During my tests I'm starting to feel stupid :). Traffic shaping works quite on its own. System: RedHat 7.3, RedHat kernel 2.4.18-18.7.xsmp, HTB version 3.6, interfaces eth0 and eth1 are acting as bridge br0. If TCP shaping almost works, it just exceeds limits UDP is not shaped. Traffic flows PC=>eth0=>eth1=>PC. Statistics shown is for just UDP traffic (1mbit of small udp packets). What strange is that I do not see dropped or overlimits packets. Lots of info is at the end of the letter. Where is my mistake? Thanks, Mindaugas ================================================================ $TC qdisc del dev eth1 root $TC qdisc add dev eth1 root handle 1: htb $TC class add dev eth1 parent 1: classid 1:200 htb rate 256kbit $TC qdisc add dev eth1 parent 1:200 handle 200: sfq perturb 10 $TC filter add dev eth1 parent 1: protocol ip prio 1 u32 match ip dst $ip flowid 1:200 #for w in "qdisc" "class" "filter"; do bin/tc -s -d $w show dev eth1; echo; done qdisc sfq 200: quantum 1514b limit 128p flows 128/1024 perturb 10sec Sent 25485900 bytes 424765 pkts (dropped 0, overlimits 0) qdisc htb 1: r2q 10 default 0 direct_packets_stat 552 ver 3.6 Sent 25553103 bytes 425317 pkts (dropped 0, overlimits 0) class htb 1:200 root leaf 200: prio 0 quantum 3276 rate 256Kbit ceil 256Kbit burst 1919b/8 mpu 0b cburst 1919b/8 mpu 0b level 0 Sent 25486560 bytes 424776 pkts (dropped 0, overlimits 0) rate 162710bps 2711pps lended: 424776 borrowed: 0 giants: 0 tokens: 30 ctokens: 30 filter parent 1: protocol ip pref 1 u32 filter parent 1: protocol ip pref 1 u32 fh 800: ht divisor 1 filter parent 1: protocol ip pref 1 u32 fh 800::800 order 2048 key ht 800 bkt 0 flowid 1:200 match d5e28382/ffffffff at 16