similar to: Some questions remaining about TC

I notice one other small problem with my modified version of SFQ. The fact that packets can be dropped at dequeue time is incompatible with the way HTB (and probably CBQ and others modeled on it) keep statistics. When I fill a low rate queue causing packets to expire and be dropped at dequeue I get interesting statistics like this: This is my variant of SFQ qdisc plfq 8016: dev eth1 ... Sent

Hi to all of you!!! I am a Computer Science student trying to do the pre-grade thesis. I am trying to develop a free software tool to help administrators to control the traffic. Right now this tool is based on tc and iptables. I am having some problems trying to understand tc and tc examples: - Why in almost every list of tc rules based on htb class, there is a "tc qdisc dev ... root ...

Hello ppl, I''m playing with the pfifo scheduler, its simple, and i cannot understand what''s wrong. So, i have test machine, with one interface eth0, and i want to send no more than 3 packets/sec out of that interface, so i do: tc qdisc add dev eth0 root pfifo limit 3 And i get pfifo scheduler on eth0 with limit of 3, but it sends as many packets per second as it wants, without

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, Is there any grapical interface for the QoS (Quality of Service) Traffic Control in Linux ? Greetings. - --- Carles Xavier Munyoz Baldó carles@descom.es Descom Consulting Telf: +34 965861024 Fax: +34 965861024 http://www.descom.es/ - --- -----BEGIN PGP SIGNATURE----- Version: PGP 6.5.8

Hi everyone, This is on a linux box, ingress (eth1) at 100Mb/s and egress (eth0) at 10Mb/s. The purpose is to test CBQ Here is my script ------------------------------------------------------------------- # Root qdisc tc qdisc add dev eth0 root handle 1:0 cbq bandwidth 9Mbit \ avpkt 1000 cell 8 # Classes tc class add dev eth0 parent 1:0 classid 1:1 cbq bandwidth 9Mbit \ rate 5Mbit weight

Hi, I am a newbie to LARTC and to this mailing-list. I have read through the Linux Advanced Routing & Traffic Control HOWTO many times, trying to understand Classful Queueing Disciplines (and in particular CBQ). I have some suggestions that I think will help to make the HOWTO more understandable. Suggestions ========= (1) In section 9.4 (Terminology) the definition for

If I create a cbq qdisc as a leaf of a cbq class, the bandwith rate is the same of the root cbq qdisc or the rate of the cbq class? Does exist the parameter rate on the "tc qdisc add" for cbq command? tc qdisc add dev eth0 root handle 1:0 cbq bandwidth 10mbit avpkt 1000 cell 8 tc class add dev eth0 parent 1:0 classid 1:3 cbq bandwidth 10mbit rate 50kbit allot 1514 cell 8

Hi I''m completely stuck with the tcng language - I assume there must be some way to arrange queues hierachically like eth1 | TBF | PRIO / \ class class but my attempt (below) produces a "inferno.tc:8: qdisc "tbf" has no classes near "prio"" when run through tcc. dev eth1 { egress { tbf (rate 128kbps, burst 64kb,

Hi all, I''m having a hell of a time getting my IFB to work. I know I''ve done this before, so I''m missing something stupid. Can anybody tell me what it might be? Configs as follows: -------- #!/bin/sh modprobe ifb numifbs=1000 modprobe act_mirred modprobe 8021q brctl addbr br0 brctl setfd br0 0 brctl stp br0 off brctl addif br0 eth1 brctl addif br0 eth2 ifconfig eth1

Hello, Besides a very good functionality, I have a small, yet stressing, problem. Let''s say I have a bandwidth of N bits. I have X clients, everyone with his fixed bandwidth. I create htb qdsics for each client. Each leaf has sfq queueing discipline. A sample config would be like this : tc class add dev eth0 parent 1:2 classid 1:346 htb rate 32Kbit ceil 32Kbit burst 4k

Hello there, Having made quite a lot of expensive mistakes i have finally clobbered together a script for the users on my network. Have a look at it and please suggest as to how can i limit bandwidth to each ip on this network to about 64Kbits. Trevor -- ( >- GNU/LINUX, It''s all about CHOICE -< ) /~\ __ trevor@clovertechnologies.com __ /~\ | \) / Pre Sales

The manual says (about prio): > Because it doesn''t actually shape, the same warning as for SFQ holds: > either use it only if your physical link is really full or wrap it > inside a classful qdisc that does shape. The latter holds for almost all > cable modems and DSL devices. I want to wrap prio inside of tbf. Here''s why: I have a server on a DSL line, which has

Hi Stef, Reffering to page < http://www.docum.org/stef.coene/qos/faq/cache/7.html > I found a para as follows, " CBQ is not always as accurate as it should be. See docum.org on the test page for some tests with bounded classes. The algorithm used by cbq is very "link sensitive". It calculates the link idle time and for that it needs the real link bandwidth, average

Hi! I really need help with a u32 filter that won''t match what I think I''m telling it to. The situation is that I have set up an internal computer to change the TOS value of packets sent by certain processes to 0x1E (If anyone known of a better way to mark packets, please tell me. I would love to find some module that adds an IP option with UIDs and GIDs to the packets - does

tc qdisc add dev eth0 root sfq perturb 10 I want to set perturb to 8 then i used this tc qdisc add dev eth0 root sfq perturb 8 system give me the following message RTNETLINK file exists I delete the rule by this :"tc qdisc del dev eth0 root sfq perturb 10" please tell me how can i delete the rule by another way and where is "RTNETLINK file"

Hello lartc, Q1: If I want select subhet, I wrote ...u32 match ip dst a.d.r.es/net police ... How I can say "all except z.x.y" ? Both src/dest addr/port - I foundn''t this info in HOWTO :((( Q2: Why I can''t (or not allowed) to create more then one class into !ingress! queue? I know, it''s incoming trafic? but why? it''s look simply: (yes, i may be

For a root-qdisc, can the bandwidth be smaller than the bandwidth of the device？ _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

How to do ensure a class not lended and not borrowed each other. I do cburst burst 0b ,but ctokens tokens go to negative! --------------------------------- Do You Yahoo!? "更多惊喜，同样精彩，NetVista A30 热卖" --0-611462377-1048485942=:33792 Content-Type: text/html; charset=gb2312 Content-Transfer-Encoding: 8bit <P>How to do ensure a class not lended and not borrowed each

hi all, Iam using the following CBQs to limit the FTP bandwidth pease tell what changes are rquired to make it work.... tc qdisc del dev eth0 root tc qdisc add dev eth0 root handle 1:0 cbq allot 1514 avpkt 1000 bandwidth 100Mbit tc class add dev eth0 parent 1:0 classid 1:1 cbq allot 1514 bandwidth 100Mbit rate .4Mbit weight .4 prio 2 maxburst 20 cell 8 avpkt 1000 tc class add dev eth0

Hello, I''m using tc to limit the bandwidth of our wireless customers. I have a working script, but I''m not happy with it. I''m trying to write a more sophisticated script, but when I run it, it give me this error: RTNETLINK answers: File exists I have no idea what this error means or how to fix it. Here is a portion of the script (the whole script shapes several