7SIGNAL calculates the "stickiness" of a client, or its refusal of a client to roam from its current access point to the best alternative access point.
A client should roam after its signal strength drops below the Roaming Threshold, and after the best neighboring AP's signal strength is better than the current one, plus the Roaming Delta.
Inputs and Calculation
(Current Signal Strength - Best Neighboring Signal Strength + Roaming Delta)
Roaming Delta: 7 dBm
Roaming Threshold: -70 dBm
Above values are set by 7SIGNAL and not customizable at this time.
Roaming Quality
Good = value of < 8 dBm
Warning = value >= 8 dBm
Critical = value >= 12 dBm
Example
- A client is connected at -72 dBm and the best neighbor is -52 dBm.
- Evaluation begins since -72 is worse than the Roaming Threshold of -70 dBm.
- The difference between -72 and -52 is -20 dBm.
- Then add -7 dBM to account for the Roaming Delta and you get -13 dBm.
- This corresponds to a "stickiness" of critical in the table above.