Re: question about correct way of shapping

Linux Advanced Routing and Traffic Control

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Paulo Ricardo Bruck wrote:

> 
> at some documents it's describe the use of IMQ and some other the use of
> dummy device. What's the best method ? From what I've read we use dummy
> to shape both lan and wan using dummy device. It's correct? If it's
> correct why does we use dummy insted shape at LAn and Wan Interfaces ?
> 

I've never used a dummy device. This looks interesting, though it
doesn't apply to your setup.

http://article.gmane.org/gmane.linux.network/21224

Were you reading something different? If so, post the link(s). IMQ
probably doesn't apply to you either.

You might have come across documents describing ingress shaping, which
deals with traffic coming into an interface rather than the usual
methods of shaping traffic as it leaves an interface. For a router
setup, like yours, ingress shaping is unnecessary because all traffic
(except a little bit for the router itself) can be shaped normally as it
leaves one interface or the other.

To shape upstream traffic, attach a qdisc to your Internet-side
interface; to shape downstream traffic, attach a qdisc to your LAN-side
interface.

> I intend use TC + iptables + debian sarge

That's what I use.

-Corey
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