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Measures reported by MTMVBSSStrmsTest
In general, A/V conferencing enables real-time audio and video communications between the Microsoft Teams users. However, most Microsoft Teams users use Video-based screen sharing (Vbss) for communication. The difference between VbSS and traditional screen-sharing has to do with the underlying protocols used, and what they excel at. Screen-sharing uses the remote desktop protocol (RDP), which is great at creating thousands of 1-to-1 sessions between users. Vbss use User Datagram Protocol (UDP) which helps in improving your video start times, the viewing quality of what you're watching (especially if what you're watching is moving fast), and overall reliability.
In environments where users use Vbss streams for communication, it becomes mandatory for the administrator to check the quality of the VBSS stream conferencing experience and the load on the Microsoft Teams so that administrators may proactively be alerted to abnormalities/technical glitches in the conferences. This is where the MTMVBSSStrmsTest test helps.
Using this test, you can easily figure out the total number of video streams and the count of video streams that were classified as poor, good and unclassified. Administrators can also figure out the reason on why the video streams were classified as poor-is it due to high video frame rate? or high
video local frame loss? or high video post Fec plr?
Outputs of the test : One set of results for the monitored Microsoft Teams.
The measures made by this test are as follows:
| Measurement |
Description |
Measurement Unit |
Interpretation |
| VBSUclfdStm |
Indicates the number of video-based-screensharing streams that did not have sufficient data to be classified as good or poor. |
Number |
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| VBSStms |
Indicates the total number of video-based-screen sharing streams. |
Number |
|
| VBSStmPrVpF |
Indicates the number of video-based-screensharing streams where the Video Post Fec plr exceeds the pre-defined thresholds. |
Number |
|
| VBSPrVLsAv |
Indicates the number of video-based-screensharing streams that were classified as poor owing to Video Local Frame Loss. |
Number |
The detailed diagnosis of this measure lists the start time, end time, first UPN, second UPN, first
IP address, second IP address, conference ID and the number of VBSS streams classified as poor due to high video local frame loss. |
| VBSPrVFmeAv |
Indicates the number of video-based-screensharing streams that were classified as poor owing to high video frame rate. |
Number |
The detailed diagnosis of this measure lists the start time, end time, first UPN, second UPN, first
IP address, second IP address, conference ID and the number of VBSS streams classified as poor due to high video frame rate. |
| VBSPrStm |
Indicates the number of video-based-screensharing streams classified as poor. |
Number |
The detailed diagnosis of this measure lists the start time, end time, first UPN, second UPN, first
IP address, second IP address, conference ID and the number of VBSS streams that are classified as poor. |
| VBSPrPrcnt |
Indicates the percentage of videobased-screen-sharing streams that were classified as poor. |
Percentage |
|
| VBSGdStm |
Indicates the number of video-based-screensharing streams that were classified as good. |
Number |
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