Users Guide

○ Unplanned-only: the OSPFv3 router supports graceful-restart only for unplanned restarts. During an unplanned restart,
OSPFv3 sends out a Grace LSA once the secondary RPM comes online.
The default is both planned and unplanned restarts trigger an OSPFv3 graceful restart. Selecting one or the other mode restricts
OSPFv3 to the single selected mode.
• Disable OSPFv3 graceful-restart.
CONF-IPV6-ROUTER-OSPF mode
no graceful-restart grace-period
Displaying Graceful Restart
To display information on the use and configuration of OSPFv3 graceful restart, enter any of the following commands.
• Display the graceful-restart configuration for OSPFv2 and OSPFv3 (shown in the following example).
EXEC Privilege mode
show run ospf
• Display the Type-11 Grace LSAs sent and received on an OSPFv3 router (shown in the following example).
EXEC Privilege mode
show ipv6 ospf database grace-lsa
• Display the currently configured OSPFv3 parameters for graceful restart (shown in the following example).
EXEC Privilege mode
show ipv6 ospf database database-summary
The following example shows the show run ospf command.
Dell#show run ospf
!
router ospf 1
router-id 200.1.1.1
log-adjacency-changes
graceful-restart grace-period 180
network 20.1.1.0/24 area 0
network 30.1.1.0/24 area 0
!
ipv6 router ospf 1
log-adjacency-changes
graceful-restart grace-period 180
The following example shows the show ipv6 ospf database database-summary command.
Dell#show ipv6 ospf database database-summary
!
OSPFv3 Router with ID (200.1.1.1) (Process ID 1)
Process 1 database summary
Type Count/Status
Oper Status 1
Admin Status 1
Area Bdr Rtr Status 0
AS Bdr Rtr Status 1
AS Scope LSA Count 0
AS Scope LSA Cksum sum 0
Originate New LSAS 73
Rx New LSAS 114085
Ext LSA Count 0
Rte Max Eq Cost Paths 5
GR grace-period 180
GR mode planned and unplanned
Area 0 database summary
Type Count/Status
Brd Rtr Count 2
AS Bdr Rtr Count 2
LSA count 12010
Summary LSAs 1
Rtr LSA Count 4
Open Shortest Path First (OSPFv2 and OSPFv3)
543