Updating export filter for OSPF

[Ruben Laban]

Hi,

I was wondering if it's somehow possible to update the export filter for an 
OSPF instance without having to completely restart that OSPF instance. From 
the tests I've performed, the only way to have bird pick up the new export 
filter, is to restart the protocol in question. The downside of this is that 
that leads to a downtime of several seconds before OSPF gets into a fully 
established state again. Am I missing something or is restarting a protocol 
the only way to for a protocol to pick up filter changes? I guess the same 
would apply to, the much more common, BGP import/export filters.

Regards,
Ruben Laban