Scan Settings for Smart RF

A Smart RF policy can reduce deployment costs by scanning the RF environment to determine the best channel and transmit power configuration for each radio. Scan settings define the quality and duration of the RF scan. Scanning and recovery parameters have a defined sensitivity: Low, Medium, or High. AP models AP4xx and AP5xx support custom sensitivity settings.

To set custom sensitivity:
  1. Go to Configure > Sites.
  2. Select a site. Then select Device Groups.
  3. Next to RF Management, select .
  4. Go to Basic Settings > Sensitivity and select Custom.
  5. From the Scanning tab configure the following parameters:
Table 1. AP Scan Settings
Field Description
OCS Monitoring Awareness Override Overrides OCS scanning. Smart RF relies on Off-Channel Scanning (OCS) to monitor the RF environment in real-time, allowing managed radios to adapt to changes in the RF environment. OCS can negatively impact some devices. When enabled, OCS checks for sensitive clients (for example, Voice and Power Save clients). If sensitive clients are found, OCS is skipped, and the Number of Threshold Awareness Hits counter is incremented.
Number of Threshold Awareness Hits Enabled after you enable OCS Monitoring Awareness Override.

When OCS is skipped, the OCS Awareness Hits counter is incremented. When it reaches the Number of Threshold Awareness Hits, OCS starts, even if sensitive clients may be negatively affected. This is because information about other channels is vital.

This setting indicates when channel jumping for OCS will begin regardless of the OCS Monitoring Awareness Override setting. If you increase this value, channel jumping will wait, resulting in better service to sensitive clients but presenting limited information about other channels. The default value is 10.

Scan Duration [Milliseconds] The length of time the scan occurs in milliseconds. Valid values are 20-150.
Scan Period [Seconds] The scan frequency interval in seconds. Valid values are 1-120. The default value is 6 seconds.
Extended Scan Frequency The frequency that radios scan on channels other than their peer radios. Valid values are 0 — 50. The default setting is 5 for all radio bands.
Scan Sample Count The number of samples that each Smart RF managed radio takes before reporting to ExtremeCloud IQ Controller. The default is 5 samples from a 5GHz radio and 10 samples from the 2.4 GHz and 6 GHz radios when Medium sensitivity is selected.
Client Aware Scanning A client awareness count (number of clients 1 — 255) for Off Channel Scans for the selected radio band. Channel scanning is avoided when the number of clients associated with the AP radio is greater than or equal to the value configured here.
Power Save Aware Scanning Defines scanning for power save clients. Valid values are:
  • Dynamic. Disables smart monitoring when buffered data exists at the radio for a power save client. The default setting is Dynamic for all radio bands.
  • Strict. Disables smart monitoring when a power save capable client is associated to a radio.
  • Disable. Do not use the Power Save Aware Scan option.
Voice Aware Scanning Defines how voice aware recognition is configured for Smart RF. Valid values are:
  • Dynamic. Disables smart monitoring when buffered data exists at the radio for a voice client. The default setting is Dynamic for all radio bands.
  • Strict. Disables smart monitoring when a voice client is associated to a radio.
  • Disable. Do not use the Voice Aware Scanning option.
Transmit Load Aware Scanning [%] Defines the threshold for channel load. Channel scanning is avoided when channel load is greater than or equal to this value.