An engineer is designing a wireless network to support real-time applications across a building and wants to ensure that clients can successfully roam without voice or video interruption on the…

The correct answer is C. 20 percent. For seamless roaming that supports real-time, latency-sensitive applications like voice and video, Cisco recommends a minimum of 20% signal overlap between coverage cells on non-adjacent channels. This overlap ensures that a roaming client can detect the next AP with sufficient…

WLAN Design

Question

An engineer is designing a wireless network to support real-time applications across a building and wants to ensure that clients can successfully roam without voice or video interruption on the 5-GHz band. What should be the minimum overlap between nonadjacent channels?

Options

A5 percent
B10 percent
C20 percent
D25 percent

How the community answered

(33 responses)

B
3% (1)
C
94% (31)
D
3% (1)

Explanation

For seamless roaming that supports real-time, latency-sensitive applications like voice and video, Cisco recommends a minimum of 20% signal overlap between coverage cells on non-adjacent channels. This overlap ensures that a roaming client can detect the next AP with sufficient signal strength before losing the connection to the current AP, giving the roaming algorithm enough time to complete the handoff (including 802.11r/k/v fast BSS transition) without interrupting the real-time stream. Less than 20% overlap risks coverage gaps that cause dropped calls or video freezes during roaming transitions.

Topics

#channel overlap#roaming#5 GHz design#cell coverage

Community Discussion

No community discussion yet for this question.

Full 300-360 Practice