Allowing specific extension low priority and other traffic high priority by simple queue

In this example we are marking traffic via mangle rules. .iso extension is marked as low priority traffic , and all other traffic is marked as hi priority traffic.

For example We have 256kb internet bandwidth in total. and we want that when users are downloading any .iso file, it gets low priority over other traffic i.e browsing etc. Use the following.



/ip firewall mangle

add action=mark-connection chain=postrouting comment="Mark Conn for .iso Ext" content=iso disabled=no new-connection-mark=iso-conn passthrough=yes

add action=mark-packet chain=postrouting comment="Mark Pkts for iso-conn Ext" connection-mark=iso-conn disabled=no new-packet-mark=lo-prio-traffic-pkts passthrough=no

add action=mark-connection chain=postrouting comment="Mark Conn for all other traffic" content=!iso disabled=no new-connection-mark=hi-prio-traffic-conn passthrough=yes

add action=mark-packet chain=postrouting comment="Mark Pkts for all other traffic" connection-mark=hi-prio-traffic-conn disabled=no new-packet-mark=hi-prio-traffic-pkts passthrough=no

/queue simple add name=wan_conn_limit interface=ether1 max-limit=256k/256k

/queue simple add name=hi-prio-traffic interface=ether1 parent=wan_conn_limit packet-marks=hi-prio-traffic-pkts priority=1

/queue simple add name=lo-prio-traffic packet-marks=lo-prio-traffic-pkts interface=ether1 parent=wan_conn_limit priority=8