Hi All, I am using the script below to limit download rates and manage traffic for a certain IP address and testing the results using iperf. The rate that iperf reports is much higher than the rate I have configured for the HTB qdisc. It's probably just some newbie trap that's messing things up but I'm buggered if I can see it. The following script is run on the server (192.168.10.30): (I have simplified it and removed all of the ceil parameters during my troubleshooting process) # Remove any existing qdisc tc qdisc del dev eth0 root handle 1: # Root queueing discipline tc qdisc add dev eth0 root handle 1: htb default 10 # Root class tc class add dev eth0 parent 1: classid 1:1 htb rate 100mbit burst 1500 ceil 100mbit # Default class tc class add dev eth0 parent 1:1 classid 1:10 htb rate 30mbit ceil 100mbit burst 1500 # Rate limited classes tc class add dev eth0 parent 1:1 classid 1:4 htb rate 300kbit tc class add dev eth0 parent 1:4 classid 1:40 htb rate 50kbit tc class add dev eth0 parent 1:4 classid 1:41 htb rate 50kbit tc class add dev eth0 parent 1:4 classid 1:42 htb rate 200kbit tc qdisc add dev eth0 parent 1:40 handle 40: sfq perturb 10 tc qdisc add dev eth0 parent 1:41 handle 41: sfq perturb 10 tc qdisc add dev eth0 parent 1:42 handle 42: sfq perturb 10 # Filters to direct traffic to the right classes: U32="tc filter add dev eth0 protocol ip parent 1:0 prio 1 u32" $U32 match ip dst 192.168.10.85 match ip sport 3389 0xffff flowid 1:42 $U32 match ip dst 192.168.10.85 match ip sport 1352 0xffff flowid 1:41 $U32 match ip dst 192.168.10.85 flowid 1:40 The client (192.168.10.85) then runs iperf to test the results: iperf -c 192.168.10.30 -p 1352 -P 5 -f k [SUM] 0.0-11.4 sec 3016 KBytes 2163 Kbits/sec iperf -c 192.168.10.30 -p 23 -P 5 -f k [SUM] 0.0-11.4 sec 2856 KBytes 2053 Kbits/sec iperf -c 192.168.10.30 -p 3389 -P 5 -f k [SUM] 0.0-10.3 sec 11264 KBytes 8956 Kbits/sec The traffic is being shaped proportially as I'd hoped but each class is well in excess of its configured limit. I am getting similar results on two separate units: 1: Debian (testing), Kernel v2.6.16.19, iproute2 ss070313 2: Ubuntu (dapper), Kernel v2.6.23.1, iproute2 ss041019 I'd be very grateful for any information that could help me out. Thanks, Stu (newbie to HTB) _________________________________________________________________ What are you waiting for? Join Lavalife FREE http://a.ninemsn.com.au/b.aspx?URL=http%3A%2F%2Flavalife9%2Eninemsn%2Ecom%2Eau%2Fclickthru%2Fclickthru%2Eact%3Fid%3Dninemsn%26context%3Dan99%26locale%3Den%5FAU%26a%3D30288&_t=764581033&_r=email_taglines_Join_free_OCT07&_m=EXT_______________________________________________ LARTC mailing list LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
