Hi, Yes, you can do that. The best practice (at least for myself) is using the separate auto-generated config with prefix-lists which is included to the bird.conf. After regenerating it via some of your scripts, just run birdc configure. The reconfiguration of import/export filters is completely seamless. As for the performance impact: it uses some extra CPU power for recalculating bestpathes but it lasts for ~1 second on modern CPUs.
Whant kind of example do you want? Just make another file, write your prefix-lists as a variables (or constants) there and use the 'include' statement in the bird.conf. Ofc, use those variables in your filters. Liran Schour писал 2017-02-14 13:46: > Hi all, > > I want to implement a dynamic filter where I will export a route based on > matching against a dynamic set of prefixes. The set is maintained according > to a database. > > 1. Can I maintain a dynamic set of prefixes and change the set on the fly? > What are the performance impacts of this? > 2.. Where can I find such an example? > > - Liran
