Graceful-Restart Suppress-Sa - HP FlexFabric 5930 Series Command Reference Manual

Default
GR is disabled for SPBM.
Views
SPBM view
Predefined user roles
network-admin
Usage guidelines
Enable Graceful Restart before you re-enable SPBM or perform an active/standby switchover. Graceful
Restart ensures nonstop forwarding while ISIS-SPB processes are re-establishing their adjacency.
Examples
# Enable Graceful Restart for SPBM.
<Sysname> system-view
[Sysname] spbm
[Sysname-spbm] graceful-restart

graceful-restart suppress-sa

Use graceful-restart suppress-sa to enable ISIS-SPB to set the SA bit in hello messages sent when its FDB
is not usable during a restart.
Use undo graceful-restart suppress-sa to disable setting the SA bit during a restart.
Syntax
graceful-restart suppress-sa
undo graceful-restart suppress-sa
Default
The SA bit is set during a restart.
Views
SPBM view
Predefined user roles
network-admin
Usage guidelines
Setting the SA bit prevents the neighbor from advertising the ISIS-SPB adjacency with the GR restarter.
This command prevents route blackholes by temporarily excluding the restarter from the SPF
computation on other SPBM nodes.
Examples
# Enable ISIS-SPB to set the SA bit during a GR process.
<Sysname> system-view
[Sysname] spbm
[Sysname-spbm] graceful-restart suppress-sa
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