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This section discusses the OSPF commands that can be used to
verify operation of the OSPF features covered in this chapter. Note
that the commands covered in the previous chapter also apply, but
the ones listed in this section are more specific to the
capabilities discussed so far.
You can use the same
show
commands listed in "Configuring
OSPF in a Single Area,"
to verify OSPF operation in multiple areas. Some additional commands
include the following:
-
show ip ospf border-routers
--- Displays the internal OSPF
routing table entries to an ABR.
show ip ospf virtual-links
--- Displays parameters about the
current state of OSPF virtual links.
show ip ospf
process-id
--- Displays information about
each area to which the router is connected, and indicates whether
the router is an ABR, ASBR, or both. The process ID is a user
defined identification parameter. It is locally assigned and can be
any positive integer number. The number used here is the number
assigned administratively when enabling the OSPF routing process.
show ip ospf database
--- Displays the contents of the
topological database maintained by the router. Several keywords can
be used with this command to get specific information about the
following links:
[process-id area-id] database
[router]
--- Displays individual router link-state
information.
show ip ospf
[process-id area-id] database [network]
--- Displays
networklink-state information. The area ID is the area number
associated with the OSPF address range defined in the network
router configuration command when defining a particular area.
show ip ospf
[process-id area-id] database [summary]
--- Displays
summary information about ABR link states.
show ip ospf
[process-id area-id] database [asbr-summary]
--- Displays
information about ASBR link-states.
show ip ospf
[process-id area-id] database [external]
--- Displays
information about autonomous system external link states.
show ip ospf
[process-id area-id] database [database-summary]
--- Displays
database summary information and totals.
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