When diagnosing routing issues on Cisco IOS XE, which command is used to verify OSPF neighbor relationships?

Question

Options

• Ashow ip ospf neighbor
• Bshow ip route
• Cshow ip interface brief
• Dshow version

• A
  89% (24)
• B
  7% (2)
• C
  4% (1)

Explanation

show ip ospf neighbor directly displays the OSPF neighbor table, showing each neighbor's router ID, priority, state, dead timer, and interface - exactly what you need to confirm adjacencies are forming correctly. Option B (show ip route) shows the routing table after OSPF has already converged, so it won't reveal why neighbors aren't forming. Option C (show ip interface brief) reports interface IP addresses and line/protocol status, which is useful for Layer 3 connectivity but says nothing about OSPF relationships. Option D (show version) displays hardware and IOS version info - irrelevant to routing protocol troubleshooting.

Memory tip: Think "neighbor = neighbor command" - the word neighbor appears verbatim in both the concept and the command, making it the easiest one to recall under pressure.

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