similar to: HTB, MPU, and suitable values

Hi. I wrote in a reply to a mail on here recently that you can''t set mpu (minimum packet unit) on HTB as you can on CBQ. I''ve just noticed that there is a patch on devik''s site which does mpu and overhead. http://luxik.cdi.cz/~devik/qos/htb/ For dsl users mpu is, for practical purposes going to be 106 - overhead is still variable though, depending on packet size.

I know there is that handy patch available to very efficiently use ATM bandwidth, but I was wondering what the best values to use with a non-patched iproute2 would be. Anyone here care to check my logic in coming up with these numbers and perhaps suggest better values? My transmit speed is 768kbps per ADSL line (I have two). This is the HTB shaping I do on the interface (logic used for this

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello, I''m using HTB to shape my outgoing traffic over a ADSL-link with PPPoE with a nominal bandwidth of 128kbit/s. My goal is to favour small packets like ACKs and interactive services like ssh; in other words, I want to achieve low lantency. If there are some big packets going over the wire, everything works fine. But if there are

OK, here it is. Near perfect bandwidth calculation for ADSL users. Patch iproute2 with the HTB stuff and then this: It''s still a hack (as far as I can tell) because we are patching the rates tables, and hence I think it is only loosly coupled with the actual calculation of bytes in each bucket. However, it works very nicely for me! I have only been lightly testing with

Hello, i have a htb setup where the root and (nearly) all child classes has a ceil rate with max up from my adsl line. But the root class don''t reach the ceil value but some childs are get a huge backlog. My setup: (tc -d class show dev ppp0) [cleaned a bit] ******************************************************** class htb 1:1 root rate 576000bit ceil 576000bit burst 30Kb/8 cburst

tc qdisc add dev eth0 root handle 1: htb default 12 tc class add dev eth0 parent 1: classid 1:10 rate 30kbps ceil 100kbps burst 2k tc class add dev eth0 parent 1: classid 1:11 rate 10kbps ceil 100kbps burst 2k tc class add dev eth0 parent 1: classid 1:12 rate 60kbps ceil 100kbps burst 2k tc filter add dev eth0 protocol ip parent 1:0 prio 1 u32 match ip src 172.16.11.2 flowid 1:10 i login

Eric, I''ve attached the output from the command you requested below. I''m using kernel 2.6.17.12 and tc version ss060323. I''m have a nforce4 onboard giggabit controller using the forcedeth driver, if that makes a difference. Charlie, I''ll take a look at the Apache model for throttling, thanks. I was going for tc because was going to try to add additional

We run a Hosting farm behind a bridge/iptables firewall setup running Gentoo with kernel 2.4.20-gentoo-r6, connected to a dual 15Mbps international internet pipe / , as this: Net Pipe --------- eth1 Bridge/Firewall eth0 -------- Internal Hosting Network lately we have been looking at htb to somehow control excessive usage from the users behind, but in our implementation there seems to be an

Hello, I use HTB with linux-2.4.20-ac1 and iptables-1.2.7a (pathced for IMQ). I configured one HTB qdisc on an IMQ device. This qdisc has some classes (about 5) and all of the classes has qdisc pfifo. I sometimes got out from my linux (while I was working) and I found in logs: Dec 4 11:49:27 core kernel: HTB init, kernel part version 3.7 Dec 4 11:49:28 core kernel: HTB: quantum of class

Hello, I have HTB on IMQ device. My rate does not work as I configured. I configured 1920kbit/s and I can download only about 290kbit/s (while it should be the whole bandwidth). My script: /sbin/modprobe imq numdevs=1 /usr/local/sbin/tc qdisc del dev imq0 root 2> /dev/null > /dev/null /usr/local/sbin/tc qdisc del dev imq0 ingress 2> /dev/null > /dev/null /sbin/ifconfig imq0 down

Hi all ! I''m building a network appliance whose goals are to enhance Voip quality on 512/128k DSL links. But, i have a voice quality problem, and i think i''m doing something wrong, but i can''t find what. Please excuse my terrible english, i''m french. >From what i''ve read, tc is the tool i need. I read the documentations, readmes and lartc.org

I just wanted to inform that there is new patch donated by Walter Karshat which implements packet overhead and MPU computations to the rate table. See diff for details on arguments. No tc binary available yet at I have to compile it on system with older glibc (not everyone use 2.3.2). ------------------------------- Martin Devera aka devik Linux kernel QoS/HTB maintainer

//Just to not forget eth0 is WAN and eth1 is LAN . The box is NATing my lan. I configured tcng to shape both download and upload and i got connection loss again. Maybe it is my script fault or it is something bad with packets marking . this is how i mark outgoing packets iptables -t mangle -A MYSHAPER-OUT -p tcp -s 192.168.1.23 -j MARK --set-mark $ip and this part of my script which is intented

Hey all. I''m trying to set up QoS using the HTB qdisc in a very basic setup, but it the example shown in the howto doesn''t seem to be working. While the packets show up in the correct classes, they appear to be completely ignoring the rates, meaning nothing gets shaped. My setup is that I''ve got a a bunch of machines behind my firewall/router: 1.2.3.1

Hello, I have a serious problem with HTB which I wasn''t able to solve myself. I run a masquerading router with ppp0 as interface to the Internet. Three clients need to share a downstream of 1 MBit, which I want to divide with tc. When I see a packet being forwarded to one of these clients, I give it the appropriate unique mark: iptables -t mangle -A FORWARD -d 192.168.34.141 -j MARK

Hi all, I have been getting some strange results with HTB in kernel 2.6.11, and was wondering if anybody could give me some advice. Also, if someone could direct me to the changelog for the recent versions so I can see if it is worth upgrading? Anyway, the problem can best be summed up by looking at the output of ''tc -s -d class show dev eth0''. Some of the relevant results

Hi, I''m trying to get HTB working correctly on Centos4 (RHEL-based) with kernel 2.6.9-34.EL. I have two gigabit network interfaces bridged together and I have created the following: tc qdisc add dev eth2 root handle 1: htb default 1 r2q 8000 tc class add dev eth2 parent 1: classid 1:1 htb rate 100Mbit burst 24k cburst 24k (I have been trying different parameters). The network is

Hello! I need to switch from htb2 to htb3, because of speed issues (for me, htb2 is unable to handle more then 100mbit duplex with ~550 classes), kernel profiling shows htb_dequeue_prio at 1st place with 3x isolation. So, I''ve moved from 2.4.19 to 2.4.25 kernel (hi-pac for classification/marking and htb3 for queueing), and traffic rate drop from 100 to 20mbit. What can be wrong? The

Hi ; MY script: tc-htb3 qdisc del dev eth2 root ipchains -F tc-htb3 qdisc add dev eth2 root handle 10: htb default 20 r2q 40 tc-htb3 class add dev eth2 parent 10: classid 10:1 htb rate 50Mbit burst 2000 tc-htb3 class add dev eth2 parent 10:1 classid 10:100 htb rate 12mbit ceil 50mbit prio 1 tc-htb3 class add dev eth2 parent 10:1 classid 10:20 htb rate 38mbit ceil 50Mbit prio 8 ipchains

Hi, What exactly are the "tokens"? I thought each token allowed the sending of one byte, that tokens are stored in a bucket that can hold a max of "burst" tokens, and that this bucket is filled with tokens at "rate". But theory does not seem to explain the "tc -s .." output in the examples below. And I can''t figure out why or how... #tc qdisc