Implementing Cisco SD-WAN Solutions (ENSDWI) — Question 242

Which protocol detects path status (up/down), measures loss/latency/jitter, and measures the quality of the IPsec tunnel MTU?

Answer options

• A. DTLS
• B. BFD
• C. OMP
• D. IP-SLA

Correct answer: B

Explanation

BFD (Bidirectional Forwarding Detection) is specifically designed for rapid detection of failures in the path between two forwarding engines, making it suitable for monitoring path status and performance metrics. The other options do not provide the same level of path monitoring and performance measurement capabilities as BFD does.