On Fri, Jan 13, 2017 at 4:54 PM, Marco Marzetti <[email protected]> wrote:

> <rant>
> Every time one suggests a change related to the IXPs world we spend
> days arguing if it affects the neutrality and how.
> Do we really need that?
> </rant>
>
> Anyway, i can't see why IXPs can blackhole traffic (if the destination
> requests it), but cannot do the same with prefixes.
> After all if a prefix is invalid the owner requested it to be verified
> by the other parties.
>
>
I think part of job's point (and randy's in a way) is that you actually
don't know if:
  192.168.0.0/23 AS1 AS3 AS8

is valid, even if you see a ROA:
192.168.0.0/16 AS8 max-len /23

... because there's nothing that keeps AS-ME from sending AS-JOB a route
with AS8 prepended on the as-path.


> I suggest to default to drop and, if possible, to switch to announce
> with community if the peer requests it (for instance someone may want
> to collect invalid routes for analysis).
>
>
i think you are describing implementations that the IXP may choose... I
don't know that this draft needs to specify that at all.

-chris


> On Fri, Jan 13, 2017 at 10:20 PM, Randy Bush <[email protected]> wrote:
> >> Adding [email protected] for reality check.
> >
> > no comment :)
> >
> > when you choose to use a route server [0], you have out-sourced much of
> > your policy and operational responsibilities.  seems to me that whether
> > this includes security decisions is a contract between the user and the
> > route server.
> >
> > so i might tell the server to drop invalids.  if i do not take that
> > (configurable, i presume) option, having the server mark them seems
> > helpful.
> >
> > randy
> >
> > --
> >
> > 0 - i suspect none of job, carlos, or i do.  so this is the experts
> >     telling other people what they should do. :)
> >
> > _______________________________________________
> > GROW mailing list
> > [email protected]
> > https://www.ietf.org/mailman/listinfo/grow
>
>
>
> --
> Marco
>
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