Concept Guide

260 | Adaptive Radio Management Dell Networking W-Series Instant 6.5.1.0-4.3.1.0 | User Guide
By default, the ARM is triggered to scan all the channels every 10 seconds, and select the best channel for
transmission. But when the W-IAP is in a new environment, ARM is triggered to perform frequent scanning of
the non-DFS channels every 200 milliseconds, and select the best available channel for transmission. The ap-
frequent-scan command is introduced in the CLI to enable the W-IAPs to trigger frequent scanning of
transmission signals on a radio profile.
Wireless connection is affected for a few seconds when the frequent scanning of non-DFS channels is
ongoing. The connection is re-established after the ARM selects a valid channel. Typically, a frequent scanning
session lasts for less than 10 seconds.
Perform the following checks before scanning:
l The DFS channels must be skipped (this is done to avoid delays in scanning).
l The W-IAP must be on stand-alone mode.
l The client-aware parameter must be disabled in the ARM profile.
In the CLI
The following example triggers ARM scanning on a 2.4 GHz frequency band radio profile:
(Instant AP)# ap-frequent-scan 2.4
To verify the status of ARM scanning:
(Instant AP)# show ap debug am-config