QuestionQ42

Rules and routing

Refer to the exhibit.

Question Image

Which statement accurately describes the ADVPN device's role in handling the traffic?

  • A This device is a hub that has received a shortcut query from a spoke and has forwarded it to another spoke.
  • B This device is a hub, and two spokes, 192.2.0.1 and 10.0.3.101, established a shortcut.
  • C This device is a spoke that has received a direct shortcut query from a remote spoke.
  • D This device is a spoke that has received a shortcut query from a remote hub.
Explanation

An ADVPN hub receives a shortcut query from the initiating spoke, uses the destination route to identify the remote spoke, and relays the query so the spokes can establish a direct shortcut. ADVPN uses the central hub to inform spokes of a better path for traffic between spokes; UDP hole punching supports shortcut establishment when a spoke is behind NAT.

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