display ospf statistics updated-lsa

Function

The display ospf statistics updated-lsa command displays the frequent updates of the LSAs that the Link State Database (LSDB) receives.

Format

display ospf [ process-id ] statistics updated-lsa [ originate-router advertising-router-id | history ]

Parameters

Parameter	Description	Value
process-id	Specifies the ID of an OSPF process. If no OSPF process ID is specified, this command displays brief information about the route calculation statistics in all processes.	The value is an integer ranging from 1 to 65535.
originate-router	Specifies the link status of the advertising router.	-
advertising-router-id	Specifies the ID of the advertising router (IP address).	In dotted decimal notation
history	Specifies the update history of LSAs that the LSDB receives.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

Usage Scenario

The display ospf statistics updated-lsa command is used to display the frequent updates of LSAs, facilitating the location of the cause for a routing flapping.

If the history parameter is not configured, the display ospf statistics updated-lsa command only displays the updates of LSAs within the latest hour.
If the history parameter is configured, the display ospf statistics updated-lsa command displays the change history of LSAs within the last 24 hours.

Precautions

If you run the reset ospf command to restart the OSPF process, the real-time and historical statistics on the process will be cleared.
The display ospf statistics updated-lsa command is used only to display the frequent updates of LSAs. The updated LSAs are compared with the LSAs in the local LSDB, and those with the age greater than 900 will not be displayed except those with the age of 3600.

Example

# Display the LSA updates within the last one hour.

<sysname> display ospf statistics updated-lsa

          OSPF Process 1 with Router ID 1.1.1.1
               Statistics of Received LSAs

 Begin time: 2014-11-25 11:37:32

 AdvRouter           Total        Updated at
 1.1.1.1             18           11:37:40/2014/11/25
 2.2.2.2             5            11:37:40/2014/11/25
 3.3.3.3             5            11:37:41/2014/11/25
 4.4.4.4             5            11:37:41/2014/11/25
 5.5.5.5             2            11:37:40/2014/11/25
 6.6.6.6             3            11:37:40/2014/11/25
 7.7.7.7             5            11:37:40/2014/11/25
 8.8.8.8             6            11:37:41/2014/11/25

**Table 1** Description of the **display ospf statistics updated-lsa** command output
Item	Description
Begin time	Start time of collecting statistics
AdvRouter	Advertising router
Total	Total update times of LSAs
Updated at	Latest update time

# Display the LSA updates of the specified advertising router.

<sysname> display ospf statistics updated-lsa originate-router 1.1.1.1

          OSPF Process 1 with Router ID 2.2.2.2
               Statistics of Received LSAs

 Begin time: 11:37:32/2014/11/25

 AdvRouter      : 1.1.1.1
 Total          : 6                 Updated at      : 11:37:41/2014/11/25
 Router(1)      : 3                 Network(2)      : 2
 Summary-Net(3) : 0                 Summary-Asbr(4) : 0
 External(5)    : 1                 NSSA(7)         : 0
 Opaque-link(9) : 0                 Opaque-area(10) : 0
 Opaque-area(11): 0

**Table 2** Description of the **display ospf statistics updated-lsa originate-router** command output
Item	Description
Router(1)	Update times of Router LSAs
Network(2)	Update times of Network LSAs
Summary-Net(3)	Update times of Network Summary LSAs
Summary-Asbr(4)	Update times of ASBR Summary LSAs
External(5)	Update times of AS External LSAs
NSSA(7)	Update times of Type-7 LSAs
Opaque-link(9)	Update times of Type-9 LSAs
Opaque-area(10)	Update times of Type-10 LSAs
Opaque-area(11)	Update times of Type-11 LSAs