display ospf graceful-restart

Function

The display ospf graceful-restart command displays the status of OSPF GR.

Format

display ospf [ process-id ] graceful-restart [ verbose ]

Parameters

Parameter	Description	Value
process-id	Specifies the ID of an OSPF process.	The value is an integer ranging from 1 to 4294967295.
verbose	Displays detailed information about OSPF GR.	-

Parameter

Description

Value

process-id

Specifies the ID of an OSPF process.

The value is an integer ranging from 1 to 4294967295.

verbose

Displays detailed information about OSPF GR.

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
ospf	read

Usage Guidelines

Usage Scenario

To view details of the GR and the statistics, run the display ospf graceful-restart command.

Example

The actual command output varies according to the device. The command output here is only an example.

# Display detailed information about OSPF GR.

<HUAWEI> display ospf graceful-restart verbose
OSPF Process 1 with Router ID 10.1.1.1               

 Helper-policy support                : planned, strict lsa check
 Current GR state                     : normal

 Number of restarting neighbors : 0

 Last exit reason:
  On Helper     : none
  All area count      : 1
              Area ID    : 0.0.0.1
 Authtype       :  None     Area flag : Normal
 Normal interface count: 1
 Interface: 6.6.6.2 (Eth0/1/18)
 GR state : Normal                  State: BDR          Type: Broadcast
 Neighbor count of this interface : 1
 Neighbor          IP address         GR state     Helper period   Grace Period Left   Last Helper Exit reason
 1.1.1.1           6.6.6.1            Normal       0               0                   none

# Display the status of OSPF GR in non-IETF mode.

<HUAWEI> display ospf graceful-restart
OSPF Process 1 with Router ID 10.1.1.1               

 Helper-mode                          : non-ietf
 Helper-policy support                : --
 Current GR state                     : normal

 Number of restarting neighbors : 0

 Last exit reason:
  On Helper     : none

# Display the status of OSPF GR in IETF mode.

<HUAWEI> display ospf graceful-restart
OSPF Process 1 with Router ID 10.1.1.1               

 Helper-policy support                : planned and un-planned, strict lsa check
 Current GR state                     : normal

 Number of restarting neighbors : 0

 Last exit reason:
  On Helper     : none

**Table 1** Description of the **display ospf graceful-restart** command output
Item	Description
Helper-policy support	Policy that supports the Helper: planned: indicates that the Helper supports only planned GR. un-planned: indicates the Helper supports unplanned GR. strict lsa check: indicates that the Helper supports strict external LSA check. ignore external lsa check: indicates that the Helper does not check external LSAs. never: indicates that the device does not support the Helper mode.
Current GR state	Current GR status: Normal: indicates that GR is in the Normal state. Helper: indicates that the device enters the Helper mode.
GR state	GR status of an interface: Normal. Helper.
GR helper age	GR helper duration.
Number of restarting neighbors	Number of restarted routers displayed on the Helper.
Last exit reason	Reason why the device exits from GR. none: indicates that GR is not implemented. successful exit: indicates that the OSPF process exits after GR is implemented successfully. grace period expire recv flush grace lsa: indicates that the GR restarter deletes the flushed grace LSA. recv change lsa: indicates that the local interface receives the changed LSA. recv two grace lsa: indicates that the local interface receives two grace LSAs. recv one way hello: indicates that the local interface receives an 1-way Hello packet from the peer interface. That is, the neighbor goes Down. policy check fail: indicates that the Helper policy check fails. nbr reset: indicates that NBR restarts. if change: indicates that the status of an interface changes. For example, the interface changes from Up to Down or the configuration of the interface changes. proc change: indicates that the configuration of the Helper in this OSPF instance changes.
Last Helper Exit reason	Cause for exiting the helper mode of the neighbor for the last time: none: indicates that GR does not occur. successful exit: indicates that GR is correctly performed and ended. grace period expired: indicates that the GR period expires. received flushed grace LSA: indicates that flushed grace LSAs are received. flooding changed LSA: indicates that changed LSAs are received. received multiple grace LSA: indicates that multiple grace LSAs are received. received 1-way hello packet: indicates that 1-way Hello packets are received. policy check failed for received grace LSA: indicates that the Helper policy is not matched. neighbor reset: indicates that topology changes after the reset command is run on the neighbor of the helper. interface state changed: indicates that the interface status is changed. graceful restart unconfigured at process level: indicates that GR is not configured for the neighbor.
On Helper	Reason why the Helper exits from GR.
Helper period	Period of the GR helper.
All area count	Number of areas in the process.
Area ID	Area ID.
Area flag	Area flag: Normal. NSSA. Stub.
Authtype	Authentication type.
Normal interface count	Number of interfaces in the area.
Neighbor count of this interface	Number of neighbors on the interface.
Neighbor	Router ID of the neighbor.
IP address	IP address of the neighboring interface.
Grace Period Left	Status of the neighbor: Normal. Restarter.
Helper-mode	Helper mode.
Interface	IP address of the interface.
State	Interface status: Point to Point. DR. BDR. DROther. Waiting. Down.
Type	Interface type: P2P. P2MP. NBMA. Broadcast.