diff --git a/doc/bird.sgml b/doc/bird.sgml index e15e3dd1..83dec4f8 100644 --- a/doc/bird.sgml +++ b/doc/bird.sgml @@ -403,6 +403,14 @@ configured for all relevant protocols and requires protocol-specific support (currently implemented for Kernel and BGP protocols), it is activated for particular boot by option Some protocols (e.g. BGP) could be restarted gracefully after both +intentional outage and crash, while others (e.g. OSPF) after intentional outage +only. For planned graceful restart, BIRD must be shut down by + command instead of +regular command. In this way routing neighbors +are notified about planned graceful restart and routes are kept in kernel table +after shutdown. + Configuration