[LARTC] Shaping traffic by flows

[LARTC] Shaping traffic by flows

[Michael Ulitskiy]

Hi,

I'm not sure if this question already came up in this list, but 
I seem to be unable to find an answer for it. 
I have a server and a few thousand of clients that can access 
the server. I would like to setup a traffic shaping such a way 
that each particulat client is given a particular bandwith. 
Let's say each client (clients differentiated by ip address) is 
allowed to use no more than 100kbit of download bandwith.
So it is my understanding that traffic should be differentiated 
by flows and each flow should be given a particular bandwith
with any queueing  discipline available. The question is how to 
do it.
I can't figure out a way to accomplish it except writing thousands 
of filtering rules for each ip and also thousands classes for them.
I probably can use hashing filters but it wouldn't eliminate 
thousands of classes each with the same shaping rate.
So once again the question is whether it's possible to shape each
flow from a particular ip range to the particular rate?
Thanks everybody.

Michael
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Re: [LARTC] Shaping traffic by flows

[Stef Coene]

On Tuesday 13 May 2003 18:47, Michael Ulitskiy wrote:
> Hi,
>
> I'm not sure if this question already came up in this list, but
> I seem to be unable to find an answer for it.
> I have a server and a few thousand of clients that can access
> the server. I would like to setup a traffic shaping such a way
> that each particulat client is given a particular bandwith.
> Let's say each client (clients differentiated by ip address) is
> allowed to use no more than 100kbit of download bandwith.
> So it is my understanding that traffic should be differentiated
> by flows and each flow should be given a particular bandwith
> with any queueing  discipline available. The question is how to
> do it.
> I can't figure out a way to accomplish it except writing thousands
> of filtering rules for each ip and also thousands classes for them.
> I probably can use hashing filters but it wouldn't eliminate
> thousands of classes each with the same shaping rate.
> So once again the question is whether it's possible to shape each
> flow from a particular ip range to the particular rate?
Not without creating a lot of classes.  You can try the wrr qdisc :
http://wipl-wrr.sourceforge.net/
It creates 1 class for each ip-addres (or mac-address) it sees.

Stef

-- 

stef.coene@docum.org
 "Using Linux as bandwidth manager"
     http://www.docum.org/
     #lartc @ irc.oftc.net

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Re: [LARTC] Shaping traffic by flows

[Michael Ulitskiy]

> > So once again the question is whether it's possible to shape each
> > flow from a particular ip range to the particular rate?
> Not without creating a lot of classes.  You can try the wrr qdisc :
> http://wipl-wrr.sourceforge.net/
> It creates 1 class for each ip-addres (or mac-address) it sees.
> 
> Stef

Thanks.
I'm not quite clear whether wrr creates classes automatically or 
$MAX_CLASSES classes created at startup and then wrr just choose
wich one to use according to its internal classification?
Looks like the latter according to example script. If so, is this really the 
best option available?
If wrr does create classes automatically, I don't seem to be able to figure out
how to specify which queue discipline should be attached to created classes.
Thanks again for your help.

Michael
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Re: [LARTC] Shaping traffic by flows

[Matias Bjorling]

Hey

I'm developing a script which can set up rules for the clients by cbq and
htb.

Which create all the rules and such.

Write back if you want to be notified when i have a working version

Regards

Matias Bjorling
----- Original Message ----- 
From: "Michael Ulitskiy" <mdu113@acedsl.com>
To: <lartc@mailman.ds9a.nl>
Sent: Tuesday, May 13, 2003 8:28 PM
Subject: Re: [LARTC] Shaping traffic by flows


> > > So once again the question is whether it's possible to shape each
> > > flow from a particular ip range to the particular rate?
> > Not without creating a lot of classes.  You can try the wrr qdisc :
> > http://wipl-wrr.sourceforge.net/
> > It creates 1 class for each ip-addres (or mac-address) it sees.
> >
> > Stef
>
> Thanks.
> I'm not quite clear whether wrr creates classes automatically or
> $MAX_CLASSES classes created at startup and then wrr just choose
> wich one to use according to its internal classification?
> Looks like the latter according to example script. If so, is this really
the
> best option available?
> If wrr does create classes automatically, I don't seem to be able to
figure out
> how to specify which queue discipline should be attached to created
classes.
> Thanks again for your help.
>
> Michael
> _______________________________________________
> LARTC mailing list / LARTC@mailman.ds9a.nl
> http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

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