similar to: Shaper & prio qdisc

Hi, I''m trying to use prio qdisc with htb, however not the "usual" way (like for example FairNAT). Here is my idea: Root has HTB shaping traffic to link speed -> then goes PRIO queues -> each prio queue has HTB with sublasses for each user, should look like this: 1: htb qdisc | 1:1 htb class

Hello mailing list, i stand bevor a mystery and cannot explain it J. I want to do shaping and prioritization and I have done these following configurations and simulations. I can´t explain, that the combination of PRIO and TBF is much better than the HTB (with the prio parameter) alone or in combination with the SFQ. Here are my example configurations: 2 Traffic Classes http (80 = 0x50) and

Hello, I''m still new in using tc...I wanna ask... 1. what is the difference between classless and classful qdisc?? when I made a qdisc, are I must create both of that qdisc...??? 2. what is the difference beetween three of the classless qdisc in linux redhat 2.4, sfq pfifo and tbf if I using the htb classful qdisc ??? because when I use htb classful qdisc it means I made a qdisc that

Hi all, I am trying to implement a new qdisc, but I''m having trouble. Here''s what I''ve done: I''ve copied the TBF source into a new file, and modified it to represent my new qdisc. Then added it to the default qdiscs in the Makefile. I modified the header files include/net/pkt_sched.h and include/linux/pkt_sched.h to reflect my new qdisc. The kernel

Hi I have now my outgoing traffic shaped whith root qdisc htb (where i configure basic rate) and tc prio (as a leaf with 4 classes) where i can set priority of different kinds of traffic. It works but htb is work-conserving so packets are only delayed (when the rate is exceeded), while i want them dropped. In the case when rate is exceeded i want to drop packets with priority set to 4, then if

Hi, Having issues getting a replace command working correctly. The error reported is "RTNETLINK answers: Invalid argument" which isn''t descriptive or helpful. The command i''m running is: tc qdisc replace dev ppp0 parent 8001:D handle D: tbf rate 5Kbit burst 5kb latency 70ms The idea being to replace an sfq with handle D and hopefully limit a certain user in my

Im experimenting with using a Linux machine with 3 interfaces to operate as a core router. All links and network interfaces are 100mbit. Below is a ascii diagram of the network. (network A) edge router ------>core router---->edge router (network C) ^ | | edge router (network B) I have tried two

hi to all, I''m studying traffic shaping using kernel 2.6.8 (debian sarge). well, I have this problem: priority doesn''t work. I try with: - qdisc prio: tc qdisc add dev eth1 root handle 12: prio bands 3 tc qdisc add dev eth1 parent 12:1 handle 13: tbf rate 10Mbit buffer 1600 limit 3000

Hi, all I am interested in Linux related QoS, especially PRIO queue discipline (qdisc). I test some experiments about PRIO qdisc. Host A ------ Router A --- Router B --- Host C | 1Gbps | Host B ---------+ +-------- Host D flow 1 : Host A -> Host C (TCP) flow 2 : Host B -> Host D (UDP) priority 1 queue (pfifo, size 1000 packets ) : flow 1 priority 2

http://ds9a.nl/lartc/manpages I finished some more manpages, and improved others. New are tc-tbf.8, tc-sfq.8, tc-prio.8 and tc-red.8. Please check & use them. http://ds9a.nl/lartc/manpages -- http://www.PowerDNS.com Versatile DNS Software & Services Trilab The Technology People Netherlabs BV / Rent-a-Nerd.nl -

Hell I''m new to Qdisc programming and I was wondering, what is the difference between using an internal Qdisc (like e.g. TBF does) vs. not using internal Qdisc (like e.g. SFQ does)? Can someone give me a quick rundown of pro and cons? with regards R.harper _________________________________________________________________ Undgå pop-ups med MSN Toolbar - http://toolbar.msn.dk hent den

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

There is an design problem with the qdisc interface that causes qlen related bugs in netem, tbf, and other qdisc''s that peek at the top of the queue. The problem is that requeue needs to be called from the dequeue function but requeue can fail. If requeue fails, then the calling qdisc can not properly handle the error. If it returns NULL, then the parent''s expectation about qlen

Hi! I was updated kernel from 2.4.22 to 2.4.23 and now tc tools can''t correctly determine default (pfifo_fast) qdisc on interface: # tc/tc qdisc ls dev ppp0 qdisc pfifo_fast 0: [Unknown qdisc, optlen=20] but, if I assign f.e. cbq qdisc for some device all show correctly: # tc/tc qdisc ls dev ppp1 qdisc tbf 8009: rate 32Kbit burst 10Kb lat 1.5s qdisc cbq 66: rate 10Mbit

I thought I had this all worked out, but it seems not. The following tc configuration: tc qdisc del dev ppp0 root 2> /dev/null > /dev/null tc qdisc add dev ppp0 root handle 1: tbf rate 120kbit burst 1200 limit 1 tc qdisc add dev ppp0 parent 1:1 handle 2: prio bands 3 tc qdisc add dev ppp0 parent 2:1 handle 10: sfq perturb 20 tc qdisc add dev ppp0 parent 2:2 handle 20: sfq perturb 20 tc

Saw this command on slashdot (http://ask.slashdot.org/article.pl?sid=04/03/24/0434224&mode=flat&tid=126&tid=95 ) to basically make a box behave like a managed switch: "tc qdisc add dev eth1 root tbf rate 250kbit latency 20ms burst 2kb" Followup:

Hi to all! I''m studying qdisc prio but I have some problems. I want to create 3 queue (3 bands prio), each one associated to a workstation. I mark (with iptables) packets using workstation mac address and then send all packets in a particular queue. qdisc prio with handle 10: (default priomap) WS1 -> queue 10:1 WS2 -> queue 10:2 WS3 -> queue 10:3 I set it correctly (with

Hi, I am attaching the patch for tc_class.c file in ./tc directory of iproute2 lastest version. This patch is to avoid segfault when listing classes. It happends only when using PRIO qdisc. I didn''t look why exactly it segfaults (guess becasue PRIO is classless), but this patch at least prevents it, so you can run the command and look what is happening to other classes. cd to iproute2

hello all, I was trying out the various queueing disciplines and i have problems with this basic one: Simple 3-bands Priority Scheduler --> sch_prio.c how i implemented it: #########START########## tc qdisc add dev eth1 root handle 1: prio tc filter add dev eth1 parent 1:0 prio 5 protocol ip u32 tc filter add dev eth1 parent 1:0 prio 5 protocol ip u32 tc filter add dev eth1 parent 1:0

Hi, I''m trying to set up 15 different delay intervals for packets leaving on an interface, using netems hanging off of a 16-band prio. I''m having trouble adding anything to bands higher than 10. Here''s what I tried: tc qdisc add dev eth0 root handle 1: prio bands 16 \ priomap 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 I want all default traffic to go to