I did not mix these up. I'm using the 1:2 class for TCP and ICMP control packets, such as TCP acks which need an amount of bandwidth proportinat to the makimum download rate. On 11/12/05, andreas.klauer@xxxxxxxxxxxxxx <andreas.klauer@xxxxxxxxxxxxxx> wrote: > Quoting Ryan Castellucci <ryan.castellucci@xxxxxxxxx>: > > > I've called this setting it up on an IMQ device with speed 1200/256 > > on a 1536/384 line. > > > Perl code to set everything up below, if you comment out the system call, > > it'll list off all the tc commands executed. > > Hmmm, the output it produces for me is really weird. Could you post the output > of 'tc -d qdisc show dev <device>' and 'tc -d class show dev <device>' > somewhere, it's easier to understand and maybe that will make more > sense to me. > > The main problems in the output I get is that rates do not add up; children > class rates added up together is higher than parent class rate, which > means the > children take more bandwidth for guaranteed than the parent can offer. > Sometimes > child class ceil rates is greater than parent class ceil rate, which > should not > be exceeded in any case (at least to my understanding of HTB). > > By looking at your Perl code, you seem to be mixing up $speed_up and > $speed_down > quite a lot; at least to me it makes no sense to have a download class > as child > of an upload class, especially not with that much difference in available > download/upload rate. But I'm not really a Perl programmer, so maybe I > misunderstood this part. I did not mix these up. I'm using the 1:2 class for TCP and ICMP control packets, such as TCP acks which need an amount of bandwidth proportinate to the maximum download rate. The tc show output is attached. -- Ryan Castellucci http://ryanc.org/
# tc -d qdisc show dev imq0;tc -d class show dev imq0 qdisc htb 1: r2q 1 default 4 direct_packets_stat 0 ver 3.17 qdisc sfq 3: parent 1:3 limit 128p quantum 1500b flows 128/1024 perturb 10sec qdisc sfq 356: parent 1:356 limit 128p quantum 1500b flows 128/1024 perturb 10sec qdisc sfq 612: parent 1:612 limit 128p quantum 1500b flows 128/1024 perturb 10sec qdisc sfq 868: parent 1:868 limit 128p quantum 1500b flows 128/1024 perturb 10sec qdisc sfq 357: parent 1:357 limit 128p quantum 1500b flows 128/1024 perturb 10sec qdisc sfq 613: parent 1:613 limit 128p quantum 1500b flows 128/1024 perturb 10sec qdisc sfq 869: parent 1:869 limit 128p quantum 1500b flows 128/1024 perturb 10sec qdisc sfq 358: parent 1:358 limit 128p quantum 1500b flows 128/1024 perturb 10sec qdisc sfq 614: parent 1:614 limit 128p quantum 1500b flows 128/1024 perturb 10sec qdisc sfq 870: parent 1:870 limit 128p quantum 1500b flows 128/1024 perturb 10sec qdisc sfq 359: parent 1:359 limit 128p quantum 1500b flows 128/1024 perturb 10sec qdisc sfq 615: parent 1:615 limit 128p quantum 1500b flows 128/1024 perturb 10sec qdisc sfq 871: parent 1:871 limit 128p quantum 1500b flows 128/1024 perturb 10sec qdisc sfq 360: parent 1:360 limit 128p quantum 1500b flows 128/1024 perturb 10sec qdisc sfq 616: parent 1:616 limit 128p quantum 1500b flows 128/1024 perturb 10sec qdisc sfq 872: parent 1:872 limit 128p quantum 1500b flows 128/1024 perturb 10sec qdisc sfq 361: parent 1:361 limit 128p quantum 1500b flows 128/1024 perturb 10sec qdisc sfq 617: parent 1:617 limit 128p quantum 1500b flows 128/1024 perturb 10sec qdisc sfq 873: parent 1:873 limit 128p quantum 1500b flows 128/1024 perturb 10sec class htb 1:356 parent 1:4 leaf 356: prio 4 quantum 16000 rate 128000bit ceil 243000bit burst 15Kb/8 mpu 0b overhead 0b cburst 1902b/8 mpu 0b overhead 0b level 0 class htb 1:617 parent 1:5 leaf 617: prio 6 quantum 12750 rate 102000bit ceil 243000bit burst 15Kb/8 mpu 0b overhead 0b cburst 1902b/8 mpu 0b overhead 0b level 0 class htb 1:357 parent 1:4 leaf 357: prio 4 quantum 16000 rate 128000bit ceil 243000bit burst 15Kb/8 mpu 0b overhead 0b cburst 1902b/8 mpu 0b overhead 0b level 0 class htb 1:616 parent 1:5 leaf 616: prio 6 quantum 12750 rate 102000bit ceil 243000bit burst 15Kb/8 mpu 0b overhead 0b cburst 1902b/8 mpu 0b overhead 0b level 0 class htb 1:2 root rate 217000bit ceil 217000bit burst 64Kb/8 mpu 0b overhead 0b cburst 1870b/8 mpu 0b overhead 0b level 7 class htb 1:615 parent 1:5 leaf 615: prio 6 quantum 12750 rate 102000bit ceil 243000bit burst 15Kb/8 mpu 0b overhead 0b cburst 1902b/8 mpu 0b overhead 0b level 0 class htb 1:3 parent 1:2 leaf 3: prio 2 quantum 15500 rate 124000bit ceil 149000bit burst 64Kb/8 mpu 0b overhead 0b cburst 1785b/8 mpu 0b overhead 0b level 0 class htb 1:614 parent 1:5 leaf 614: prio 6 quantum 12750 rate 102000bit ceil 243000bit burst 15Kb/8 mpu 0b overhead 0b cburst 1902b/8 mpu 0b overhead 0b level 0 class htb 1:4 parent 1:2 rate 128000bit ceil 243000bit burst 64Kb/8 mpu 0b overhead 0b cburst 1902b/8 mpu 0b overhead 0b level 6 class htb 1:613 parent 1:5 leaf 613: prio 6 quantum 12750 rate 102000bit ceil 243000bit burst 15Kb/8 mpu 0b overhead 0b cburst 1902b/8 mpu 0b overhead 0b level 0 class htb 1:361 parent 1:4 leaf 361: prio 4 quantum 16000 rate 128000bit ceil 243000bit burst 15Kb/8 mpu 0b overhead 0b cburst 1902b/8 mpu 0b overhead 0b level 0 class htb 1:5 parent 1:2 rate 102000bit ceil 243000bit burst 64Kb/8 mpu 0b overhead 0b cburst 1902b/8 mpu 0b overhead 0b level 6 class htb 1:612 parent 1:5 leaf 612: prio 6 quantum 12750 rate 102000bit ceil 243000bit burst 15Kb/8 mpu 0b overhead 0b cburst 1902b/8 mpu 0b overhead 0b level 0 class htb 1:360 parent 1:4 leaf 360: prio 4 quantum 16000 rate 128000bit ceil 243000bit burst 15Kb/8 mpu 0b overhead 0b cburst 1902b/8 mpu 0b overhead 0b level 0 class htb 1:6 parent 1:2 rate 25000bit ceil 204000bit burst 64Kb/8 mpu 0b overhead 0b cburst 1854b/8 mpu 0b overhead 0b level 6 class htb 1:868 parent 1:6 leaf 868: prio 7 quantum 3125 rate 25000bit ceil 204000bit burst 15Kb/8 mpu 0b overhead 0b cburst 1854b/8 mpu 0b overhead 0b level 0 class htb 1:869 parent 1:6 leaf 869: prio 7 quantum 3125 rate 25000bit ceil 204000bit burst 15Kb/8 mpu 0b overhead 0b cburst 1854b/8 mpu 0b overhead 0b level 0 class htb 1:873 parent 1:6 leaf 873: prio 7 quantum 3125 rate 25000bit ceil 204000bit burst 15Kb/8 mpu 0b overhead 0b cburst 1854b/8 mpu 0b overhead 0b level 0 class htb 1:872 parent 1:6 leaf 872: prio 7 quantum 3125 rate 25000bit ceil 204000bit burst 15Kb/8 mpu 0b overhead 0b cburst 1854b/8 mpu 0b overhead 0b level 0 class htb 1:358 parent 1:4 leaf 358: prio 4 quantum 16000 rate 128000bit ceil 243000bit burst 15Kb/8 mpu 0b overhead 0b cburst 1902b/8 mpu 0b overhead 0b level 0 class htb 1:871 parent 1:6 leaf 871: prio 7 quantum 3125 rate 25000bit ceil 204000bit burst 15Kb/8 mpu 0b overhead 0b cburst 1854b/8 mpu 0b overhead 0b level 0 class htb 1:870 parent 1:6 leaf 870: prio 7 quantum 3125 rate 25000bit ceil 204000bit burst 15Kb/8 mpu 0b overhead 0b cburst 1854b/8 mpu 0b overhead 0b level 0 class htb 1:359 parent 1:4 leaf 359: prio 4 quantum 16000 rate 128000bit ceil 243000bit burst 15Kb/8 mpu 0b overhead 0b cburst 1902b/8 mpu 0b overhead 0b level 0
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