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Dell PowerEdge FN I/O Module Configuration Guide 9.10(0.0)

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Troubleshooting OSPFv2

The Dell Networking OS has several tools to make troubleshooting easier.

Be sure to check the following, as these questions represent typical issues that interrupt an OSPFv2 process.
  • NOTE: The following is not a comprehensive list, just some examples of typical troubleshooting checks.
  • Have you enabled OSPF globally?
  • Is the OSPF process active on the interface?
  • Are adjacencies established correctly?
  • Are the interfaces configured for Layer 3 correctly?
  • Is the router in the correct area type?
  • Have the routes been included in the OSPF database?
  • Have the OSPF routes been included in the routing table (not just the OSPF database)?
Some useful troubleshooting commands are:
  • show interfaces
  • show protocols
  • debug IP OSPF events and/or packets
  • show neighbors
  • show routes

To help troubleshoot OSPFv2, use the following commands.

  • View the summary of all OSPF process IDs enables on the router. EXEC Privilege mode show running-config ospf
  • View the summary information of the IP routes. EXEC Privilege mode show ip route summary
  • View the summary information for the OSPF database. EXEC Privilege mode show ip ospf database
  • View the configuration of OSPF neighbors connected to the local router. EXEC Privilege mode show ip ospf neighbor
  • View the LSAs currently in the queue. EXEC Privilege mode show ip ospf timers rate-limit
  • View debug messages. EXEC Privilege mode debug ip ospf process-id [event | packet | spf | database-timers rate-limit] To view debug messages for a specific OSPF process ID, use the debug ip ospf process-id command. If you do not enter a process ID, the command applies to the first OSPF process. To view debug messages for a specific operation, enter one of the optional keywords:
    • event: view OSPF event messages.
    • packet: view OSPF packet information.
    • spf: view SPF information.
    • database-timers rate-limit: view the LSAs currently in the queue.

Example of Viewing OSPF Configuration 

Dell#show run ospf
                                 !
                                 router ospf 3
                                 !
                                 router ospf 4
                                 router-id 4.4.4.4
                                 network 4.4.4.0/28 area 1
                                 !
                                 router ospf 5
                                 !
                                 router ospf 6
                                 !
                                 router ospf 7
                                 mib-binding
                                 !
                                 router ospf 8
                                 !
                                 router ospf 90
                                 area 2 virtual-link 4.4.4.4
                                 area 2 virtual-link 90.90.90.90 retransmit-interval 300
                                 !
                                 ipv6 router ospf 999
                                 default-information originate always
                                 router-id 10.10.10.10
                                 Dell#

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