display ospfv3 black-box neighbor-down

Function

The display ospfv3 black-box neighbor-down command displays detailed information about OSPFv3 neighbors in the Down state.

Format

display ospfv3 black-box neighbor-down number

Parameters

Parameter	Description	Value
number	Specifies the number of OSPFv3 neighbors in the Down state to be displayed.	The value is an integer ranging from 1 to 10.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

If number is not specified, the display ospfv3 black-box neighbor-down command displays detailed information about the latest 10 OSPFv3 neighbors in the Down state.

Example

# Display the latest 2 OSPFv3 neighbors in the Down state.

<sysname> display ospfv3 black-box neighbor-down 2
 Neighbor Router-id                   : 10.1.1.1
 Interface                            : GigabitEthernet0/0/0
 Process ID                           : 99
 Instance ID                          : 1
 Reason for Neighbor down             : Interface down
 Time of Neighbor going down          : 2010-12-28 12:45:20+08:00
 Neighbor Router-id                   : 10.1.1.1
 Interface                            : GigabitEthernet0/0/0
 Process ID                           : 99
 Instance ID                          : 1
 Reason for Neighbor down             : One-way received
 Time of Neighbor going down          : 2010-12-28 12:45:20+08:00

**Table 1** Description of the **display ospfv3 black-box neighbor-down** **number** command output
Item	Description
Neighbor Router-id	Router ID of a neighbor whose neighbor relationship becomes Down
Interface	Interface of a device involved in a neighbor relationship
Process ID	ID of the OSPFv3 process to which the neighbor relationship belongs
Instance ID	ID of the OSPFv3 instance to which the neighbor relationship belongs
Reason for Neighbor down	Reason why a neighbor relationship becomes Down: Interface down: The interface went Down. Dead timer expired: The dead timer has expired. Sequence number mismatch: The sequence number did not match. One-way received: Only one-way hello packets were received. Forced down: The neighbor relationship was forced Down. Bad LS request: The LS request failed. DR or BDR has changed: The DR or BDR has changed.
Time at which neighbor went down	Date and time at which the neighbor went Down.