similar to: TCP window based shaping

Hey list I have almost gotten my shaping setup up and running as planned. The last barrier seems to be tcp overshooting availible bandwidth when its starting a transfer, and thereby bursting the line, so ping rises for a moment. At least this is my best guess at the problem :) There is a possibility that its just plain old traffic being bursty for some reason.. I am using bittorrent to test this,

Hi I share my bandwith (adsl 512/128) between 12 users. I set up simple qos script for incoming (IMQ) and outgoing traffic using htb in root, 4 classess and esfq qdisc at leafs. Interactive traffic goeas to class1 , http,mail etc. to class2, p2p, ftp to class3, and rest to class4. Classess divide link in proportion 20% (prio 1), 40% (prio 2), 20% (prio 3) ,20% (prio 4) This works

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, Has anyone had any luck compiling Alexander''s QOS script on a vanilla FC3 or FC2 box? I just cant seem to get the darn thing to port right. Regards, Bryan _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

[I sent this earlier but I guess the list is subscriber-only?] I just set up wondershaper, it has a simple filter on the downstream direction to limit the bandwidth usage: tc qdisc add dev $DEV handle ffff: ingress tc filter add dev $DEV parent ffff: protocol ip prio 50 u32 match ip src \ 0.0.0.0/0 police rate ${DOWNLINK}kbit burst 10k drop flowid :1 This is effective but is there any way to

Hello, I''m wondering which of these filters is the best method for filtering ACK packages to achieve lowest delay possible on a dsl-link. This one ist from the wondershaper from the lartc-site: /sbin/tc filter add dev $EXTIF parent 1:0 protocol ip prio 0 u32 \   match ip protocol 6 0xff \   match u8 0x05 0x0f at 0 \   match u16 0x0000 0xffc0 at 2 \   flowid 1:10 Thats a suggestion

Two easy questions after having read the LARTC HOWTO document (which by the way is a *fantastic* document. Congratulations to all who contributed!) First is: Can I prioritise my "drops" on incoming traffic when the link is overloaded. ie instead of just tail dropping, can I "prefer" to drop certain classes of traffic? If so, do I do this by setting up, say, a HTB tree

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 have a Cable ''modem'' that has a problem that many of these devices is bound to have. I was wondering what other lartc user thought about this and if DSL has simular problems. Cable, being Asymetrical, is able to upload at a given rate and hopefully has a buffer, in the modem, of some kind. When I nc(netcat) to a UDP echo, or discard, server I get about 10Mbps out on my

I''m playing with the rather excellent QOS script from Alexander Clouter at http://digriz.org.uk/jdg-qos-script/ So far I am really impressed with it - a very impressive example of the power of linux QOS rules (has pretty much everything in it from the LARTC Howto!) However, the instructions hint that "for QoS to affect locally generated traffic in a non ethernet bridge setup

Hi all, I have been trying to investigate traffic shaping in an effort to solve the "unfriendly network apps" problem on a test network. I have a basis by which I''d like to shape traffic, but studying the howto doesn''t uncover and existing qdisc that seems to fit what I would like to do. The problem I would like to address is to prevent an IP address opening 10

Hello, I''ve been trying to shape the bittorrent traffic (on my external interface, upload), but without luck, for this I''m using layer7 filter right now, but I''ve also tried ipp2p, with the same results, I might say that this is not a problem with this packet classifiers, the problem is with HTB, here''s why. When I open azureus (the bittorrent client I

Hello there, I''m having lots of problems with my setup here. Let me explain: I am network administrator for my university dorm. We are about 300 users, and we have 2 ADSL connections doing load balancing with 300kbits upstream and 2Mbit downstream. The load balancing is working great, we are doing connection tracking so I can mark and hence prioritize interactive traffic and ACKS

Hi, I have a typical configuration for my firewall/gateway box: single network card, with a pppoe connection to the DSL modem. I''m already successfully shaping the uplink (how come that the wondershaper.htb doesn''t use the ceil parameter? It should implement bandwidth borrowing!) but i found the ingress policy a little bit rough. I''d like to keep the traffic categories

Hello everyone, it is not the first time i discuss this topic here, but now it has come the time to actually do it. My idea is to set up a daemon to run QoS on linux, with a particularity, add some A.I. capabilities to our system and hence, be able to change QoS "topology" every certain time to obtain the maximum performance. I first want to teach the system which parameters should i

Hi, I''ve written a small javascript ADSL throughput calculator: http://nukunuku.yamamaya.is-a-geek.org/~ranma/adsl.html Feel free to submit alternative presets (I currently have presets for three german telecom speed variants: T-DSL (1000|2000|3000), derived from http://www2.lancom.de/kb.nsf/5d445c701b3ff52dc1256e7700297e5c/27c6ee1c3e3f74b0c1256e94004a433e?OpenDocument). Comments,

Hi, I get this error when trying to insmod the ipp2p kernel module: "insmod: error inserting ''ipt_ipp2p.ko'': -1 Invalid module format" in the kernel log: "ipt_ipp2p: disagrees about version of symbol struct_module" Kernel version 2.6.20.4 iptables version: 1.3.5 ipp2p version: 0.8.2 (latest) Anyone tried ipp2p with kernel 2.6.20? Best Regards Niclas

Hello, I have begun to use the tc scripts since 2 weeks ago, so I am beginner. I am trying to divide my bandwidth in 4 independent ones. Each of these sub-bandwidths is assigned to 4 different groups of ip. Bandwidth sharing is allowed. I put a Linux with two Ethernet card between the router and the LAN. Eth1 is the card connected to the router and eth0 is the one connected to the LAN. My ISP

Hi I have to manage a network with approx. 200 users, a 256kbit/s unmanaged Internet connection and a 3Mbit/s unreliable managed Internet connection (only http/ftp-proxy and ssh available). All users are in one Class C Subnet with 512 IP-Addresses. 60% of the machines are Windows. The rest are SUN and Linux. At the moment Windows viruses and p2p-traffic eats most of our bandwidth. My Aims are:

Greetings - I''m new to QoS, so please be gentle (and yes, I''ve RTFM, though I don''t understand every bit of it) Here''s the thing; I''ve tried several scripts--simple and complex--for classifying my Vonage traffic into a high-priority queue, but no matter what I do it doesn''t seem to work. Right now I''m using the HTB script