A new firewall condition

[nizzard0094]

a new firewall condition based on system status or systems component status

something like if gateway is idle and rule will be triggered .etc

system condition triggers some rules

[heper]

When is something idle?

On a 1mbit/s line 10KB/s would be significant. On a gigabit the same would be irrelevant.
Something like this will not happen any time soon (=difficult to implement)

You should investigate traffic shaping instead.

[nizzard0094]

i think policy based routing need it