> # Configuring XRC Acceleration

> IBM z/OS Global Mirror eXtended Remote Copy (XRC) is supported on the MSM-18+4 modules. For XRC to function, XRC acceleration must be enabled on the FCIP tunnel interfaces on both ends. XRC acceleration is disabled by default.

> ## Restrictions

> XRC acceleration and FICON tape acceleration cannot be enabled on the same FCIP tunnel interface and cannot exist in the same VSAN.

> ## Detailed Steps

> To configure XRC acceleration on a FCIP tunnel interface, follow these steps:

> 1. Expand ISL and then select FCIP in the Physical Attributes pane.
> 2. Click the Tunnels(Advanced) tab in the Information pane.

> You see a list of available FCIP interfaces.

> 3. Check the check box in the XRC Emulator column to enable XRC acceleration over the FCIP tunnel.
> 4. Click Apply.

> To configure XRC acceleration on an FCIP tunnel interface using Device Manager, follow these steps:

> 1. In the Device Manager window, click IP and then select FCIP from the menu.
> 2. Click the Tunnels(Advanced) tab in the Information pane.

> You see a list of FCIP interfaces.

> 3. Check the check box in the XRC Emulator column to enable XRC acceleration over the FCIP tunnel.
> 4. Click Apply.

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