Yes, it is really this. What I want is simple, but I don't know if can be done.
I'm using RoS 6.47.2.
I want to modify the BGP Local Pref, increasing its value. Something like:
set bgp-local-pref=(bgp-local-pref + 10)
Can it be done? The filter is ok - I can set any value I want to Local Pref. But I don't know how to increase the already existing value.