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Request for Threshold/Criterion Details in RF Data API Endpoints

vinojadh
Cisco Employee
Cisco Employee

I am reviewing the /webacs/api/v4/data/RFLoadStats API Endpoint, specifically the poor Coverage Clients, channel utilisation attributes. The documentation states that this attribute represents the number of clients experiencing poor coverage. However, it does not provide any details on the exact criteria or thresholds that define what constitutes "poor coverage."  What specific factors (e.g., Signal-to-Noise Ratio, dB, or any other thresholds) contribute to a client being categorized as having poor coverage?

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@vinojadh 

  Probably they use RSSI but they should use SNR, this is a very common mistake. SNR takes the RSSI, which is the signal strength and the noisy, giving  you the difference beetween both.  SNR greater than 25 is an excellent SNR. 

  If you look this only under the perspective of RSSI, the coverage could be classified as good but if the noisy is too high the network quality would be bad, 

Thanks, I agree that while RSSI can be used to claim that a client is in a poor coverage area, it may not be the most accurate measure when it comes to quantifying the overall wireless health of an environment. In such cases, SNR would indeed be a more reliable indicator, as it accounts for both signal strength and noise, providing a clearer picture of the actual network quality.

That said, I am still looking for any reference documents or official guidelines that outline the threshold values used to classify a client as being in a "poor coverage" area. Is there any documentation available that provides these threshold values for either RSSI or SNR?

I am guessing that you would need to reach out to said person(s) of documentation and ask for this to be clarified, as you noted to what determines  "poor coverage", that or engineering would be able to help.

Hope this helps.

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