similar to: HTB vs CBQ - is meaning of prio param the same?

Hi, I''m work on traffic shaping and I would like to know if it''s possible to mix differents Queueing Disciplines ?? I would like to combine the proporties of a PRIO discipline with that of a CBQ discipline. I read some documentation and I found nothing about that, can you help me ? I think to try something like that : tc qdisc add dev $DEV root handle 1: cbq … tc class add dev

Hi, I have been modifying the Wonder shaper to include another queue. My understanding was packets would be de queued to hardware in the following order: cbq1 -> sfq10 > sfq20 > sfq30. Also we only move onto the next queue when the preceding one is empty. However is seems to be prio xx number that reflects the order packets are de queued not to what flowid they belong to. If I

Hello all. I''ve been struggling to QoS VoIP at our site and have a successful implementation at this point. Basically I had to set aside enough bandwidth for VoIP by placing all other traffic behind an HTB (multiple classes and queues behind it). Everything is fine. Here''s the diagram: ------- | eth | ------- | --------

I would like to implement an architecture to support LLQ and WFQ with Qos linux elements ! Is possible use CBQ (you can set same parameters to control WRR process) or HTB (how can i controll DRR process) structure ? My idea is to classify packets by List flows, tos flows or connections flows (as CBWFQ on CISCO ) I saw also for WRR patch (http://www.zz9.dk/wrr), but I don''t understand

Hi Stef and Alexey I have read some documents about CBQ algorithm from http://www.icir.org/floyd/cbq.html but still have some question about CBQ in Linux . 1. First estimator can estimate how much bandwidth already USED per class. one estimating algorithm is EWMA (exponential weighted moving average), how about Linux implemenatation about estimator? also do you have link for this algorithm? I

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

Hello Everyone :), i''m using cbq.init version 7.1 for traffic shaper, the rule did work well with flat rule (without parent/child)..here the condition of my network : - have a DMZ (and i not want the traffic to DMZ be bounded) - i made the CBQ engine also a bridge and i put it before NAT server (so if

Hello all, I am testing CBQ and HTB these days and I got a lots problem which needs your help. It is a little long text :) Thank you! (All my test is based on Redhat Linux9.0) 1.Is isolated of CBQ working? I have read Mr. stef word that he never made cbq isolated work. 2. I have setup an environment to test cbq: one tcp flow which I should protect and a noisy udp flow who will eat much of the

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, all, according to the following HTML, http://lartc.org/howto/lartc.qdisc.classful.html section 9.5.3.1. PRIO parameters & usage: it says: "If you do not provide tc filters to classify traffic, the PRIO qdisc looks at the TC_PRIO priority to decide how to enqueue traffic." So my understanding is that the Priomap will be consulted to classify the packet. However, I see the

Hi i have configured my server with cbq and gred. The problem is that the cbq doesnt drop packets. The cbq is configured at a rate of 500Kbit "qdisc cbq 4: rate 500000bit (bounded,isolated) prio no-transmit Sent 100103048 bytes 73933 pkts (dropped 0, overlimits 0) borrowed 0 overactions 0 avgidle 24000 undertime 0 " The traffic that being generated is more than 5Mbit with the

I need to shape traffic from some IP on one LAN, but I''m in trouble. There is a linux 2.4.26 connected to the Internet (eth0) / LAN(eth1) doing NAT. I''m using VLANs in the LAN Interface, that is connected to a 3Com SuperStack II in a 802.1Q tagged port. I want to create a class that will limit the traffic at 384Kbit/s. I want to create two leaf classes that limit the traffic at

Hi, In my LAN Iam trying to make following setup: - All the traffic generated by 10.0.2.1 should go to 10.0.2.11, If the destination of this traffic is internet than it should be placed on its interface eth1. Outgoing traffic on eth1 should be shaped.For this I am using fw filters and cbq. _______ 10.0.2.1 -------> 10.0.2.11(eth0 )----| A

Hello, I'm usign Kernel 2.2.19 with ext3 0.0.7b patches. I'm also using cbq to control bandwidth. The cbq is correctly creating the classes and queueing disciplines but, whenever I call cbq stop I get a kernel panic: > Aiee, killing interrupt handler > Kernel panic: Attempted to kill idle task! > In interrupt handler - not syncing The exact line in cbq script that is

How can it be, that class 1:3 in my case borrows, when all sibling classes are isolated ? nessus:~# tc -s -d class show dev eth1 class cbq 1: root rate 100Mbit cell 8b (bounded,isolated) prio no-transmit/8 weight 100Mbit allot 1514b level 2 ewma 5 avpkt 1000b maxidle 1us Sent 484 bytes 7 pkts (dropped 0, overlimits 0) borrowed 0 overactions 0 avgidle 77 undertime 0 class cbq 1:1 parent 1:

Hi Iam using the script below to limit usage for the computers on my lan with respect to download and upload I have a 256kb up and 256 kb down connection, I want limit the speed of each computer to 64kbyte down and 32 up as a maximum. The script below works however it limits the up and down of the whole specified network to 64/32 ... what do I have to edit so that the script handles the requests

Hi Iam using the script below to limit usage for the computers on my lan with respect to download and upload I have a 256kb up and 256 kb down connection, I want limit the speed of each computer to 64kbyte down and 32 up as a maximum. The script below works however it limits the up and down of the whole specified network to 64/32 ... what do I have to edit so that the script handles the requests

Hello, I think I have misundertood the relationship between cbq and the queue (such as Red) attached to it. This is my latest opion, please give me some advice on it: At beginning, I thought that a packet will be firstly classified by the CBQ where it will find the proper class it belongs to. Then the packet enters the queue attached to that class. At last, the packet is scheduled in that

Hi. I want to shape traffic from some IPs in my lan, but I''m w/ trouble. I have a linux box connected to the Internet. In the other side of this box is my LAN. I want to create the following scenario: My root qdisc is attached to a 100Mbit/s NIC I want to create a class attached to this qdisc that will limit the traffic at 384Kbit/s. I want to create two leaf classes that limits

muy buenas! acabo de empezar con linux y me he embarcau en un proyecto que = me queda un poco grande y que tengo que entregar dentro de poco... el caso es que quiero hacer funcionar el cbq.init y no puedo (el cbq.init es un script para controlar el ancho de banda de tu red). el caso es que tengo un debian woody 3.0 con el kernel 2.4, puestos todos los modulos de QoS e instalado el iproute.