Cisco
300-730 · Question #197
300-730 Question #197: Real Exam Question with Answer & Explanation
The correct answer is B: NONE(N). In Cisco DMVPN with BFD integration, the NHRP peer BFD state NONE(N) indicates BFD is not configured or not running on that peer.
Troubleshooting VPNs
Question
Which state indicates that BFD is missing on a peer when troubleshooting DMVPN?
Options
- ADOWN(D)
- BNONE(N)
- CUP(U)
- DINVALID(I)
Explanation
In Cisco DMVPN with BFD integration, the NHRP peer BFD state NONE(N) indicates BFD is not configured or not running on that peer.
Common mistakes.
- A. DOWN(D) indicates BFD is configured on both peers but the session has detected the peer as currently unreachable or the keepalive has timed out.
- C. UP(U) indicates a fully operational BFD session where the peer is confirmed reachable through active BFD hello exchanges.
- D. INVALID(I) is not a defined BFD peer state in Cisco DMVPN NHRP output and does not represent any recognized BFD operational condition.
Concept tested. BFD peer state NONE in DMVPN NHRP table
Topics
#BFD#DMVPN#peer state#NHRP
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