LARTC - Jul 2007 - bandwith limiting and prio classes

Hello,

I''d like to build a 4 class prio system based on mark (until now no
problem), but with a limited bandwidth. I have configured my eth* to be
10mbit full duplex, and I''d like to limit  the bandwidth to 1mbit. I
managed to do it with a policy filter matching all the traffic, but I
can redirect it into only one class, so all my prio classes are useless.
I also tried to limit the bandwidth with a cbq, but I must have missed
something because whatever arguments I passed to it, it didn''t limit
the
bandwith. How else can I do ?

Thank you in advance,
-- 
Elie Roux

Salim S I <salim.si@cipherium.com.tw> a écrit :
> Use an HTB/CBQ class at the top with 1mbit limit. (HTB is easier).
> Direct all traffic to this class. You do not need to use mark here.
> Fit your four PRIO classes under the HTB class, if you want, and filter
> traffic based on marks.
Ok, I tried it (with a tbf), now my bandwidth is well limitated, but  
my filters doesn''t seem to work, all the packets go in 400: . Here is  
my script :

tc qdisc add dev eth2 root handle 1:0 tbf rate 1mbit buffer 1600 limit 10000
tc qdisc add dev eth2 parent 1:0 handle 10: prio bands 4 priomap 3 3 3  
3 3 3 3 3 3 3 3 3 3 3 3 3
tc qdisc add dev eth2 parent 10:1 handle 100: sfq
tc qdisc add dev eth2 parent 10:2 handle 200: sfq
tc qdisc add dev eth2 parent 10:3 handle 300: sfq
tc qdisc add dev eth2 parent 10:4 handle 400: sfq
tc filter add dev eth2 parent 10: prio 1 protocol ip handle 0x1 fw flowid 100:
tc filter add dev eth2 parent 10: prio 2 protocol ip handle 0x2 fw flowid 200:
tc filter add dev eth2 parent 10: prio 3 protocol ip handle 0x3 fw flowid 300:

I''ve tried to replace parent 10: by parent 1:, but it makes an error  
(very explicit, like all the tc errors).

Thank you in advance,
-- 
Elie

> I''ve tried to replace parent 10: by parent 1:, but it makes an
error
> (very explicit, like all the tc errors).
Sorry, it now works, I had to replace flowid 100: by flowid 10:1.

Thank you,
-- 
Elie