Which Cisco SD-WAN feature automatically steers traffic away from degraded WAN circuits using SLA measurements?

Which Cisco SD-WAN feature automatically steers traffic away from degraded WAN circuits using SLA measurements?

• A. VTP transparent mode
• B. Root Guard
• C. Application-aware routing
• D. BPDU filtering

Answer: (C)

Traffic steering based on SLA measurements across multiple WAN links is what this question is getting at. In Cisco SD-WAN, application-aware routing continuously monitors how each link is performing in terms of latency, jitter, loss, and available bandwidth, against defined service-level agreements for each application. When a circuit becomes degraded, the system automatically shifts that application's traffic to the best-performing path, and can return it to a better link when conditions improve. This per-application, SLA-driven path selection is what enables dynamic, automatic steering to maintain application performance across diverse transport types. The other options refer to Layer 2 switch features (VTP transparent mode, BPDU filtering) or to security/guarding mechanisms (Root Guard) that don’t influence WAN path selection or SLA-based traffic steering, so they aren’t relevant to this behavior.

Traffic steering based on SLA measurements across multiple WAN links is what this question is getting at. In Cisco SD-WAN, application-aware routing continuously monitors how each link is performing in terms of latency, jitter, loss, and available bandwidth, against defined service-level agreements for each application. When a circuit becomes degraded, the system automatically shifts that application's traffic to the best-performing path, and can return it to a better link when conditions improve. This per-application, SLA-driven path selection is what enables dynamic, automatic steering to maintain application performance across diverse transport types.

The other options refer to Layer 2 switch features (VTP transparent mode, BPDU filtering) or to security/guarding mechanisms (Root Guard) that don’t influence WAN path selection or SLA-based traffic steering, so they aren’t relevant to this behavior.