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