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What does auto channel selection do and how is it different than Dynamic Channel Selection mode?

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TitleWhat does auto channel selection do and how is it different than Dynamic Channel Selection mode?
Question

What does auto channel selection do and how is it different than Dynamic Channel Selection mode?

Environment
  • IdentiFi Wireless
  • Dynamic Channel Selection (DCS)
  • Auto Channel Selection (ACS)
  • Firmware All
Answer
Auto Channel Selection (ACS) (pre-10.41.xx code)
  • ACS provides an easy way to optimize channel arrangement based on the current situation in the field. ACS provides an optimal solution only if it is triggered on all APs in a deployment. Triggering ACS on a single AP or on a subset of APs provides a useful but sub-optimal solution. Also, ACS only relies on the information observed at the time it is triggered. Once an AP has selected a channel, it remains operating on that channel until the user changes the channel or triggers ACS. The way to make the AP always choose best channel is to enable Dynamic Channel Selection selection under the Advanced Button >  Radio1 and Radio2 tabs.
Auto Channel Selection (ACS) (10.41.xx code)
  • ACS provides an easy way to optimize channel arrangement based on the current situation in the field. An optimal solution is provided only if ACS is triggered on all APs in a deployment, or all APs placed in a distinct area like a floor. ACS forces the channel width selection of the involved APs to Auto width or 20Mhz. The ACS algorithm selects the optimal channel width for all the selected APs and places each AP on the best channel available in its area. Use the Channel Inspector Report to visualize why the AP was placed on the selected channel. Triggering ACS on a single AP or on a subset of APs can be useful but it is not an optimal solution. The ACS algorithm places the selected APs as best it can considering the channels occupied by other operating APs. ACS relies on the RF channel information observed at the time it is triggered. Once an AP has selected a channel, it remains operating on that channel until you change the channel or trigger ACS again.

Dynamic Channel Selection (DCS) 
  • DCS allows a Wireless AP to monitor traffic and noise levels on the channel on which the AP is currently operating. DCS can operate in two modes:
  • Monitor:  When DCS is enabled in monitor mode and traffic or noise levels exceed the configured DCS thresholds, an alarm is triggered and an information log is generated. The DCS monitor alarm is used for evaluating the RF environment of your deployed APs.
  • Active: When DCS is enabled in active mode and traffic or noise levels exceed the configured DCS thresholds, an alarm is triggered and an information log is generated. In addition, the AP ceases operating on the current channel and ACS is employed to select an alternate channel for the AP to operate on. DCS does not trigger channel changes on neighboring APs.


 
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