Re: On the use of multiple PA prefixes or a single PI prefix for IPv6 multihoming

[Olivier Bonaventure <Bonaventure@info.ucl.ac.be>]

> Just a nit, note that in multihoming we are only selection addresses, 
> not full paths.
> This means that we are selecting the ingress and egress ISP of the 
> source and destination sites, but that the interdomain path will be 
> selected with other means i.e. BGP.

Agreed, but given that most AS-level paths on the Internet today are
between 3 to 5 AS hops, selecting the ingress ISP and the egress ISP
means that in practice you select most of the end-to-end path at the AS
level. This will remain true unless the diameter of the Internet
increases due to IPv6 multihoming...


Olivier