Re: [LARTC] limiting users on a 128kbit line

From: radus <radus@rdsor.ro>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] limiting users on a 128kbit line
Date: Thu, 20 Feb 2003 14:17:37 +0000	[thread overview]
Message-ID: <marc-lartc-104575072331126@msgid-missing> (raw)
In-Reply-To: <marc-lartc-104569091203067@msgid-missing>

Hello!
First, thanks for the reply...

> > 5 computers that get dedicated bandwidth and the rest go in a pool with
> > bigger priorities.
>
> I do not see the priorities in your script.  Only some of the filters have
> priorities, but it has nothing to do with scheduling (you should give
> prioirties to the HTB classes).
>

I made priorities only for the big class where the default traffic goes, so 
that the remaining 5 computers share the bandwidth equally (when it's free)
I should write prios for all classes ?

> You mean it all goes to 1:14 ?

Yes, exactly that....

>
> Quantum = rate/r2q
> For class 1:12, quantum = 10k/r2q = 10*1024(8*r2q) = 1280Bytes.
> This is smaller than MTU, that's why it complains that quantum is too
> small.
>
> Same thing for classes 1:13 and 1:14, quantum = 640 Bytes, which is smaller
> them MTU.
>
> What you can (and should) do is specify the quantum manually.
>
Could you give me an example for a class on how to specify the quantum ?

Radu

> > Here's the script :
> >
> > tc qdisc add dev eth1 root handle 1: htb default 14  r2q 1
> > tc class add dev eth1 parent 1: classid 1:1 htb rate 128kbit burst 2k
> > tc class add dev eth1 parent 1:1 classid 1:10 htb rate 48kbit burst 2k
> >
> > tc class add dev eth1 parent 1:1 classid 1:20 htb rate 12kbit ceil
> > 128kbit burst 2k
> >
> > tc class add dev eth1 parent 1:1 classid 1:30 htb rate 12kbit ceil
> > 128kbit burst 2k
> >
> > tc class add dev eth1 parent 1:1 classid 1:40 htb rate 12kbit ceil
> > 128kbit burst 2k
> >
> > tc class add dev eth1 parent 1:1 classid 1:50 htb rate 12kbit ceil
> > 128kbit burst 2k
> >
> > tc class add dev eth1 parent 1:1 classid 1:11 htb rate 20kbit ceil
> > 128kbit burst 2k
> >
> > tc class add dev eth1 parent 1:11 classid 1:12 htb rate 10kbit  burst 2k
> > tc class add dev eth1 parent 1:11 classid 1:13 htb rate 5kbit   burst 2k
> > tc class add dev eth1 parent 1:11 classid 1:14 htb rate 5kbit   burst 2k
> >
> > tc qdisc add dev eth1 parent 1:20 handle 20:  sfq perturb 15
> > tc qdisc add dev eth1 parent 1:30 handle 30:  sfq perturb 15
> > tc qdisc add dev eth1 parent 1:40 handle 40:  sfq perturb 15
> > tc qdisc add dev eth1 parent 1:50 handle 50:  sfq perturb 15
> >
> > tc qdisc add dev eth1 parent 1:12 handle 12:  sfq perturb 15
> > tc qdisc add dev eth1 parent 1:13 handle 13:  sfq perturb 15
> > tc qdisc add dev eth1 parent 1:14 handle 14:  sfq perturb 15
> >
> > tc filter add dev eth1 protocol ip parent 1: u32 match ip dst
> > 192.168.0.45 flowid 1:20
> >
> > tc filter add dev eth1 protocol ip parent 1: u32 match ip dst 192.168.0.4
> > flowid 1:30
> >
> > tc filter add dev eth1 protocol ip parent 1: u32 match ip dst
> > 192.168.0.50 flowid 1:40
> >
> > tc filter add dev eth1 protocol ip parent 1: u32 match ip dst
> > 192.168.0.38 flowid 1:50
> >
> > tc filter add dev eth1 protocol ip parent 1: prio 1 u32 match ip sport 80
> > 0xffff flowid 1:12
> > tc filter add dev eth1 protocol ip parent 1: prio 2 u32 match ip sport 25
> > 0xffff flowid 1:13
> > tc filter add dev eth1 protocol ip parent 1: prio 3 u32 match ip sport
> > 110 0xffff flowid 1:13
>

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