similar to: How to limit bandwidth in iptables -- HELP

Hello all, Can anyone recommend a good book which thoroughly explains QoS from a Linux perspective? Something with TC examples & the like. I''ve looked at the following: http://www.amazon.com/gp/product/1580533418/qid=1148368189/sr=1-2/ref=sr_1_2/102-2819973-6353768?s=books&v=glance&n=283155 Engineering Internet QoS. Thanks.

Hello everybody, I am new to the lartc mailing list. I have been using "tc" for some time now. To be precise, tc & HTB to shape traffic. I did a lot of search on Google for 2 things: - A GUI to create configure new qdiscs & classes for HTB - A utility that will graph the data sent through all configured classes or qdiscs. I could not find anything. Could someone tell me if a

Hi. I''m trying to get a traffic shaper like this: ------ VoIP pkts --> | |_| ------ \ | ---O -> ------ / Data pkts --> | ------ In this shaper voip packets are in a different queue than any other kind of packet. I want a data packet to be

Hi! I am learning tcng without having experiance of tc and I am trying to build something that shall schedule traffic dependent on the value in the IPv4 packets ip_ttl field. I have read the tcng reference manual and cannot find information about forwarding. Is it possible to farward packets from ingress to egress without sending them upwards in layers?

Hi, I''m a complete newbie at this traffic shaping / QoS stuff so please excuse me if this is a silly question. I''ve searched and searched on Google and I just end up confusing myself even more, so I thought I''d post my question to this list and see whether someone can help me! Basically, I am running a Linux box as a NAT router on my home network (machine name marvin).

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, i''ve been working on VoIP qos in the few weeks. I shape IAX2 and SIP, and i''m getting some interesting results. Im using HTB, the line is 512Kbps dedicated line, and we have some servers on the same line that generate quite a lot of traffic, frequently saturating the link. I''ve read through LARTC how to, example, etc,

hi i ve seen one of your replies here and i saw that you receomend 2 modifications in the kernel files in order to improve htb. first in pkt_sched.h, changing PSCHED_JIFFIES to PSCHED_CPU. and then, sch_htb.c, changing HYSTERESIS from 1 to 0. is it that simple? i mean i just change these here variables and i get better results? i ve done a search and found the first file in 3 locations. where

Hi, A thought for the list. As I mentioned in another posting, there are a lot of QoS mechanisms out there. Linux supports some, but not all. Some patchsets add others, but don''t work for all kernels. There are also userland implementations, usually sitting in software routers, but there are other packages. Would it be helpful if I worked on a table of what''s out there for

Hi, We have a 256 kbits/s (kilobits per second) link to the internet. it is a router running Linux that belongs to our ISP. They have given us 8 internet ips. (i.e- subnet is 255.255.255.248). one has been given to this router. I have given another internet ip to the firewall running CentOS 4.5. iptables is running on it. And also, I have installed iproute2 pkg as well. pls see below for

Anybody knows about one bandwidth meter to use in Bering. This is a script i built, it''s works wel, but it''s not very nice!!! =P #!/bin/bash # Bandwidth Monitor device=eth0 bytes=`grep $device /proc/net/dev | cut -f 2 -d : | cut -d '' '' -f 2` kbytes=`expr $bytes / 1024` actual=$kbytes i=1 x=0 total=0 while [ $i -le 2 ] do x=`expr $x + 1`

Hi, I have implemented QOS classifiers using TC with HTB. The classification is working. I would like to know whether there is some tool which will help me in monitoring the bandwidth share of the various classes. Thanks, Vinod C

Hi all, I''ve not been able to find an explanation of the relationship between prio and rate as they apply to the HTB technique. Hopefully someone on here will be able to help me. As I understand things, when prio values are assigned to an HTB setup, classes with a given prio value will only be serviced when there are no packets waiting in classes with a lower prio value. Now, does

Hi gang, I have an application that is sending streaming media to a server. The encoder computer sends an average of 200kbit stream; but for short, 1 second bursts, can hit 400-500kbits. After it does one of these bursts, it reduces its output for another second or two, so that it maintains its average of 200kbits. The problem is that it is sending UDP packets into a DSL link that has a fixed

Hi iam looking to graph the tc classes and qdisc iam trying to access the stef scripts but its site is totally broken could some one point me where i can graph using good docs hare

I reported this previously and it was verified. Is this a bug in netlink or what? Who should I report this to? Original Oops report: http://mailman.ds9a.nl/pipermail/lartc/2004q2/012614.html Thanks. Linux rebecca 2.6.4 #1 Mon Sep 27 15:16:48 EDT 2004 i686 GNU/Linux Sep 27 19:02:58 rebecca kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000000 Sep 27 19:02:58

Hi can anybody tell me what is the best and right way to gather statistics from htb.init usage in graphics or in any other format cause it''s pretty uncomfortable to view statistics in text when you''ve got 4 interfaces and enough filters and queues Thank you ! Dzmitryj Jakavuk

I had been using L7-Filter[1] successfully for edonkey/eMule traffic until recently. I upgraded to the latest release of mldonkey, 2.5.28a, which implements eMule compatibility, and with support for Kademlia[2] enabled, network latency increases greatly. [1] http://l7-filter.sourceforge.net/ [2] http://www.infoanarchy.org/wiki/wiki.pl?Kademlia Has anyone created a new pattern match for

Hello, I setup iproute2 and iptables on my box, is a P4 2000 Ghz / 1GB memory. I have setup squid and iptables to be a transparent proxy, with cache. I''ve read on lartc.org almost everything and i want to ask if there is a u32 match for the connection time or something like that, or an u32 match for the packet number in a connection. All i want to do is shape the web traffic for long

I wrote a Perl script to poll `tc` for traffic control statistics (just bytes presently) for leaf qdiscs. The information is fed to either RRDTool or Munin[2], depending on what parameter is passed to the script. If the option for a RRD database is used, graphs[3][4] are written to disk for each ten second polling interval. If invoked via Munin[2], it handles graphing and samples at five

Hello all, We have two ADSL lines configured on a single box, hence interfaces ppp0 & ppp1. Is there a way to route packets to ppp0, say based on destination port 80 & other traffic like voice through ppp1? Thanks.