VCAP-DTA Section 6 Notes

By | February 11, 2014

Section 6 – Configure and Optimize View Display Protocols

 Objective 6.1 – Configure PCoIP and RDP for Varying Network Conditions

  • Determine appropriate configuration parameters based on network performance

Consider configuring the following settings for special use cases:

  • Image quality levels
  • Maximum Initial Image Quality
  • Minimum Image Quality
  • Maximum Frame Rate
  • Network settings
  • Configure the maximum PCoIP session bandwidth
  • Configure the PCoIP session bandwidth floor

See VMware-View-5-PCoIP-Network-Optimization-Guide

  • Configure QoS and CoS settings for PCoIP

See above objective.

To ensure proper delivery of PCoIP, tag it in Quality of Service (QoS), so that it competes fairly across the network with other real-time protocols. Also prioritize PCoIP above other non-critical and latency-tolerant protocols (such as file transfers or print jobs). Failure to tag PCoIP properly in a congested network environment leads to PCoIP packet loss and a poor user experience, as PCoIP adapts down in response

If traffic shapers are being used, use them in conjunction with a scheduling queue, and assign high priority to this queue based on the CoS value set for PCoIP traffic. This is CBWFQ.

From a vSphere perspective, consider Class of Service (CoS) and Network IO Control.  These can be configured via a Virtual Distributed Switch.


Objective 6.2 – Configure Group Policies for PCoIP and RDP

  • Identify and resolve group policy conflicts
    • gpresult /r  on machine
    • gpupdate /force
    • Resultant Set of Policy wizard – Group Policy Management

GPO Loopback processing


Objective 6.3 – Analyze PCoIP Metrics for Performance Optimization


  • Interpret PCoIP log files

View Agent log files are found in:

  • Windows XP
    • Documents and Settings\All Users\Application Data\VMware\VDM\logs
  • Windows Vista and Windows 7
    • ProgramData\VMware\VDM\logs

The virtual desktop PCOIP logs are called pcoip_agent*.log and pcoip_server*.log and they are located in the same location as the agent logs on the view desktop.

The client PCoIP logs are called pcoip_client*.txt and are located in the user’s %temp% directory on Windows Clients.

The location of View Client log files:

  • Windows XP
    • C:\Documents and Settings\%username%\Local Settings\Application Data\VMware\VDM\Logs\
  • Windows 7 and Windows Vista
    • C:\Users\%username%\AppData\Local\VMware\VDM\Logs\

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