/ip firewall mangle
add action=mark-connection chain=prerouting disabled=no dst-port=80 \
in-interface=br0 new-connection-mark=conn_web passthrough=yes protocol=\
tcp tcp-flags=syn
add action=mark-packet chain=prerouting connection-mark=conn_web disabled=no \
new-packet-mark=pkt_web passthrough=no
/queue type
add kind=pcq name=queue_web pcq-burst-rate=0 pcq-burst-threshold=0 \
pcq-burst-time=10s pcq-classifier=src-address pcq-dst-address-mask=32 \
pcq-dst-address6-mask=64 pcq-limit=50 pcq-rate=2M pcq-src-address-mask=\
32 pcq-src-address6-mask=64 pcq-total-limit=2000
/queue tree
add burst-limit=0 burst-threshold=0 burst-time=0s disabled=no limit-at=0 \
max-limit=0 name=web packet-mark=pkt_web parent=global-in priority=8 \
queue=queue_web