for linkstate traps there is an action (not configured by default) for the trap receiver to change the interface state in receipr of ifUP (and a different one for ifDown). Configure those in the trap receiver and interface state will change more rapidly.
there isn't this functionality for nodes (but only UPS send 'almost out of power, shutting down' traps); not sure what traps would equate to 'node down'
Thank you very much. It seems indeed I can do this by firing an action that will change the status of the interface.
It would be great if I knew how to declare a Node down on the same basis. But nevermind, that is the primary feature I was looking for.