Hi Hartmut,
here the explanation from the knowledge transfer slides of v7.0 regarding FCA.....
FCA adjustable in 5 levels between:
–Packet Fairness = same as V6R1 but fixes aggregation/non-aggregation ratio
–Airtime Fairness = each client gets a equal share of the airtime
•Intermediate levels will produce result on a geometrical scale
–If the throughput for a client with Airtime Fairness is 16 times larger than with Packet Fairness,
then the intermediate levels will produce approximately 2, 4 and 8 times the throughput.
Ron