Refer to the exhibit. What does the MX Security Appliance send to determine whether VPN traffic exceeds the configured latency threshold in the VoIP custom performance class?

Question

Exhibit

Options

• A1000-byte TCP probes every second, through VPN tunnels that are established over the primary
• B100-byte UDP probes every second, through VPN tunnels that are established over every WAN
• C100-byte UDP probes every second, through VPN tunnels that are established over the primary
• D1000-byte TCP probes every second, through VPN tunnels that are established over every WAN

• A
  3% (1)
• B
  81% (25)
• C
  10% (3)
• D
  6% (2)

Explanation

The performance probe is a small payload (approximately 100 bytes) of UDP data sent over all established VPN tunnels every 1 second. MX appliances track the rate of successful responses and the time that elapses before receiving a response. This data allows the MX to determine the packet loss, latency, and jitter over each VPN tunnel in order to make the necessary performance-based decisions. https://documentation.meraki.com/Architectures_and_Best_Practices/Cisco_Meraki_Best_Practic e_Design/Best_Practice_Design_-_MX_Security_and_SD-WAN/Meraki_SD-WAN

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