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300-415 · Question #8

Which scheduling method is configured by default for the eight queues in the cloud vEdge router?

The correct answer is A. weighted round robin. By default, the eight queues on a cloud vEdge router use the Weighted Round Robin (WRR) scheduling method.

Security and Quality of Service

Question

Which scheduling method is configured by default for the eight queues in the cloud vEdge router?

Options

  • Aweighted round robin
  • Bpriority queue
  • Clow latency queue
  • Dweighted random early detection

How the community answered

(35 responses)
  • A
    91% (32)
  • B
    6% (2)
  • D
    3% (1)

Why each option

By default, the eight queues on a cloud vEdge router use the Weighted Round Robin (WRR) scheduling method.

Aweighted round robinCorrect

The default scheduling method for the eight queues on a vEdge router, including cloud vEdges, is Weighted Round Robin (WRR). WRR ensures that queues are serviced based on their assigned weights, providing a fair distribution of bandwidth among different traffic classes.

Bpriority queue

Priority queuing is a different scheduling method where higher-priority traffic is always served first, which is not the default.

Clow latency queue

Low Latency Queuing (LLQ) is a combination of priority queuing and weighted fair queuing, designed for delay-sensitive traffic like voice, and it's not the default for all eight queues.

Dweighted random early detection

Weighted Random Early Detection (WRED) is a congestion avoidance mechanism, not a scheduling method.

Concept tested: vEdge QoS default queue scheduling

Source: https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/qos/sdwan-qos-book/sdwan-qos-book-chapter_01.html

Topics

#SD-WAN QoS#vEdge router#Queue scheduling#Default configuration

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