This is my first attempt at understanding lartc: I want to throttle outgoing bandwidth fo a certain tcp port and leave other traffic the way it was. so I put a prio qdisc at the root of eth0 (dummy priomap since i want to use filters to switch bands): $ tc qdisc add dev eth0 root handle 1: prio bands 2 priomap 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 then attach a tbf qdisc at 1:2 : $ tc qdisc add dev eth0 parent 1:2 handle 20: tbf rate 2kbit buffer 100 limit 300 now i want traffic to port 4662 to be enqueued to the tbf qdisc: $ tc filter add dev eth0 parent 1:0 protocol ip prio 1 u32 match ip sport 4662 0xffff flowid 1:2 but it doesn't work: RTNETLINK answers: Invalid argument why? wrong syntax? thanks Radu
