I have to HTB branches that continue to a SFQ qdisc.tc qdisc add dev eth0 root handle 1: htb default 20tc class add dev eth0 parent 1: classid 1:1 htbtc class add dev eth0 parent 1:1 classid 1:10 htb rate 10mbit prio 1tc class add dev eth0 parent 1:1 classid 1:20 htb rate 10mbit  prio 10tc qdisc add dev eth0 parent 1:10 classid 1:100 handle 10: sfq pertub 10 flows 1000                                                                                        tc qdisc add dev eth0 parent 1:20 classid 1:200 handle 20: sfq pertub 10  However I want to limit those branches by number of bytes and not packets at the end, so I would want to add a bfifo queue, but as far as I understood I can not add a children to the SFQ since they are classless.Edit To make it more clear. I want to be able to add a bfifo queue at the end of my hierarchy. But I can not add a new queue after the SFQ.
I want to limit a SFQ qdisc by bytes
linux;networking;tc