Configuring Gr Helper; Triggering Ospfv3 Gr; Configuring Ospfv3 Nsr - HP FlexFabric 12900E Series Configuration Manual

Step
2. Enter OSPFv3 view.
3. Enable the GR capability.
4. (Optional.) Set the GR
interval.

Configuring GR helper

You can configure the GR helper capability on a GR helper.
To configure GR helper:
Step
1. Enter system view.
2. Enter OSPFv3 view.
3. Enable
helper capability.
4. Enable
checking.

Triggering OSPFv3 GR

OSPFv3 GR is triggered by an active/standby switchover or when the following command is
executed.
To trigger OSPFv3 GR, perform the following command in user view:
Task
Trigger OSPFv3 GR.

Configuring OSPFv3 NSR

Nonstop routing (NSR) backs up OSPFv3 link state information from the active process to the
standby process. After an active/standby switchover, NSR can complete link state recovery and
route regeneration without tearing down adjacencies or impacting forwarding services.
NSR does not require the cooperation of neighboring devices to recover routing information, and it is
typically used more often than GR.
IMPORTANT:
A device that has OSPFv3 NSR enabled cannot act as GR restarter.
To enable OSPFv3 NSR:
Command
ospfv3 [ process-id | vpn-instance
vpn-instance-name ] *
graceful-restart enable [ global |
planned-only ] *
graceful-restart interval interval
Command
system-view
ospfv3 [ process-id | vpn-instance
vpn-instance-name ] *
the GR
graceful-restart
[ planned-only ]
strict LSA
graceful-restart
strict-lsa-checking
Remarks
N/A
N/A
helper enable By default, the GR helper capability is
enabled.
helper
By default, strict LSA checking is
disabled.
Command
reset ospfv3 [ process-id ] process graceful-restart
417
Remarks
N/A
By default, OSPFv3 GR restarter
capability is disabled.
By default, the GR interval is 120
seconds.