/ ip firewall mangle add chain=forward protocol=tcp tcp-flags=syn action=change-mss new-mss=1440 comment="" disabled=no add chain=forward p2p=all-p2p action=mark-connection new-connection-mark=p2p_conn passthrough=yes comment="" disabled=no add chain=forward connection-mark=p2p_conn action=mark-packet new-packet-mark=p2p passthrough=yes comment="" disabled=no add chain=forward connection-mark=!p2p_conn action=mark-packet new-packet-mark=general passthrough=yes comment="" disabled=no add chain=forward packet-size=32-512 action=mark-packet new-packet-mark=small passthrough=yes comment="" disabled=no add chain=forward packet-size=512-1200 action=mark-packet new-packet-mark=big passthrough=yes comment="" disabled=no / queue tree add name="p2p1" parent=adsl packet-mark=p2p limit-at=2000000 queue=default priority=8 max-limit=6000000 burst-limit=0 burst-threshold=0 burst-time=0s disabled=no add name="p2p2" parent=lan packet-mark=p2p limit-at=2000000 queue=default priority=8 max-limit=6000000 burst-limit=0 burst-threshold=0 burst-time=0s disabled=no add name="ClassA" parent=lan packet-mark="" limit-at=0 queue=default priority=8 max-limit=100000000 burst-limit=0 burst-threshold=0 burst-time=0s disabled=no add name="ClassB" parent=ClassA packet-mark="" limit-at=0 queue=default priority=8 max-limit=0 burst-limit=0 burst-threshold=0 burst-time=0s disabled=no add name="Leaf1" parent=ClassA packet-mark=general limit-at=0 queue=default priority=7 max-limit=0 burst-limit=0 burst-threshold=0 burst-time=0s disabled=no add name="Leaf2" parent=ClassB packet-mark=small limit-at=0 queue=default priority=5 max-limit=0 burst-limit=0 burst-threshold=0 burst-time=0s disabled=no add name="Leaf3" parent=ClassB packet-mark=big limit-at=0 queue=default priority=6 max-limit=0 burst-limit=0 burst-threshold=0 burst-time=0s disabled=no

还有一种 最简单:

/ ip firewall mangle add chain=forward protocol=tcp tcp-flags=syn action=change-mss new-mss=1440 comment="" disabled=no add chain=forward packet-size=0-32 action=mark-packet new-packet-mark=small passthrough=yes comment="" disabled=no add chain=forward packet-size=33-511 action=mark-packet new-packet-mark=small _BIG passthrough=yes comment="" disabled=no add chain=forward packet-size=512-1500 action=mark-packet new-packet-mark=big passthrough=yes comment="" disabled=no / queue tree add name="small" parent=lan packet-mark=small limit-at=0 queue=default priority=5 max-limit=6000000 burst-limit=0 burst-threshold=0 burst-time=0s disabled=no add name="small_big" parent=lan packet-mark=small_BIG limit-at=0 queue=default priority=6 max-limit=6000000 burst-limit=0 burst-threshold=0 burst-time=0s disabled=no add name="big" parent=lan packet-mark=big limit-at=0 queue