RAdv protocol could be configured to change its behavior based on
availability of routes. When this option is used, the protocol waits in
suppressed state until a <it/trigger route/ (for the specified network)
- is exported to the protocol, the protocol also returnsd to suppressed
+ is exported to the protocol, the protocol also returns to suppressed
state if the <it/trigger route/ disappears. Note that route export
depends on specified export filter, as usual. This option could be used,
e.g., for handling failover in multihoming scenarios.