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Elektronik Bilgi Kütüphanesi



Using PCoIP® Zero Clients with PCoIP Host Cards
T E C H N I C A L N O T E S / 1 5
3.7 Temporal Dithering
Temporal dithering is a technique employed by some graphics cards to simulate colors that they cannot natively
display by rapidly changing the colors of pixels, tricking the eye into seeing “in-between” colors. During PCoIP
remote sessions, temporal dithering can cause extremely high bandwidth utilization because the rapidly
changing pixels force the PCoIP protocol to constantly deliver large screen updates to the remote desktop.
There is no acceptable way to reduce bandwidth consumption caused by temporal dithering because lowering
the PCoIP Device Bandwidth Target or Device Bandwidth Limit will impair user experience with reduced
responsiveness and image quality. However, some graphics cards allow temporal dithering to be disabled,
especially under Linux. Consult your graphics card documentation or contact your card vendor for details on
disabling temporal dithering. The Teradici Knowledge Base also contains information on temporal dithering
and how to disable it.
4 IP Addresses
4.1 DHCP
The PCoIP client and host are set to “DHCP client” mode by default, meaning the host and client IP addresses
are assigned by the DHCP server on your IP network. If your IP network does not have a DHCP server, the client
and host card will fall back to a static IP address mode after a timeout period of approximately two minutes. In
the fallback static IP address mode, you can access the client and host Web interfaces to disable DHCP client
mode and assign a static IP address. The client’s fallback IP address is 192.168.1.50 and the host’s fallback IP
address is 192.168.1.100.
4.2 Determining IP Addresses
Any computer connected to a corporate network or the Internet has a standard network card with an IP
address. In addition, the PCoIP host card has a dedicated Ethernet jack that delivers PCoIP remote desktop
data to the client. This host card Ethernet jack also has its own IP address. As a result, a PCoIP host computer
on a corporate network or the Internet has two dierent IP addresses – one for the standard network card and
one for the PCoIP host card. The PCoIP zero client has one IP address.
There are several ways to find the PCoIP host and client IP addresses:
To find the address of the PCoIP zero client, access Options Configuration Network tab on the client OSD.
If the client is statically connected to a host card, the host card IP address is displayed as the “Peer IP Address
on the Session tab.