"Perry E. Metzger" wrote:
>
> Brian E Carpenter <[EMAIL PROTECTED]> writes:
> > > and quantitative
> > > information about how much better it will be for them to
> > > have the flow
> > > label than not to have it.
> >
> > Nobody is going to publish that sort of competitive data. As noted earlier,
> > this is quite likely to be either qualitative (ability to classify ESP
> > traffic)
>
> We can already classify ESP traffic. The SPI for a particular host to
> host connection is externally visible likely unique for a given
> flow in most applications. (The VPN case is a bit different but the
> VPN case is, we hope, not the bulk of traffic in the future.)
Sorry, the SPI is no good for diffserv classification
because it has no semantics.
>
> We can also already label the individual packets according to
> traffic class.
No, because it's mutable. We need sonmeting that *isn't* mutable
and *does* have semantics for classification.
>
> > or simply a matter of heat dissipation and the marginal cost of
> > a chip set.
>
> Well, if it truly makes no difference, why are we advocating the change?
I didn't say it makes no difference. I said that the difference is more
likely to be in cost and waste heat than in speed.
Brian
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