Thanks Alexis!
So you are saying to me that it's better use TC instead of TCNG, i'll try your idea thanks again!
Alexis wrote:
First you need to mark the packet, mark is on the mangle table. L7 is a match condition, so, in order to mark the packets this could be an example
Suppose eth0 as lan int and eth1 as wan and the linux box forwarding between those interfaces
The example to mark a packet, lets say with a pattern called bla1
iptables -t mangle -A POSTROUTING -m layer7 --l7proto bla1 -j MARK --set-mark 55
Now, you’ve marked all packets with the pattern defined as bla1 in /etc/protocols
So, you must classify those packets.
First create the qdisc
tc disc add dev eth1 root handle 1: htb default 99
Now you must create the root htb class
tc class add dev eth1 parent 1: classid 1:1 htb rate 100kbps ceil 100kbps
Now the class for your marked traffic with 90kbps of bw
tc class add dev eth1 parent 1:1 classid 1:10 htb rate 90kbps ceil 90kbps
Now the default class for other non marked traffic
tc class add dev eth1 parent 1:1 classid 1:99 htb rate 10kbps ceil 10kbps
Now you must apply the filters to assing traffic to the classes
tc filter add dev eth1 protocol ip parent 1: prio 0 handle 55 fw flowid 1:10
And now, not mandatory but a good idea, add some discipline to the htb classes (defaults are pfifo, but I prefer sfq)
tc qdisc add dev eth1 parent 1:10 handle 10: sfq perturb 10 tc qdisc add dev eth1 parent 1:99 handle 10: sfq perturb 10
And that’s it. Now try to generate some traffic and use tc -s -d class show dev eth1 and check for the results.
This example is very basic but I think it can help.
Regards
-----Mensaje original----- De: lartc-admin@xxxxxxxxxxxxxxx [mailto:lartc-admin@xxxxxxxxxxxxxxx] En nombre de Tiago Bruno Espírito Santo Silva Enviado el: Domingo, 10 de Octubre de 2004 7:40 Para: lartc@xxxxxxxxxxxxxxx Asunto: Use l7-filter in/and TCNG.
Hello every one!
I'm making a project to a discipline in the university and the project is make a Linux router that grants QoS to Multimedia connections (the prof. say we can use Open Source Soft. :) or reinvent the wheel). I have been googeling and googeling and i found the l7-filter in source forge and the spectacular simple language that is TCNG. Well the problem is how can i mark packets with netfilter and l7-filter and after that make my HTBs with TCNG. I have read the how to from TCNG (my English is not at 100%) and i see the external program declaration but i think thats not it that i want! In the l7-filter project they talk about TC but TCNG it much more simpler! Can some one help me? (if there are any post in this mailing list about this matter, please give me the link i couldn't find it :( )
Thanks in advance
Tiago.
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