Q42Security and Quality of Service
Which queue must an engineer configure for control and BFD traffic to ensure convergence on a WAN Edge router?
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Community votes
Discussion · 6
A 2
Selected Answer: A
Queue 0 is always set up as a low-latency queue and
is the only queue that supports Low Latency Queuing. Additionally, all control traffic
that is originated by the WAN Edge router, including DTLS/TLS, BFD probes, and rout-
ing protocol traffic, is automatically mapped to queue 0.
2
Control and BFD (Bidirectional Forwarding Detection) traffic is reserved for Queue 0
Option [A]
A 2
Selected Answer: A
A
BFD is in Queue 0 (LowLatencyQueue)
A 1
Selected Answer: A
https://www.cisco.com/c/en/us/support/docs/routers/vedge-router/213408-implement-qos-in-cisco-sd-wan.html
1
correct answer is D
1
The localized data policy can manage the flow of data traffic into and out of a vEdge router's interfaces and enables features such as QoS. The policies can be activated if you apply the access lists, either in the outbound direction or in the inbound direction.
Each interface has eight queues on hardware vEdge routers, numbered from 0 to 7. Queue 0 is reserved and is used for both control traffic and low-latency queuing (LLQ) traffic. For LLQ, any class that is mapped to queue 0 must also be configured to use LLQ. All control traffic is transmitted. Queues 1 to 7 are available for data traffic.