Re: [Lsr] LSR: Using DSCP for path/topology selection Q

Rob,

Thats actually a good example, i had forgotten about that one.
This is also a lot more scalable than MTR given how (if i
remember correctly, you would only have  O(#DSCP,#egres-PE)
entries.

Cheers
    Toerless

On Thu, Nov 15, 2018 at 04:47:26PM -0800, Rob Shakir wrote:
> On Thu, 15 Nov 2018 at 16:07 Toerless Eckert <tte@cs.fau.de> wrote:
> 
> > > And btw I read Peter's note as possibility (or invitation) to define
> > > algorithm which takes into account DSCP rather then a announcement that
> > > this is not there and it should never be.
> >
> > Sure, i am only talking about the solutions that tried to use DSCP for
> > routing so far. I think those failed. And when other agree and we codify
> > that, then that would not exclude the option for new work (like what
> > Peter may have in mind) to superceed that recommendation.
> >
> 
> A number of networks on which I have worked have used DSCP-based tunnel
> selection to choose between RSVP-TE LSPs. This essentially is different
> routing based on DSCP, which seems to be something that you're trying to
> cover -- is that correct?
> 
> If so, given that these are running in real networks, I find it hard to
> conclude that any IETF standard should declare them as failed.
> 
> r.

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