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QoS RRS feed

  • Question

  • We have QoS settings configured on client machine but when SfB client makes call the RTP traffic uses CS0 instead of EF.

    We have the following settings configured:

    Application: lync.exe

    DSCP Value: 46

    Local Port: 50000:50019

    Throttle rate: -1

    Rest of the fields are marked *

    The above values are set under: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\QoS\

    Friday, November 22, 2019 4:15 PM

All replies

  • Hi Mangnus!

    In my research, you could try to change your port range to 50020-50059 to see if it works. Listed in the table below are the port ranges and DSCP values associated with their media type.

    Besides, It is important that these port ranges do not overlap each other. If they did, then traffic would get marked incorrectly and could have an impact on your QoE.

    For more details about configuring QoS in Skype for Business, please refer to the following articles:

    https://commsverse.blog/2015/09/07/skype-for-business-configuring-quality-of-service-qos/

    https://docs.microsoft.com/en-us/skypeforbusiness/troubleshoot/quality-of-service/qos-config-and-best-practice-guide

    Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make sure that you completely understand the risk before retrieving any suggestions from the above link.

    Best Regards,
    Jimmy Yang

    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.
    Monday, November 25, 2019 4:22 AM
  • Hi,
    Is there any update on this case?
    Please feel free to drop us a note if there is any update.
    Have a nice day!

    Best Regards,
    Jimmy Yang

    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.
    Tuesday, December 3, 2019 2:46 PM