> # Reserving FICON Port Numbers for FCIP and PortChannel Interfaces

> You must reserve port numbers for logical interfaces, such as FCIP and PortChannels, if you plan to use them.

> ## Detailed Steps

> To reserve FICON port numbers for FCIP and PortChannel interfaces using Device Manager, follow these steps:

> 1. Click FICON > Port Numbers.

> You see the FICON port numbers dialog box.

> 2. Click the Logical tab to see the reserved port numbers for the slot.
> 3. Enter the chassis slot port numbers. These are the reserved port numbers for one chassis slot. There can be up to 64 port numbers reserved for each slot in the chassis.
> 4. Click Apply.

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