I am unable to combine netem with pfifo_fast so that at the root I have pfifo_fast and then netem as sub childs on the same interface.
I can afford to run
sudo tc qdisc add dev <interface_name> root handle 1:0 pfifo_fast and then
sudo tc qdisc add dev <interface_name> parent 1:1 handle 10: netem rate 200mbit
but running the same 2 commands but with swapped positions for pfifo_fast and netem I get RTNETLINK answers: Operation not supported. What is the cause of this and is it even possible to get it as I want?
