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debug Commands
The debug commands provide information about the following
OSPF items:
- Adjacencies
- Designated router
- General events
- Link-state advertisements
- Neighbors
- Packets received
- Packets sent
- Route events
- SPF events
debug ip ospf
debug ipv6 ospf
- Use to display information about selected OSPF events.
This command has many keywords so you can specify a variety of OSPF
events.
- You can set the level of severity for the events you want
displayed: 0–7.
- You can set the verbosity of the messages you want displayed:
low, medium, high.
- Example 1
- host1#debug ip ospf adj
- Example 2
- host1#debug ipv6 ospf lsa
- Use the no version to cancel
the display of any information about the designated variable.
- See debug ip ospf
- See debug ipv6 ospf
ospf log-adjacency-changes
- Use to enable the logging of changes in the state of an
OSPF neighbor.
- Example
- host1(config-router)#ospf log-adjacency-changes
- Use the no version to disable
the logging of changes in the state of an OSPF neighbor.
- See ospf log-adjacency-changes
undebug ip ospf
undebug ipv6 ospf
- Use to cancel the display of information about a selected
event.
- The same OSPF variables can be designated as in the debug ip ospf or debug ipv6 ospf commands.
- Example 1
- host1#undebug ip ospf adj
- Example 2
- host1#undebug ipv6 ospf lsa
- There is no no version.
- See undebug ip ospf
- See undebug ipv6 ospf
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