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

[Cedric de Launois <delaunois@info.ucl.ac.be>]

Le ven 22/10/2004 à 14:28, Iljitsch van Beijnum a écrit :
> "When considering dual-homed IPv6stubs, we see in fig. 13 or in fig. 14 
> that the path diversity observed is already as good as the path 
> diversity of a 25-homed IPv4 stub."
> 
> :-)
> 
> But the question is: will this help us or hurt us? Basically, BGP 
> doesn't really know what the best path is, but it can usually detect 
> and avoid the bad ones. So you pretty much always get something 
> reasonable. With multi-address multihoming you get many more paths, 
> some of which are better than what BGP would have given you, but a lot 
> are worse. So the trick is to select the best one, or at least avoid 
> the bad ones. How do we do this?

Good question ! I'm currently working exactly at this point.
And I have a pretty fair solution (I believe)... I can't say
more just now, but expect some news from me about that in two
or three weeks ;)

Cedric