more specific routes in today reality

Hi,

On Tue, Oct 09, 2001 at 12:32:47PM +0200, Sascha E. Pollok wrote:
> >>  In this situation we are going to expect increase of ammount of:
> >> 
> >>        1. Routes with more than one origin.
> >
> >No - the more specifics are announced by the customer AS *only* (and the
> >upstream AS that this blocks belongs to will permit them "through").
> 
> This looks like a little bit different idea of doing it (like Vladimir
> said):
> 
>     "- If PI is requested for multi-homing please explain why the second
>        provider cannot route PA space as a more specific route (with the
>        PA block holder adding a more specific route too)."

This doesn't specify who is originating the BGP prefix.  Both providers
have to *route* it, of course.

Of course, even if it is not explicitely mentioned, the first provider
will also have to let the more-specific "through" (otherwise only the
second provider will get the traffic).

Gert Doering
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