/ip firewall mangle
    add chain=prerouting protocol=tcp dst-port=80 dst-address-list=!nice action=mark-connection new-connection-mark=http_conn passthrough=yes
    add chain=prerouting connection-mark=http_conn connection-bytes=0-262146 action=mark-packet new-packet-mark=browsing passthrough=no
    add chain=output connection-mark=http_conn connection-bytes=0-262146 action=mark-packet new-packet-mark=browsing passthrough=no
    add chain=prerouting connection-mark=http_conn connection-bytes=131073-4294967295 action=mark-packet new-packet-mark=download passthrough=no
    add chain=output connection-mark=http_conn connection-bytes=131073-4294967295 action=mark-packet new-packet-mark=download passthrough=no


    /queue type
    add name="net-browsing" kind=pcq pcq-rate=0 pcq-limit=50 pcq-classifier=dst-address pcq-total-limit=2000
    add name="net-download" kind=pcq pcq-rate=0 pcq-limit=50 pcq-classifier=dst-address pcq-total-limit=2000


    /queue tree
    add name="INET" parent=LAN packet-mark="" limit-at=10000000 queue=default priority=3 max-limit=10000000 burst-limit=0 burst-threshold=0 burst-time=0s
    add name="client_browsing" parent=INET packet-mark=browsing limit-at=0 queue=net-browsing priority=1 max-limit=0 burst-limit=0 burst-threshold=0 burst-time=0s
    add name="client_download" parent=INET packet-mark=download limit-at=0 queue=net-download priority=8 max-limit burst-limit=0 burst-threshold=0 burst-time=0s