[LARTC] CBQ and prio problem

[LARTC] CBQ and prio problem

[MR]

Hi,
 I'm trying to configure a Linux machine to act as a "DS router" (ie it 
should manage differents priorities based on the TOS field) and as a traffic 
shaper too (let's say 800Kbit of 10Mbit). 
I've used the following commands but i wasn't able to shape the outgoing 
traffic (the prio works fine).

Thanks in advance for any idea,
 Max

#!/bin/sh

TC="/usr/sbin/stc"
DEVICE="eth0"
total="10Mbit"

$TC qdisc add dev $DEVICE root handle 1: cbq bandwidth $total avpkt 1000 \
cell 8

$TC class add dev $DEVICE parent 1:0 classid 1:1 cbq bandwidth $total \
    rate 800Kbit allot 1514 avpkt 1000 weight 80Kbit prio 8 maxburst 20 \
    mpu 64 bounded

$TC qdisc add dev $DEVICE parent 1:1 handle 100: prio bands 3 priomap 2 1 0

$TC qdisc add dev $DEVICE parent 100:1 tbf rate 10Mbit burst 10Mbit \
limit 10Mbit
$TC qdisc add dev $DEVICE parent 100:2 tbf rate 10Mbit burst 10Mbit \
limit 10Mbit
$TC qdisc add dev $DEVICE parent 100:3 tbf rate 10Mbit burst 10Mbit \
limit 10Mbit


#############FILTERS############

$TC filter add dev $DEVICE parent 1:0 prio 1 \
        protocol ip u32 \
        match u32 0x00200000 0x00FC0000 at 0 \
        flowid 100:1

$TC filter add dev $DEVICE parent 1:0 prio 1 \
        protocol ip u32 \
        match u32 0x00400000 0x00FC0000 at 0 \
        flowid 100:2

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Re: [LARTC] CBQ and prio problem

[Stef Coene]

On Monday 04 March 2002 13:11, MR wrote:
> Hi,
>  I'm trying to configure a Linux machine to act as a "DS router" (ie it
> should manage differents priorities based on the TOS field) and as a
> traffic shaper too (let's say 800Kbit of 10Mbit).
> I've used the following commands but i wasn't able to shape the outgoing
> traffic (the prio works fine).
>
> Thanks in advance for any idea,
>  Max
You create a bounded class of 800kbit.  So all traffic is bounded to 800kbit. 
 But after that, you attach 3 tbf qdisc's with rate = 10mbit.  Why?  What 
happens if you remove the 3 tbf qdisc's ?

>
> #!/bin/sh
>
> TC="/usr/sbin/stc"
> DEVICE="eth0"
> total="10Mbit"
>
> $TC qdisc add dev $DEVICE root handle 1: cbq bandwidth $total avpkt 1000 \
> cell 8
>
> $TC class add dev $DEVICE parent 1:0 classid 1:1 cbq bandwidth $total \
>     rate 800Kbit allot 1514 avpkt 1000 weight 80Kbit prio 8 maxburst 20 \
>     mpu 64 bounded
>
> $TC qdisc add dev $DEVICE parent 1:1 handle 100: prio bands 3 priomap 2 1 0
>
> $TC qdisc add dev $DEVICE parent 100:1 tbf rate 10Mbit burst 10Mbit \
> limit 10Mbit
> $TC qdisc add dev $DEVICE parent 100:2 tbf rate 10Mbit burst 10Mbit \
> limit 10Mbit
> $TC qdisc add dev $DEVICE parent 100:3 tbf rate 10Mbit burst 10Mbit \
> limit 10Mbit
>
>
> #############FILTERS############
>
> $TC filter add dev $DEVICE parent 1:0 prio 1 \
>         protocol ip u32 \
>         match u32 0x00200000 0x00FC0000 at 0 \
>         flowid 100:1
>
> $TC filter add dev $DEVICE parent 1:0 prio 1 \
>         protocol ip u32 \
>         match u32 0x00400000 0x00FC0000 at 0 \
>         flowid 100:2
>
> _______________________________________________
> LARTC mailing list / LARTC@mailman.ds9a.nl
> http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

-- 

stef.coene@docum.org
 More QOS info : http://www.docum.org/
 Title : "Using Linux as bandwidth manager"

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