300-415 Question 12
Select 3In a Cisco SD-WAN deployment, the vBond orchestrator plays a critical role in the initialization process. Which of the following statements accurately describe the functions of vBond in environments where devices are behind NAT?
- A
vBond facilitates the exchange of public and private IP addresses between vEdge devices and the vSmart controller.
- B
vBond ensures that all devices behind NAT can establish secure DTLS or TLS tunnels with each other directly.
- C
vBond authenticates all SD-WAN devices during the onboarding process using certificates.
- D
vBond provides centralized policy management and enforces data plane rules for SD-WAN traffic.
- E
vBond helps establish initial connectivity by facilitating device reachability across NAT boundaries.
Show answer and explanation
Correct answers: A, C, E
Explanation
The vBond orchestrator is a vital component of the SD-WAN orchestration plane. It plays a central role in enabling device reachability by exchanging IP addresses, authenticating devices, and facilitating connectivity across NAT boundaries. However, vBond is not involved in data plane policy enforcement or ensuring direct tunnel establishment between devices, as those tasks are handled by other components like vSmart and vEdge.
- A. Correct.
Correct: vBond plays a crucial role in facilitating the exchange of IP addresses (both public and private) to ensure devices can establish connectivity, particularly in NAT environments.
- B. Incorrect.
Incorrect: While vBond facilitates initial connectivity, it does not ensure that devices behind NAT can establish direct DTLS or TLS tunnels; this is managed by the vEdge devices themselves.
- C. Correct.
Correct: vBond is responsible for authenticating SD-WAN devices during the onboarding process using certificates, ensuring secure communication.
- D. Incorrect.
Incorrect: Centralized policy management and enforcement of data plane rules are functions of the vSmart controller, not vBond.
- E. Correct.
Correct: vBond helps devices that are behind NAT reach each other by facilitating their initial connectivity across NAT boundaries.