6.5.1

Table Of Contents
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Hot adding and removing of virtual devices
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Suspend and resume
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High availability
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DRS
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Snapshots
See Cisco VM-FEX documentation for details on supported switches and switch configuration
information.
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Enable Passthrough for a Network Device on a Host
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.
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Configure a PCI Device on a Virtual Machine
Passthrough devices provide the means to more efficiently use resources and improve performance
in your environment. You can configure a passthrough PCI device on a virtual machine in the
vSphere Web Client.
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Enable DirectPath I/O with vMotion on a Virtual Machine
You can enable DirectPath I/O with vMotion for virtual machines in a data center on a Cisco UCS
system. The system must have at least one supported Cisco UCS Virtual Machine Fabric Extender
(VM-FEX) distributed switch.
Enable Passthrough for a Network Device on a Host
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.
Procedure
1 Browse to a host in the vSphere Web Client navigator.
2 On the Configure tab, expand Hardware and click PCI Devices.
3 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.
vSphere Networking
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