show ipv6 ospf neighbor

This command displays information about OSPF neighbors. If you do not specify a neighbor IP address, the output displays summary information in a table. If you specify an interface or tunnel, only the information for that interface or tunnel displays. The argument unit/slot/port corresponds to a physical routing interface or VLAN routing interface. The keyword vlan is used to specify the VLAN ID of the routing VLAN directly instead of a unit/slot/port format. The ip-address is the IP address of the neighbor, and when you specify this, detailed information about the neighbor displays. The information below only displays if OSPF is enabled and the interface has a neighbor.

Format	`show ipv6 ospf neighbor [interface {unit/slot/port\|vlan 1-4093\|tunnel tunnel_id}][ip-address]`
Mode	User EXEC Privileged EXEC

If you do not specify an IP address, a table with the following columns displays for all neighbors or the neighbor associated with the interface that you specify:

Term	Definition
Router ID	The 4-digit dotted-decimal number of the neighbor router.
Priority	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.
Intf ID	The interface ID of the neighbor.
Interface	The interface of the local router in unit/slot/port format.
State	The state of the neighboring routers. Possible values 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 bidirectional communication has not yet been established. 2 way – communication between the two routers is bidirectional. 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. Full – the neighboring routers are fully adjacent and they will now appear in router-LSAs and network-LSAs.
Dead Time	The amount of time, in seconds, to wait before the router assumes the neighbor is unreachable.
Restart Helper Status	Indicates the status of this router as a helper during a graceful restart of the router specified in the command line: Helping – This router is acting as a helpful neighbor to the specified router. Not Helping – This router is not a helpful neighbor at this time.
Restart Reason	When this router is in helpful neighbor mode, this indicates the reason for the restart as provided by the restarting router.
Remaining Grace Time	The number of seconds remaining the in current graceful restart interval. This is displayed only when this router is currently acting as a helpful neighbor for the router specified in the command.
Restart Helper Exit Reason	Indicates the reason that the specified router last exited a graceful restart. None – Graceful restart has not been attempted In Progress – Restart is in progress Completed – The previous graceful restart completed successfully Timed Out – The previous graceful restart timed out Topology Changed – The previous graceful restart terminated prematurely because of a topology change

If you specify an IP address for the neighbor router, the following fields display:

Term	Definition
Interface	The interface of the local router in `unit/slot/port` format.
Area ID	The area ID associated with the interface.
Options	An integer value that indicates the optional OSPF capabilities supported by the neighbor. These are 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	The router priority for the specified interface.
Dead Timer Due	The amount of time, in seconds, to wait before the router assumes the neighbor is unreachable.
State	The state of the neighboring routers.
Events	Number of times this neighbor relationship has changed state, or an error has occurred.
Retransmission Queue Length	An integer representing the current length of the retransmission queue of the specified neighbor router Id of the specified interface.