If the tFilterRUTRespAction is either 'increase(1)' or 'decrease(2)'
tFilterRUTRespPrioChange specifies the offset to be applied to the
destination base priority (tFilterRDAdminPriority) in order to
compute the tFilterRDOperPriority as a result of this test.
If the tFilterRUTRespAction is set to 'disable(3)', on the reception
of the specified response, the destination will be deemed
unusable and the tFilterRDOperPriority will be set to '0'.
The value of tFilterRUTRespAction will be forced by the system to
the value 'disable(3)' if the tFilterRUTRespPrioChange has the value '0'.
Any change attempts will be silently discarded in this case.