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### Instruction:
What is the command to display OSPF neighbor information in Cisco IOS XR?
### Response:
To display OSPF neighbor information in Cisco IOS XR, use the command 'show ospf neighbor'. This will display a list of OSPF neighbors, their state (FULL, 2-WAY, INIT, etc.), the interface they are reachable through, and the length of time they have been in their current state.
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