An engineer must implement multicast on an AireOS WLC v8.2 that has 200 LWAPs connected. Reliable reception is a main requirement of this implementation. Which wireless configuration must be performed?
To implement multicast on an AireOS WLC with reliable reception as a main requirement, the engineer should disable lower mandatory data rates. Here's why:
Multicast and Data Rates:
Multicast traffic is sent at the lowest mandatory data rate configured on the WLAN. If lower data rates (e.g., 1 Mbps, 2 Mbps) are enabled, multicast traffic will be sent at these slower rates, which can lead to poor performance and unreliable reception.
By disabling lower mandatory data rates, multicast traffic is sent at higher data rates, improving reliability and performance.
Impact on Coverage:
Disabling lower data rates reduces the coverage area of the APs, but this trade-off is necessary to ensure reliable multicast reception. Clients must be closer to the APs to maintain a connection, but the multicast traffic will be more reliable.
Why the Other Options Are Incorrect:
Option A: Increase the coverage cell.
Increasing the coverage cell size would allow clients to connect from farther away, but it does not address the issue of reliable multicast reception. In fact, it could worsen multicast performance.
Option B: Decrease the coverage cell.
Decreasing the coverage cell size would force clients to be closer to the APs, but it does not directly improve multicast reliability. Disabling lower data rates is a more effective solution.
Option C: Disable higher mandatory data rates.
Disabling higher data rates would force multicast traffic to be sent at even lower rates, which would degrade performance and reliability.
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