300-415 Question 266
Single answerA company has implemented a Cisco SD-WAN solution and is experiencing performance issues with a specific application. The network administrator decides to use traffic policing to limit the bandwidth for this application to ensure fair resource allocation for other critical applications. Where should the administrator apply the policing configuration in the SD-WAN environment?
- A
On the centralized policy at the vSmart controller
- B
On the localized data policy at the edge routers
- C
On the application-aware routing policy at the vSmart controller
- D
On the QoS policy at the vManage controller
Show answer and explanation
Correct answer: B
Explanation
Traffic policing in Cisco SD-WAN is configured at the edge routers using localized data policies. This is because the edge routers are directly responsible for handling and enforcing data plane traffic rules, including rate limiting. Centralized policies, application-aware routing, and QoS configurations serve different purposes and do not directly implement traffic policing.
- A. Incorrect.
Centralized policies on the vSmart controller are used for overarching traffic management, such as routing or traffic engineering, but they do not directly apply traffic policing at the edge.
- B. Correct.
Localized data policies at the edge routers are where traffic policing is configured, as these policies have direct control over the data plane traffic and can enforce bandwidth limits.
- C. Incorrect.
Application-aware routing policies focus on selecting the best WAN path for an application based on performance metrics but do not enforce traffic policing or bandwidth limits.
- D. Incorrect.
QoS policies at the vManage controller define prioritization and queuing but are not used for traffic policing, which specifically limits traffic rates.