Cisco
300-415 · Question #21
300-415 Question #21: Real Exam Question with Answer & Explanation
The correct answer is D: number of BFD sessions. The BFD value of 8 in the exhibit represents the total number of BFD sessions established on the device.
Management and Operations
Question
Refer to the exhibit. What does the BFD value of 8 represent? Hostname State System IP Reachability Site ID Device Model BFD Control BR1-VEDGE1 10.3.0.1 reachable 300 vEdge Cloud 8 5
Options
- Adead timer of BFD session
- Bpoll-interval of BFD session
- Chello timer of BFD session
- Dnumber of BFD sessions
Explanation
The BFD value of 8 in the exhibit represents the total number of BFD sessions established on the device.
Common mistakes.
- A. The dead timer is a duration, not a count, and specifies how long a device waits for a BFD packet before declaring a neighbor down.
- B. The poll-interval is a timing parameter for BFD, specifically controlling how often packets are sent under certain conditions, not a count of sessions.
- C. The hello timer is a timing parameter for BFD, representing the interval at which hello packets are sent to a neighbor.
Concept tested. Interpreting BFD session statistics in Cisco SD-WAN.
Reference. null
Topics
#BFD#SD-WAN Control Plane#WAN Edge Operations#Network Monitoring
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