What is Intelligent Packet Re-Transmission in PCoIP Protocol?

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July 3, 2020

Last modified: 09/03/2023, 6:12 pm

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PCoIP Protocol uses UDP protocol similar to other real-time protocols (voice-over-IP, interactive video conferencing etc).  This is done to minimize the overhead associated with TCP protocol.  However, reliable transmission of data is important for remote desktops so PCoIP protocol incorporates intelligent packet re-transmission for highly efficient yet reliable packet delivery. In general, when there is packet loss, PCoIP protocol will not resend stale data for example:

  • Imaging data - may or may not be retransmitted depending on whether the imaging data is still current.
  • Audio data - is not re-transmitted.
  • USB packets - is always re-transmitted