On Wednesday 09 April 2003 20:06, Allan Gee wrote:
> Hi Stef,
> Sorry to write to you directly but my list membership is not working, I
> receive the archive but cant send to the list, cant delete myself because I
> don't exist and can't rejoin as they say I do exist, anyway hope you don't
> mind
>
> Can you tell me what the difference between these two scripts is please.
Sorry it took so long to formulate an answer. It' was a busy week for me.
> What I want to achieve is a high speed channel 1000kbit from port 3000 from
> an application running on the box doing the shaping, while shaping the
> traffic at 64kbit going thru the box to the network, WITHOUT affecting the
> small 64kbit bandwidth.
>
> In EXAMPLE 1 ALL traffic goes thru 1:1 but does not seem to affect the slow
> channels 1:2,1:3 and 1:4
> In EXAMPLE 2 the port 3000 traffic only goes thru 1:998 and 1:997 but it
> shows "lended" packets in the "tc stats"
> My feeling is EXAMPLE 2 is the right way but I would like your input
You need to do something like this :
root htb qdisc
class 1:1 with rate = ceil = 1000 + 64 = 1046
class 1:2 with rate = 1000, ceil = 1064
class 1:3 with rate = 64, ceil = 64
If you want to control the 64 kbit more, you have to attach the classes to
1:3. Giving class 1:2 a ceil of 1064, allows it to borrow the unused
bandwidth of class 1:3. You also have to give class 1:3 a ceil of 64, so you
never send more data then your link cna handle.
I also have some comments on your scripts :
> tc class add dev eth0 parent 1: classid 1:998 htb rate 1000kbit
> tc qdisc add dev eth0 parent 1:998 handle 1998: sfq perturb 10
The added sfq will removed as soone as you execute the foloowing command.
> tc class add dev eth0 parent 1:998 classid 1:997 htb rate 1000kbit ceil
> 1000kbit prio 0 quantum 15140
> tc filter add dev eth0 protocol ip parent 1:0 prio 1 u32 match ip sport
> 3000 0xffff flowid 1:997
> EXAMPLE 2:
> tc qdisc del dev eth0 root handle 1: htb default 999
> tc qdisc add dev eth0 root handle 1: htb default 999 r2q 1
> tc class add dev eth0 parent 1: classid 1:1 htb rate 64kbit
> tc class add dev eth0 parent 1:1 classid 1:5 htb rate 1000kbit ceil
> 1000kbit prio 0 quantum 15140
> tc class add dev eth0 parent 1:5 classid 1:6 htb rate 1000kbit ceil
> 1000kbit prio 0 quantum 15140
Why are you doing this ???
Stef
--
stef.coene@xxxxxxxxx
"Using Linux as bandwidth manager"
http://www.docum.org/
#lartc @ irc.oftc.net
