Hello, Is there some way to change bird's configuration on some external event? I would use it like this: There are 2 routers, active and passive. Active router exports default route for the rest of network. Passive router has exactly the same configuration, but filters out default route. When active/passive switch function, the new active somehow removes default route filter, the new passive adds default route filter. Another usage would be to change interface cost in OSPF at run-time and thus redirecting traffic from that particular interface. Currently I am doing it with rewritting bird's config file and reloading configuration. Is there some better way? Like setting some variable, which causes changes some filter conditions? Thanks ico