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NSE5_SSE_AD-7.6 · Question #18

Refer to the exhibit, which shows the SD-WAN rule status and configuration. Based on the exhibit, which change in the measured packet loss will make HUB1-VPN3 the new preferred member?

The correct answer is A. When all three members have the same packet loss. The rule is in mode: priority with priority-members 6 4 5. The members' seq_nums map to: When the link-cost-factor is packet-loss, the lowest loss wins; but if the losses are tied, selection falls back to the priority-members order. With all three showing the same packet loss…

SD-WAN Configuration and Management

Question

Refer to the exhibit, which shows the SD-WAN rule status and configuration. Based on the exhibit, which change in the measured packet loss will make HUB1-VPN3 the new preferred member?

Exhibits

NSE5_SSE_AD-7.6 question #18 exhibit 1
NSE5_SSE_AD-7.6 question #18 exhibit 2

Options

  • AWhen all three members have the same packet loss
  • BWhen HUB1-VPN1 has 4% packet loss
  • CWhen HUB1-VPN1 has 12% packet loss
  • DWhen HUB1-VPN3 has 4% packet loss

How the community answered

(24 responses)
  • A
    63% (15)
  • B
    13% (3)
  • C
    21% (5)
  • D
    4% (1)

Explanation

The rule is in mode: priority with priority-members 6 4 5. The members' seq_nums map to: When the link-cost-factor is packet-loss, the lowest loss wins; but if the losses are tied, selection falls back to the priority-members order. With all three showing the same packet loss, the tie- break picks seq_num 6 first - i.e., HUB1-VPN3 - making it the preferred member.

Topics

#SD-WAN SLA#packet loss threshold#preferred member selection#performance-based routing

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