[LARTC] device independent qdisc?

[LARTC] device independent qdisc?

[mario.wolff]

Hello ALL,
is there a way to have a device independent qdisc, or a qdisc on some kind
of virtuall interface?

Background: I have a 5-Interface-Router with one Internet-Uplink.  The
Router should connect the clients on the other Interfaces to the Internet
and to each other client. As i understood the hole TC stuff i can only get
influence of outgoing traffic. In my case i can reduce the traffic of each
net by putting a qdisc on the netinterface. I´ve done that and it runs
fine. But the different nets could not take the free bandwith of other nets
because they have not the same root.

If i could have a device independent qdisc i could take this as root and
filter the traffic for the the different nets to the classes.

I also thougth about some kind of tunnel, where i route all traffic comming
from the internet to the first tunnelinterface and to each destination net
fram the other tunnelinterface. In this case i could put the needed qdisc
to the first interface and all would be ok.
But,
1) how to build a local tunnel and
2) how to route through the tunnel without route-loops or NATing the hole
internet.

Sorry for my kind of english, i hope its at least understandable!

Mit freundlichen Grüßen/Best regards
Mario Wolff


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Re: [LARTC] device independent qdisc?

[Stef Coene]

On Wednesday 20 March 2002 12:09, mario.wolff@sercon.de wrote:
> Hello ALL,
> is there a way to have a device independent qdisc, or a qdisc on some kind
> of virtuall interface?
>
> Background: I have a 5-Interface-Router with one Internet-Uplink.  The
> Router should connect the clients on the other Interfaces to the Internet
> and to each other client. As i understood the hole TC stuff i can only get
> influence of outgoing traffic. In my case i can reduce the traffic of each
> net by putting a qdisc on the netinterface. I´ve done that and it runs
> fine. But the different nets could not take the free bandwith of other nets
> because they have not the same root.
>
> If i could have a device independent qdisc i could take this as root and
> filter the traffic for the the different nets to the classes.
You can use the IMQ device.  ALL packets are first queued in this device and 
after that it's enqueued in the real device.  
http://luxik.cdi.cz/~devik/qos/imq.htm
Or you can take an other box and put that between the router and the uplink.


Stef

-- 

stef.coene@docum.org
 "Using Linux as bandwidth manager"
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Re: [LARTC] device independent qdisc?

[Martin Devera]

http://luxik.cdi.cz/~devik/qos/
look at IMQ

On Wed, 20 Mar 2002 mario.wolff@sercon.de wrote:

> Hello ALL,
> is there a way to have a device independent qdisc, or a qdisc on some kind
> of virtuall interface?

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Re: [LARTC] device independent qdisc?

[Adrian Chung]

On Wed, Mar 20, 2002 at 02:10:49PM +0100, Martin Devera wrote:
> http://luxik.cdi.cz/~devik/qos/
> look at IMQ
> 
> On Wed, 20 Mar 2002 mario.wolff@sercon.de wrote:
> 
> > Hello ALL,
> > is there a way to have a device independent qdisc, or a qdisc on some kind
> > of virtuall interface?

Could one use IMQ and a route filter to have 75% of the total
bandwidth of two devices go via one interface and 25% go via the
other?

There aren't many examples of IMQ in action, but I was wondering if
something like the following would be possible (bearing in mind I'm
new to this, and this might make no sense):

- Set up IMQ
- Attach HTB with two classes
- Use route filter to put traffic going out each WAN interface into
  each class
- One class (first interface) has a higher priority and is isolated,
  but can borrow from the other class (second interface).

I want to primarily use one interface, but when it gets full, also use
the other one.

--
Adrian Chung (adrian at enfusion-group dot com)
http://www.enfusion-group.com/~adrian
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