Re: BGP and aggregation

[Austin Schutz <tex () off org>]

On Mon, May 13, 2002 at 06:57:19AM -0400, PS wrote:
> On Mon, 13 May 2002, E.B. Dreger wrote:
>
> > As long as this is getting messy... I'm tempted to suggest
> > confederations.  Or spending a few extra bucks on a second ASN,
> > although that doesn't scale.
>
> Multiple ASNs wouldn't solve anything in this case.  What was wanted was
> under normal circumstances both A and B only announce a /20, and when the
> link between A and B breaks announce more specifics.  Multiple ASN =
> inconsistent AS.. no no.

        Not necessarily. If 'A' originates the aggregate route it can still be
transited via 'B', though with an additional AS hop. Not a perfect solution,
but then neither is running a gre tunnel.

        Austin