Re: [LARTC] Patch to allow for the ATM "cell tax"

[Stephen Hemminger <shemminger@osdl.org>]

On Fri, 03 Mar 2006 08:18:52 +1000
Russell Stuart <russell-lartc@stuart.id.au> wrote:

> On Thu, 2006-03-02 at 14:51 +0100, Markus Schulz wrote:
> > > Why you don't use the existing overhead parameter? It's useless to
> > > have two parameters which do the exact same thing (existing overhead
> > > and your atm).
> > > Only ATM Cell alignment must be added to rate table calculation.
> 
> The overhead and atm options don't do the "exact same 
> thing".  If the atm option is present, tc includes the
> atm cell alignment overheads in the rate table
> calculation.  Otherwise it doesn't.
> 
> As atm cell overheads aren't a fixed amount (they vary
> in a non-linear fashion between 6 and 202 bytes), you
> can't use the overhead option to calculate them.
> 
> > But it would be nice if this would be patched into upstream iproute 
> > source. Then there is no need of patching for qos at adsl links.
> 
>

I will put it in iproute2 commands when a definitive set of patches
is sent to me. So far, it still looks like it needs some fine tuning.
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