Re: A proposal for reducing routes due to multihoming

[coneill () oneill net]

On Tue, 29 Oct 1996, Wayne Bouchard wrote:
> > It's dead simple, really: Assign address blocks to pairs of providers.
> > Both providers announce those blocks all the time, and assign addresses
> > out of those blocks to customers who multihome between those two
> > providers.
>
> Subscriber A gets netblock from B who cooperates with C. Subscriber A
> hates C and goes with D. What now? D has to advertize the route and C
> has to stop. There goes the simplicity.

No.  The block is not PI space.  Subscriber A must renumber if he switches
to another provider. The block will still be advertised as the aggregate
w/o any holes.


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