Passthrough devices provide the means to use resources efficiently and improve performance of your environment. You can enable DirectPath I/O passthrough for a network device on a host.

Caution

If your ESXi host is configured to boot from a USB device or an SD card attached to a USB channel, make sure that you do not enable DirectPath I/O passthrough for the USB controller. Passing through a USB controller on an ESXi host that boots from a USB device or SD card might put the host in a state where its configuration cannot be persisted.

1

Browse to a host in the vSphere Web Client navigator.

2

Click the Manage tab, click Settings.

3

In the Hardware section, click PCI Devices.

4

To enable DirectPath I/O passthrough for a PCI network device on the host, click Edit.

A list of available passthrough devices appears.

Icon

Description

green icon

A device is active and can be enabled.

orange icon

The state of the device has changed, and you must reboot the host before you can use the device.

5

Select the network device to be used for passthrough and click OK.

The selected PCI device appears in the table. Device information is displayed at the bottom of the screen.

6

Reboot the host to make the PCI network device available for use.