374
Predefined user roles
network-admin
Usage guidelines
To prevent service interruption after a master/backup switchover, a GR Restarter running OSPFv3 must
complete the following tasks:
•
Keep the GR Restarter forwarding entries stable during reboot.
•
Establish all adjacencies and obtain complete topology information after reboot.
Examples
# Enable the GR capability for OSPFv3 process 1.
<Sysname> system-view
[Sysname] ospfv3 1
[Sysname-ospfv3-1] graceful-restart enable
Related commands
graceful-restart helper enable
graceful-restart helper enable
Use
graceful-restart helper enable
to enable the GR Helper capability for OSPFv3.
Use
undo graceful-restart helper enable
to disable the GR Helper capability for OSPFv3.
Syntax
graceful-restart helper enable
undo graceful-restart helper enable
Default
The GR Helper capability for OSPFv3 is enabled.
Views
OSPFv3 view
Predefined user roles
network-admin
Usage guidelines
Upon receiving the Grace-LSA, the neighbors with the GR Helper capability enter the helper mode (and
are called "GR Helpers"). Then, the GR Restarter retrieves its adjacencies and LSDB with the help of the
GR Helpers.
Examples
# Enable the GR Helper capability for OSPFv3 process 1.
<Sysname> system-view
[Sysname] ospfv3 1
[Sysname-ospfv3-1] graceful-restart helper enable
Related commands
graceful-restart enable