similar to: wfq scripts needed help

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

I want to set the DSCP field of the incoming packets. And then put them in the correct queues. I can mark the packets: iptables -A OUTPUT -t mangle -d 10.10.10.12 -j MARK --set-mark 1 tc qdisc add dev eth0 handle 1:0 dsmark indices 64 set_tc_index tc class change dev eth0 classid 1:1 dsmark mask 0x3 value 0xb8 tc filter add dev eth0 parent 1:1 protocol ip prio 1 handle 1 fw

Hi folks I have created a script file (dsmark+policing.sh attached) to check graphic an text outputs of simutations, against original examples/dsmark+policing coding (see TCNG Reference Manual-pg.90). It uses tcng coding (*.tcsim file attached) and old tc coding (*.tcsim_old file attached) inserted in tcsim files. Observation 1: The graphic outputs from (*.tc included in *.tcsim) and (*.tc_old

Hi, I am trying to get assured forwarding/expedited forwarding with gred and htb working. Below is the script I am using. The following steps are what I thing is how the script works. My problem is that if I remove the HTB qdisc from the script and have the GREDS parent as the dsmark it works, but when I add the htb as a parent of GRED and DSmark the parent of htb it does not work? Any

Hello, I have the following proplem. My DiffServ configuration is working fine when I do ping, but when I use mgen the packets are not detected at the core router. Here is my core router configuration: #!/bin/bash tc qdisc add dev eth1 handle 1:0 root dsmark indices 64 set_tc_index tc filter add dev eth1 parent 1:0 protocol ip prio 1 tcindex mask 0xfc shift 2 tc qdisc add dev eth1 parent

hi all i am a new commer of linux community. i want to how does skb->tcindex value change exactly. it confused me indeed. i have a script reads: (1) tc qdisc add dev eth0 root handle 1:0 dsmark indices 64 default_index 0x161 set_tc_index (2) tc filter add dev eth0 parent 1:0 protocol all prio 1 tcindex mask 0xfc shift 2 pass_on (3) tc filter add dev eth0 parent 1:0 prio 1 handle 0x0a

Hi, I want to setup core routers to do both DSCP marking and to get the DSCP and forward packets based on DS field. I don''t want to separate DSCP marking to be done only at the edge routers. I know that dsmark is both used for DSCP marking and for getting the DSCP and forwarding packets according to DSCPs. In my case, since I want to do both of these I need two dsmarks.(?) I am not

Hello all, Please could someone help me with this, I have been trying for days to get this to work. I would like to have BE, AF & EF classes with HTB qdisc. I can''t find any scripts online where this has been done. If I enable this filter: #tc filter add dev eth0 parent 2:0 protocol ip prio 1 \ #tcindex mask 0xf0 shift 4 pass_on then BE & AF classification seems to be fine but

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 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

Im using a Linux machine with standard pc hardware with 3 seperate PCI network interfaces to operate as a DiffServ core router using Linux traffic control. The machine is a P4 2.8ghz, 512mb RAM running fedora core 3 with the 2.6.12.3 kernel. All links and network interfaces are full duplex fast ethernet. IP forwarding is enabled in the kernel. All hosts on the network have their time sychronised

I ''ve been trynig for a long time now to make HTB and GRED to work togethen. The problem beeing that GRED doesn''t use handles (instead it uses DP:1 DP:2 etc) i can not preperly filter traffic to them. Tomas Graf suggested to use the tc_index index of u32 classifier so dear Sant .. i am currently with the following scripts that works! But when i try to add an HTB before the

All: I am tasked with creating an environment in which DiffServ and IP precedence is handled as close to RFC specification as possible. I have a few problems with implementing this based on current queueing structure. Here are a few of my questions. 1.) Is there any way to get DiffServ AF drop levels without using DSMARK and GRED? Ex. AF11 Gred DP 1 AF12 Gred DP 2 AF13 Gred DP 3 2.)

Hi stef and all I want measure the policy perfomance for video traffic on mpls diffserv network. there are two different polices for video packet 1. Video packets that are marked that are over the limit are to be rejected at the edge router. 2. Video packets that are marked that are over the limit are to be downgraded as best effort and are sent through. Before video enter my mpls

Hi. I did send this to `jaazz@post.cz'', but I suspect the list is a more appropriate/useful place for it. It''s a question about Michal Charvat''s QoS extension to Net-SNMP. When I look at the MIB entries for the QoS handles, I get something like this - enterprises.qos.qosObjectTable.qosObject.qosHandle.0.0 = Gauge32: 0

Newbie here... tcng version 10b I''m just learning about htb and using tcng. I am trying to make the example in Martin A. Brown''s Traffic Control with tcng and HTB HOWTO v0.5 example 2 /* * Simply commented example of a tcng traffic control file. * * Martin A. Brown <mabrown@securepipe.com> * * Example: Using class selection path. * * (If you are reading the

hi all, i''m having problems building a module from my tcng configuration file. could someone verify the syntax for building a kernel module? i did it as shown below ... module gets built but i cannot load it. thanks charles ps -- sorry, don''t know c++ :-) [root]# cat /etc/tcng.test #define LAN "eth0" #define LAN_INGRESS 750000 #define LAN_EGRESS 750000 dev

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, I was searching for few days in this mailing list but I didn''t find how to solve my tc problem. Feel free to ask me more details if you think there are relevant. I''m using a Gentoo 2.4.32-gentoo-r2 and I''m trying to test a *weighted fair queuing* (WFQ) implementation. See http://home.sch.bme.hu/~tusi/wfq/ I patched

Hi I am encountering what I suspect to be a bug in the kernel processing of tc netlink messages: I am using kernel version 2.4.9 with iproute2-current-001007 package. Everything works fine in the kernel. Now I open a netlink socket with a user process, read the tc netlink messages generated by the tc process and parse them. What I see is that the kernel has already processed the messages

Hello all. We have three tunnels over the internet between our "central" gateway and some branch office gateway. Each gateway has eth0 on its LAN an eth1 on the internet. We use DSL lines and eth1''s have the internet IP directly attached on it. Each gateway, also, acts as iptables NAT gateway. The outgoing bandwith is 300 kbit, and we tried this (i.e.) on each tunnel: tc