Re: [Xen-devel] proposal of xt_physdev's patch to limit traffic

[Gianni Tedesco <gianni.tedesco@xxxxxxxxxx>]

On Thu, 2010-10-21 at 11:27 +0100, ahmed amamou wrote:
> Good morning every Body
> 
> I'm new in modules programming and I've made a patch to limit packet
> traffic in bridge(patch is joined with the mail).
> 
> In order to limit the traffic, i used the netback limitation method to
> count traffic with skb->len  for each vif to stop traffic, as i can't
> put down vif, i change the hotdrop flag to 1 (change was based on
> xt_physdev of dom 0 2.6.18.8 so  in the patch will find it 1 but it's
> easy to change the patch to recent dom 0 version by just changing
> *hotdrop=1; to *par->hotdrop=true;)
> 
> The problem that i have is that when i reach traffic limit (30mb/s by
> defaut and can be changed via proc EX: "echo vif1.0 312500,50000'
> >/proc/changeRXrate know that doing it via proc is the worst way but i
> don't know any other way to do it any suggestion will be welcome ) and
> begin drop traffic fell terribly and became 10mb/s
> 
> will be really thankful if anybody could help me with suggestions and
> advices in order to  solve this problem 

Isn't this possible with either QoS/tc possibly combined with IMQ
(intermediate queueing device) ?

In either case, I think linux-net is the place to discuss this.

Gianni


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