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<ipaddr> - IP address of the neighbor.
<slot/port> - Interface number.
Default Setting
None
Command Mode
Privileged Exec, User Exec
Display Messages
Interface Is the interface number.
Router Id Is a 4-digit dotted-decimal number identifying neighbor router.
Options An integer value that indicates the optional OSPF capabilities supported by the neighbor. The
neighbor's optional OSPF capabilities are also listed in its Hello packets.
This enables received Hello Packets to be rejected (i.e., neighbor relationships will
not even start to form) if there is a mismatch in certain crucial OSPF capabilities.
Router Priority Displays the OSPF priority for the specified interface. The priority of an interface is a
priority integer from 0 to 255. A value of '0' indicates that the router is not eligible to become the designated
router on this network.
State The types are:
Down- initial state of the neighbor conversation - no recent information has been received from the
neighbor.
Attempt - no recent information has been received from the neighbor but a more concerted effort should be
made to contact the neighbor.
Init - an Hello packet has recently been seen from the neighbor, but bi-directional
communication has not yet been established.
2 way - communication between the two routers is bi-directional.
Exchange start - the first step in creating an adjacency between the two neighboring routers, the goal is to
decide which router is the master and to decide upon the initial DD sequence number.
Exchange - the router is describing its entire link state database by sending Database Description packets
to the neighbor.
Loading - Link State Request packets are sent to the neighbor asking for the more recent LSAs that have
been discovered (but not yet received) in the Exchange state.
Full - the neighboring routers are fully adjacent and they will now appear in router-LSAs and network-LSAs.
Events The number of times this neighbor relationship has changed state, or an error has
occurred.
Permanence This variable displays the status of the entry, either dynamic or permanent. This refers to how
the neighbor became known.
Hellos Suppressed This indicates whether Hellos are being suppressed to the neighbor. The types are
enabled and disabled.
Retransmission Queue Length Is an integer representing the current length of the retransmission queue
of the specified neighbor router Id of the specified interface.
6.3.1.8 show ip ospf neighbor brief
This command displays the OSPF neighbor table list. When a particular neighbor ID is
specified, detailed information about a neighbor is given. The information will only be
displayed if OSPF is enabled.