I had tried this #iptables -t mangle -A PREROUTING -p tcp --sport 20 -j MARK --set-mark 1 #tc qdisc add dev eth0 root handle 1:0 cbq bandwidth 10Mbit avpkt 1000 cell 8 #tc class add dev eth0 parent 1:0 classid 1:1 cbq bandwidth 10Mbit rate 10Mbit weight 1Mbit prio 8 allot 1514 cell 8 maxburst 20 avpkt 1000 #tc class add dev eth0 parent 1:1 classid 1:1234 cbq bandwidth 10Mbit rate 128Kbit weight 12Kbit prio 5 allot 1514 cell 8 maxburst 20 avpkt 1000 bounded isolated #tc qdisc add dev eth0 parent 1:1234 tbf rate 128Kbit buffer 10Kb/8 limit 15Kb mtu 1500 #tc filter add dev eth0 parent 1:0 proto ip handle 1 fw classid 1:1234 And, we tested with ftp, we didn't get result that I would expected. any suggest ? let me know your example for fw classifier .... Best Regards Johan -- -'- (o o) ---------ooO--(_)--Ooo------------------------------------------------- ( )/ \( )( ) ( ) ( \( ) Visit us at http://www.pinguind.co.id __)(( () ))__( /__\ ) ( Feel free to contact me at ICQ #47240718 (___/ \__/(_)(_)(_)(_)(_)\_) email:johan@xxxxxxxxxxxxxx -----------------------------------------------------------------------