number, the port reloads.

> ## Detailed Steps

> To assign FICON port numbers to slots using Device Manager, follow these steps:

> 1. Click FICON and then select Port Numbers.

> You see the FICON port number.

> 2. Enter the chassis slot port numbers in the Reserved Port Numbers field.
> 3. Click Apply.

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