300-440 · Question #88
Which diagnostic step is important for resolving redistribution issues between BGP and OSPF on a Cisco IOS XE router?
The correct answer is D. Verifying route redistribution commands. Verifying route redistribution commands (D) is the correct diagnostic step because misconfigured or missing redistribute statements are the most direct cause of routes failing to propagate between BGP and OSPF - you must confirm the correct syntax, route maps, and metrics are…
Question
Options
- AChecking for correct AS numbers
- BReviewing system uptime
- CInspecting crypto key integrity
- DVerifying route redistribution commands
How the community answered
(37 responses)- A5% (2)
- B3% (1)
- C11% (4)
- D81% (30)
Explanation
Verifying route redistribution commands (D) is the correct diagnostic step because misconfigured or missing redistribute statements are the most direct cause of routes failing to propagate between BGP and OSPF - you must confirm the correct syntax, route maps, and metrics are in place on the redistribution point.
Why the distractors are wrong:
- (A) Checking AS numbers matters for BGP peer establishment, not redistribution between protocols once peering is already up.
- (B) Reviewing system uptime is irrelevant - redistribution issues are configuration problems, not time-dependent ones.
- (C) Inspecting crypto key integrity applies to authentication (e.g., MD5 for OSPF neighbors), not route redistribution logic.
Memory tip: Think "redistribution = redistribute command." When routes aren't moving between BGP and OSPF, go straight to the redistribute configuration on the ASBR (Autonomous System Boundary Router) - use show ip route, show ip bgp, and show run | section router to confirm the commands are present and correctly scoped.
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