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### Instruction:
OSPF-3-NOBACKBONE
### Response:
(Severity: 3), (Category: ROUTING), (Description: The router was flagged as an Area Border Router (ABR) without backbone area in the router.), (Recommended Action: If the message recurs, copy the error message exactly as it appears on the console or in the system log, call your Cisco technical support representative and provide the representative with the gathered information. Please include the output of the following commands: - show ospf <process-name> trace all - show running-config router ospf)
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