Using PCoIP® Zero Clients with PCoIP Host Cards
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If you must limit bandwidth utilization on your network, use the Device Bandwidth Target setting first before
adjusting the Device Bandwidth Limit. Get input from your users as you adjust these settings to find the
bandwidth limit at which users are satisfied with their desktop experience.
3.2 Image Quality and Bandwidth Management
The PCoIP protocol constantly monitors the available bandwidth and the complexity of the graphics being
delivered and adjusts the image quality and frame rate to provide the best user experience (image quality and
desktop responsiveness) under changing conditions.
There are two configuration parameters to adjust the imaging quality of the session. These are accessed via
Configuration Image on the zero client Web interface. These parameters are not available on the PCoIP host
card.
Figure 5: Image quality settings screen under Configuration Image in zero client Web interface
3.2.1 Minimum Image Quality
The Minimum Image Quality slider allows you to balance image quality and frame rate when network bandwidth
is limited. Some use cases, such as those involving onscreen motion and rapid screen changes, may benefit
from lower-quality images at a higher frame rate (slider toward “Reduced,” meaning “optimize for frame rate”)
while others, such as those requiring more careful examination of static screen content, may be better served
by higher-quality images at a lower frame rate (slider toward “Perception-Free,” meaning “optimize for frame
image quality”). The default setting for Minimum Image Quality is 40, which tends to optimize for frame rate.
This setting aects image display only when network bandwidth is constrained. When bandwidth is not
constrained, the PCoIP protocol will deliver perception-free quality regardless of the Minimum Image Quality
setting.
