HPE Campus Access Mobility Expert (HPE7-A07)

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QuestionQ16

Performance Optimization

ACME has an AOS-CX 6200 VSF switch stack with an uplink oversubscription ratio of 9.6:1. Its low-priority TCP traffic is marked with a yellow DSCP color.

Refer to the exhibit.

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The company is considering adding two more nodes to the stack without adding uplinks because of existing wiring constraints. An architect has proposed this configuration:

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What is the impact of applying the acmethreshold profile as shown?

Choose two
Explanation

The profile applies a WRED action to LAG1’s queue 5 for yellow responsive traffic. Responsive traffic is TCP, and WRED probabilistically drops the selected yellow packets as queue utilization rises from 40% to 80%, signaling congestion before the queue is exhausted. This preferential dropping helps preserve queue-5 voice traffic from congestion; protocols, TCP traffic, and queues outside that configured class and queue are not universally affected.

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