300-370 · Question #155
A post-deployment wireless survey identifies a roaming issue in the main corridor of a hospital. Which action do you take to mitigate the issue?
The correct answer is D. Enable CleanAir on the WLC. A roaming issue in a hospital corridor often indicates RF interference, which Cisco's CleanAir technology is specifically designed to detect and mitigate, thereby improving client roaming behavior.
Question
A post-deployment wireless survey identifies a roaming issue in the main corridor of a hospital. Which action do you take to mitigate the issue?
Options
- AEnable RSSI Low Check on the WLC
- BDisable RRM on the WLC
- CChange the AP channels in the area.
- DEnable CleanAir on the WLC
How the community answered
(25 responses)- A4% (1)
- B8% (2)
- C16% (4)
- D72% (18)
Why each option
A roaming issue in a hospital corridor often indicates RF interference, which Cisco's CleanAir technology is specifically designed to detect and mitigate, thereby improving client roaming behavior.
Enabling RSSI Low Check is a client steering mechanism that might help clients roam away from low-signal areas but does not address the underlying issue of RF interference causing the poor signal.
Disabling RRM (Radio Resource Management) would likely worsen roaming issues by preventing the network from dynamically optimizing AP power and channel assignments.
Manually changing AP channels might offer a temporary fix, but it is not a dynamic or automated solution for ongoing or intermittent interference, which CleanAir provides.
Enabling CleanAir on the WLC allows the wireless network to actively detect, classify, locate, and mitigate sources of RF interference, which is a common cause of roaming issues and poor wireless performance, especially in environments like hospitals with potential medical device interference. By identifying and avoiding these interference sources, CleanAir helps ensure a cleaner RF environment, facilitating smoother client roaming between access points.
Concept tested: Wireless interference mitigation and roaming
Source: https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-0/configuration-guide/b_cg80/b_cg80_chapter_01000.html
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