Re: [LARTC] most out of qos

[Tomas Bonnedahl <tomas@yes.nu>]

well, if tcp throttles down at the point where packets are dropped is of course good, but still, when a download is peaking at the maximum speed
minus a couple kbits, the delay is terrible, that's what i want to change. any idea?

regards,

tomas bonnedahl

On Wed, Feb 05, 2003 at 10:13:27PM +0100, Stef Coene wrote:
> On Wednesday 05 February 2003 16:44, Tomas Bonnedahl wrote:
> > to get most out of qos in general, would the best thing be to set up qos on
> > both ends of a bottleneck with both ingress and egress filtering? the
> > reason for asking is because we have a 2mbit connection with egress
> > filtering qos, the problem is that we experience most downloads compared to
> > uploades and therefor the egress filtering doesnt provide much help.
> >
> > what we could do is to get ingress filtering on our side here, but i dont
> > know how much that would help really, the data has already passed the
> > bottleneck in the path. so, my question, would i experience any different
> > delay if adding ingress filtering?
> Yes.  A tcp connection will throttle down  if you drop packets.  But this is 
> not the same as egress shaping.
> 
> > it is a 2mbit fiber stub network which looks pretty much like this:
> >
> > lan - router - fw - isp - internet
> >
> > the egress qos is at the moment at the router which pretty much says
> > "prioritize interactive sessions".
> >
> >
> > since the filtering for qos is rather simple, just telnet/ssh to a certain
> > host, should i contact my isp and ask them to set some egress qos going to
> > our network on the cisco router that is at their place? btw, anyone know
> > how good the qos is on cisco 2600?
> I have no idea how the qos works on cisco router.
> Just give it a try and se what happens.
> 
> Stef
> 
> -- 
> 
> stef.coene@docum.org
>  "Using Linux as bandwidth manager"
>      http://www.docum.org/
>      #lartc @ irc.oftc.net
> 
> 
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