300-415 Question 296
Select 2A network engineer is deploying Cisco SD-WAN in their environment and plans to integrate AppNav for WAN optimization. Which of the following actions must the engineer take to ensure proper functionality of AppNav in the SD-WAN environment?
- A
Ensure that all AppNav-enabled devices are part of the same SD-WAN overlay fabric.
- B
Configure the SD-WAN control policy to reroute traffic through the AppNav cluster.
- C
Deploy AppNav controllers in active/standby mode for high availability.
- D
Enable Service Side Interception (SSI) for optimized traffic flows.
- E
Specify the AppNav service chain in the SD-WAN data policy.
Show answer and explanation
Correct answers: B, E
Explanation
In Cisco SD-WAN, AppNav integration relies on proper traffic redirection through policies. The SD-WAN control policy is used to reroute traffic through the AppNav cluster, while the data policy specifies the service chain to direct traffic to AppNav appliances. These configurations ensure that the traffic requiring optimization is processed correctly, enhancing WAN performance.
- A. Incorrect.
Incorrect: AppNav-enabled devices do not need to be part of the same SD-WAN overlay fabric. AppNav operates at Layer 2/Layer 3 and integrates through service chaining in SD-WAN policies.
- B. Correct.
Correct: Configuring SD-WAN control policies to reroute traffic through the AppNav cluster ensures that traffic requiring optimization is directed to WAN optimization appliances.
- C. Incorrect.
Incorrect: AppNav controllers typically work in a distributed mode rather than active/standby. This enables scalable traffic optimization across multiple devices.
- D. Incorrect.
Incorrect: Service Side Interception (SSI) is not a requirement for AppNav in SD-WAN environments. Traffic redirection is achieved through SD-WAN policies.
- E. Correct.
Correct: Specifying the AppNav service chain in the SD-WAN data policy allows traffic to flow through the AppNav cluster for optimization.