area-id: Specifies an area by its ID, an IP address or a decimal integer in the range of 0 to 4294967295 that is translated into the IP address format.

Examples

# Create Area 0 and enter Area 0 view.

<Sysname> system-view

[Sysname] ospf 100

[Sysname-ospf-100] area 0

[Sysname-ospf-100-area-0.0.0.0]

description

Use description to configure a description for an OSPF process or area.

Use undo description to restore the default.

Syntax

description text

undo description

Default

No description is configured for an OSPF process or area.

Views

OSPF view

OSPF area view

Predefined user roles

network-admin

Parameters

text: Specifies a description, a case-sensitive string of 1 to 80 characters.

Usage guidelines

The description specified by this command is used to identify an OSPF process or area.

Examples

# Describe OSPF process 100 as abc.

<Sysname> system-view

[Sysname] ospf 100

[Sysname-ospf-100] description abc

# Describe OSPF Area 0 as bone area.

<Sysname> system-view

[Sysname] ospf 100

[Sysname-ospf-100] area 0

[Sysname-ospf-100-area-0.0.0.0] description bone area

display ospf abr-summary

Use display ospf abr-summary to display ABR summary route information.

Syntax

display ospf [ process-id ] [ area area-id ] abr-summary [ ip-address { mask-length | mask } ] [ verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

process-id: Specifies an OSPF process by its ID in the range of 1 to 65535. If you do not specify this argument, the command displays information about ABR summary routes for all OSPF processes.

area area-id: Specifies an OSPF area by its ID. The area ID is an IP address or a decimal integer in the range of 0 to 4294967295 that is translated into the IP address format. If you do not specify this option, the command displays information about ABR summary routes for all OSPF areas.

ip-address: Specifies a summary route by its IP address.

mask-length: Specifies the mask length in the range of 0 to 32.

mask: Specifies the mask in dotted decimal notation.

verbose: Displays detailed ABR summary route information. If you do not specify this keyword, the command displays brief ABR summary route information.

Usage guidelines

If you do not specify an IP address, this command displays information about all summary routes on the ABR.

Examples

# Display brief information about summary routes on the ABR.

<Sysname> display ospf abr-summary

OSPF Process 1 with Router ID 2.2.2.2

ABR Summary Addresses

Area: 0.0.0.1

Total summary addresses: 1

Net Mask Status Count Cost

100.0.0.0 255.0.0.0 Advertise 1 (Not Configured)

Table 3 Command output

Field	Description
Area	Area to which the summary routes belong.
Total summary addresses	Total number of summary routes.
Net	Address of the summary route.
Mask	Mask of the summary route address.
Status	Advertisement status of the summary route: Advertise or Non-Advertise.
Count	Number of summarized routes.
Cost	Cost of the summary route.

‌

# Display detailed information about summary routes on the ABR.

<Sysname> display ospf abr-summary verbose

OSPF Process 1 with Router ID 2.2.2.2

ABR Summary Addresses

Area: 0.0.0.1

Total summary addresses: 1

Net : 100.0.0.0

Mask : 255.0.0.0

Status : Advertise

Cost : (Not Configured)

Routes count: 1

Destination NetMask Metric

100.1.1.0 255.255.255.0 1000

Table 4 Command output

Field	Description
Destination	Destination address of a summarized route.
NetMask	Network mask of a summarized route.
Metric	Metric of a summarized route.

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display ospf asbr-summary

Use display ospf asbr-summary to display ASBR summary route information.

Syntax

display ospf [ process-id ] asbr-summary [ ip-address { mask-length | mask } ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

process-id: Specifies an OSPF process by its ID in the range of 1 to 65535. If you do not specify this argument, the command displays information about ASBR summary routes for all OSPF processes.

ip-address: Specifies an IP address in dotted decimal notation.

mask-length: Specifies the mask length in the range of 0 to 32.

mask: Specifies the mask in dotted decimal notation.

Usage guidelines

If you do not specify an IP address, this command displays information about all ASBR summary routes.

Examples

# Display ASBR summary route information in OSPF process 1.

<Sysname> display ospf 1 asbr-summary

OSPF Process 1 with Router ID 2.2.2.2

Summary Addresses

Total Summary Address Count: 1

Summary Address

Net : 30.1.0.0

Mask : 255.255.0.0

Tag : 20

Status : Advertise

Cost : 10 (Configured)

The Count of Route is : 2

Destination Net Mask Proto Process Type Metric

30.1.2.0 255.255.255.0 OSPF 2 2 1

30.1.1.0 255.255.255.0 OSPF 2 2 1

Table 5 Command output

Field	Description
Total Summary Address Count	Total number of summary routes.
Net	Address of the summary route.
Mask	Mask of the summary route address.
Tag	Tag of the summary route.
Status	Advertisement status of the summary route.
Cost	Cost of the summary route.
The Count of Route is	Number of summarized routes.
Destination	Destination address of a summarized route.
Net Mask	Network mask of a summarized route.
Proto	Routing protocol from which the route was redistributed.
Process	Process ID of the routing protocol from which the route was redistributed.
Type	Type of a summarized route.
Metric	Metric of a summarized route.

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display ospf event-log

Use display ospf event-log to display OSPF log information.

Syntax

display ospf [ process-id ] event-log { lsa-flush | peer | spf }

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

process-id: Specifies an OSPF process by its ID in the range of 1 to 65535. If you do not specify this argument, the command displays OSPF log information for all processes.

lsa-flush: Specifies LSA aging log information.

peer: Specifies neighbor state change log information.

neighbor-id: Specifies a neighbor by its router ID. If you do not specify this argument, the command displays state change log information for all neighbors.

spf: Specifies route calculation log information.

Usage guidelines

Route calculation logs show the number of routes newly installed in the IP routing table.

Neighbor logs include information about the following events:

· The OSPF neighbor state goes down.

· The OSPF neighbor state goes backward because the local end receives BadLSReq, SeqNumberMismatch, and 1-Way events.

Examples

# Display OSPF LSA aging log information for all processes.

<Sysname> display ospf event-log lsa-flush

OSPF Process 1 with Router ID 1.1.1.1

LSA Flush Log

Date: 2013-09-22 Time: 14:47:33 Received MaxAge LSA from 10.1.1.1

Type: 1 LS ID: 2.2.2.2 AdvRtr: 2.2.2.2 Seq#: 80000001

Date: 2013-09-22 Time: 14:47:33 Flushed MaxAge LSA by the self

Type: 1 LS ID: 1.1.1.1 AdvRtr: 1.1.1.1 Seq#: 80000001

Date: 2013-09-22 Time: 14:47:33 Received MaxAge LSA from 10.1.2.2

Type: 1 LS ID: 2.2.2.2 AdvRtr: 2.2.2.2 Seq#: 80000001

Date: 2013-09-22 Time: 14:47:33 Flushed MaxAge LSA by the self

Type: 1 LS ID: 1.1.1.1 AdvRtr: 1.1.1.1 Seq#: 80000001

Table 6 Command output

Field	Description
Date/Time	Time when the device receives an LSA that has reached the maximum age.
Received MaxAge LSA from X.X.X.X	The device received an LSA that has reached the maximum age from X.X.X.X.
Flushed MaxAge LSA by the self	The device flushed the LSA that has reached the maximum age.
Type	LSA type.
LS ID	LSA link state ID.
AdvRtr	Advertising router.
Seq#	LSA sequence number.

‌

# Display OSPF route calculation log information for all processes.

<Sysname> display ospf event-log spf

OSPF Process 1 with Router ID 1.1.1.2

SPF Log

Date Time Duration Intra Inter External Reason

2012-06-27 15:28:26 0.95 1 1 10000 Intra-area LSA

2012-06-27 15:28:23 0.2 0 0 0 Area 0 full neighbor

2012-06-27 15:28:19 0 0 0 0 Intra-area LSA

2012-06-27 15:28:19 0 0 0 0 external LSA

2012-06-27 15:28:19 0.3 0 0 0 Intra-area LSA

2012-06-27 15:28:12 0 1 0 0 Intra-area LSA

2012-06-27 15:28:11 0 0 0 0 Routing policy

2012-06-27 15:28:11 0 0 0 0 Intra-area LSA

Table 7 Command output

Field	Description
Date/Time	Time when the route calculation starts.
Duration	Duration of the route calculation, in seconds.
Intra	Number of intra-area routes newly installed in the IP routing table.
Inter	Number of inter-area routes newly installed in the IP routing table.
External	Number of external routes newly installed in the IP routing table.
Reason	Reasons why the route calculation is performed: · Intra-area LSA—Intra-area LSA changes. · Inter-area LSA—Inter-area LSA changes. · External LSA—External LSA changes. · Configuration—Configuration changes. · Area 0 full neighbor—Number of FULL-state neighbors in Area 0 changes. · Area 0 up interface—Number of interfaces in up state in Area 0 changes. · LSDB overflow state—Overflow status changes. · AS number—AS number changes. · ABR summarization—ABR summarization changes. · GR end—GR ends. · Routing policy—Routing policy changes. · Intra-area tunnel—Intra-area tunnel changes. · Others—Other reasons.

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# Display OSPF neighbor log information for OSPF process 1.

<Sysname> display ospf 1 event-log peer

OSPF Process 1 with Router ID 1.1.1.1

Neighbors Log

Date Time Local Address Remote Address Router ID Reason

2012-12-31 12:35:45 197.168.1.1 197.168.1.2 2.2.2.2 IntPhyChange

2012-12-31 12:35:19 197.168.1.1 197.168.1.2 2.2.2.2 ConfNssaArea

2012-12-31 12:34:59 197.168.1.1 197.168.1.2 2.2.2.2 SilentInt

Table 8 Command output

Field	Description
Date/Time	Time when the neighbor state changes.
Local Address	Local address of the neighbor relationship.
Remote Address	Peer address of the neighbor relationship.
Router ID	Neighbor router ID.
Reason	Reasons for neighbor state changes: · ResetConnect—The connection is lost due to insufficient memory. · IntChange—The interface parameter has changed. · VlinkChange—The virtual link parameter has changed. · ShamlinkChange—The sham link parameter has changed. · ResetOspf—The OSPF process is reset. · UndoOspf—The OSPF process is deleted. · UndoArea—The OSPF area is deleted. · UndoNetwork—The interface is disabled. · SilentInt—The interface is configured as a silent interface. · IntLogChange—The logical attribute of the interface has changed. · IntPhyChange—The physical attribute of the interface has changed. · IntVliChange—The virtual link attribute of the interface has changed. · VlinkDown—The virtual link goes down. · ShamlinkDown—The sham link goes down. · DeadExpired—The dead timer expires. · ConfStubArea—The interface is configured with stub area parameters. · ConfNssaArea—The interface is configured with NSSA area parameters. · AuthChange—The authentication type has changed. · OpaqueChange—The Opaque capability has changed. · Retrans—Excessive retransmissions. · LLSChange—The LLS capability has changed. · OOBChange—The OOB capability has changed. · GRChange—The GR capability has changed. · BFDDown—The interface is shut down by BFD. · BadLSReq—The interface receives BadLSReq events. · SeqMismatch—The interface receives SeqNumberMismatch events. · 1-Way—The interface receives 1-Way events. · FilterLSA—Peer disconnection occurs because LSA filter settings have changed or the ACL used by the LSA filter has change · shutdown—The shutdown process command is executed.

‌

Related commands

reset ospf event-log

display ospf event-log hello

Use display ospf event-log hello to display OSPF log information about received or sent hello packets.

Syntax

display ospf [ process-id ] event-log hello { received [ abnormal | dropped ] | sent } [ neighbor-id ]

display ospf [ process-id ] event-log hello sent { abnormal | failed } [ neighbor-address ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

process-id: Specifies an OSPF process by its ID in the range of 1 to 65535. If you do not specify this argument, the command displays OSPF log information for all processes.

received: Specifies log information for received hello packets.

sent: Specifies log information for sent hello packets.

abnormal: Specifies log information for abnormal hello packets received or sent at intervals greater than or equal to 1.5 times the hello interval.

dropped: Specifies log information for received hello packets that were dropped.

failed: Specifies log information for hello packets that failed to be sent.

neighbor-address: Specifies a neighbor by its IP address. If you do not specify this argument, the command displays received or sent hello packet log information for all neighbors.

neighbor-id: Specifies a neighbor by its router ID. If you do not specify this argument, the command displays received or sent hello packet log information for all neighbors.

Examples

# Display log information for sent hello packets. ‌

<Sysname> display ospf event-log hello sent

OSPF Process 1 with Router ID 5.5.5.5

Hello Log

Interface: Vlan10

Neighbor address: 10.1.1.2, NbrID: 1.0.0.2

First 4 hello packets sent:

2018-08-05 20:10:10:121, failed, errno: 132

2018-08-05 20:10:30:121, succeeded

2018-08-05 20:10:20:121, succeeded

2018-08-05 20:10:40:121, succeeded

Last 4 hello packets sent before Full->Down at 2018-08-06 14:52:10:121

2018-08-06 14:51:40:021, succeeded

2018-08-06 14:51:50:021, succeeded

2018-08-06 14:52:00:021, failed, errno: 132

2018-08-06 14:52:10:010, failed, errno: 132

Interface: Vlan10

Neighbor address: 10.1.1.2, NbrID: 1.0.0.2

First 4 hello packets sent:

2018-08-05 20:10:10:121, failed, errno: 132

2018-08-05 20:10:30:121, succeeded

2018-08-05 20:10:20:121, succeeded

2018-08-05 20:10:40:121, succeeded

Last 4 hello packets sent before Full->Init at 2018-08-06 11:16:20:171

2018-08-06 11:15:20:121, succeeded

2018-08-06 11:15:30:121, succeeded

2018-08-06 11:15:40:121, succeeded

2018-08-06 11:15:50:121, succeeded

Table 9 Command output

Field	Description
Interface	Interface that sends the hello packets.
Neighbor address	IP address of the neighbor.
NbrID	Router ID of the neighbor.
First 4 hello packets sent	Time and result (succeeded or failed) for sending the first four hello packets. For a packet failed to be sent, an error code is displayed in the errno field. Error codes and corresponding failure reasons are as follows: · 4—EINTR. Interrupted system call. · 9—EBADF. Bad file descriptor. · 11—EAGAIN. Resource temporarily unavailable. · 12—ENOMEM. Cannot allocate memory. · 32—EPIPE. Broken pipe. · 88—ENOTSOCK. Socket operation on non-socket. · 90—EMSGSIZE. Message too long. · 95—EOPNOTSUPP. Operation not supported. · 104—ECONNRESET. Connection reset by peer. · 107—ENOTCONN. Transport endpoint is not connected. · 113—EHOSTUNREACH. No route to host. · 132—ENOBUFS. No buffer space available.
Last 4 hello packets sent before Full->Down at 2018-01-06 14:52:10:121	Time and result (succeeded or failed) for sending the last four hello packets before neighbor state change. For a packet failed to be sent, an error code is displayed in the errno field. Error codes and corresponding failure reasons are as follows: · 4—EINTR. Interrupted system call. · 9—EBADF. Bad file descriptor. · 11—EAGAIN. Resource temporarily unavailable. · 12—ENOMEM. Cannot allocate memory. · 32—EPIPE. Broken pipe. · 88—ENOTSOCK. Socket operation on non-socket. · 90—EMSGSIZE. Message too long. · 95—EOPNOTSUPP. Operation not supported. · 104—ECONNRESET. Connection reset by peer. · 107—ENOTCONN. Transport endpoint is not connected. · 113—EHOSTUNREACH. No route to host. · 132—ENOBUFS. No buffer space available.

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# Display log information for hello packets that failed to be sent. ‌

<Sysname> display ospf event-log hello sent failed

OSPF Process 1 with Router ID 5.5.5.5

Hello Log

Date: 2018-08-06 Time: 14:51:20:121 Interface: Vlan10

Destination address: 224.0.0.5, sent failed, errno: 132

Date: 2018-08-06 Time: 11:20:20:116 Interface: Vlan11

Destination address: 10.1.1.2, sent failed, errno: 132

Table 10 Command output

Field	Description
Date	Date for the hello packet sending failure, in the format of YYYY-MM-DD. YYYY represents the year, MM represents the month, and DD represents the day.
Time	Time for the hello packet sending failure, in the format of hh:mm:ss:xxx. hh represents the hours, mm represents the minutes, and ss represents the seconds, and xxx represents the milliseconds.
Interface	Interface that sends the hello packet.
Destination address	Destination IP address of the hello packet.
errno	Error code for the hello packet sending failure. Options include: · 4—EINTR. Interrupted system call. · 9—EBADF. Bad file descriptor. · 11—EAGAIN. Resource temporarily unavailable. · 12—ENOMEM. Cannot allocate memory. · 32—EPIPE. Broken pipe. · 88—ENOTSOCK. Socket operation on non-socket. · 90—EMSGSIZE. Message too long. · 95—EOPNOTSUPP. Operation not supported. · 104—ECONNRESET. Connection reset by peer. · 107—ENOTCONN. Transport endpoint is not connected. · 113—EHOSTUNREACH. No route to host. · 132—ENOBUFS. No buffer space available.

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# Display log information for abnormal hello packets sent. ‌

<Sysname> display ospf event-log hello sent abnormal

OSPF Process 1 with Router ID 5.5.5.5

Hello Log

Date: 2018-08-06 Time: 11:21:12:121 Interface: Vlan12

Destination address: 224.0.0.5, last one sent: 2018-08-06 11:20:51:916

Date: 2018-08-06 Time: 11:56:21:312 Interface: Vlan12

Destination address: 10.1.1.2, last one sent: 2018-08-06 11:56:02:691

Table 11 Command output

Field	Description
Date	Date for sending the abnormal hello packet, in the format of YYYY-MM-DD. YYYY represents the year, MM represents the month, and DD represents the day.
Time	Time for sending the abnormal hello packet, in the format of hh:mm:ss:xxx. hh represents the hours, mm represents the minutes, and ss represents the seconds, and xxx represents the milliseconds.
Interface	Interface that sends the abnormal hello packet.
Destination address	Destination IP address of the abnormal hello packet.
last one sent	Time for sending the last hello packet before sending the abnormal hello packet.

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# Display log information for received hello packets. ‌

<Sysname> display ospf event-log hello received

OSPF Process 1 with Router ID 5.5.5.5

Hello Log

Interface: Vlan10

Neighbor address: 10.1.1.2, NbrID: 1.0.0.2

First 4 hello packets received:

2018-08-05 20:11:10:121

2018-08-05 20:11:30:121

2018-08-05 20:11:20:121

2018-08-05 20:11:40:121

Last 4 hello packets received before Exchange->Down at 2018-08-06 14:52:10:121

2018-08-06 14:51:10:121

2018-08-06 14:51:30:121

2018-08-06 14:51:20:121

2018-08-06 14:51:40:121

Interface: Vlan10

Neighbor address: 10.1.1.1, NbrID: 1.0.0.1

First 4 hello packets received:

2018-08-06 19:11:15:121

2018-08-06 19:11:35:121

2018-08-06 19:11:25:121

2018-08-06 19:11:45:121

Last 4 hello packets received before Full->Init at 2018-08-06 21:16:20:171

2018-08-06 21:15:45:121

2018-08-06 21:15:55:121

2018-08-06 21:16:05:121

2018-08-06 21:16:15:121

Table 12 Command output

Field	Description
Interface	Interface that receives the hello packets.
Neighbor address	IP address of the neighbor.
NbrID	Router ID of the neighbor.
First 4 hello packets received	Time for receiving the first four hello packets.
Last 4 hello packets received before Full->Init at 2018-01-06 21:16:20:171	Time for receiving the last four hello packets before neighbor state change, in the format of YYYY-MM-DD hh:mm:ss:xxx. YYYY represents the year, MM represents the month, and DD represents the day. hh represents the hours, mm represents the minutes, and ss represents the seconds, and xxx represents the milliseconds.

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# Display log information for received hello packets that were dropped. ‌

<Sysname> display ospf event-log hello received dropped

OSPF Process 1 with Router ID 5.5.5.5

Hello Log

Date: 2018-08-06 Time: 14:51:22:791 Interface: Vlan10

Source address: 10.1.1.1, NbrID: 1.0.0.1, area: 0.0.0.1

Drop reason: Hello-time mismatch

Date: 2018-08-06 Time: 14:51:20:121 Interface: Vlan10

Source address: 10.1.1.2, NbrID: 1.0.0.2, area: 0.0.0.1

Drop reason: NP-bit mismatch

Table 13 Command output

Field	Description
Date	Date for dropping the received hello packet, in the format of YYYY-MM-DD. YYYY represents the year, MM represents the month, and DD represents the day.
Time	Time for dropping the received hello packet, in the format of hh:mm:ss:xxx. hh represents the hours, mm represents the minutes, and ss represents the seconds, and xxx represents the milliseconds.
Interface	Interface that receives the hello packet.
Source address	Source IP address of the received hello packet.
NbrID	Router ID of the neighbor.
area	Area to which the neighbor interface belongs.
Drop reason	Reason for dropping the hello packet: · Area under reset—The area is in the reset progress. · Router ID conflict—Route ID conflict. · Area mismatch—Area ID mismatch. · Unknown virtual link—The hello packet is from an unknown virtual link. · Authentication failure—Authentication check failure. · Peer address check failure—Neighbor address check failure. · Not DR or BDR—The destination IP address of the hello packet is 224.0.0.6, but the interface is not a DR or BDR. · Unknown unicast peer—The hello packet is from an unknown unicast neighbor. · Option mismatch—Option mismatch. · Subnet mask mismatch—Subnet mask mismatch. · Address mismatch—Address range mismatch. · Hello timer mismatch—Hello timer mismatch. · Dead timer mismatch—Dead timer mismatch. · Peer change—The source IP address or router ID has changed. · FilterLSA—Peer disconnection occurs because LSA filter settings have changed or the ACL used by the LSA filter has changed.

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# Display log information for abnormal hello packets received. ‌

<Sysname> display ospf event-log hello received abnormal

OSPF Process 1 with Router ID 5.5.5.5

Hello Log

Date: 2018-08-06 Time: 10:12:22:121 Interface: Vlan10

Source address: 10.1.1.2, NbrID: 1.0.0.2, area: 0.0.0.1

Last one received: 2018-08-06 10:12:04:212

Date: 2018-08-06 Time: 14:51:20:121 Interface: Vlan10

Source address: 10.1.1.2, NbrID: 1.0.0.2, area: 0.0.0.1

Last one received: 2018-08-06 14:51:05:113

Table 14 Command output

Field	Description
Date	Date for receiving the abnormal hello packet, in the format of YYYY-MM-DD. YYYY represents the year, MM represents the month, and DD represents the day.
Time	Time for receiving the abnormal hello packet, in the format of hh:mm:ss:xxx. hh represents the hours, mm represents the minutes, and ss represents the seconds, and xxx represents the milliseconds.
Interface	Interface that receives the abnormal hello packet.
Source address	Source IP address of the received abnormal hello packet.
NbrID	Router ID of the neighbor.
area	Area to which the neighbor interface belongs.
last one sent	Time for receiving the last hello packet before receiving the abnormal hello packet.

‌

Related commands

reset ospf event-log hello

display ospf hostname-table

Use display ospf hostname-table to display the router ID-to-host name mapping table.

Syntax

display ospf [ process-id ] hostname-table

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

process-id: Specifies an OSPF process by its ID in the range of 1 to 65535. If you do not specify an OSPF process, this command displays the router ID-to-host name mapping tables for all OSPF processes.

Examples

# Display the router ID-to-host name mapping tables for all OSPF processes.

<Sysname> display ospf hostname-table

OSPF Process 1 with Router ID 192.168.56.21

Hostname Table Information

Area: 0.0.0.1

Router ID Hostname

192.168.56.21 RouterA

display ospf interface

Use display ospf interface to display OSPF interface information.

Syntax

display ospf [ process-id ] interface [ interface-type interface-number | verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

process-id: Specifies an OSPF process ID in the range of 1 to 65535. If you do not specify this argument, the command displays the OSPF interface information for all OSPF processes.

interface-type interface-number: Specifies an interface by its type and number.

verbose: Displays detailed OSPF information for all interfaces.

Usage guidelines

If you do not specify the interface-type interface-number argument or the verbose keyword, this command displays OSPF brief information for all interfaces.

Examples

# Display all OSPF interface brief information.

<Sysname> display ospf interface

OSPF Process 1 with Router ID 192.168.1.1

Interfaces

Area: 0.0.0.0

IP Address Type State Cost Pri DR BDR

192.168.1.1 PTP P-2-P 1562 1 0.0.0.0 0.0.0.0

Area: 0.0.0.1

IP Address Type State Cost Pri DR BDR

172.16.0.1 Broadcast DR 1 1 172.16.0.1 0.0.0.0

Table 15 Command output

Field	Description
Area	Area ID of the interface.
IP Address	Interface IP address (regardless of whether TE is enabled or not).
Type	Interface network type: PTP (P2P), PTMP (P2MP), Broadcast, or NBMA.
State	Interface state: · Down—No protocol traffic can be sent or received on the interface. · Loopback—The interface is in loopback state and it cannot forward traffic. · Waiting—The interface starts sending and receiving Hello packets. The router is trying to determine the identity of the (Backup) designated router for the network. · P-2-P—The interface will send Hello packets at the hello interval, and try to establish an adjacency with the neighbor. · DR—The router is the designated router on the network. · BDR—The router is the backup designated router on the network. · DROther—The router is a DR Other router on the attached network.
Cost	Interface cost.
Pri	Router priority.
DR	DR on the interface's network segment.
BDR	BDR on the interface's network segment.

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# Display detailed information about VLAN-interface 10. ‌

<Sysname> display ospf interface vlan-interface 10

OSPF Process 1 with Router ID 192.168.1.1

Interfaces

Area: 0.0.0.0

Interface: 172.16.0.1 (Vlan-interface10)

Cost: 1 State: DR Type: Broadcast MTU: 1500

Priority: 1

Designated router: 172.16.0.1

Backup designated router: 0.0.0.0

Timers: Hello 10, Dead 40, Poll 40, Retransmit 5, Transmit Delay 1

FRR backup: Enabled

FRR TI-LFA: Enabled

FRR remote-lfa: Enabled

Primary path detection mode: BFD ctrl

Enabled by interface configuration (including secondary IP addresses)

BFD: echo

Cryptographic authentication: Enabled, inherited

The last key is 1.

LDP state: No-LDP

LDP sync state: Achieved

Prefix-SID type: Index

Value: 876, Explicit-null, N-flag-clear

Process ID: ospf 1

Prefix-SID validity: Invalid

Table 16 Command output

Field	Description
Interface	Information about the interface, such as the IP address.
Timers	OSPF timers (in seconds): Hello, Dead, Poll, and Retransmit.
Transmit Delay	LSA transmission delay on the interface, in seconds.
FRR backup	Whether LFA calculation is enabled on an interface.
FRR remote-LFA	Whether remote LFA calculation is enabled on an interface.
FRR TI-LFA	Whether TI-LFA calculation is enabled on an interface.
Primary path detection mode	Primary link detection mode: · BFD ctrl—BFD control packet mode. · BFD echo—BFD echo packet mode.
Enabled by interface configuration (including secondary IP addresses)	OSPF is enabled on the interface (including secondary IP addresses).
BFD	BFD session mode enabled on the interface: · ctrl—BFD control packet mode. · echo—BFD echo packet mode.
Keychain authentication: Enabled (xx), inherited	Keychain authentication is enabled. The name of the keychain is xx. If the interface uses the authentication mode specified for the area to which the interface belongs, this field displays inherited after the authentication mode.
Simple authentication: Enabled, inherited	The interface uses the simple authentication mode. The inherited attribute indicates that the interface uses the authentication mode specified for the area to which the interface belongs.
No authentication is required	None authentication is enabled.
Cryptographic authentication: Enabled, inherited	Cryptographic authentication mode (MD5, HMAC-MD5, or HMAC-SHA-256) is used by the interface. The inherited attribute indicates that the interface uses the authentication mode specified for the area to which the interface belongs.
The last key is xx	The most recent MD5/HMAC-MD5/HMAC-SHA-256 authentication key ID is xx.
The rollover is in progress, xx neighbor(s) left.	Key rollover for MD5/HMAC-MD5/HMAC-SHA-256 authentication is in progress. The number of neighbors that have not completed rollover is xx.
LDP state	LDP state: · Init—Initialization state. LDP has not been delivered. · No-LDP—LDP is not configured. · Not ready—LDP sessions have not been established. · Ready—LDP sessions have been established.
LDP sync state	LDP IGP synchronization state: · Init—Initialization state. · Achieved—LDP has been synchronized. · Max cost—OSPF advertises the maximum cost in LSAs.
Prefix-SID type	Prefix SID type: · Absolute—Absolute value of the prefix SID. · Index—Index value of the prefix SID.
Nexthop	Next hop address. This field displays 0.0.0.0 for a P2P network.
Type	Adjacency SID type: · Absolute—Absolute value of the adjacency SID. · Index—Index value of the adjacency SID.
Result	Adjacency SID application result: · Succeeded—Applied for adjacency SID successfully. · Conflicting—Adjacency SID conflict occurred. · Init—Adjacency SID application is in progress or adjacency SID assignment is not enabled.
Value	Prefix SID value and flag information: · Explicit-null—The upstream neighbor uses an explicit null flag to replace the prefix SID. · N-flag-clear—The prefix SID is the SID to a group of SR nodes.
ProcessID	OSPF process ID specified during prefix SID configuration.
Prefix-SID validity	Whether the prefix SID is valid: · Invalid—The prefix SID is invalid. Possible reasons include: ¡ The prefix SID is out of the SRGB range. ¡ The OSPF process ID configured on the loopback interface is different from the OSPF process ID specified during prefix SID configuration. · Valid—The prefix SID is valid.

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display ospf interface hello

Use display ospf interface hello to display information about hello packets sent by OSPF interfaces.

Syntax

display ospf [ process-id ] interface [ interface-type interface-number ] hello

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

process-id: Specifies an OSPF process ID in the range of 1 to 65535. If you do not specify this argument, the command displays hello packet information for all OSPF processes.

interface-type interface-number: Specifies an interface by its type and number. If you do not specify this argument, the command displays information about the hello packets sent by all OSPF interfaces.

Usage guidelines

This command displays information for only the hello packets sent in multicast.

Examples

# Display information about hello packets sent by all OSPF interfaces. ‌

<Sysname> display ospf interface hello

OSPF Process 1 with Router ID 192.168.1.1

Interfaces

Area: 0.0.0.0

Interface: 172.16.0.1 (Vlan-interface10)

First 4 hello packets sent:

2018-08-05 11:05:10:121, succeeded

2018-08-05 11:05:20:121, succeeded

2018-08-05 11:05:30:121, succeeded

2018-08-05 11:05:40:121, succeeded

Last 4 hello packets sent:

2018-08-06 11:15:10:121, succeeded

2018-08-06 11:15:20:121, succeeded

2018-08-06 11:15:30:121, succeeded

2018-08-06 11:15:40:121, succeeded

Table 17 Command output

Field	Description
Area	Area to which the interface belongs.
Interface	IP address of the interface.
First 4 hello packets sent	Time and result (succeeded or failed) for sending the first four hello packets.
Last 4 hello packets sent	Time and result (succeeded or failed) for sending the last four hello packets when the command is executed.

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display ospf lsdb

Use display ospf lsdb to display OSPF LSDB information.

Syntax

display ospf [ process-id ] lsdb [ brief | originate-router advertising-router-id | self-originate ] [ age { max-value max-age-value | min-value min-age-value } * ] [ resolve-hostname ]

display ospf [ process-id ] lsdb hostname host-name [ age { max-value max-age-value | min-value min-age-value } * ]

display ospf [ process-id ] lsdb { ase | opaque-as } [ link-state-id ] [ originate-router advertising-router-id | self-originate ] [ age { max-value max-age-value | min-value min-age-value } * ] [ resolve-hostname ]

display ospf [ process-id ] lsdb { ase | opaque-as } [ link-state-id ] hostname host-name [ age { max-value max-age-value | min-value min-age-value } * ]

display ospf [ process-id ] [ area area-id ] lsdb { asbr | network | nssa | opaque-area | opaque-link | router | summary } [ link-state-id ] [ originate-router advertising-router-id | self-originate ] [ age { max-value max-age-value | min-value min-age-value } * ] [ resolve-hostname ]

display ospf [ process-id ] [ area area-id ] lsdb { asbr | network | nssa | opaque-area | opaque-link | router | summary } [ link-state-id ] hostname host-name [ age { max-value max-age-value | min-value min-age-value } * ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

process-id: Specifies an OSPF process by its ID in the range of 1 to 65535. If you do not specify this argument, the command displays LSDB information for all OSPF processes.

age: Displays LSAs whose ages are in the specified range. If you do not specify this keyword, the command displays all LSAs in the LSDB.

max-value max-age-value: Specifies the maximum age of LSAs, in the range of 0 to 3600 seconds. The default value is 3600.

min-value min-age-value: Specifies the minimum age of LSAs, in the range of 0 to 3600 seconds. The default value is 0. The min-age-value cannot be greater than the max-age-value.

brief: Displays brief LSDB information.

asbr: Displays Type-4 LSA (ASBR Summary LSA) information in the LSDB.

ase: Displays Type-5 LSA (AS External LSA) information in the LSDB.

network: Displays Type-2 LSA (Network LSA) information in the LSDB.

nssa: Displays Type-7 LSA (NSSA External LSA) information in the LSDB.

opaque-area: Displays Type-10 LSA (Opaque-area LSA) information in the LSDB.

opaque-as: Displays Type-11 LSA (Opaque-AS LSA) information in the LSDB.

opaque-link: Displays Type-9 LSA (Opaque-link LSA) information in the LSDB.

router: Displays Type-1 LSA (Router LSA) information in the LSDB.

summary: Displays Type-3 LSA (Network Summary LSA) information in the LSDB.

link-state-id: Specifies a link state ID in the IP address format.

originate-router advertising-router-id: Specifies an advertising router by its ID.

self-originate: Displays information about self-originated LSAs.

hostname host-name: Displays LSAs advertised by the router with the specified host name. If you do not specify this option, the command displays all LSAs in the OSPF LSDB.

resolve-hostname: Displays host names in OSPF LSDB information. If you do not specify this keyword, the OSPF LSDB information does not include host names.

Examples

# Display OSPF LSDB information.

<Sysname> display ospf lsdb

OSPF Process 1 with Router ID 192.168.0.1

Link State Database

Area: 0.0.0.0

Type LinkState ID AdvRouter Age Len Sequence Metric

Router 192.168.0.2 192.168.0.2 474 36 80000004 0

Router 192.168.0.1 192.168.0.1 21 36 80000009 0

Network 192.168.0.1 192.168.0.1 321 32 80000003 0

Sum-Net 192.168.1.0 192.168.0.1 321 28 80000002 1

Sum-Net 192.168.2.0 192.168.0.2 474 28 80000002 1

Area: 0.0.0.1

Type LinkState ID AdvRouter Age Len Sequence Metric

Router 192.168.0.1 192.168.0.1 21 36 80000005 0

Sum-Net 192.168.2.0 192.168.0.1 321 28 80000002 2

Sum-Net 192.168.0.0 192.168.0.1 321 28 80000002 1

Type 9 Opaque (Link-Local Scope) Database

Flags: * -Vlink interface LSA

Type LinkState ID AdvRouter Age Len Sequence Interfaces

*Opq-Link 3.0.0.0 7.2.2.1 8 14 80000001 10.1.1.2

*Opq-Link 3.0.0.0 7.2.2.2 8 14 80000001 20.1.1.2

# Display OSPF LSDB information, including the host names of the advertising routers.

<Sysname> display ospf lsdb resolve-hostname

OSPF Process 1 with Router ID 2.2.2.2

Link State Database

Area: 0.0.0.0

Type LinkState ID AdvRouter Age Len Sequence Metric

Router 1.1.1.1 1.1.1.1 1419 36 80000004 0

Router 2.2.2.2 RouterB 1420 36 80000004 0

Network 192.168.12.2 RouterB 1420 32 80000001 0

Sum-Net 192.168.13.0 1.1.1.1 1456 28 80000001 1

Area: 0.0.0.1

Type LinkState ID AdvRouter Age Len Sequence Metric

Router 3.3.3.3 3.3.3.3 1416 36 80000003 0

Router 1.1.1.1 1.1.1.1 1415 36 80000003 0

Network 192.168.13.2 3.3.3.3 1416 32 80000001 0

Sum-Net 192.168.12.0 1.1.1.1 1456 28 80000001 1

Type 10 Opaque (Area-Local Scope) Database

Type LinkState ID AdvRouter Age Len Sequence Area

Opq-Area 4.0.0.0 RouterB 470 32 80000001 0.0.0.0

Table 18 Command output

Field	Description
Area	LSDB information for the area.
Type	LSA type.
LinkState ID	Link state ID.
AdvRouter	Advertising router.
Age	Age of the LSA.
Len	Length of the LSA.
Sequence	Sequence number of the LSA.
Metric	Cost of the LSA.
*Opq-Link	Opaque LSA generated by a virtual link.
Opq-Area	Received Type-10 LSA.

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# Display OSPF brief LSDB information.

<Sysname> display ospf lsdb brief

OSPF Process 1 with Router ID 1.1.1.1

LS Database Statistics

Area ID Router Network S-Net S-ASBR Type-7 | SubTotal

0.0.0.0 2 1 1 0 0 | 4

0.0.0.1 2 1 3 0 2 | 8

Total 4 2 4 0 2 |

-------------------------------------------------------------+---------

Area ID Opq-9 Opq-10 | SubTotal

0.0.0.0 0 9 | 9

0.0.0.1 0 4 | 4

Total 0 13 |

-------------------------------------------------------------+---------

ASE Opq-11 | SubTotal

Total 1 0 | 1

-------------------------------------------------------------+---------

| Total

| 26

Table 19 Command output

Field	Description
Router	Number of Type-1 LSAs.
Network	Number of Type-2 LSAs.
S-Net	Number of Type-3 LSAs.
S-ASBR	Number of Type-4 LSAs.
Type-7	Number of Type-7 LSAs.
Opq-9	Number of Type-9 LSAs.
Opq-10	Number of Type-10 LSAs.
ASE	Number of Type-5 LSAs.
Opq-11	Number of Type-11 LSAs.
SubTotal	Total number of LSAs in the same area.
Total	Total number of LSAs that are of the same type, or total number of LSAs.

‌

# Display Type-2 LSA information in the LSDB.

<Sysname> display ospf 1 lsdb network

OSPF Process 1 with Router ID 192.168.1.1

Link State Database

Area: 0.0.0.0

Type : Network

LS ID : 192.168.0.2

Adv Rtr : 192.168.2.1

LS age : 922

Len : 32

Options : E

Seq# : 80000003

Checksum : 0x8d1b

Net Mask : 255.255.255.0

Attached Router 192.168.1.1

Attached Router 192.168.2.1

Area: 0.0.0.1

Type : Network

LS ID : 192.168.1.2

Adv Rtr : 192.168.1.2

LS age : 782

Len : 32

Options : NP

Seq# : 80000003

Checksum : 0x2a77

Net Mask : 255.255.255.0

Attached Router 192.168.1.1

Attached Router 192.168.1.2

# Display Type-2 LSA information in the LSDB, including the host names of the advertising routers.

<Sysname> display ospf 1 lsdb network resolve-hostname

OSPF Process 1 with Router ID 2.2.2.2

Link State Database

Area: 0.0.0.0

Type : Network

LS ID : 192.168.12.2

Adv Rtr : 2.2.2.2

Hostname : RouterB

LS age : 1552

Len : 32

Options : O E

Seq# : 80000001

Checksum : 0xbdd0

Net Mask : 255.255.255.0

Attached Router 1.1.1.1

Attached Router 2.2.2.2

Area: 0.0.0.1

Type : Network

LS ID : 192.168.13.2

Adv Rtr : 3.3.3.3

LS age : 1548

Len : 32

Options : O E

Seq# : 80000001

Checksum : 0xc6be

Net Mask : 255.255.255.0

Attached Router 1.1.1.1

Attached Router 3.3.3.3

Table 20 Command output

Field	Description
Type	LSA type.
LS ID	DR IP address.
Adv Rtr	Router that advertised the LSA.
Hostname	Host name of the advertising router.
LS age	LSA age time.
Len	LSA length.
Options	LSA options: · O—Opaque LSA advertisement capability. · E—AS External LSA reception capability. · EA—External extended LSA reception capability. · DC—On-demand link support. · NP—N indicates support for NSSA external LSAs. P indicates the capability of an NSSA ABR to translate Type-7 LSAs into Type-5 LSAs.
Seq#	LSA sequence number.
Checksum	LSA checksum.
Net Mask	Network mask.
Attached Router	ID of the router that established adjacency with the DR, and ID of the DR itself.

‌

# Display Type-9 LSA information in the LSDB for OSPF process 1.

<Sysname> display ospf 1 lsdb opaque-link

OSPF Process 1 with Router ID 1.1.1.1

Link State Database

Area: 0.0.0.0

Type : Opq-Link

LS ID : 3.0.0.0

Adv Rtr : 1.1.1.1

LS age : 2

Len : 44

Options : O E

Seq# : 80000001

Checksum : 0x31cf

Opaque type: 3(Grace LSA)

Opaque ID: 0

IETF Graceful Restart Period: 120

Restart Reason: 1 - software restart

Neighbor Interface Address : 192.168.12.1

# Display Type-10 LSA information in the LSDB for OSPF process 1.

<Sysname> display ospf 1 lsdb opaque-area

OSPF Process 1 with Router ID 2.2.2.2

Link State Database

Area: 0.0.0.0

Type : Opq-Area

LS ID : 4.0.0.0

Adv Rtr : 1.1.1.1

LS age : 1311

Len : 52

Options : O E

Seq# : 8000015c

Checksum : 0x4323

Opaque type: 4(Router information)

Opaque ID: 0

Router information TLV:

Length : 4

Capabilities:

All Capability Bits: 0x60000000

Graceful restart helper capable

Stub router capable

Segment routing algorithm TLV:

Length : 1

Algorithm: 0

Segment routing range TLV:

Length: 12

Range : 1001

SID sub-TLV:

Length: 3

Label : 16000

Type : Opq-Area

LS ID : 7.0.0.0

Adv Rtr : 1.1.1.1

LS age : 1311

Len : 44

Options : O E

Seq# : 8000012f

Checksum : 0xabcf

Opaque type: 7(Extended prefix)

Opaque ID: 0

Extended prefix TLV:

Length : 20

Route type: 1

AF : 0

Flags : N

Prefix : 23.1.1.1/32

SID sub-TLV:

Length : 8

Flags : NP/-/E/-/-

MTID : 0

Algorithm : 0

SID index : 101

LAN adj sub-TLV:

Length : 11

Flags (B/V/L/G/P): 0/1/1/0/0

MTID : 0

Weight : 0

Neighbor ID: 1.1.1.1

Label : 1279

# Display Type-11 LSA information in the LSDB for OSPF process 1.

<Sysname> display ospf lsdb opaque-as

OSPF Process 1 with Router ID 1.1.1.1

Link State Database

Type : Opq-AS

LS ID : 4.0.0.0

Adv Rtr : 1.1.1.1

LS Age : 10

Len : 32

Options : O E

Seq# : 80000001

Checksum : 0x3ca5

Opaque Type: 4(Router Information)

Opaque ID: 0

HostName: device1

Table 21 Command output

Field	Description
Type	LSA type: · Opq-Link—Type-9 LSA, which is flooded on the local link. · Opq-Area—Type-10 LSA, which is flooded within an area. · Opq-AS—Type-11 LSA, which is flooded within an AS.
LS ID	LSA link state ID, a combination of the opaque type and the opaque ID. The first 8 bits indicates the opaque type and the last 24 bits indicates the opaque ID.
Adv Rtr	Router that advertised the LSA.
Hostname	Host name of the router that advertised the LSA.
LS age	LSA aging time.
Len	LSA length.
Options	LSA options: · O—Opaque LSA advertisement capability. · E—AS External LSA reception capability. · L—Signaling capability of the local link. · DC—On-demand link support. · NP—N indicates support for NSSA external LSAs. P indicates the capability of an NSSA ABR to translate Type-7 LSAs into Type-5 LSAs.
Seq#	LSA sequence number.
Checksum	LSA checksum.
Opaque type	Opaque type: · 1(Traffic Engineering)—Opaque LSAs used for MPLS TE. · 3(Grace LSA)—Opaque LSAs used for GR. · 4(Router information)—Opaque LSAs used for route capability advertisement. · 7(Extended prefix)—Opaque LSAs used for SID or MPLS label advertisement. · 8(Extended link)—Opaque LSAs used for extended link information advertisement.
Opaque ID	Opaque ID
IETF Graceful Restart Period	GR restart interval in seconds.
Restart Reason	GR restart reason: · 0 - unknown. · 1 - software restart. · 2 - software reload/upgrade. · 3 - switch to redundant control processor.
Neighbor Interface Address	IP address of the local interface used for neighbor relationship establishment.
Router information TLV	Router capability TLV information.
Length	TLV length in bytes.
Range size	Number of continuous SIDs to allocate.
Capabilities	Router capabilities.
All capability bits	All capability bits, indicating the features that the device supports.
Algorithm	Prefix related algorithm.
Range	Label range.
SID sub-TLV	Prefix SID sub-TLV.
Label	Minimum label value.
Route type	Route type: · 1—Intra-area route. · 3—Inter-area route.
AF	Address family information.
Flags	Prefix SID flag: · A —Attach flag (A-Flag), indicating the inter-area prefix is generated by the ABR. · N—Node flag (N-Flag), indicating the prefix SID is the SID to an SR node.
Prefix	Prefix information.
SID sub-TLV	Prefix SID sub-TLV length.
Flags	Flag carried in the prefix SID sub-TLV: · NP —No-PHP flag. The penultimate node cannot pop the prefix SID. · E—Explicit null flag. The upstream neighbor must replace the SID with an explicit null flag before forwarding the packets. · V—Value/Index flag. The value of the prefix SID is an absolute value.
MTID	Multi-topology ID.
Algo rithm	Prefix related algorithm.
SID index	Index value of the prefix SID
Local block TLV	SRLB TLV.
Length	TLV length in bytes.
SRLB base	Minimum label value in the SRLB range.
SRLB range	Number of labels in the SRLB range.
LAN adj sub-TLV	LAN adjacency SID advertisement sub-TLV: · Length—Sub-TLV length in bytes. · Flags—Flag information: ¡ B—Backup flag. If this bit is set, the adjacency SID is used to protect other nodes. ¡ V—Value/index flag. This field displays V if this bit is set, which indicates that the adjacency SID carries the label value. ¡ L—Local/global flag. If this bit is set, the value/index in the adjacency SID has local significance. ¡ G—Group flag. If this bit is set, The adjacency SID represents an adjacency group. ¡ P—Persistent flag. If this bit is set, the ADJ-SID is valid permanently. · MTID—Multi-topology ID. · Weight—Weight. · Neighbor ID—Router ID of the neighbor. · Label—Label value.

‌

display ospf nexthop

Use display ospf nexthop to display OSPF next hop information.

Syntax

display ospf [ process-id ] nexthop

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

process-id: Specifies an OSPF process by its ID in the range of 1 to 65535. If you do not specify this argument, the command displays next hop information for all OSPF processes.

Examples

# Display OSPF next hop information. ‌

<Sysname> display ospf nexthop

OSPF Process 1 with Router ID 1.1.1.2

Neighbor Nexthop Information

NbrID Nexthop Interface RefCount Status

192.168.12.1 0.0.0.0 Vlan10 4 Valid

192.168.12.2 192.168.12.2 Vlan10 3 Valid

192.168.12.1 0.0.0.0 Loop100 1 Valid

Table 22 Command output

Field	Description
NbrID	Neighbor router ID.
Nexthop	Next hop address.
Interface	Output interface.
RefCount	Reference count (routes that use the next hop).
Status	Next hop status: · Valid. · Invalid. · Valid-SR—The next hop type is SR tunnel that has taken effect. · Invalid-SR—The next hop type is SR tunnel that has not taken effect.

‌

display ospf peer

Use display ospf peer to display information about OSPF neighbors.

Syntax

display ospf [ process-id ] peer [ hello | verbose ] [ interface-type interface-number ] [ [ neighbor-id ] [ resolve-hostname ] | hostname host-name ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

process-id: Specifies an OSPF process by ID in the range of 1 to 65535. If you do not specify this argument, the command displays OSPF neighbor information for all OSPF processes.

hello: Displays information about the hello packets sent to and received from neighbor routers. In scenarios where hello packets are sent in multicast, the command displays information for only the hello packets received from neighbor routers.

verbose: Displays detailed neighbor information. If you do not specify this keyword, the command displays brief OSPF neighbor information.

interface-type interface-number: Specifies an interface by its type and number. If you do not specify this argument, the command displays neighbor information for all interfaces.

neighbor-id: Specifies a neighbor router ID. If you do not specify this argument, the command displays all neighbor information.

resolve-hostname: Resolves the host names of the neighbor routers. If you do not specify this keyword, the command cannot resolve the host names of the neighbor routers.

hostname host-name: Specifies a neighbor router by its host name, a case-sensitive string of 1 to 255 characters. If you do not specify this option, the command displays information for all neighbors.

Examples

# Display detailed OSPF neighbor information. ‌

<Sysname> display ospf peer verbose

OSPF Process 1 with Router ID 1.1.1.1

Neighbors

Area 0.0.0.0 interface 1.1.1.1(Vlan-interface100)'s neighbors

Router ID: 1.1.1.2 Address: 1.1.1.2 GR State: Normal

State: Full Mode: Nbr is master Priority: 1

DR: 1.1.1.2 BDR: 1.1.1.1 MTU: 0

Options is 0x02 (-|-|-|-|-|-|E|-)

Dead timer due in 33 sec

Neighbor is up for 02:03:35

Authentication Sequence: [ 0 ]

Neighbor state change count: 6

BFD status: Disabled

Adjacency SID: 24253

Last Neighbor Down Event:

Router ID: 22.22.22.22

Local Address: 11.11.11.11

Remote Address: 22.22.22.22

Time: Apr 9 03:18:19 2014

Reason: Ospf_ifachange

# Display detailed OSPF neighbor information and resolve the host names of the neighbor routers. ‌

<Sysname> display ospf peer verbose resolve-hostname

Area 0.0.0.1 interface 1.1.1.2(Vlan-interface100)'s neighbors

Router ID: 3.3.3.3 Address: 13.1.1.2 GR State: Normal

Hostname: RouterA

State: Full Mode: Nbr is slave Priority: 1

DR: 13.1.1.2 BDR: 13.1.1.1 MTU: 0

Options is 0x42 (-|O|-|-|-|-|E|-)

Dead timer due in 31 sec

Neighbor is up for 00:04:42

Authentication sequence: [ 0 ]

Neighbor state change count: 5

BFD status: Disabled

Adjacency SID: 24253

Last Neighbor Down Event:

Router ID: 3.3.3.3

Local Address: 13.1.1.1

Remote Address: 13.1.1.2

Time: Jun 15 16:13:29 2016

Reason: Reset ospf command was performed

Table 23 Command output

Field	Description
Area areaID interface IPAddress(InterfaceName)'s neighbors	Neighbor information for the interface in the specified area: · areaID—Area to which the neighbor belongs. · IPAddress—Interface IP address. · InterfaceName—Interface name.
Router ID	Neighbor router ID.
Address	Neighbor router address.
GR State	‌ GR state: · Normal. · Restarter. · Complete. · Helper.
Hostname	Host name of the neighbor router.
State	Neighbor state: · Down—Initial state of a neighbor conversation. · Init—The router has received a Hello packet from the neighbor. However, the router has not established bidirectional communication with the neighbor. The router did not appear in the neighbor's hello packet. · Attempt—Available only in an NBMA network. In this state, the OSPF router has not received any information from a neighbor for a period. The router can send Hello packets at a longer interval to keep the neighbor relationship. · 2-Way—Communication between the two routers is bidirectional. The local router appears in the neighbor's Hello packet. · Exstart—The goal of this state is to decide which router is the master, and to decide upon the initial Database Description (DD) sequence number. · Exchange—The router is sending DD packets to the neighbor, describing its entire link-state database. · Loading—The router sends LSRs packets to the neighbor, requesting more recent LSAs. · Full—The neighboring routers are fully adjacent.
Mode	Neighbor mode for LSDB synchronization.
Priority	Neighboring router priority.
DR	DR on the interface's network segment.
BDR	BDR on the interface's network segment.
MTU	Interface MTU.
Options	LSA options: · O—Opaque LSA advertisement capability. · E—AS External LSA reception capability. · EA—External extended LSA reception capability. · DC—On-demand link support. · N/P—N indicates support for NSSA external LSAs. P indicates the capability of an NSSA ABR to translate Type-7 LSAs into Type-5 LSAs.
Dead timer due in 33 sec	This dead timer will expire in 33 seconds.
Neighbor is up for 02:03:35	The neighbor has been up for 02:03:35.
Authentication Sequence	Authentication sequence number.
Neighbor state change count	Count of neighbor state changes.
BFD status	‌ BFD status: · Disabled. · Enabled (Control mode). · Enabled (Echo mode).
Adjacency SID	SID advertised by the adjacency path.
Last Neighbor Down Event	The most recent neighbor down event.
Time	Time when the neighbor went down, in MM DD hh:mm:ss YYYY format. · MM—Represents the month. · DD—Represents the day. · hh—Represents the hours. · mm—Represents the minutes. · ss—Represents the seconds. · YYYY—Represents the year.
Reason	Reason for the neighbor down event: · Ospf_resetconnect—The neighbor relationship was down due to memory insufficiency. · Ospf Interface Parameters Changed—The interface settings were changed. · VLINK Interface Parameters Changed—The virtual link settings were changed. · SHAMLINK Interface Parameters Changed—The sham link settings were changed. · Reset ospf command was performed—The reset ospf process command was executed. · Undo ospf command was performed—The undo ospf command was executed. · Undo area command was performed—The undo area command was executed. · Undo network—The undo network command was executed. · Silent Interface—The silent interface command was executed. · Ospf_iflchange—The logical attribute of the interface was changed. · Ospf_ifachange—The physical attribute of the interface was changed. · Ospf_ifvchange—The virtual link attribute of the interface was changed. · Vlink down—The virtual link went down. · Shamlink down—The sham link went down. · DeadInterval timer expired—The dead timer expired. · Configuring stub area—The stub area settings were changed. · Configuring nssa area—The NSSA area settings were changed. · Area Authentication-mode changed—The area authentication mode was changed. · Opaque-Capability changed—The Opaque capability was changed. · Too many retransmissions—Excessive retransmissions. · Link-local-Signaling Capability changed—The LLS capability was changed. · Out-Of-Band Resynchronazition Capability changed—The OOB capability was changed. · Graceful-Restart Capability changed—The GR capability was changed. · BFD session down—The BFD session associated with OSPF went down. · Database-filter or referenced ACL changed—The LSA filter settings on the specified interface were changed or the ACL used by the LSA filter was changed. · shutdown—The shutdown process command is executed.

‌

# Display brief OSPF neighbor information. ‌

<Sysname> display ospf peer

OSPF Process 1 with Router ID 1.1.1.1

Neighbor Brief Information

Area: 0.0.0.0

Router ID Address Pri Dead-Time State Interface

1.1.1.2 1.1.1.2 1 40 Full/DR Vlan10

Sham link: 11.11.11.11 -> 22.22.22.22

Router ID Address Pri Dead-Time State

22.22.22.22 22.22.22.22 1 36 Full

# Display brief OSPF neighbor information and resolve the host names of the neighbor routers. ‌

<Sysname> display ospf peer resolve-hostname

OSPF Process 1 with Router ID 1.1.1.1

Neighbor Brief Information

Area: 0.0.0.0

Router ID Address Pri Dead-Time State Interface

RouterA 1.1.1.2 1 34 Full/DR Vlan10

Sham link: 11.11.11.11 -> 22.22.22.22

Router ID Address Pri Dead-Time State

22.22.22.22 22.22.22.22 1 36 Full

Table 24 Command output

Field	Description
Area	Neighbor area.
Router ID	ID or host name of the neighbor router.
Address	Neighbor interface address.
Pri	Neighboring router priority.
Dead-Time	Dead interval remained.
Interface	Interface connected to the neighbor.
State	Neighbor state: Down, Init, Attempt, 2-Way, Exstart, Exchange, Loading, or Full.
Sham link 11.11.11.11 -> 22.22.22.22	Sham link from 11.11.11.11 to 22.22.22.22.

‌

# Display information about the hello packets sent to and received from neighbor routers. ‌

<Sysname> display ospf peer hello

OSPF Process 1 with Router ID 1.1.1.1

Neighbors

Area 0.0.0.0 interface 1.1.1.1(Vlan-interface10)'s neighbors

Router ID: 1.1.1.2 Address: 1.1.1.2

First 4 hello packets received:

2018-01-06 09:12:10:121

2018-01-06 09:12:20:121

2018-01-06 09:12:30:121

2018-01-06 09:12:40:121

Last 4 hello packets received:

2018-01-06 11:15:10:121

2018-01-06 11:15:20:121

2018-01-06 11:15:30:121

2018-01-06 11:15:40:121

First 4 hello packets sent:

2018-01-06 09:12:12:121, failed, errno:132

2018-01-06 09:12:22:121, succeeded

2018-01-06 09:12:32:121, succeeded

2018-01-06 09:12:42:121, succeeded

Last 4 hello packets sent:

2018-01-06 11:15:12:121, succeeded

2018-01-06 11:15:22:121, succeeded

2018-01-06 11:15:32:121, failed, errno:132

2018-01-06 11:15:42:121, failed, errno:132

Table 25 Command output

Field	Description
Router ID	Router ID of the neighbor.
Address	IP address of the neighbor interface.
First 4 hello packets received	Time for receiving the first four hello packets from neighbors.
Last 4 hello packets received	Time for receiving the last four hello packets from neighbors.
First 4 hello packets sent	Time and result (succeeded or failed) for sending the first four hello packets to neighbors. For a packet failed to be sent, an error code is displayed in the errno field. Error codes and corresponding failure reasons are as follows: · 4—EINTR. Interrupted system call. · 9—EBADF. Bad file descriptor. · 11—EAGAIN. Resource temporarily unavailable. · 12—ENOMEM. Cannot allocate memory. · 32—EPIPE. Broken pipe. · 88—ENOTSOCK. Socket operation on non-socket. · 90—EMSGSIZE. Message too long. · 95—EOPNOTSUPP. Operation not supported. · 104—ECONNRESET. Connection reset by peer. · 107—ENOTCONN. Transport endpoint is not connected. · 113—EHOSTUNREACH. No route to host. · 132—ENOBUFS. No buffer space available. This field is not displayed in scenarios where hello packets are sent in multicast.
Last 4 hello packets sent	Time and result (succeeded or failed) for sending the last four hello packets to neighbors when the command is executed. For a packet failed to be sent, an error code is displayed in the errno field. Error codes and corresponding failure reasons are as follows: · 4—EINTR. Interrupted system call. · 9—EBADF. Bad file descriptor. · 11—EAGAIN. Resource temporarily unavailable. · 12—ENOMEM. Cannot allocate memory. · 32—EPIPE. Broken pipe. · 88—ENOTSOCK. Socket operation on non-socket. · 90—EMSGSIZE. Message too long. · 95—EOPNOTSUPP. Operation not supported. · 104—ECONNRESET. Connection reset by peer. · 107—ENOTCONN. Transport endpoint is not connected. · 113—EHOSTUNREACH. No route to host. · 132—ENOBUFS. No buffer space available. This field is not displayed in scenarios where hello packets are sent in multicast.

‌

display ospf peer statistics

Use display ospf peer statistics to display OSPF neighbor statistics.

Syntax

display ospf [ process-id ] peer statistics

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

process-id: Specifies an OSPF process by its ID in the range of 1 to 65535. If you do not specify this argument, the command displays OSPF neighbor statistics for all OSPF processes.

Examples

# Display OSPF neighbor statistics.

<Sysname> display ospf peer statistics

OSPF Process 1 with Router ID 10.3.1.1

Neighbor Statistics

Area ID Down Attempt Init 2-Way ExStart Exchange Loading Full Total

0.0.0.0 0 0 0 0 0 0 0 1 1

0.0.0.2 0 0 0 0 0 0 0 1 1

Total 0 0 0 0 0 0 0 2 2

Sham links' neighbors (Total: 1):

Down: 0, Init: 0, 2-Way: 0, ExStart: 0, Exchange: 0, Loading: 0, Full: 1

Table 26 Command output

Field	Description
Area ID	The state statistics for all the routers in the area to which the router belongs is displayed.
Down	Number of neighboring routers in Down state in the same area.
Attempt	Number of neighboring routers in Attempt state in the same area.
Init	Number of neighboring routers in Init state in the same area.
2-Way	Number of neighboring routers in 2-Way state in the same area.
ExStart	Number of neighboring routers in ExStart state in the same area.
Exchange	Number of neighboring routers in Exchange state in the same area.
Loading	Number of neighboring routers in Loading state in the same area.
Full	Number of neighboring routers in Full state in the same area.
Total	Total number of neighbors in the same state: Down, Attempt, Init, 2-Way, ExStart, Exchange, Loading, or Full.
Sham links' neighbors	Statistics about sham links' neighbors.

‌

display ospf request-queue

Use display ospf request-queue to display OSPF request queue information.

Syntax

display ospf [ process-id ] request-queue [ interface-type interface-number ] [ neighbor-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

process-id: Specifies an OSPF process by its ID in the range of 1 to 65535. If you do not specify this argument, the command displays the OSPF request queue information for all OSPF processes.

interface-type interface-number: Specifies an interface by its type and number. If you do not specify this argument, the command displays the OSPF request queue information for all interfaces.

neighbor-id: Specifies a neighbor's router ID. If you do not specify this argument, the command displays the OSPF request queue information for all OSPF neighbors.

Examples

# Display OSPF request queue information.

<Sysname> display ospf request-queue

OSPF Process 100 with Router ID 192.168.1.59

Link State Request List

The Router's Neighbor is Router ID 2.2.2.2 Address 10.1.1.2

Interface 10.1.1.1 Area 0.0.0.0

Request list:

Type LinkState ID AdvRouter Sequence Age

Router 2.2.2.2 1.1.1.1 80000004 1

Network 192.168.0.1 1.1.1.1 80000003 1

Sum-Net 192.168.1.0 1.1.1.1 80000002 2

Table 27 Command output

Field	Description
The Router's Neighbor is Router ID	Neighbor router ID.
Address	Neighbor interface IP address.
Interface	Local interface IP address.
Area	Area ID.
Retransmit list	Request list information.
Type	LSA type.
LinkState ID	Link state ID.
AdvRouter	Advertising router.
Sequence	LSA sequence number.
Age	LSA age.

‌

display ospf retrans-queue

Use display ospf retrans-queue to display retransmission queue information.

Syntax

display ospf [ process-id ] retrans-queue [ interface-type interface-number ] [ neighbor-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

process-id: Specifies an OSPF process by its ID in the range of 1 to 65535. If you do not specify this argument, the command displays retransmission queue information for all OSPF processes.

interface-type interface-number: Specifies an interface by its type and number. If you do not specify this argument, the command displays retransmission queue information for all interfaces.

neighbor-id: Specifies a neighbor's router ID. If you do not specify this argument, the command displays retransmission queue information for all neighbors.

Examples

# Display OSPF retransmission queue information.

<Sysname> display ospf retrans-queue

OSPF Process 100 with Router ID 192.168.1.59

Link State Retransmission List

The Router's Neighbor is Router ID 2.2.2.2 Address 10.1.1.2

Interface 10.1.1.1 Area 0.0.0.0

Retransmit list:

Type LinkState ID AdvRouter Sequence Age

Router 2.2.2.2 2.2.2.2 80000004 1

Network 12.18.0.1 2.2.2.2 80000003 1

Sum-Net 12.18.1.0 2.2.2.2 80000002 2

Table 28 Command output

Field	Description
The Router's Neighbor is Router ID	Neighbor router ID.
Address	Neighbor interface IP address.
Interface	Interface address of the router.
Area	Area ID.
Retrans List	Retransmission list.
Type	LSA type.
LinkState ID	Link state ID.
AdvRouter	Advertising router.
Sequence	LSA sequence number.
Age	LSA age.

‌

display ospf routing

Use display ospf routing to display OSPF routing information.

Syntax

display ospf [ process-id ] routing [ ip-address { mask-length | mask } ] [ interface interface-type interface-number ] [ nexthop nexthop-address ] [ verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

process-id: Specifies an OSPF process by its ID in the range of 1 to 65535. If you do not specify this argument, the command displays the routing information for all OSPF processes.

ip-address: Specifies a destination IP address.

mask-length: Specifies mask length in the range of 0 to 32.

mask: Specifies the mask in dotted decimal notation.

interface interface-type interface-number: Displays routes passing the specified output interface. If you do not specify this option, the command displays OSPF routing information for all interfaces.

nexthop nexthop-address: Displays routes passing the specified next hop. If you do not specify this option, the command displays all OSPF routing information.

verbose: Displays detailed OSPF routing information. If you do not specify this keyword, the command displays brief OSPF routing information.

Examples

# Display OSPF routing information.

<Sysname> display ospf routing

OSPF Process 1 with Router ID 192.168.1.2

Routing Table

Routing for network

Destination Cost Type NextHop AdvRouter Area

192.168.1.0/24 1562 Stub 192.168.1.2 192.168.1.2 0.0.0.0

172.16.0.0/16 1563 Inter 192.168.1.1 192.168.1.1 0.0.0.0

Total nets: 2

Intra area: 1 Inter area: 1 ASE: 0 NSSA: 0

Table 29 Command output

Field	Description
Destination	Destination network.
Cost	Cost to destination.
Type	Route type: transit, stub, inter, Type-1, and Type-2.
NextHop	Next hop address.
AdvRouter	Advertising router.
Area	Area ID.
Total nets	Total networks.
Intra area	Total intra-area routes.
Inter area	Total inter-area routes.
ASE	Total ASE routes.
NSSA	Total NSSA routes.

‌

# Display detailed OSPF routing information. ‌

<Sysname> display ospf routing verbose

OSPF Process 2 with Router ID 192.168.1.112

Routing Table

Routing for network

Destination: 192.168.1.0/24

Priority: Low Type: Stub

AdvRouter: 192.168.1.2 Area: 0.0.0.0

SubProtoID: 0x1 Preference: 10

NextHop: 192.168.1.2 BkNextHop: N/A

IfType: Broadcast BkIfType: N/A

Interface: Vlan100 BkInterface: N/A

NibID: 0x1300000c Status: Normal

Cost: 1562

InLabel: 4294967295 Tunnel type: -

OutLabel: 4294967295 OutLabel flag: -

BkOutLabel: 4294967295 BkOutLabel flag: -

Destination: 172.16.0.0/16

Priority: Low Type: Inter

AdvRouter: 192.168.1.1 Area: 0.0.0.0

SubProtoID: 0x1 Preference: 10

NextHop: 192.168.1.1 BkNextHop: N/A

IfType: Broadcast BkIfType: N/A

Interface: Vlan101 BkInterface: N/A

NibID: 0x1300000c Status: Normal

Cost: 1563

InLabel: 4294967295 Tunnel type: -

OutLabel: 4294967295 OutLabel flag: -

BkOutLabel: 4294967295 BkOutLabel flag: -

Destination: 91.1.0.0/16

Priority: Low Type: Type2

AdvRouter: 2.2.2.2 Tag: 0

SubProtoID: 0x8 Preference: 150

NextHop: 21.41.0.2 BkNextHop: N/A

IfType: PTP BkIfType: N/A

Interface: Vlan300 BkInterface: N/A

NibID: 0x13000003 Status: Normal

Cost: 1 ECMP group: 0x1300001a

InLabel: 4294967295 Tunnel type: -

OutLabel: 4294967295 OutLabel flag: -

BkOutLabel: 4294967295 BkOutLabel flag: -

Destination: 91.1.0.0/16

Priority: Low Type: Type2

AdvRouter: 3.3.3.3 Tag: 0

SubProtoID: 0x8 Preference: 150

NextHop: 31.41.0.3 BkNextHop: N/A

IfType: PTP BkIfType: N/A

Interface: Vlan200 BkInterface: N/A

NibID: 0x13000005 Status: Normal

Cost: 1 ECMP group: 0x1300001a

InLabel: 4294967295 Tunnel type: -

OutLabel: 4294967295 OutLabel flag: -

BkOutLabel: 4294967295 BkOutLabel flag: -

Total nets: 4

Intra area: 2 Inter area: 0 ASE: 2 NSSA: 0

Table 30 Command output

Field	Description
Priority	Prefix priority: critical, high, medium, and low.
Type	Route type: Transit, Stub, Inter, Type1, or Type2.
AdvRouter	Advertising router.
Area	Area ID.
SubProtoID	Sub protocol ID.
Preference	OSPF route preference.
NextHop	Primary next hop IP address.
BkNextHop	Backup next hop IP address.
IfType	Type of the network to which the primary next hop belongs.
BkIfType	Type of the network to which the backup next hop belongs.
Interface	Output interface.
BkInterface	Backup output interface.
NibID	Next hop ID.
Status	Route status: · Local—The route is on the local end and is not sent to the route management module. · Invalid—The next hop is invalid. · Stale—The next hop is stale. · Normal—The route is available. · Delete—The route is deleted. · Host-Adv—The route is a host route. · Rely—The route is a recursive route.
Cost	Cost to destination.
ECMP group	ECMP route group ID. This field is displayed only when ECMP route groups exist.
InLabel	‌ Incoming label of the route. For invalid incoming labels, this field displays 4294967295.
Tunnel type	‌ Tunnel type. Only SR (which means SR tunnel) is supported in the current software version.
OutLabel	‌ Outgoing label of the route. For invalid outgoing labels, this field displays 4294967295.
OutLabel flag	‌ Outgoing label flag: · E—Explicit null flag. The upstream neighbor must replace the SID with an explicit null flag before forwarding the packets. · I—Implicit null flag. The upstream neighbor must replace the SID with an implicit null flag before forwarding the packets. This flag is not supported in the current software version. · N—Normal flag. · P—SR label preferred flag.
BkOutLabel	‌ Backup outgoing label of the route. For invalid backup outgoing labels, this field displays 4294967295.
BkOutLabel flag	‌ Backup outgoing label flag: · E—Explicit null flag. The upstream neighbor must replace the SID with an explicit null flag before forwarding the packets. · I—Implicit null flag. The upstream neighbor must replace the SID with an implicit null flag before forwarding the packets. · N—Normal flag. · P—SR label preferred flag.
LabelSrc	Label source: · SR—Assigned by an SR node. · SRMS—Assigned by the Segment Routing Mapping Server (SRMS).
DelayFlag	Microloop avoidance delay flag: · D—Microloop avoidance is configured. Route convergence is delayed. · N/A—Microloop avoidance is not configured or the microloop avoidance delay timer has expired. Route convergence is in progress.
MALsIndex	SR microloop avoidance label stack index.
MALabelStack	SR microloop avoidance label stack (from top to bottom).
Remote-LFA back Info	Remote LFA backup information.
PQPrefix	PQ node prefix.
PQAdvID	Router ID of the PQ node.
LsIndex	Label stack index.
LabelStack	Label stack.
TI-LFA backup info	TI-LFA backup information.
PNodePrefix	P node prefix.
QNodeAdvID	Router ID of the Q node.

‌

display ospf spf-tree

Use display ospf spf-tree to display SPF tree information.

Syntax

display ospf [ process-id ] [ area area-id ] spf-tree [ verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

process-id: Specifies an OSPF process by its ID in the range of 1 to 65535. If you do not specify a process, this command displays SPF tree information for all OSPF processes.

area area-id: Specifies an OSPF area by its ID. The area ID is an IP address or a decimal integer in the range of 0 to 4294967295 that is translated into the IP address format. If you do not specify an area, this command displays SPF tree information for all OSPF areas.

verbose: Displays detailed SPF tree information. If you do not specify this keyword, the command displays brief SPF tree information.

Examples

# Display brief SPF tree information for Area 0 in OSPF process 1.

<Sysname> display ospf 1 area 0 spf-tree

OSPF Process 1 with Router ID 100.0.0.4

Flags: S-Node is on SPF tree R-Node is directly reachable

I-Node or Link is init D-Node or Link is to be deleted

P-Neighbor is parent A-Node is in candidate list

C-Neighbor is child T-Node is tunnel destination

H-Nexthop changed N-Link is a new path

V-Link is involved G-Link is in change list

Area: 0.0.0.0 Shortest Path Tree

SpfNode Type Flag SpfLink Type Cost Flag

>192.168.119.130 Network S R

-->114.114.114.111 NET2RT 0 C

-->100.0.0.4 NET2RT 0 P

>114.114.114.111 Router S

-->192.168.119.130 RT2NET 65535 P

>100.0.0.4 Router S

-->192.168.119.130 RT2NET 10 C

Table 31 Command output

Field	Description
SpfNode	SPF node, represented by a router ID when the node type is Router, or the IP address of the DR when the node type is Network. Node flag: · I—The node is in initialization state. · A—The node is on the candidate list. · S—The node is on the SPF tree. · R—The node is directly connected to the root node. · D—The node is to be deleted. · T—The node is the tunnel destination. ‌
SpfLink	SPF link, representing the peer node. Link type: · RT2RT—Router to router. · NET2RT—Network to router. · RT2NET—Router to network. Link flag: · I—The link is in initialization state. · P—The peer is the parent node. · C—The peer is the child node. · D—The link is to be deleted. · H—The next hop is changed. · V—When the peer node is deleted or added, the peer node is not on the SPF tree or is deleted. · N—The link is newly added, and both end nodes are on the SPF tree. · G—The link is on the area change list.

Field

Description

SpfNode

SPF node, represented by a router ID when the node type is Router, or the IP address of the DR when the node type is Network.

Node flag:

· I—The node is in initialization state.

· A—The node is on the candidate list.

· S—The node is on the SPF tree.

· R—The node is directly connected to the root node.

· D—The node is to be deleted.

· T—The node is the tunnel destination. ‌

SpfLink

SPF link, representing the peer node.

Link type:

· RT2RT—Router to router.

· NET2RT—Network to router.

· RT2NET—Router to network.

Link flag:

· I—The link is in initialization state.

· P—The peer is the parent node.

· C—The peer is the child node.

· D—The link is to be deleted.

· H—The next hop is changed.

· V—When the peer node is deleted or added, the peer node is not on the SPF tree or is deleted.

· N—The link is newly added, and both end nodes are on the SPF tree.

· G—The link is on the area change list.

‌

# Display detailed SPF tree information for Area 0 in OSPF process 1. ‌

<Sysname> display ospf 1 area 0 spf-tree verbose

OSPF Process 1 with Router ID 100.0.0.4

Flags: S-Node is on SPF tree R-Node is directly reachable

I-Node or Link is init D-Node or Link is to be deleted

P-Neighbor is parent A-Node is in candidate list

C-Neighbor is child T-Node is tunnel destination

H-Nexthop changed N-Link is a new path

V-Link is involved G-Link is in change list

Area: 0.0.0.0 Shortest Path Tree

>LsId(192.168.119.130)

AdvId : 100.0.0.4 NodeType : Network

Mask : 255.255.255.0 SPFLinkCnt : 2

Distance : 10

VlinkData: 0.0.0.0 ParentLinkCnt: 1 NodeFlag: S R

NextHop : 1

192.168.119.130 Interface: Vlan100 Flag: -

BkNextHop: 1

0.0.0.0 Interface: Vlan100 Flag: -

-->LinkId(114.114.114.111)

AdvId : 100.0.0.4 LinkType : NET2RT

LsId : 192.168.119.130 LinkCost : 0 NextHopCnt: 1

LinkData: 0.0.0.0 LinkNewCost: 0 LinkFlag : C

-->LinkId(100.0.0.4)

AdvId : 100.0.0.4 LinkType : NET2RT

LsId : 192.168.119.130 LinkCost : 0 NextHopCnt: 1

LinkData: 0.0.0.0 LinkNewCost: 0 LinkFlag : P

Table 32 Command output

Field	Description
LsId	Link state ID.
AdvId	ID of the advertising router.
NodeType	Node type: · Network—Network node. · Router—Router node.
Mask	Network mask. Its value is 0 for a router node.
SPFLinkCnt	Number of SPF links.
Distance	Cost to the root node.
VlinkData	Destination address of virtual link packets.
ParentLinkCnt	Number of parent links.
NodeFlag	Node flag: · I—The node is in initialization state. · A—The node is on the candidate list. · S—The node is on the SPF tree. · R—The node is directly connected to the root node. · D—The node is to be deleted. ‌ · T—The node is the tunnel destination. ‌
NextHop	Next hop.
Interface	Output interface.
Flag	‌ Identifies the type of the next hop. SR means SR tunnel. For other types, this field displays a hyphen (-).
Remote-LFA	Remote LFA backup information.
RLFAAdvId	Router ID of the remote LFA backup next hop.
RLFAInterface	Output interface of the remote LFA backup next hop.
RLFANexthop	Remote LFA backup next hop information.
PQNode AdvID	Router ID of the PQ node.
PQNode prefix	PQ node prefix.
TI-LFA	TI-LFA information.
TiLfaAdvId	Advertised node router ID after TI-LFA is enabled.
TiLfaInterface	TI-LFA interface.
TiLfaNexthop	TI-LFA next hop address.
PNode AdvID	Router ID of the P node.
QNode AdvID	Router ID of the Q node.
PNode prefix	Prefix of the P node.
PNode SidIndex	SID index of the P node.
Protect	Traffic protection type: Link or Node.
Label stack	Label stack.
BkNextHop	Backup next hop.
LinkId	Link ID.
LinkType	Link type: · RT2RT—Router to router. · NET2RT—Network to router. · RT2NET—Router to network.
LinkCost	Link cost.
NextHopCnt	Number of next hops.
LinkData	Link data.
LinkNewCost	New link cost.
LinkFlag	Link flag: · I—The link is in initialization state. · P—The peer is the parent node. · C—The peer is the child node. · D—The link is to be deleted. · H—The next hop is changed. · V—When the peer node is deleted or added, the peer node is not on the SPF tree or is deleted. · N—The link is newly added, and both end nodes are on the SPF tree. · G—The link is on the area change list.

‌

display ospf statistics

Use display ospf statistics to display OSPF statistics.

Syntax

display ospf [ process-id ] statistics [ error | packet [ hello | interface-type interface-number ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

process-id: Specifies an OSPF process by its ID in the range of 1 to 65535. If you do not specify this argument, the command displays OSPF statistics for all OSPF processes.

error: Displays error statistics. If you do not specify this keyword, the command displays OSPF packet, LSA, and route statistics.

packet: Displays OSPF packet statistics.

hello: Displays statistics of the sent and received hello packets. If you do not specify this keyword, the command displays statistics of all types of sent and received packets.

interface-type interface-number: Specifies an interface by its type and number. If you do not specify this argument, the command displays statistics for all interfaces.

Examples

# Display OSPF statistics.

<Sysname> display ospf statistics

OSPF Process 1 with Router ID 2.2.2.2

Statistics

I/O statistics

Type Input Output

Hello 61 122

DB Description 2 3

Link-State Req 1 1

Link-State Update 3 3

Link-State Ack 3 2

LSAs originated by this router

Router : 4

Network : 0

Sum-Net : 0

Sum-Asbr: 0

External: 0

NSSA : 0

Opq-Link: 0

Opq-Area: 0

Opq-As : 0

LSAs originated: 4 LSAs received: 7

Routing table:

Intra area: 2 Inter area: 3 ASE/NSSA: 0

Table 33 Command output

Field	Description
I/O statistics	Statistics about input/output packets and LSAs.
Type	OSPF packet type.
Input	Packets received.
Output	Packets sent.
Hello	Hell packet.
DB Description	Database Description packet.
Link-State Req	Link-State Request packet.
Link-State Update	Link-State Update packet.
Link-State Ack	Link-State Acknowledge packet.
LSAs originated by this router	LSAs originated by this router.
Router	Number of Type-1 LSAs originated.
Network	Number of Type-2 LSAs originated.
Sum-Net	Number of Type-3 LSAs originated.
Sum-Asbr	Number of Type-4 LSAs originated.
External	Number of Type-5 LSAs originated.
NSSA	Number of Type-7 LSAs originated.
Opq-Link	Number of Type-9 LSAs originated.
Opq-Area	Number of Type-10 LSAs originated.
Opq-As	Number of Type-11 LSAs originated.
LSA originated	Number of LSAs originated.
LSA received	Number of LSAs received.
Routing table	Routing table information.
Intra area	Number of intra-area routes.
Inter area	Number of inter-area routes.
ASE/NSSA	Number of ASE/NSSA routes.

‌

# Display OSPF error statistics.

<Sysname> display ospf statistics error

OSPF Process 1 with Router ID 192.168.1.112

OSPF Packet Error Statistics

0 : Router ID confusion 0 : Bad packet

0 : Bad version 0 : Bad checksum

0 : Bad area ID 0 : Drop on unnumbered link

0 : Bad virtual link 0 : Bad authentication type

0 : Bad authentication key 0 : Packet too small

0 : Neighbor state low 0 : Transmit error

0 : Interface down 0 : Unknown neighbor

0 : HELLO: Netmask mismatch 0 : HELLO: Hello-time mismatch

0 : HELLO: Dead-time mismatch 0 : HELLO: Ebit option mismatch

0 : DD: MTU option mismatch 0 : DD: Unknown LSA type

0 : DD: Ebit option mismatch 0 : ACK: Bad ack

0 : ACK: Unknown LSA type 0 : REQ: Empty request

0 : REQ: Bad request 0 : UPD: LSA checksum bad

0 : UPD: Unknown LSA type 0 : UPD: Less recent LSA

Table 34 Command output

Field	Description
Router ID confusion	Packets with duplicate router ID.
Bad packet	Packets illegal.
Bad version	Packets with wrong version.
Bad checksum	Packets with wrong checksum.
Bad area ID	Packets with invalid area ID.
Drop on unnumbered link	Packets dropped on the unnumbered interface.
Bad virtual link	Packets on wrong virtual links.
Bad authentication type	Packets with invalid authentication type.
Bad authentication key	Packets with invalid authentication key.
Packet too small	Packets too small in length.
Neighbor state low	Packets received in low neighbor state.
Transmit error	Packets with error when being transmitted.
Interface down	Shutdown times of the interface.
Unknown neighbor	Packets received from unknown neighbors.
HELLO: Netmask mismatch	Hello packets with mismatched mask.
HELLO: Hello-time mismatch	Hello packets with mismatched hello timer.
HELLO: Dead-time mismatch	Hello packets with mismatched dead timer.
HELLO: Ebit option mismatch	Hello packets with mismatched E-bit in the option field.
DD: MTU option mismatch	DD packets with mismatched MTU.
DD: Unknown LSA type	DD packets with unknown LSA type.
DD: Ebit option mismatch	DD packets with mismatched E-bit in the option field.
ACK: Bad ack	Bad LSAck packets for LSU packets.
ACK: Unknown LSA type	LSAck packets with unknown LSA type.
REQ: Empty request	LSR packets with no request information.
REQ: Bad request	Bad LSR packets.
UPD: LSA checksum bad	LSU packets with wrong LSA checksum.
UPD: Unknown LSA type	LSU packets with unknown LSA type.
UPD: Less recent LSA	LSU packets without the most recent LSA.

‌

# Display OSPF packet statistics for all processes and interfaces. ‌

<Sysname> display ospf statistics packet

OSPF Process 100 with Router ID 192.168.1.59

Packet Statistics

Waiting to send packet count: 0

Hello DD LSR LSU ACK Total

Input : 489 6 2 44 40 581

Output: 492 8 2 45 40 587

Area: 0.0.0.1

Interface: 20.1.1.1 (Vlan-interface100)

DD LSR LSU ACK Total

Input : 0 0 0 0 0

Output: 0 0 0 0 0

Interface: 100.1.1.1 (Vlan-interface100)

DD LSR LSU ACK Total

Input : 3 1 22 16 42

Output: 2 1 19 20 42

Table 35 Command output

Field	Description
Waiting to send packet count	Number of packets waiting to be sent.
Total	Total number of packets.
Input	Number of received packets.
Output	Number of sent packets.
Area	Area ID.
Interface	Interface address and interface name.

‌

# Display statistics of the sent and received hello packets.

<Sysname> display ospf statistics packet hello

OSPF Process 1 with Router ID 1.1.1.1

Hello statistics

Total sent : 201

Total sent failed : 0

Sent after one and a half intervals : 0

Total received : 221

Total received dropped : 0

Received after one and a half intervals: 0

Table 36 Command output

Field	Description
Total sent	Total number of hello packets sent.
Total sent failed	Total number of hello packets that failed to be sent.
Sent after one and a half intervals	Total number of hello packets sent at intervals greater than 1.5 times the hello interval.
Total received	Total number of hello packets received.
Total received dropped	Total number of received hello packets that were dropped.
Received after one and a half intervals	Total number of hello packets received at intervals greater than 1.5 times the hello interval.

‌

Related commands

reset ospf statistics

display router id

Use display router id to display the global router ID.

Syntax

display router id

Views

Any view

Predefined user roles

network-admin

network-operator

Examples

# Display the global router ID.

<Sysname> display router id

Configured router ID is 1.1.1.1

fast-reroute

Use fast-reroute to configure OSPF FRR.

Use undo fast-reroute to restore the default.

Syntax

fast-reroute { lfa [ abr-only ] | route-policy route-policy-name }

undo fast-reroute

Default

OSPF FRR is disabled.

Views

OSPF view

Predefined user roles

network-admin

Parameters

lfa: Uses the LFA algorithm to calculate a backup next hop for all routes.

abr-only: Uses the next hop of the route to the ABR as the backup next hop.

route-policy route-policy-name: Uses a routing policy to designate a backup next hop. The route-policy-name argument is a case-sensitive string of 1 to 63 characters.

Usage guidelines

When both OSPF FRR and PIC are configured, OSPF FRR takes effect.

Do not use the fast-reroute lfa command together with the vlink-peer command.

Examples

# Enable FRR to calculate a backup next hop for all routes by using LFA algorithm in OSPF process 1.

<Sysname> system-view

[Sysname] ospf 1

[Sysname-ospf-1] fast-reroute lfa

hostname

Use hostname to enable the OSPF dynamic host name mapping feature.

Use undo hostname to disable the OSPF dynamic host name mapping feature.

Syntax

hostname [ host-name ]

undo hostname

Default

The OSPF dynamic host name mapping feature is disabled.

Views

OSPF view

Predefined user roles

network-admin

Parameters

host-name: Specifies the host name mapped to the router ID of the OSPF process, a case-sensitive string of 1 to 255 characters. If you do not specify this argument, the device name is mapped to the router ID of the OSPF process.

Usage guidelines

OSPF uses Type-10 LSAs and Type-11 LSAs to carry information about the dynamic host name attribute. Therefore, make sure the opaque LSA reception and advertisement capability is enabled.

Examples

# Enable the dynamic host name mapping feature for OSPF process 1, and specify the host name mapped to the router ID as red.

<Sysname> system-view

[Sysname] ospf 1

[Sysname-ospf-1] hostname red

Related commands

display ospf hostname-table

opaque-capability enable

network

Use network to enable OSPF on the interface attached to the specified network in the area.

Use undo network to disable OSPF for the interface attached to the specified network in the area.

Syntax

network ip-address wildcard-mask

undo network ip-address wildcard-mask

Default

OSPF is not enabled for any interface.

Views

OSPF area view

Predefined user roles

network-admin

Parameters

ip-address: Specifies the IP address of a network.

wildcard-mask: Specifies the wildcard mask of the IP address. For example, the wildcard mask of mask 255.0.0.0 is 0.255.255.255.

Usage guidelines

This command enables OSPF on the interface attached to the specified network. The interface's primary IP address must be in the specified network. If only the interface's secondary IP address is on the network, the interface cannot run OSPF.

Examples

# Specify the interface whose primary IP address is on network 131.108.20.0/24 to run OSPF in Area 2.

<Sysname> system-view

[Sysname] ospf 100

[Sysname-ospf-100] area 2

[Sysname-ospf-100-area-0.0.0.2] network 131.108.20.0 0.0.0.255

Related commands

ospf

opaque-capability enable

Use opaque-capability enable to enable opaque LSA advertisement and reception.

Use undo opaque-capability to disable opaque LSA advertisement and reception.

Syntax

opaque-capability enable

undo opaque-capability

Default

The feature is enabled.

Views

OSPF view

Predefined user roles

network-admin

Usage guidelines

After the opaque LSA advertisement and reception capability is enabled, OSPF can receive and advertise Type-9, Type-10, and Type-11 opaque LSAs.

Examples

# Disable opaque LSA advertisement and reception.

<Sysname> system-view

[Sysname] ospf 100

[Sysname-ospf-100] undo opaque-capability

ospf

Use ospf to enable OSPF and enter OSPF view.

Use undo ospf to disable OSPF.

Syntax

ospf [ process-id | router-id { auto-select | router-id } ] *

undo ospf [ process-id ] [ router-id ]

Default

OSPF is disabled.

Views

System view

Predefined user roles

network-admin

Parameters

process-id: Specifies an OSPF process by its ID in the range of 1 to 65535.

router-id: Specifies an OSPF router ID. If you do not specify an OSPF router ID, the global router ID is used.

auto-select: Automatically obtains an OSPF router ID.

router-id: Manually specifies an OSPF router ID in dotted decimal notation. The value range is from 0.0.0.1 to 255.255.255.255.

Usage guidelines

Enable an OSPF process before performing other tasks.

You can enable multiple OSPF processes on a router and specify different router IDs for them.

If you specify the auto-select keyword, the OSPF process obtains a router ID in the following ways:

· During the startup of the OSPF process, the primary IPv4 address of the first interface that runs the process is specified as the router ID.

· During the reboot of the router, the primary IPv4 address of the first interface that runs the process is specified as the router ID.

· During the restart of the OSPF process, the highest primary IPv4 address of the loopback interface that runs the process is specified as the router ID. If no loopback address is available, the highest primary IPv4 address of the interface that runs the process is used, regardless of the interface state (up or down).

If you do not specify the router-id keyword, the undo ospf command shuts down an OSPF process. If you specify the router-id keyword, the undo ospf command specifies the global router ID as the router ID. The setting takes effect after the OSPF process restarts.

For correct OSPF neighbor relationship establishment, do not bind an OSPF-enabled VLAN interface to an OpenFlow instance.

After you create multiple non-default vSystems on the device, enabling OSPF in these vSystems might cause memory insufficiency. To resolve this issue, specify the lite keyword when you use this command to enable OSPF in a non-default vSystem. Compared with traditional processes, lightweight processes use less memory resources.

To configure a traditional OSPF process as a lightweight process, perform the following tasks:

1. Use the undo ospf command to disable the process.

2. Use the ospf command with the lite keyword specified to enable the process.

When you use this command to enter the view of an existing lightweight OSPF process, you do not need to specify the lite keyword.

Examples

# Enable OSPF process 100 and specify router ID 10.10.10.1.

<Sysname> system-view

[Sysname] ospf 100 router-id 10.10.10.1

[Sysname-ospf-100]

ospf area

Use ospf area to enable OSPF on an interface.

Use undo ospf area to disable OSPF on an interface.

Syntax

ospf process-id area area-id [ exclude-subip ]

undo ospf process-id area [ exclude-subip ]

Default

OSPF is not enabled on an interface.

Views

Interface view

Predefined user roles

network-admin

Parameters

process-id: Specifies an OSPF process by its ID in the range of 1 to 65535.

area-id: Specifies an area by its ID, an IP address or a decimal integer in the range of 0 to 4294967295 that is translated into the IP address format.

exclude-subip: Excludes secondary IP addresses. If you do not specify this keyword, the command enables OSPF also on secondary IP addresses.

Usage guidelines

The ospf area command has a higher priority than the network command.

If the specified process and area do not exist, the command creates the process and area. Disabling an OSPF process on an interface does not delete the OSPF process or the area.

Examples

# Enable OSPF process 1 on VLAN-interface 10 that is in Area 2 and exclude secondary IP addresses. ‌

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] ospf 1 area 2 exclude-subip

Related commands

network

reset ospf event-log

Use reset ospf event-log to clear OSPF log information.

Syntax

reset ospf [ process-id ] event-log [ lsa-flush | peer | spf ]

Views

User view

Predefined user roles

network-admin

Parameters

process-id: Specifies an OSPF process by its ID in the range of 1 to 65535. If you do not specify this argument, the command clears OSPF log information for all OSPF processes.

lsa-flush: Clears LSA aging log information.

peer: Clears neighbor state change log information.

spf: Clears route calculation log information.

Usage guidelines

If you do not specify a log type, this command clears all log information.

Examples

# Clear OSPF route calculation log information for all OSPF processes.

<Sysname> reset ospf event-log spf

Related commands

display ospf event-log

reset ospf event-log hello

Use reset ospf event-log hello to clear OSPF log information about received or sent hello packets.

Syntax

reset ospf [ process-id ] event-log hello { received [ abnormal | dropped ] | sent [ abnormal | failed ] }

Views

User view

Predefined user roles

network-admin

Parameters

process-id: Specifies an OSPF process by its ID in the range of 1 to 65535. If you do not specify this argument, the command clears OSPF log information for all processes.

received: Specifies log information for received hello packets.

sent: Specifies log information for sent hello packets.

abnormal: Specifies log information for abnormal hello packets received or sent at intervals greater than or equal to 1.5 times the hello interval.

dropped: Specifies log information for received hello packets that were dropped.

failed: Specifies log information for hello packets that failed to be sent.

Examples

# Clear sent hello packet log information for all OSPF processes.

<Sysname> reset ospf event-log hello sent

Related commands

display ospf event-log hello

reset ospf process

Use reset ospf process to restart all OSPF processes or a specified process.

Syntax

reset ospf [ process-id ] process [ graceful-restart ]

Views

User view

Predefined user roles

network-admin

Parameters

process-id: Specifies an OSPF process by its ID in the range of 1 to 65535. If you do not specify a process, this command restarts all OSPF processes.

graceful-restart: Resets the OSPF process by using GR.

Usage guidelines

The reset ospf process command performs the following actions:

· Clears all invalid LSAs without waiting for their timeouts.

· Makes a newly configured router ID take effect.

· Starts a new DR/BDR election.

· Keeps previous OSPF configurations.

The system prompts you to select whether to restart OSPF process upon execution of this command.

Examples

# Restart all OSPF processes.

<Sysname> reset ospf process

Reset OSPF process? [Y/N]:y

reset ospf statistics

Use reset ospf statistics to clear OSPF statistics.

Syntax

reset ospf [ process-id ] statistics

Views

User view

Predefined user roles

network-admin

Parameters

process-id: Clears the statistics for an OSPF process specified by its ID in the range of 1 to 65535.

Examples

# Clear OSPF statistics for all processes.

<Sysname> reset ospf statistics

Related commands

display ospf statistics

router id

Use router id to configure a global router ID.

Use undo router id to restore the default.

Syntax

router id router-id

undo router id

Default

No global router ID is configured.

Views

System view

Predefined user roles

network-admin

Parameters

router-id: Specifies the router ID, in the format of an IPv4 address.

Usage guidelines

OSPF uses a router ID to identify a device. If no router ID is specified, the global router ID is used.

If no global router ID is configured, the highest loopback interface IP address is used as the router ID. If no loopback interface IP address is available, the highest physical interface IP address is used, regardless of the interface status (up or down).

During an active/standby process switchover, the new active process checks whether the previously backed up router ID is valid. If not, the process selects a new router ID.

A new router ID is selected only when the interface IP address used as the router ID is removed or changed. Other events will not trigger a router ID re-selection. For example, router ID re-selection is not triggered in the following situations:

· The interface goes down.

· You change the router ID to the address of a loopback interface after a physical interface address is selected as the router ID.

· A higher interface IP address is configured as the router ID.

After a router ID is changed, you must use the reset command to enable it.

Examples

# Configure a global router ID as 1.1.1.1.

<Sysname> system-view

[Sysname] router id 1.1.1.1

Field	Description
OSPF Process 1 with Router ID 192.168.1.2	OSPF process ID and OSPF router ID.
RouterID	Router ID.
Router type	Router type: · ABR. · ASBR. · NSSA. · Null.
Process state	OSPF process state. If you shut down the process by using the shutdown process command, this field displays Admin-down. If the process is not shut down, this field is not displayed.
Route tag	Tag of redistributed routes.
Multi-VPN-Instance is not enabled	The OSPF process does not support multi-VPN-instance.
Ext-community type	OSPF extended community attribute type codes: · Domain ID—Domain ID code. · Route Type—Route type code. · Router ID—Router ID code.
Domain ID	OSPF domain ID (primary ID).
Opaque capable	Opaque LSA advertisement and reception capability is enabled.
Isolation	Whether OSPF isolation is enabled.
Originating router-LSAs with maximum metric	The maximum cost value for router LSAs (excluding stub links) is used.
Condition	Status of the stub router: · Always. · On startup while BGP is converging. · On startup while BGP is converging for xxx seconds, where xxx is specified by the user. · On startup for xxx seconds, where xxx is specified by the user.
State	Whether the stub router is active.
ECMP group is enabled	ECMP route grouping is enabled. This field is displayed only when ECMP route grouping is enabled.
SPF-schedule-interval	Interval for SPF calculations. If the SPF calculation interval is fixed, this field also displays in milliseconds enclosed with brackets.
LSA generation interval	LSA generation interval.
LSA arrival interval	LSA arrival interval.
Transmit pacing	LSU packet transmit rate of the interface: · Interval—LSU transmit interval of the interface. · Count—Maximum number of LSU packets sent at each interval.
Default ASE parameters	Default ASE parameters: Metric, Tag, and Type.
Route preference	Internal route preference.
ASE route preference	External route preference.
SPF computation count	SPF computation count of the OSPF process.
RFC1583 compatible	Compatible with RFC 1583.
Fast-reroute	FRR type: · LFA—LFA is enabled. · remote-LFA Disabled—Remote LFA is not enabled. · remote-LFA Enabled—Remote LFA is enabled. · TI-LFA—TI-LFA is enabled.
Node-Protecting Preference	Priority for node-protection backup path selection policy.
Lowest-cost Preference	Priority for lowest-cost backup path selection policy.
Maximum-cost	Maximum cost from the source node of a protected link to a PQ node.
Microloop-avoidance	Microloop avoidance status: Disabled or Enabled.
Microloop-avoidance RIB-update-delay	Microloop avoidance delay timer in milliseconds.
Graceful restart interval	‌ GR interval.
SNMP trap rate limit interval	SNMP notification sending interval.
Count	Number of sent SNMP notifications.
ExChange/Loading neighbors	Neighbors in ExChange/Loading state.
Description	Description of the process or area. This field is not displayed if no description is configured.
Full neighbors	Neighbors in Full state.
Calculation trigger type	Route calculation trigger type: · Full—Calculation of all routes is triggered. · Area topology change—Topology change in an area. · Intra router change—Incremental intra-area route change. · ASBR change—Incremental ASBR route change. · 7to5 translator—Type-7-to-Type-5 LSA translator role change. · Full IP prefix—Calculation of all IP prefixes is triggered. · Full intra AS—Calculation of all intra-AS prefixes is triggered. · Inc intra AS—Calculation of incremental intra-AS prefixes is triggered. · Full inter AS—Calculation of all AS-external prefixes is triggered. · Inc inter AS—Calculation of incremental AS-external prefixes is triggered. · N/A—Route calculation is not triggered.
Current calculation type	Current route calculation type: · SPF calculation. · Intra router calculation—Intra-area route calculation. · ASBR calculation—Inter-area ASBR route calculation. · Inc intra router—Incremental intra-area route calculation. · Inc ASBR calculation—Incremental inter-area ASBR route calculation. · 7to5 translator—Type-7-to-Type-5 LSA calculation. · Full intra AS—Calculation of all intra-AS prefixes. · Inc intra AS—Calculation of incremental intra-AS prefixes. · Full inter AS—Calculation of all AS-external prefixes. · Inc inter AS—Calculation of incremental AS-external prefixes. · Forward address—Forwarding address calculation. · N/A—Route calculation is not triggered.
Current calculation phase	Current route calculation phase: · Calculation area topology—Calculating area topology. · Calculation router—Calculating routes on routers. · Calculation intra AS—Calculating intra-AS routes. · 7to5 translator—Calculating Type-7-to-Type-5 LSAs. · Forward address—Calculating forwarding addresses. · Calculation inter AS—Calculating AS-external routes. · Calculation end—Ending phase of calculation. · N/A—Route calculation is not triggered.
Process reset state	Process reset state: · N/A—The process is not reset. · Under reset—The process is in the reset progress. · Under RIB smooth—The process is synchronizing the RIB.
Current reset type	Current process reset type: · N/A—The process is not reset. · Normal—Normal reset. · GR quit—Normal reset when GR quits abnormally. · Delete—Delete OSPF process. · VPN delete—Delete VPN.
Next reset type	Next process reset type: · N/A—The process is not reset. · Normal—Normal reset. · GR quit—Normal reset when GR quits abnormally. · Delete—Delete OSPF process. · VPN delete—Delete VPN.
Reset prepare message replied	Modules that reply reset prepare messages: · P—Neighbor maintenance module. · L—LSDB synchronization module. · C—Route calculation module. · R—Route redistribution module.
Reset process message replied	Modules that reply reset process messages: · P—Neighbor maintenance module. · L—LSDB synchronization module. · C—Route calculation module. · R—Route redistribution module.
Reset phase of module	Reset phase of each module: · Main control module: ¡ N/A—Not reset. ¡ Delete area. ¡ Delete process. · Neighbor maintenance (P) module: ¡ N/A—Not reset. ¡ Delete neighbor. ¡ Delete interface. ¡ Delete vlink—Delete virtual link. ¡ Delete shamlink—Delete sham link. · LSDB synchronization (L) module: ¡ N/A—Not reset. ¡ Stop timer. ¡ Delete ASE—Delete all ASE LSAs. ¡ Delete ASE maps—Delete ASE LSA maps. ¡ Clear process data. ¡ Delete area LSA—Delete LSAs and maps from an area. ¡ Delete area interface—Delete interfaces from an area. ¡ Delete process—Delete process-related resources. ¡ Restart—Restart process-related resources. · Route calculation (C) module: ¡ N/A—Not reset. ¡ Delete topology—Delete area topology. ¡ Delete router—Delete routes of routers. ¡ Delete intra AS—Delete intra-AS routes ¡ Delete inter AS—Delete AS-external routes. ¡ Delete forward address—Delete forwarding address list. ¡ Delete advertise—Delete advertising router list. · Route redistribution (R) module: ¡ N/A—Not reset. ¡ Delete ABR summary—Delete summary routes of the ABR. ¡ Delete ASBR summary—Delete summary routes of the ASBR. ¡ Delete import—Delete redistributed routes.
MPLS segment routing	SR-MPLS status: Disabled or Enabled.
Segment routing adjacency	Adjacency label allocation status: Disabled or Enabled.
Configured SRGB	Configured SRGB range. This field is displayed when SRGB is configured.
Effective SRGB	SRGB range that takes effect.
Segment routing global block	SRGB range.
Segment routing local block	SRLB range.
Area	Area ID in the IP address format.
MPLS TE not enabled	‌ Status of MPLS TE for the OSPF area, which can be MPLS TE not enabled or MPLS TE enabled.
Authentication type	Authentication type of the area: · None—No authentication. · Simple—Simple authentication. · Cryptographic—Encrypted authentication. Options include MD5, HMAC-MD5, and HMAC-SHA-256. · Keychain—Keychain authentication.
Area flag	Type of the area: · Normal. · Stub. · StubNoSummary (totally stub area). · NSSA. · NSSANoSummary (totally NSSA area).
7/5 translator state	State of the translator that translates Type-7 LSAs to Type-5 LSAs: · Enabled—The translator is specified through commands. · Elected—The translator is designated through election. · Disabled—The device is not a translator.
7/5 translate stability timer interval	Stability interval for Type-7 LSA-to-Type-5 LSA translation.
SPF scheduled Count	SPF calculation count in the OSPF area.
Interface	Interface in the area.
Cost	Interface cost.
State	Interface state.
Type	Interface network type.
MTU	Interface MTU.
Priority	Router priority.
Timers	OSPF timers: · Hello—Interval for sending hello packets. · Dead—Interval within which the neighbor is down. · Poll—Interval for sending hello packets. · Retransmit—Interval for retransmitting LSAs.
FRR backup	Whether Loop Free Alternate (LFA) calculation is enabled on an interface.
FRR remote-LFA	Whether remote LFA calculation is enabled on an interface.
FRR TI-LFA	Whether TI-LFA calculation is enabled on an interface.
Enabled by interface configuration (including secondary IP addresses)	OSPF is enabled on the interface. including secondary IP addresses indicates that OSPF advertises the direct routes to the primary and secondary addresses of the interface.
Keychain authentication: Enabled (xx), inherited	Keychain authentication is enabled. The name of the keychain is xx. If the interface uses the authentication mode specified for the area to which the interface belongs, this field displays inherited after the authentication mode.
No authentication is required	None authentication is enabled. An interface does not inherit the authentication configuration of the area to which the interface belongs.
Cryptographic authentication: Enabled, inherited	Authentication mode used by the interface, which can be MD5, HMAC-MD5, or HMAC-SHA-256. If the interface uses the authentication mode specified for the area to which the interface belongs, this field displays inherited after the authentication mode.
The last key is xx	The most recent MD5/HMAC-MD5/HMAC-SHA-256 authentication key ID is xx.
The rollover is in progress, xx neighbor(s) left	Key rollover for MD5/HMAC-MD5/HMAC-SHA-256 authentication is in progress. The number of neighbors that have not completed rollover is xx.
Prefix-SID type	Prefix SID type: · Absolute—Absolute value of the prefix SID. · Index —Index value of the prefix SID.
Value	Prefix SID value.
Process ID	OSPF process ID specified during prefix SID configuration
Prefix-SID validity	Whether the prefix SID is valid: · Invalid—The prefix SID is invalid. Possible reasons include: ¡ The prefix SID is out of the SRGB range. ¡ The OSPF process ID configured on the loopback interface is different from the OSPF process ID specified during prefix SID configuration. · Valid—The prefix SID is valid.

05-Network Connectivity Command Reference

description

display ospf hostname-table

display ospf statistics

network

reset ospf event-log

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