Configuring Remote Desktop Features

Table Of Contents
This section includes the following topics:
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Limitations Regarding USB Device Types
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Overview of Setting Up USB Redirection
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Network Traffic and USB Redirection
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Automatic Connections to USB Devices
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Deploying USB Devices in a Secure Horizon 7 Environment
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Using Log Files for Troubleshooting and to Determine USB Device IDs
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Using Policies to Control USB Redirection
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Troubleshooting USB Redirection Problems
Limitations Regarding USB Device Types
Although Horizon 7 does not explicitly prevent any devices from working in a remote desktop, due to
factors such as network latency and bandwidth, some devices work better than others. By default, some
devices are automatically filtered, or blocked, from being used.
In Horizon 6.0.1, together with Horizon Client 3.1 or later, you can plug USB 3.0 devices into USB 3.0
ports on the client machine, on Windows, Linux, and Mac clients. USB 3.0 devices are supported only
with a single stream. Because multiple stream support is not implemented in this release, USB device
performance is not enhanced. Some USB 3.0 devices that require a constant high throughput to function
correctly might not work in a VDI session, due to network latency.
In earlier View releases, although super-speed USB 3.0 devices are not supported, USB 3.0 devices do
often work when plugged into a USB 2.0 port on the client machine. However, there might be exceptions,
depending on the type of USB chipset on the motherboard of the client system.
The following types of devices might not be suitable for USB redirection to a remote desktop that is
deployed on a single-user machine:
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Due to the bandwidth requirements of webcams, which typically consume more than 60 Mbps of
bandwidth, webcams are not supported through USB redirection. For webcams, you can use the
Real-Time Audio-Video feature.
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The redirection of USB audio devices depends on the state of the network and is not reliable. Some
devices require a high data throughput even when they are idle. If you have the Real-Time Audio-
Video feature, audio input and output devices will work well using that feature, and you do not need to
use USB redirection for those devices.
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USB CD/DVD burning is not supported.
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Performance of some USB devices varies greatly, depending on the network latency and reliability,
especially over a WAN. For example, a single USB storage device read-request requires three round-
trips between the client and the remote desktop. A read of a complete file might require multiple USB
read operations, and the larger the latency, the longer the round-trip will take.
Configuring Remote Desktop Features in Horizon 7
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