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5V0-42.21 · Question #38

A customer would like to ensure that the traffic towards the Partner Gateway does not exceed a certain bandwidth. Which feature should be used?

The correct answer is C. Change the application priority to low. Changing the application priority to low triggers the SD-WAN platform to apply bandwidth throttling for that traffic toward the Partner Gateway, effectively capping throughput at a controlled rate rather than just deprioritizing it in a queue. Why the distractors are wrong: A…

SD-WAN Deployment and Configuration

Question

A customer would like to ensure that the traffic towards the Partner Gateway does not exceed a certain bandwidth. Which feature should be used?

Options

  • AModify the SD WAN Traffic Class and Weight Mapping
  • BEnable the SD-WAN Overlay Rate-Limit.
  • CChange the application priority to low.
  • DEnable the rate limit under a new custom Business Policy Rule.

How the community answered

(40 responses)
  • A
    5% (2)
  • B
    13% (5)
  • C
    80% (32)
  • D
    3% (1)

Explanation

Changing the application priority to low triggers the SD-WAN platform to apply bandwidth throttling for that traffic toward the Partner Gateway, effectively capping throughput at a controlled rate rather than just deprioritizing it in a queue.

Why the distractors are wrong:

  • A (Traffic Class and Weight Mapping): This adjusts how bandwidth is distributed proportionally among traffic classes, but does not enforce a hard ceiling on traffic sent to a specific gateway.
  • B (SD-WAN Overlay Rate-Limit): This controls the aggregate overlay tunnel bandwidth more broadly and is not the targeted mechanism for Partner Gateway-specific bandwidth enforcement.
  • D (Business Policy Rate Limit): Business Policy Rules manage application routing and SLA-based decisions; a rate limit here applies to flow behavior generally, not specifically to cap bandwidth toward a Partner Gateway.

Memory tip: Think "low priority = low bandwidth allowance." When you want the Partner Gateway to receive no more than a set amount of traffic, you're throttling it down - and setting application priority to low is the mechanism that enforces that ceiling in this context. Associate "Partner Gateway bandwidth cap" with "pull the priority lever down."

Topics

#Application Priority#Bandwidth Management#QoS#Partner Gateway

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