Refer to the exhibit. A Cisco ACI fabric experiences a packet drop for high-priority signaling traffic. Which configuration protects high-priority queues from dropping?

The correct answer is A. Change the scheduling algorithm to strict priority. Strict Priority Scheduling ensures that high-priority traffic is always served before other lower- priority traffic, avoiding packet drops in high-priority queues. In contrast, weighted round-robin (WRR) shares bandwidth between all queues, which can lead to drops for…

Network

Question

Exhibits

Options

AChange the scheduling algorithm to strict priority.
BChange the admin state to disabled.
CChange the scope to fabric-wide PFC.
DChange the congestion algorithm to WRED.

How the community answered

(25 responses)

A
84% (21)
B
4% (1)
C
8% (2)
D
4% (1)

Explanation

Strict Priority Scheduling ensures that high-priority traffic is always served before other lower- priority traffic, avoiding packet drops in high-priority queues. In contrast, weighted round-robin (WRR) shares bandwidth between all queues, which can lead to drops for high-priority traffic if the bandwidth is exhausted. Changing the scheduling algorithm from Weighted Round Robin (WRR) to Strict Priority prioritizes the high-priority queues and prevents drops for critical traffic like signaling.

Topics

#ACI QoS#strict priority scheduling#high-priority traffic#packet drop

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