Why am I experiencing poor performance when playing a 1080p high fps video with my PCoIP Remote Workstation Card and PCoIP Software Client?
Problem When using the PCoIP Software Client to connect to a PCoIP Remote Workstation Card I cannot achieve high frame rate playback.   Cause There are a number of factors that can contribute to poor performance so the best method of trying to determine …
Why has my PCoIP Client display temporarily shown a black screen?
Scenario While in a PCoIP session, the display(s) temporarily go black for a few seconds (typically 1-5 seconds) and then resumes normal operation. Occasionally the screen may be briefly frozen instead of turning black.   Cause This entry signifies that …
Why do I get the message Display Protocol for this desktop is currently busy processing a request
Scenario Re-connecting to a VMware Horizon View virtual desktop takes a long time and the message "The display protocol for this desktop is currently busy processing a request. Please contact your system administrator" is displayed. The message was …
What is an acceptable level of packet loss?
Just like VoIP and video conferencing, PCoIP is a real time protocol. Once a packet is lost in transit, there typically isn't time to re transmit before the PCoIP session is impacted. Therefore, the most acceptable level of loss is 0%. Packet loss maybe …
Core API vs Session Client API
  The following page details and compares the Core API and Session Client API in the following area's: Feature Set Supported Host Platforms Direct Connection Licensing   Core API vs Session Client API Feature Set The following table details the feature …
How can I determine the frame rate at a PCoIP protocol client?
Answer: There are a multiple ways to determine the frame update rate displayed at the PCoIP Zero Client.    Note: the frame rate displayed at the client this may be different than the source display frame rate when in a congested network environment.  Log …
Can I use Cisco Express Forwarding per-packet load sharing with PCoIP Protocol?
No, Cisco Express Forwarding (CEF) per-packet load sharing causes out-of-order packets which is not compatible with real-time protocols such as PCoIP Protocol.  Cisco has similar recommendations against CEF per-packet load sharing when using Voice-over-IP …
What congestion avoidance should be used in network switches and routers?
Weighted Random Early Discard (WRED) should be configured as the congestion avoidance, or congestion management method. WRED gradually drops packets while considering IP precedence, as network devices become congested. This allows PCoIP protocol …
The VMware Horizon View PCoIP server logs show "IPC Can't encode. Waiting. queue" after a random disconnect.
Problem The VMware Horizon View Client or PCoIP Zero Client experience a random disconnect from the VMware Horizon View session. Inspection of the PCoIP server logs show a high slice rate count after a random disconnect. The following example shows 192 …